WO2016188346A1

WO2016188346A1 - Method and device for communication

Info

Publication number: WO2016188346A1
Application number: PCT/CN2016/082328
Authority: WO
Inventors: 焦斌; 谌丽; 秦飞
Original assignee: 电信科学技术研究院
Priority date: 2015-05-26
Filing date: 2016-05-17
Publication date: 2016-12-01
Also published as: CN106303905B; CN106303905A

Abstract

Disclosed are a method and device for communication, comprising: receiving on a distributed service center a communication request message of an end point node, where the communication request message carries an identifier of the end point node; transmitting a communication processing message of the end point node to a core network, where the communication processing message carries the identifier of the end point node; and, when a communication processing message transmitted by the distributed service center to the core network is received, returning a communication response message to the end point node. Employment of the present application not only greatly reduces the load that an access device incurs on the core network in storage and signal processing, but also localizes a control function, thus greatly reducing delay caused by a control plane signaling process.

Description

Communication method and device

The present application claims priority to Chinese Patent Application No. 201510275202.1, the entire disclosure of which is incorporated herein in

Technical field

The present invention relates to the field of communications technologies, and in particular, to a communication method and device for a machine type device.

Background technique

FIG. 1 is a schematic diagram of an existing cellular network architecture. In an existing cellular system, a terminal determines a serving base station according to a downlink pilot signal strength, and the serving base station is responsible for providing a data transmission service for the access terminal. The serving base station forwards the uplink data received by the terminal to the core network. The core network is responsible for verifying the identity of the terminal, storing the terminal context information, and providing the access terminal with a connection service to the external network.

In the prior art, the terminal completes the registration process to the network through an attach process. During the process of registering with the network, the core network Mobility Management Entity (MME) is responsible for saving the status information of the terminal, including security context information, activation session information, location area information, and the like. The status information of the terminal is stored in the core network. Therefore, if the access terminal is a machine type terminal, there are two problems.

First, because the number of machine-type terminals in the future will far exceed the number of existing terminals (it is predicted that it may reach 50 billion to 100 billion), if you want to establish a complete context for each machine type terminal in the core network, it will lead to core network storage. overwhelmed. In addition, the connection management function of the existing terminal also involves the core network, which means that each time the terminal enters the connection state, a large amount of signaling to the core network is generated, and the machine type terminal is likely to cause a signaling storm after accessing the network in a large amount.

Summary of the invention

The present invention provides a communication method and device for reducing the burden on the core network storage and signaling processing of the access device.

The embodiment of the present invention provides a communication method, including: receiving a communication request message of an EP on a DSC, where the communication request message carries an identifier of an EP; and transmitting, by the core network, a communication processing message of the EP, The communication processing message carries an identifier of the EP; and returns a communication response message to the EP.

In a possible implementation manner, when the EP accesses the network, the communication request message received on the DSC is an attach request message of the EP, and the attach request message further carries the identity verification information of the EP; the The communication processing message is an identity verification request message of the EP, and the identity verification request message further carries the identity verification information of the EP; after the core network returns the identity verification response message, the communication response message returned to the EP is an attach response. Message and assign a temporary identifier to the EP;

Or,

The communication request message received on the DSC is a detach request message of the EP, and the detach request message further carries a temporary identifier of the EP; the communication processing message of the EP sent to the core network is a status update of the EP. Message; the communication response message returned to the EP is a detach response message;

or,

The communication request message of the EP received on the DSC is a status update request message periodically sent by the EP, and the status update request message further carries a temporary identifier of the EP; the communication processing message sent to the core network is a terminal status update request message. The communication response message returned to the EP is a status update response message;

or,

The communication request message received on the DSC is a service activation request message, and the service activation request message further carries service identification information; when the DSC is authorized to provide the service corresponding to the service identifier to the EP in the cluster, the communication returned to the EP The response message is a service activation response message; when the DSC is not authorized to provide the service corresponding to the service identifier to the intra-cluster EP, the communication processing message sent to the core network is a service authorization update request message, and after being authorized, returning to the EP The communication response message is a service activation response message;

or,

The communication request message received on the DSC is a service deactivation request message of the EP, and the service deactivation request message further carries the service identification information; the communication processing message sent to the core network is a cluster service authorization update message; The communication response message is a service deactivation message.

In a possible implementation, when the core network returns the identity verification through the response message and returns the core network verification information, the method further includes: sending the core network verification information to the EP, where the core network verification information is used by the EP to access the network. Perform legality verification.

The possible implementation manner further includes: broadcast attachment information, where the attachment information carries information required for accessing the DSC; and receives a communication request message of the EP on the DSC, where the information carried in the communication request message is broadcast The information required to access the DSC required in the attached information.

In a possible implementation manner, the method further includes: resetting, according to the temporary identifier of the EP, a timer for updating the status information of the EP.

In a possible implementation, the method further includes: receiving a cluster service authorization update message sent by the core network; determining an EP according to the cluster service authorization update message, the service activated on the EP is an unauthorized service; and sending a service deactivation message to the EP ;

or,

The method further includes: receiving a service disable indication message sent by the core network, where the message carries an identifier of the EP and a disabled service identifier; determining an EP according to the identifier of the EP and the disabled service identifier; and sending, according to the disabled service identifier, the determined EP The business of the service deactivates the message.

A communication method is provided in the embodiment of the present invention, including: sending a communication request message to a DSC, where the communication is requested The message carries the identifier of the EP;

Receive the communication response message returned by the DSC.

In a possible implementation manner, when the EP accesses the network, the communication request message sent to the DSC is an attach request message, and the attach request message further carries the identity verification information of the EP;

The communication response message received by the receiving DSC is an attach response message and a temporary identifier assigned by the DSC;

Alternatively, the communication request message sent to the DSC is a detach request message, and the detach request message further carries a temporary identifier of the EP; the communication response message returned by the receiving DSC is a detach response message;

Or the communication request message sent to the DSC is a periodically sent status update request message, where the status update request message further carries a temporary identifier of the EP; and the received communication response message returned by the DSC is a status update response message;

Or the communication request message sent to the DSC is a service activation request message, where the service activation request message further carries service identification information; and the communication response message returned by the receiving DSC is a service activation response message;

Alternatively, the communication request message sent to the DSC is a service deactivation request message, and the service deactivation request message further carries the service identification information; and the communication response message returned by the receiving DSC is a service deactivation message.

In a possible implementation, before the communication request message sent to the DSC is an attach request message, the method further includes:

Receiving the attachment information of the DSC broadcast, where the attachment information carries information required to access the DSC;

A communication request message sent to the DSC, the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.

In a possible implementation manner, when receiving the broadcast attachment information sent by the multiple DSCs, determining the DSC to be accessed according to the access required information of each DSC and the access requirement of the EP;

Sending a communication request message to the DSC is to send a communication request message to the DSC to be accessed.

In a possible implementation, when the attach response message carries the core network authentication information, before sending the attach complete message to the DSC, the method further includes: performing legality verification on the accessed network according to the core network verification information; and sending the data to the DSC. The attach complete message is sent after the verification is passed.

In a possible implementation manner, the method further includes: receiving a service deactivation message sent by the DSC.

A communication method is provided in the embodiment of the present invention, including:

Receiving a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP;

Returning a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.

In a possible implementation manner, the communication processing message sent by the DSC to the core network is an identity verification request message of the EP, and the message further carries the identity verification information of the EP;

The communication processing response message returned to the DSC after the EP is authenticated according to the identifier and/or the authentication information of the EP and the stored subscription information of the EP is an authentication verification response message;

Or,

The communication processing message sent by the DSC to the core network is a service authorization update request message;

When determining the service authorization for the cluster managed by the DSC, the communication processing response message returned to the DSC is a service authorization response message, where the service authorization response message is used to indicate the service type that the DSC provides to the EP in the cluster.

In a possible implementation manner, when returning the authentication through the response message to the DSC, the method further includes:

The core network verification information is sent to the DSC, where the core network verification information is used by the EP to verify the validity of the accessed network.

In a possible implementation, the method further includes: receiving status information of each EP sent by the DSC; and updating status information of each EP according to the status information of each EP;

Or the method further includes: receiving a status update message of the EP sent by the DSC to the core network; and updating the status information of the EP according to the status information of the EP;

Or, further comprising: receiving a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP;

Updating the status information of the EP according to the terminal status update request message of the EP and the identifier of the EP;

Or further comprising: determining a service authorization execution status of the cluster managed by the DSC; and sending a cluster service authorization update message to the DSC according to the execution status;

Or the method further includes: sending a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier; and receives the service disable complete message sent by the DSC, where the service disable complete message carries the identifier of the EP And the disabled service identifier; the status information of the EP is updated according to the identifier of the EP and the disabled service identifier.

A communication device is provided in the embodiment of the present invention, including:

a terminal information receiving module, configured to receive, by the DSC, a communication request message of the EP, where the communication request message carries an identifier of the EP;

a core network information sending module, configured to send, to the core network, a communication processing message of the EP, where the communication processing message carries an identifier of the EP;

The terminal information sending module is configured to return a communication response message to the EP.

In a possible implementation manner, the terminal information receiving module is further configured to: when the EP accesses the network, receive an attach request message of the EP on the DSC, where the attach request message further carries the identity verification information of the EP;

The core network information sending module is further configured to send an identity verification request message of the EP to the core network, where the identity verification request message further carries the identity verification information of the EP;

The terminal information sending module is further configured to: after returning the identity verification through the response message in the core network, return an attach response message to the EP, and allocate a temporary identifier to the EP;

or,

The terminal information receiving module is further configured to receive an detach request message of the EP on the DSC, where the detach request The message also carries the temporary identifier of the EP;

The core network information sending module is further configured to send a status update message of the EP to the core network;

The terminal information sending module is further configured to return a detachment response message to the EP;

or,

The terminal information receiving module is further configured to receive, on the DSC, a status update request message periodically sent by the EP, where the status update request message further carries a temporary identifier of the EP;

The core network information sending module is further configured to send a terminal status update request message to the core network;

The terminal information sending module is further configured to return a status update response message to the EP;

or,

The terminal information receiving module is further configured to receive a service activation request message on the DSC, where the service activation request message further carries the service identification information;

The terminal information sending module is further configured to: when the DSC is authorized to provide the service corresponding to the service identification information to the intra-cluster EP, return a service activation response message to the EP;

Or the core network information sending module is further configured to: when the DSC is not authorized to provide the service corresponding to the service identifier to the intra-cluster EP, send a service authorization update request message to the core network;

The terminal information sending module is further configured to: after obtaining the authorization, return a service activation response message to the EP;

or,

a core network information receiving module, configured to receive a cluster service authorization update message sent by the core network;

The terminal information sending module is further configured to: after determining the EP according to the cluster service authorization update message, send a service deactivation message to the EP, where the activated service on the EP is an unauthorized service;

or,

a core network information receiving module, configured to receive a service disable indication message sent by the core network, where the service disable indication message carries an identifier of the EP and a disabled service identifier;

The terminal information sending module is further configured to: after determining the EP according to the identifier of the EP and the disabled service identifier, send a service deactivation message for the service to the EP according to the disabled service identifier;

or,

The terminal information receiving module is further configured to receive a service deactivation request message of the EP on the DSC, where the service deactivation request message further carries the service identification information;

The core network information sending module is further configured to send a cluster service authorization update message to the core network;

The terminal information sending module is further configured to return a service deactivation message to the EP.

In a possible implementation, the terminal information sending module is further configured to: when the core network returns the identity verification response message and return the core network verification information, send the core network verification information to the EP, where the core network verification information is used for the EP connection. The incoming network is verified for legality.

In a possible implementation, the terminal information sending module is further configured to broadcast the attached information, where the attached information carries information required to access the DSC;

The terminal information receiving module is further configured to receive the communication request message of the EP on the DSC, where the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.

In a possible implementation, the DSC information update module is configured to update the status information of each EP accessed on the DSC after the temporary identifier is allocated to the EP and the attach response message is returned.

a DSC information sending module, configured to send a communication request message to the DSC, where the communication request message carries an identifier of the EP;

The DSC information receiving module is configured to receive a communication response message returned by the DSC.

In a possible implementation manner, the DSC information sending module is further configured to: when the EP accesses the network, send an attach request message to the DSC, where the attach request message further carries the identity verification information of the EP;

The DSC information receiving module is further configured to receive a DSC return attachment response message, and a temporary identifier allocated by the DSC;

Alternatively, the DSC information receiving module is further configured to receive the attached information of the DSC broadcast, where the attached information carries information required for accessing the DSC.

The DSC information sending module is further configured to send a communication request message to the DSC, where the information carried in the communication request message is information required for accessing the DSC required in the broadcast attachment information;

or,

The DSC information sending module is further configured to send a detach request message to the DSC, where the message further carries a temporary identifier of the EP; the DSC information receiving module is further configured to receive the detachment response message returned by the DSC;

or,

The DSC information sending module is further configured to periodically send a status update request message to the DSC, where the status update request message further carries the temporary identifier of the EP; the DSC information receiving module is further configured to receive the DSC return status update response message;

or,

The DSC information sending module is further configured to send a service activation request message to the DSC, where the service activation request message further carries the service identification information; the DSC information receiving module is further configured to receive the service activation response message returned by the DSC;

or,

The DSC information receiving module is further configured to receive a service deactivation message sent by the DSC;

or,

The DSC information sending module is further configured to send a service deactivation request message to the DSC, where the service is deactivated. The request message also carries service identification information;

The DSC information receiving module is further configured to receive a service deactivation message returned by the DSC.

In a possible implementation, the DSC information sending module is further configured to: when receiving the attached information of the multiple DSC broadcasts, determine the DSC to be accessed according to the access required information of each DSC and the access requirement of the EP; A communication request message is sent to the DSC to be accessed.

In a possible implementation, the DSC information sending module is further configured to send an attach complete message to the DSC after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC.

In a possible implementation manner, the DSC information sending module is further configured to perform legality verification on the accessed network according to the core network verification information when the core network authentication information is carried in the attach response message, and send the attachment after the verification is passed. Message.

An information receiving module, configured to receive a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP;

The information sending module is configured to return a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.

In an embodiment, the information receiving module is further configured to receive an identity verification request message of the EP sent by the DSC to the core network, where the identity verification request message further carries the identity verification information of the EP;

The information sending module is further configured to: according to the identifier and/or the identity verification information of the EP, and the stored subscription information of the EP, after the EP passes the identity verification, return an identity verification through response message to the DSC;

or,

The information receiving module is further configured to receive status information of each EP sent by the DSC;

The core network information update module is further configured to update status information of each EP according to status information of each EP;

or,

The information receiving module is further configured to receive a status update message of the EP sent by the DSC to the core network;

The core network information update module is further configured to update status information of the EP according to the status update message of the EP;

or,

The information receiving module is further configured to receive a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP;

The core network information update module is further configured to update the status information of the EP according to the terminal status update request message of the EP and the identifier of the EP;

or,

The information receiving module is further configured to receive a service authorization update request message sent by the DSC to the core network;

The information sending module is further configured to return to the DSC when determining to perform business authorization for the cluster managed by the DSC The service authorization response message is used to indicate a service type that the DSC provides to the EP in the cluster;

or,

The information sending module is further configured to determine a service authorization execution status of the cluster managed by the DSC, and send a cluster service authorization update message to the DSC according to the execution status;

or,

The information sending module is further configured to send a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier;

The information receiving module is further configured to receive a service disable complete message sent by the DSC, where the service disable complete message carries the identifier of the EP and the disabled service identifier;

The core network information update module is further configured to update the status information of the EP according to the identifier of the EP and the disabled service identifier.

In a possible implementation manner, the information sending module is further configured to: when returning the identity verification through the response message to the DSC, send the core network verification information to the DSC, where the core network verification information is used by the EP to verify the legality of the accessed network. .

In a possible implementation, the core network information update module is configured to store the presence status information of the EP and the DSC information serving the EP after returning the identity verification response message to the DSC.

a processor for reading a program in the memory and performing data processing with the transceiver;

A transceiver for transmitting and receiving data under the control of a processor, performing the following processes:

Receiving a communication request message of the EP, where the communication request message carries an identifier of the EP;

Sending, by the core network, a communication processing message of the EP, where the communication processing message carries an identifier of the EP;

A communication response message is returned to the EP.

In a possible implementation manner, when the EP accesses the network, the transceiver receives an attach request message of the EP on the DSC, where the attach request message further carries the identity verification information of the EP;

The transceiver sends the EP authentication request message to the core network, where the identity verification request message further carries the identity verification information of the EP;

After the transceiver returns the identity verification response message through the core network, the transceiver returns an attach response message to the EP, and allocates a temporary identifier to the EP;

or,

The transceiver is further configured to receive the detach request message of the EP on the DSC, where the detach request message further carries the temporary identifier of the EP;

The transceiver is further configured to send a status update message of the EP to the core network;

The transceiver is further configured to return a detach response message to the EP;

or,

The transceiver is further configured to receive, on the DSC, a status update request message periodically sent by the EP, where the status update request message further carries a temporary identifier of the EP;

The transceiver is further configured to send a terminal status update request message to the core network;

The transceiver is further configured to return a status update response message to the EP;

or,

The transceiver is further configured to receive a service activation request message on the DSC, where the service activation request message further carries service identification information;

The transceiver is further configured to: when the DSC is authorized to provide the service corresponding to the service identification information to the intra-cluster EP, return a service activation response message to the EP;

Or the transceiver is further configured to: when the DSC is not authorized to provide the service corresponding to the service identifier to the intra-cluster EP, send a service authorization update request message to the core network;

The transceiver is further configured to return a service activation response message to the EP after being authorized;

or,

The transceiver is configured to receive a cluster service authorization update message sent by the core network;

After determining the EP according to the cluster service authorization update message, the processor sends a service deactivation message to the EP through the transceiver, and the service activated on the EP is an unauthorized service;

or,

Receiving, by the transceiver, a service disable indication message sent by the core network, where the service disable indication message carries an identifier of the EP and a disabled service identifier;

After determining, by the processor, the EP according to the identifier of the EP and the disabled service identifier, sending, by the transceiver, the service deactivation message for the service to the EP according to the disabled service identifier;

or,

The transceiver receives the service deactivation request message of the EP on the DSC, and the service deactivation request message further carries the service identification information;

The transceiver is further configured to send a cluster service authorization update message to the core network;

The transceiver is further configured to return a service deactivation message to the EP.

In a possible implementation, the transceiver is further configured to: when the core network returns an identity verification response message and return the core network verification information, send the core network verification information to the EP, where the core network verification information is used by the EP to access the The network performs legality verification.

In a possible implementation manner, the transceiver is further configured to broadcast the attached information, where the attached information carries information required to access the DSC;

The transceiver is further configured to receive, by the DSC, a communication request message of the EP, where the message carried in the communication request message The information is the information required to access the DSC required in the broadcast attachment information.

In a possible implementation manner, the processor allocates the temporary identifier to the EP through the transceiver, and after returning the attach response message by the transceiver, updates the status information of each accessed EP stored on the DSC.

A transceiver for receiving and transmitting data under the control of a processor, performing the following processes:

Sending a communication request message to the DSC, where the communication request message carries an identifier of the EP;

Receive the communication response message returned by the DSC.

In a possible implementation manner, the transceiver is further configured to: when the EP accesses the network, send an attach request message to the DSC, where the attach request message further carries the identity verification information of the EP;

The transceiver is further configured to receive a DSC return attachment response message and a temporary identifier allocated by the DSC;

or,

The transceiver is further configured to receive the attached information of the DSC broadcast, where the attached information carries information required to access the DSC.

The transceiver is further configured to send a communication request message to the DSC, where the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information;

or,

The transceiver is further configured to send a detach request message to the DSC, where the message further carries a temporary identifier of the EP;

The transceiver is further configured to receive a detachment response message returned by the DSC;

or,

The transceiver is further configured to periodically send a status update request message to the DSC, where the status update request message further carries a temporary identifier of the EP;

The transceiver is further configured to receive a DSC return status update response message;

or,

The transceiver is further configured to send a service activation request message to the DSC, where the service activation request message further carries the service identification information;

The transceiver is further configured to receive a service activation response message returned by the DSC;

or,

The transceiver is further configured to receive a service deactivation message sent by the DSC;

or,

The transceiver is further configured to send a service deactivation request message to the DSC, where the service deactivation request message further carries the service identification information;

The transceiver is further configured to receive a service deactivation message returned by the DSC.

In a possible implementation manner, the transceiver is further configured to: when receiving the attachment information of the multiple DSC broadcasts, determine the DSC to be accessed according to the access required information of each DSC, and the access requirement of the EP; and The DSC to be accessed sends a communication request message.

In a possible implementation, the transceiver is further configured to send an attach complete message to the DSC after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC.

In a possible implementation manner, the processor is further configured to perform legality verification on the accessed network according to the core network verification information when the core network authentication information is carried in the attach response message, and send the attachment through the transceiver after the verification is passed. Complete the message.

The communication processing response message returned by the processor to the DSC after the EP passes the identity verification according to the identifier and/or the identity verification information of the EP and the stored subscription information of the EP is an identity verification response message;

or,

When the processor determines to perform the service authorization for the cluster managed by the DSC, the communication processing response message returned by the transceiver to the DSC is a service authorization response message, where the service authorization response message is used to indicate the service type that the DSC provides to the EP in the cluster. .

In a possible implementation manner, when the transceiver returns an authentication response message to the DSC, the transceiver further includes:

In a possible implementation manner, the method further includes:

The transceiver receives status information of each EP sent by the DSC;

The processor updates the status information of each EP according to the status information of each EP;

or,

Further includes:

The transceiver receives a status update message of the EP sent by the DSC to the core network;

The processor updates the status information of the EP according to the status information of the EP;

Or,

Further includes:

Receiving, by the transceiver, a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP;

The processor updates the status information of the EP according to the terminal status update request message of the EP and the identifier of the EP;

or,

Further includes:

The processor determines a service authorization execution status of the cluster managed by the DSC;

Sending a cluster service authorization update message to the DSC according to the execution status;

or,

Further includes:

The transceiver sends a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier;

The transceiver receives the service disable complete message sent by the DSC, where the service disable complete message carries the identifier of the EP and the disabled service identifier;

The processor updates the status information of the EP according to the identifier of the EP and the disabled service identifier.

The beneficial effects of the present invention are as follows:

In the embodiment of the present invention, by decentralizing the control function of the network to the terminal EP to the DSC of the local access network, the burden caused by the access device on the core network storage and signaling processing can be greatly reduced. Moreover, the localization of the control function will greatly shorten the delay caused by the control plane signaling process.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a schematic diagram of an existing cellular network architecture;

2 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention;

3 is a schematic flowchart of implementing a communication method implemented on a DSC according to an embodiment of the present invention;

4 is a schematic flowchart of implementing a communication method implemented on an EP according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of an implementation method of a communication method implemented on a core network according to an embodiment of the present invention; FIG.

6 is a schematic flowchart of an implementation process of an EP attaching network according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a process for triggering detachment of a terminal EP according to an embodiment of the present invention;

FIG. 8 is a schematic flowchart of a process for triggering periodic state update of a terminal EP according to an embodiment of the present invention;

FIG. 9 is a schematic flowchart of a terminal EP triggering service activation implementation process according to an embodiment of the present invention;

10 is a schematic flowchart of an implementation process of deactivation of an MTC class terminal initiated service according to an embodiment of the present invention;

11 is a schematic flowchart of a service deactivation implementation process for a cluster triggered by a core network according to an embodiment of the present invention;

12 is a schematic flowchart of a service disabling implementation process for a terminal triggered by a core network according to an embodiment of the present invention;

13 is a schematic structural diagram of a communication device on a DSC according to an embodiment of the present invention;

14 is a schematic structural diagram of a communication device on an EP according to an embodiment of the present invention;

15 is a schematic structural diagram of a communication device on a core network according to an embodiment of the present invention;

16 is a schematic structural diagram of a DSC according to an embodiment of the present invention;

17 is a schematic structural view of an EP in an embodiment of the present invention;

FIG. 18 is a schematic structural diagram of a communication device on another core network according to an embodiment of the present invention.

detailed description

Specific embodiments of the present invention will be described below with reference to the accompanying drawings.

In the technical solution provided by the embodiment of the present invention, the local "authorized device" of the access network is used to access the network in order to reduce the burden on the core network and avoid the possibility of the signaling storm. The state context and basic functions of the type terminal are managed. Only a small amount of terminal subscription information, and basic state information of the terminal and Distributed Service Center (DSC) information serving the terminal are stored in the core network.

The implementation environment will be described below.

In the Bluetooth system of the MESH (mesh network, such as self-organizing or no fixed infrastructure) network model, a cluster head and a series of end nodes (EndPoint) form a cluster, and the intra-cluster EndPoint communication is controlled by the cluster head device. The intra-cluster communication uses the 2.4 GHz common frequency band to avoid interference by frequency hopping. Statically configured channel and security parameters are used between the cluster head and the EndPoint. Each cluster is independent of each other, and EndPoint members between different clusters cannot communicate with each other.

2 is a schematic structural diagram of a wireless communication system including: a MESH access network, a backhaul network, and a core network. The MESH access network is connected to the core network through a backhaul network.

The MESH network supports the characteristics of the air interface multi-hop and the direct communication between the devices through the air interface. In addition to the characteristics of the traditional MESH network, the MESH access network in the embodiment of the present invention has self-organizing characteristics (SelfOrganized) and none. The characteristics of the infrastructure (Infrastructureless).

The backhaul network includes a wired backhaul network, a wireless backhaul network, and a mobile cellular backhaul network.

The core network consists of various dedicated and general-purpose servers, data centers, routers, etc. It is responsible for contract management, user identity verification, authentication, policy control, billing management, and business management functions for various access devices.

The MESH access network mainly provides services for Machine-Type Communication (MTC), in which Sensors (Sensors) (for example, temperature sensors, pressure sensors, cameras, etc.) can be bound to the EndPoint, or they can be tied. Actuators (eg, accelerators, brakes, steering gears, robotic arms, etc.) can also be bound to physical entities (eg, cars, bicycles, helmets, glasses, smart watches, unmanned aerial vehicles, etc.).

Before introducing the specific system architecture, the following interfaces in Figure 2 are introduced:

Me1 interface: An interface established between the DSC and the Network Service Center (NSC).

Me2 interface: The interface established between the DSC and the DSC.

Me3 interface: The interface established between the DSC and the end node (EndPoint, EP).

Me4 interface: Interface established between the EP and the EP.

The MESH access network includes at least one DSC and at least one EP, and the core network includes at least one NSC.

Each entity is described below.

1, EP

The EP is an MTC type access device or a wearable device with communication function, and obtains a data transmission service by accessing a "cluster". Ability to bind to specific physical devices such as various types of sensors, actuators, accelerators, brakes, robotic arms, aircraft, automobiles, bicycles, safety helmets, smart glasses, smart watches, and more. Depending on the specific physical device being bound, you can select an EP with different communication capabilities. A typical EP is a communication scenario that is oriented for close distances (eg, less than 100 m) and low data rates (eg, less than 1000 bits/s). The embodiments of the present invention are also applicable to long-distance high-rate EP.

2, DSC

The DSC is configured to transmit EP-related information in the corresponding cluster with the core network through the backhaul network; wherein the DSC is connected to each EP in the corresponding cluster. As a function, DSC can be configured on a variety of devices, including hardware devices such as mobile terminal devices, base station devices, and server devices.

The DSC and the surrounding and DSC connected EndPoints form a cluster.

The DSC is responsible for managing and maintaining the cluster. Specifically, the DSC manages the EPs in the corresponding clusters, coordinates communication with other neighboring clusters, and performs interference management.

If the MESH access network shares radio resources with other wireless networks, the DSC can also coordinate interference with adjacent or co-covered heterogeneous radio resource control entities and perform cross-system communication with different systems. For example, the DSC can notify the surrounding DSC or Local Service Center (LSC) of the time or frequency information of the radio resources allocated for "intra-cluster communication". Correspondingly, the surrounding DSC and LSC avoid using the same time or frequency for communication.

The DSC may also notify the surrounding DSC or LSC of the interference information measured by itself or the intra-cluster EP; correspondingly, the surrounding DSC or LSC may determine that it interferes with other clusters or "local access network" communication, and may reduce the transmission power. In other ways, weaken the interference.

In terms of business layer and cluster member management: DSC is responsible for participating in the maintenance of member lists, for cluster member authentication, and for maintaining the device types and service requirements associated with EndPoint.

MESH access network level: DSC is used as the control point of the cluster, and is also responsible for coordinating communication with other adjacent clusters and interference management.

In terms of cross-system coordination: For the sharing of radio resources between the MESH access network and other wireless networks (such as cellular), the DSC is also responsible for coordinating interference and cross-system communication with adjacent or co-covered heterogeneous radio resource control entities (eg The DSC is responsible for coordinating the base station for interference coordination).

In summary, the DSC is mainly composed of clusters with adjacent EndPoints, and the DSC is responsible for managing the "cluster". DSC supports hardware and software decoupling and software configurability. The DSC is responsible for forwarding the authentication information obtained from the EP class terminal to the core network, and providing the terminal with access services after the EP class terminal authenticates through the core network. In addition, the DSC is responsible for notifying the core network of the "cluster" information managed by itself, wherein the cluster information may include terminal identification information in the cluster and service information activated by the terminal in the cluster.

3, NSC

The NSC is responsible for terminating the access network to the core network control plane interface. The NSC supports hardware and software decoupling and software configurability. details as follows:

The NSC is configured to transmit the received DSC information to the core network through the backhaul network. That is to say, in terms of connection management, the NSC is responsible for terminating the control plane connection of the MESH access network to the core network.

For network layer security, the NSC is responsible for authenticating the DSC and establishing a secure tunnel.

Specifically, the NSC can authenticate the DSC and establish a secure tunnel for transmitting data over the backhaul network between the DSCs after the verification is passed. For example, NSC and DSC implement identity authentication through a certificate mechanism, and establish a secure channel for IPsec (IP security, IP, Internet Protocol, Internet Protocol) to ensure the security of the Me1 interface.

The NSC can also manage EPs and specific access devices connected to the DSC at the service layer and identity.

The NSC is responsible for processing the control plane signaling received from the MESH access network and the cellular access network, including the EP, device identity authentication, device type and service type verification and activation process associated with the EP, and the device Activate sessions to a specific external network, and so on.

For example, the NSC is responsible for managing the status information of the EP, including tracking management ("cluster" information currently accessed by the EP), session management (such as the service currently activated by the EP), and identity management (such as the device type and service type of the EP contract). .

In implementation, the NSC is a central control unit and the DSC is a distributed control unit.

In terms of management, the DSC is responsible for controlling local and time-critical functions. The NSC is responsible for the overall, low latency requirements and controls for high security requirements.

The core network itself can deploy one or more NSCs, and different NSCs are equal to each other.

The technical solution provided by the embodiment of the present invention is that the subscription scheme of the EP-type terminal is more flexible, and the operator core network can save the identity verification information of the EP-type terminal obtained from the actual user and/or the device information of the EP-type terminal (signing contract Service information), and save the basic status information after the EP terminal is connected to the network. The core network performs hosted management of the EP type access terminal through an Authorized Device configured with a DSC function. The authorized device only needs to sign the contract with the operator. The operator configures the authorized device to support the DSC distributed service center function through software. The authorized device configured with the DSC function and the EP type access terminal can form a dynamic network through self-organization. The DSC is responsible for management. DSC treats the "group information" (or "cluster information") of the dynamic network it manages as a core of the overall report. The network and the core network can perform charging, policy control and other functions according to "group information" or "cluster information". In addition, the core network can also perform charging according to the on-net time and activation service type of the EP-type terminal.

The difference from the prior art is that the EP type terminal is visible to the core network, but the operator's subscription management for the EP type terminal is more flexible than the prior art, and the EP type terminal does not need to send the universal subscriber identity module in advance (Universal Subscriber Identity Module). (USIM) card access network (for example, the actual user of the EP, including the plant manager or the depot, can purchase the EP type terminal and synchronize the authentication information of the EP type terminal before the EP type terminal accesses the network. Go to the carrier authentication server). During the EP access network process, the DSC notifies the core network of the accessed EP identity verification information, and the core network performs the identity of the EP device according to the EP identity verification information obtained from the user (for example, the factory manager or the depot). verification. In terms of the charging policy, the operator can charge the cluster managed by the DSC as a whole, and can also separately charge the EP type terminal.

By decentralizing the network-to-terminal control function to the local access network, the burden on the core network storage and signaling processing of the access device can be greatly reduced. Moreover, the localization of the control function will greatly shorten the delay caused by the control plane signaling process. Specific embodiments will be described below.

In the description process, the implementations from the DSC, the EP, and the core network side will be described separately, and then the implementation of the three phases at each stage will be described by examples. These phases are: the terminal attaching network process, The terminal triggers the Detach process, the terminal triggers the periodic state update process, the terminal triggers the service activation process, the MTC class terminal initiates the service deactivation process, the core network triggers the service deactivation process for the cluster, The service-disabled process for the terminal triggered by the core network is also aimed at implementing the control functions of the network to the terminal through the implementation of the DSC, the EP and the core network at various stages. Local access network for this purpose.

Obviously, when it is stated separately, it does not mean that the three must cooperate with the implementation. In fact, when the three are implemented separately, they also solve the problems of DSC, EP and core network side, but only when the three are used together, they will get Better technical results.

FIG. 3 is a schematic diagram of an implementation process of a communication method implemented on a DSC, including the following steps:

Step 301: Receive a communication request message of the EP on the DSC, where the communication request message carries an identifier of the EP.

Step 302: Send a communication processing message of the EP to a core network, where the communication processing message carries an identifier of an EP.

Step 303: Return a communication response message to the EP.

FIG. 4 is a schematic diagram of an implementation process of a communication method implemented on an EP, including the following steps:

Step 401: Send a communication request message to the DSC, where the communication request message carries an identifier of the EP.

Step 402: Receive a communication response message returned by the DSC.

FIG. 5 is a schematic diagram of an implementation process of a communication method implemented on a core network, including the following steps:

Step 501: Receive a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP.

Step 502: Return a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.

Embodiment 1

This embodiment is used to describe the implementation of the terminal EP attach network. In this process, the DSC, the EP, and the core network are as follows:

1, on the DSC

When the EP accesses the network, the communication request message received on the DSC is an attach request message of the EP, and the message further carries the identity verification information of the EP;

The communication processing message sent to the core network is an identity verification request message of the EP, and the identity verification request message further carries the identity verification information of the EP;

After the core network returns the identity verification response message, the communication response message returned to the EP is an attach response message, and a temporary identifier is assigned to the EP.

In the implementation, when the core network returns the authentication through the response message and returns the core network verification information, the method further includes:

Sending core network authentication information to the EP, where the core network verification information is used by the EP to verify the validity of the accessed network.

In the implementation, in order to enable the EP to know how to access the DSC, it may further include:

The attached information is broadcast, and the attached information carries information required for accessing the DSC.

The communication request message of the EP is received on the DSC, and the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.

In the implementation, after the temporary identifier is assigned to the EP, and the attachment response message is returned, the method further includes:

Update the status information of each EP accessed on the DSC.

In the implementation, after updating the terminal status information of the access saved on the DSC, the method further includes:

The updated status information of each EP is sent to the core network.

2, on the EP

When the EP accesses the network, the communication request message sent to the DSC is an attach request message, and the attach request message further carries the identity verification information of the EP;

The communication response message received by the receiving DSC is an attach response message and a temporary identifier assigned by the DSC.

In the implementation, it may further include:

Receiving broadcast attachment information sent by the DSC, where the attachment information carries information required for accessing the DSC.

a communication request message sent to the DSC, where the information carried in the communication request message is in the attached information of the broadcast Required information to access the DSC.

In the implementation, in the case that multiple DSCs are available at the same time, when receiving the information of multiple DSC broadcasts, the information to be accessed according to the access requirements of each DSC and the access requirements of the EP may be determined. DSC;

In the implementation, after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC, the method further includes:

An attach complete message is sent to the DSC.

In an implementation, before the attaching the completion message to the DSC, the method further includes:

Performing legality verification on the accessed network according to the core network verification information;

Sending an attach complete message to the DSC is sent after the verification is passed.

3. On the core network side

The communication processing message sent by the DSC to the core network is an authentication request message of the EP, and the identity verification request message further carries the identity verification information of the EP;

According to the identification and/or authentication information of the EP, and the stored subscription information of the EP, after the EP passes the identity verification, the communication processing response message returned to the DSC is an authentication verification response message.

In the implementation, when returning the authentication through the response message to the DSC, the method further includes:

In the implementation, after returning the authentication through the response message to the DSC, the method further includes:

The in-network status information of the EP and the information of the DSC serving the EP are stored.

In the implementation, it may further include:

Receiving status information of each EP sent by the DSC;

The status information of each EP is updated according to the status information of each EP.

In this embodiment, in the attaching process, the core network authenticates the EP type terminal according to the identity verification information of the EP type terminal obtained from the user (for example, the factory manager or the depot), and the EP type terminal passes the core network identity verification. The DSC is responsible for providing access services for EP type terminals according to the device type of the EP or the service list signed by the EP. The core network may perform charging according to the on-network status of the collected EP type terminal (for example, according to the length of time that the EP type terminal is attached to the network).

The following is an example to illustrate.

6 is a schematic diagram of an implementation process of an EP attached network, as shown in the figure, which can be as follows:

Step 601: The DSC sends a system broadcast message by using a broadcast mode, where the network identifier, the DSC identifier, the DSC support service list information, and the configuration information required by the terminal to initiate the access process are carried.

Step 602: According to the network identifier, the DSC identifier, and the DSC support service list information carried in the system broadcast message, the terminal may perform a network selection process according to the type of the device and the type of the network to be accessed, and according to the slave system after completing the network selection. The access configuration information obtained in the broadcast message initiates a network access procedure. In the network access process, the terminal sends an attach request message to the DSC, where the attach request message carries the fixed identifier information of the terminal and the terminal identity verification information.

Step 603: The DSC sends an identity verification request to the core network, where the identity verification request carries the fixed identifier of the terminal and the terminal identity verification information.

Step 604: The core network authenticates the terminal according to the terminal fixed identifier received from the DSC, the terminal identity verification information, and the previously saved terminal subscription information (for example, by using a security certificate mechanism or the like). After the terminal identity information is verified, the network status information of the terminal (for example, the normal attached state) is saved, and the service DSC information of the terminal is also saved.

Step 605: After completing the identity verification of the terminal, the core network sends the identity verification completion to the DSC, and carries the terminal fixed identifier, the core network verification information, and the security context information for the terminal, and may also carry the terminal subscription service list.

Step 606: The DSC allocates a terminal temporary identifier to the terminal, and establishes a context for the terminal, and saves the terminal fixed identifier information, the terminal temporary identifier information, the terminal security context information, and the terminal subscription service list. The DSC sends an attach response message to the terminal, where the terminal temporarily identifies the information, the terminal fixes the identifier information, and the core network authentication information.

Step 607: The terminal verifies the validity of the network according to the received core network verification information and the security context pre-stored by the terminal. The terminal saves temporary identity information from the terminal.

Step 608: After completing the verification of the network validity, the terminal sends an attach complete message to the DSC, where the attach complete message may carry the temporary identifier information of the terminal.

Step 609: The DSC updates the locally saved terminal state information (for example, an attached state).

Step 610: The DSC sends terminal status information to the core network, where the terminal includes fixed identifier information and terminal status information. The core network (for example, the contract center) saves the terminal status information.

Embodiment 2

This embodiment is used to describe the implementation of the terminal EP triggering Detach (deregister). In this process, the DSC, the EP, and the core network are as follows:

1. On the DSC:

The communication request message received on the DSC is a detach request message of the EP, and the detach request message further carries a temporary identifier of the EP;

The communication processing message of the EP sent to the core network is a status update message of the EP;

The communication response message returned to the EP is a detach response message.

2. On the EP:

The communication request message sent to the DSC is a detach request message, and the detach request message further carries a temporary identifier of the EP;

The communication response message received by the receiving DSC is a detach response message.

3. On the core network side:

Receiving a status update message of the EP sent by the DSC to the core network;

The status information of the EP is updated according to the status information of the EP.

The following is an example to illustrate.

FIG. 7 is a schematic diagram of a terminal EP trigger detachment implementation process, which can be as follows:

Step 701: Trigger a detach (logout) process, such as triggering the detach process before the terminal is removed or shut down.

Step 702: The terminal sends a detach request message to the DSC, where the terminal temporary identifier may be carried.

Step 703: The DSC sends a terminal status update message to the core network, where the terminal status update message carries the terminal fixed identifier and the presence status information (eg, the off-network status). The core network (for example, the Home Subscriber Server (HSS)) updates the presence status of the terminal to the off-network state.

Step 704: The DSC deletes the locally saved terminal context information.

Step 705: The DSC sends a detachment response message to the terminal, which may carry the terminal temporary identifier.

Embodiment 3

This embodiment is used to describe the implementation of the terminal EP triggering periodic state update. In this process, the DSC, EP, and core network are as follows:

1, on the DSC

The communication request message of the EP received on the DSC is a status update request message periodically sent by the EP, and the status update request message further carries a temporary identifier of the EP; the communication processing message sent to the core network is a terminal status update request message; The communication response message returned to the EP is a status update response message.

In an implementation, the method further includes: resetting, according to the temporary identifier of the EP, a timer for updating the status information of the EP.

2, on the EP

The communication request message sent to the DSC is a periodically sent status update request message, and the status update request message further carries a temporary identifier of the EP; the communication response message returned by the receiving DSC is a status update response message.

3. On the core network side

Receiving a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP; and updating the status information of the EP according to the terminal status update request message and the identifier of the EP.

In this embodiment, after the terminal successfully attaches to the network, the terminal side and the DSC respectively start a status update timer. The terminal initiates a status update process to the network after the timer expires. If the DSC does not receive the end after the timer T1 expires. The status update message of the terminal, the DSC considers that the terminal is in an attached abnormal state, and implicitly releases the terminal context after the timer T2 times out.

The following is an example to illustrate.

FIG. 8 is a schematic diagram of a terminal EP triggering periodic state update implementation process, as follows:

Step 801: After the status update timer expires, the terminal triggers a periodic status update process.

Step 802: The terminal sends a status update request message to the DSC, where the status update request message carries the temporary identifier of the terminal.

Step 803: The DSC determines the terminal context according to the temporary identifier of the terminal, and updates the terminal status information in the terminal context. Among them, the DSC also resets the local status update timer T1.

Step 804: The DSC sends a status update response message to the terminal, and can simultaneously carry the temporary identifier of the terminal.

Step 805: The DSC sends a terminal status update message to the core network, where the terminal carries the terminal fixed identifier information, and the terminal is in the network status update information. The core network updates the saved terminal status information.

Embodiment 4

This embodiment is used to describe the implementation of the terminal EP triggering service activation. In this process, the DSC, the EP, and the core network are as follows:

1. On the DSC:

The communication request message received on the DSC is a service activation request message, and the message further carries service identification information. When the DSC is authorized to provide the service corresponding to the service identification information to the intra-cluster EP, the communication response message returned to the EP is The service activation response message; or, when the DSC is not authorized to provide the service corresponding to the service identification information to the intra-cluster EP, the communication processing message sent to the core network is a service authorization update request message, and after being authorized, returning to the EP The communication response message is a service activation response message.

In an implementation, after returning the service activation response message to the EP, the method further includes: updating status information of each EP activation service that is saved on the DSC.

2. On the EP:

The communication request message sent to the DSC is a service activation request message, and the message further carries the service identification information;

The communication response message received by the receiving DSC is a service activation response message.

3. On the core network side:

In an implementation, after returning the service authorization response message to the DSC, the method further includes: recording a cluster-activated service type managed by the DSC.

In this embodiment, since the information of the terminal itself is visible to the core network, and the DSC can provide the status information of the EP type terminal. The core network is notified by the information and the activation service information, and the core network can perform charging according to the presence status of the EP terminal and whether the service status is activated.

The following is an example to illustrate.

FIG. 9 is a schematic diagram of a terminal EP trigger service activation implementation process, which can be as follows:

Step 901: The terminal initiates a service activation request when the new service needs to be activated, and carries the service identification information or the terminal type information by using the service activation request. For example, the terminal is a camera device that requests a real-time video return service; and, for example, the terminal is a sensor that requests a real-time backhaul service for the data samples collected by the sensor.

Step 902: According to the received service identification information and the terminal type information, if the DSC pre-stores the terminal subscription service list, the DSC first determines whether the terminal has the right to activate the service type identified by the service identification information. In addition, the DSC determines whether it has been authorized by the core network to provide corresponding services (such as real-time video backhaul) to members within the cluster (intra-group). If it has been authorized, step 904 is directly performed, otherwise step 903 is performed.

Step 903: If the DSC is not authorized by the core network to provide corresponding services (such as real-time video backhaul) to members within the cluster (intra-group). Then the DSC initiates a cluster (group) service authorization update request process to the core network. The core network will indicate if the DSC can provide new service types within the cluster. The core network records the cluster-activated service type managed by the DSC. The DSC will update its own locally stored cluster (group) authorized service list information.

Step 904: If the DSC is authorized by the core network to provide the corresponding service type (for example, real-time video backhaul), the DSC sends a service activation response message to the terminal, and may carry the terminal temporary identification information in the service activation response message for the terminal to receive.

Step 905: After the service is activated, the terminal sends a service activation complete message to the DSC, and carries the terminal temporary identifier.

Step 906: The DSC updates the state information of the terminal activation service in the locally saved terminal context.

Step 907: The DSC sends a terminal status update message to the core network, where the terminal fixed identifier and the terminal activation service identifier are carried, and the core network saves the terminal activation service information.

Embodiment 5

This embodiment is used to describe the deactivation implementation initiated by the MTC terminal. In this process, the DSC, the EP, and the core network are as follows:

1. On the DSC:

The communication request message received on the DSC is a service deactivation request message of the EP, and the message further carries service identification information; the communication processing message sent to the core network is a cluster service authorization update message; and the communication response message returned to the EP It is a business deactivation message.

In an implementation, after returning the service deactivation message to the EP, the method further includes: updating status information of each EP activation service that is saved on the DSC.

2. On the EP:

The communication request message sent to the DSC is a service deactivation request message, and the message further carries the service identification information; the communication response message returned by the receiving DSC is a service deactivation message.

In the implementation, after receiving the service deactivation message returned by the DSC, the method further includes:

Send a service deactivation completion message to the DSC.

3. On the core network side:

The status information of the EP is updated according to the status update message of the EP.

The following is an example to illustrate.

FIG. 10 is a schematic diagram of an implementation process of deactivation of an MTC class terminal initiated service, as follows:

Step 1001: After the terminal decides to deactivate the service, the terminal sends a service deactivation request to the DSC, and may carry the service identification information or the terminal type information. In addition, the service deactivation request may also carry terminal temporary identification information to help the DSC identify the terminal.

Step 1002: The DSC determines the service type to be activated by the terminal according to the service identification information or the terminal type information, and updates the terminal activation service type information saved in the terminal context.

Step 1003: The DSC sends a service deactivation command to the terminal, where the temporary identification information of the terminal may be carried.

Step 1004: The terminal sends a service activation complete message to the DSC, where the terminal temporary identification information may be carried.

Step 1005: The DSC determines whether the authorized service list needs to be updated. For example, if the video real-time backhaul service is included in the DSC authorization list, and the terminal in the cluster managed by the DSC does not activate the service, the DSC may initiate a cluster (group) service authorization update process to the core network to perform the DSC authorization service list. Update.

Step 1006: After the DSC determines to update the authorized service list information, the DSC initiates a cluster (group) service authorization update process to the core network.

Step 1007: The DSC sends a terminal status update message to the core network, where the terminal carries the terminal fixed identifier and deactivates the service identifier, and the core network updates the terminal activation service information saved by itself.

Embodiment 6

This embodiment is used to describe the implementation of service deactivation for clusters triggered by the core network. In this process, the DSC, the EP, and the core network are as follows:

1. On the DSC: receiving the cluster service authorization update message sent by the core network; determining the EP according to the cluster service authorization update message, the service activated on the EP is an unauthorized service; and sending a service deactivation message to the EP.

2. On the EP: Receive the service deactivation message sent by the DSC.

3. On the core network side: determine the service authorization execution status of the cluster managed by the DSC; send a cluster service authorization update message to the DSC according to the execution status.

The following is an example to illustrate.

FIG. 11 is a schematic diagram of a service deactivation implementation process triggered by a core network for a cluster, as follows:

Step 1101: The core network may initiate the case that the core network fails to expire or invalidate part or all of the service authorizations of the specific DSC (for example, when the time-based service authorization occurs, or the user account corresponding to the DSC is in arrears) Cluster (group) business authorization update process.

Step 1102: The DSC locally saves the updated cluster (group) service authorization information.

Step 1103: The DSC determines whether a terminal in the cluster (group) activates an unauthorized service. If there is an unauthorized activation service for the terminal that is still active, the DSC will trigger a service deactivation process for the particular terminal.

Step 1104: The DSC sends a service deactivation command to the terminal. If the terminal activates multiple services at the same time, the service deactivation command may carry the deactivated service identification information. In addition, the service deactivation command may carry the terminal temporary identifier for the terminal to determine whether the message is for itself.

Step 1105: After the service is deactivated, the terminal sends a service deactivation completion message to the DSC, and the service deactivation completion message carries the terminal temporary identification information.

Step 1106: After receiving the service deactivation completion message, the DSC updates the activated service information in the locally saved terminal context.

Step 1107: If the status of the service activated by the terminal changes (for example, is deactivated), the DSC sends a terminal status update message to the core network, where the terminal status update message carries the terminal fixed identifier and the deactivated service identifier.

Example 7

This embodiment is used to describe the implementation of the service disablement for the terminal triggered by the core network. In this process, the DSC, the EP, and the core network are as follows:

1. On the DSC: receiving a service disable indication message sent by the core network, where the message carries an EP identifier and a disabled service identifier; the EP is determined according to the identifier of the EP and the disabled service identifier; and the EP is determined according to the disabled service identifier. Send a service deactivation message for this service.

2. On the EP: Receive the service deactivation message sent by the DSC.

3. On the core network side: sending a service disabling indication message to the DSC, the message carrying the EP identifier and the disabled service identifier; receiving the service disabling completion message sent by the DSC, the message carrying the EP identifier and the disabled service Identification; update the status information of the EP according to the identifier of the EP and the disabled service identifier.

In this embodiment, the core network finds that the terminal subscription service is invalid (for example, the user subscription service time is one week), or the terminal activated service is inconsistent with the subscription service (for example, the terminal subscribes to the sensor data collection service, and the actual activation is video. Data collection service), the core network can trigger the service disabling process for the terminal.

The following is an example to illustrate.

FIG. 12 is a schematic diagram of a service execution disabling process for a terminal triggered by a core network, as follows:

Step 1201: In the case that the subscription of the specific service by the terminal is invalid, or the service activated by the terminal is inconsistent with the subscription activation service, the core network triggers a service disabling process for the terminal. The core network is based on the terminal status information saved by itself. The DSC of the terminal service sends a service disable indication message to the target DSC, where the terminal fixed identifier and the disabled service identifier and the service list information subscribed by the terminal are carried.

Step 1202: The DSC locally saves the terminal subscription service list information and triggers a deactivation process for the disabled service.

Step 1203: The DSC sends a service deactivation command to the terminal, where the service deactivation command carries the identification information of the deactivation service, and may carry the temporary identification information of the terminal.

Step 1204: After completing the service deactivation operation, the terminal sends a service deactivation completion message to the DSC, where the temporary identification information of the terminal may be carried.

Step 1205: The DSC sends a service disable complete message to the core network, where the terminal carries the fixed identifier information. The core network saves the updated terminal activation service information.

Step 1206: The DSC determines whether the authorized service list needs to be updated. For example, if the DSC authorization list includes (video real-time backhaul service) and the terminal managed by the DSC does not activate the terminal of the service, the DSC may initiate a cluster (group) service authorization update process to the core network, and authorize the service to the DSC. The list is updated.

Step 1207: After the DSC determines to update the authorized service list information, the DSC initiates a cluster (group) service authorization update process to the core network.

Based on the same inventive concept, the following communication device is also provided in the embodiment of the present invention. Since the principle of the communication device solving the problem is similar to the communication method, the implementation of the communication device can refer to the implementation of the method, and the repeated description is not repeated.

FIG. 13 is a schematic structural diagram of a communication device on a DSC, specifically including:

The terminal information receiving module 1301 is configured to receive, by the DSC, a communication request message of the EP, where the communication request message carries the identifier of the EP;

The core network information sending module 1302 is configured to send, by the core network, a communication processing message of the EP, where the communication processing message carries an identifier of the EP;

The terminal information sending module 1303 is configured to return a communication response message to the EP.

In an implementation, the terminal information receiving module is further configured to: when the EP accesses the network, receive an attach request message of the EP on the DSC, where the attach request message further carries the identity verification information of the EP;

The terminal information sending module is further configured to: after returning the identity verification through the response message in the core network, return an attach response message to the EP, and allocate a temporary identifier to the EP.

In an implementation, the terminal information sending module is further configured to: when the core network returns an identity verification response message and return the core network verification information, send the core network verification information to the EP, where the core network verification information is used by the EP to access the network. Perform legality verification.

In the implementation, the terminal information sending module is further configured to broadcast the attached information, where the attached information carries the access book Information required by DSC;

In the implementation, the DSC information update module 1304 is configured to update the status information of each EP accessed on the DSC after the temporary identifier is allocated to the EP and the attachment response message is returned.

In the implementation, the core network information sending module is further configured to: after updating the terminal status information of the access saved on the DSC, send the updated status information of each EP to the core network.

In the implementation, the terminal information receiving module is further configured to receive the detachment request message of the EP on the DSC, where the detachment request message further carries the temporary identifier of the EP;

The terminal information sending module is further configured to return a detachment response message to the EP.

In an implementation, the terminal information receiving module is further configured to receive, on the DSC, a status update request message periodically sent by the EP, where the message further carries a temporary identifier of the EP;

The terminal information sending module is further configured to return a status update response message to the EP.

In an implementation, the DSC information update module is further configured to reset a timer for updating the status information of the EP according to the temporary identifier of the EP.

In an implementation, the terminal information receiving module is further configured to receive a service activation request message on the DSC, where the service activation request message further carries the service identification information;

The terminal information sending module is further configured to: when the DSC is authorized to provide the service corresponding to the service identifier to the EP in the cluster, return a service activation response message to the EP;

The terminal information sending module is further configured to return a service activation response message to the EP after being authorized.

In an implementation, the DSC information update module is further configured to: after returning the service activation response message to the EP, update the status information of each EP activated service that is saved on the DSC.

In the implementation, it may further include:

The core network information receiving module 1305 is configured to receive a cluster service authorization update message sent by the core network.

The terminal information sending module is further configured to: after determining the EP according to the cluster service authorization update message, send a service deactivation message to the EP, where the activated service on the EP is an unauthorized service.

In the implementation, it may further include:

The core network information receiving module is configured to receive a service disable indication message sent by the core network, where the message carries an identifier of the EP and a disabled service identifier;

The terminal information sending module is further configured to: after determining the EP according to the identifier of the EP and the disabled service identifier, send a service deactivation message for the service to the EP according to the disabled service identifier.

In an implementation, the terminal information receiving module is further configured to receive, by the DSC, a service deactivation request message of the EP, where the message further carries the service identification information;

In an implementation, the DSC information update module may be further configured to: after returning the service deactivation message to the EP, update the status information of each EP activated service that is saved on the DSC.

In an implementation, the DSC information update module may be further configured to: after returning the service activation response message to the EP, update status information of each EP activated service that is saved on the DSC.

FIG. 14 is a schematic structural diagram of a communication device on an EP, specifically including:

The DSC information sending module 1401 is configured to send a communication request message to the DSC, where the communication request message carries an identifier of the EP;

The DSC information receiving module 1402 is configured to receive a communication response message returned by the DSC.

In an implementation, the DSC information sending module is further configured to: when the EP accesses the network, send an attach request message to the DSC, where the attach request message further carries the identity verification information of the EP;

The DSC information receiving module is further configured to receive the DSC return attachment response message and the temporary identifier of the DSC allocation.

In an implementation, the DSC information receiving module is further configured to receive the attached information of the DSC broadcast, where the attached information carries information required to access the DSC.

The DSC information sending module is further configured to send a communication request message to the DSC, where the information carried in the communication request message is information required for accessing the DSC required in the broadcast attached information.

In an implementation, the DSC information sending module may be further configured to: when receiving the broadcast attachment information sent by the multiple DSCs, determine the DSC to be accessed according to the access required information of each DSC and the access requirement of the EP; A communication request message is sent to the DSC to be accessed.

In an implementation, the DSC information sending module may be further configured to send an attach complete message to the DSC after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC.

In an implementation, the DSC information sending module may be further configured to: when the core network authentication information is carried in the attach response message, perform legality verification on the accessed network according to the core network verification information; and send an attach complete message after the verification is passed. .

In an implementation, the DSC information sending module is further configured to send a detach request message to the DSC, where the attach request message further carries a temporary identifier of the EP;

The DSC information receiving module is further configured to receive a detach response message returned by the DSC.

In an implementation, the DSC information sending module is further configured to periodically send a status update request message to the DSC, where The status update request message also carries the temporary identifier of the EP;

The DSC information receiving module is further configured to receive a DSC return status update response message.

In an implementation, the DSC information sending module is further configured to send a service activation request message to the DSC, where the service activation request message further carries the service identification information;

The DSC information receiving module is further configured to receive a service activation response message returned by the DSC.

In an implementation, the DSC information receiving module may be further configured to receive a service deactivation message sent by the DSC.

In an implementation, the DSC information sending module is further configured to send a service deactivation request message to the DSC, where the service deactivation request message further carries the service identification information;

In an implementation, the DSC information sending module is further configured to send a service deactivation completion message to the DSC after receiving the service deactivation message returned by the DSC.

FIG. 15 is a schematic structural diagram of a communication device on a core network, specifically including:

The information receiving module 1501 is configured to receive a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP;

The information sending module 1502 is configured to return a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.

In an implementation, the information receiving module is further configured to receive an identity verification request message of the EP sent by the DSC to the core network, where the message further carries the identity verification information of the EP;

The information sending module is further configured to return an identity verification through response message to the DSC after the EP passes the identity verification according to the identifier and/or identity verification information of the EP and the stored subscription information of the EP.

In an implementation, the information sending module may be further configured to: when returning the identity verification through the response message to the DSC, send the core network verification information to the DSC, where the core network verification information is used by the EP to verify the validity of the accessed network.

In the implementation, it may further include:

The core network information update module 1503 is configured to store the presence status information of the EP and the DSC information serving the EP after returning the identity verification response message to the DSC.

In an implementation, the information receiving module is further configured to receive status information of each EP sent by the DSC;

The core network information update module is further configured to update status information of each EP according to the status information of each EP.

In an implementation, the information receiving module is further configured to receive a status update message of the EP sent by the DSC to the core network;

The core network information update module is further configured to update the status information of the EP according to the status information of the EP.

In an implementation, the information receiving module is further configured to receive a terminal status update request message of the EP sent by the DSC to the core network, where the message carries an identifier of the EP;

The core network information update module is further configured to update the status information of the EP according to the terminal status update request message and the identifier of the EP.

In an implementation, the information receiving module is further configured to receive a service authorization update request message sent by the DSC to the core network;

The information sending module is further configured to: when determining the service authorization for the cluster managed by the DSC, return a service authorization response message to the DSC, where the service authorization response message is used to indicate a service type that the DSC provides to the EP in the cluster.

In the implementation, the core network information update module may be further configured to record the cluster activated service type managed by the DSC after returning the service authorization response message to the DSC.

In an implementation, the information sending module may be further configured to determine a service authorization execution status of the cluster managed by the DSC; and send a cluster service authorization update message to the DSC according to the execution status.

In an implementation, the information sending module is further configured to send a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier;

The information receiving module is further configured to receive a service disable complete message sent by the DSC, where the message carries an identifier of the EP and a disabled service identifier;

For convenience of description, the various parts of the above described devices are described in terms of functions divided into various modules or units. Of course, the functions of the various modules or units may be implemented in one or more software or hardware in the practice of the invention.

When the technical solution provided by the embodiment of the present invention is implemented, it can be implemented as follows.

Figure 16 is a schematic diagram of the DSC structure, and the DSC includes:

The processor 1600 is configured to read a program in the memory 1620 and the like, and cooperate with the transceiver to perform data processing.

The transceiver 1610 is configured to send and receive data under the control of the processor 1600, and performs the following processes:

Receiving a communication request message of the EP, where the communication request message carries an identifier of the EP; and sends a communication processing message of the EP to the core network, where the communication processing message carries an identifier of the EP; and returns a communication response message to the EP.

In the implementation, when the EP accesses the network, the communication request message received by the transceiver on the DSC is an attach request message of the EP, and the attach request message further carries the identity verification information of the EP; the device sent by the transceiver to the core network The communication processing message is an identity verification request message of the EP, and the identity verification request message further carries the identity verification information of the EP; the communication response message returned by the transceiver to the EP after the core network returns the identity verification response message. It is an attach response message and assigns a temporary identifier to the EP.

The transceiver sends core network authentication information to the EP, and the core network verification information is used by the EP to verify the validity of the accessed network.

In an implementation, the transceiver broadcasts the attached information, where the attached information carries information required to access the DSC;

The transceiver receives the communication request message of the EP on the DSC, and the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.

In the implementation, the processor allocates a temporary identifier to the EP through the transceiver, and returns an attachment response message to update the DSC. Status information of each EP that is stored on the access.

In the implementation, after the processor updates the terminal status information of the access stored in the DSC, the transceiver sends the updated status information of each EP to the core network.

In an implementation, the communication request message received by the transceiver on the DSC is an detach request message of the EP, and the detach request message further carries a temporary identifier of the EP; the communication processing message of the EP sent by the transceiver to the core network. Is the status update message of the EP; the communication response message returned by the transceiver to the EP is a detach response message.

In the implementation, the communication request message of the EP received by the transceiver on the DSC is a status update request message periodically sent by the EP, and the status update request message further carries the temporary identifier of the EP; the communication processing message sent by the transceiver to the core network. It is a terminal status update request message; the communication response message returned by the transceiver to the EP is a status update response message.

In the implementation, the processor resets the timer for updating the status information of the EP according to the temporary identifier of the EP.

In the implementation, the communication request message received by the transceiver on the DSC is a service activation request message, and the service activation request message further carries the service identification information;

When the DSC is authorized to provide the service corresponding to the service identifier to the intra-cluster EP, the communication response message returned to the EP is a service activation response message; the transceiver is not authorized to provide the service corresponding to the service identifier to the EP in the cluster. The communication processing message sent to the core network is a service authorization update request message. After being authorized, the communication response message returned to the EP is a service activation response message.

In the implementation, after the transceiver returns a service activation response message to the EP, the processor updates the status information of each EP activated service that is saved on the DSC.

The implementation may further include: the transceiver receives the cluster service authorization update message sent by the core network; the processor determines the EP according to the cluster service authorization update message, and the activated service on the EP is an unauthorized service; the transceiver sends the EP to the EP Send a service to activate the message.

The implementation may further include: the transceiver receiving the service disable indication message sent by the core network, where the message carries the identifier of the EP and the disabled service identifier; the processor determines the EP according to the identifier of the EP and the disabled service identifier; the transceiver A service deactivation message for the service is sent to the EP according to the disabled service identifier.

In the implementation, the communication request message received by the transceiver on the DSC is the service deactivation request message of the EP, and the message further carries the service identification information; the communication processing message sent by the transceiver to the core network is a cluster service authorization update message; The communication response message returned by the transceiver to the EP is a service deactivation message.

In an implementation, after the transceiver returns the service deactivation message to the EP, the method may further include: the processor updating the status information of each EP activated service that is saved on the DSC.

In an implementation, after the transceiver returns the service activation response message to the EP, the method may further include: the processor updating the status information of the accessed EP activation services saved on the DSC.

In FIG. 16, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1600 and various circuits of memory represented by memory 1620. Bus architecture Various other circuits, such as peripherals, voltage regulators, power management circuits, and the like, can also be linked together, as is well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver 1610 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor 1600 is responsible for managing the bus architecture and general processing, and the memory 1620 can store data used by the processor 1600 in performing operations.

Figure 17 is a schematic diagram of the structure of the EP. As shown in the figure, the EP includes:

The processor 1700 is configured to read a program in the memory 1720 and the like, and perform data processing in cooperation with the transceiver. The transceiver 1710 is configured to receive and transmit data under the control of the processor 1700, and execute the following process: sending a communication request message to the DSC. The communication request message carries an identifier of the EP; and receives a communication response message returned by the DSC.

In the implementation, when the EP accesses the network, the communication request message sent by the transceiver to the DSC is an attach request message, and the message further carries the identity verification information of the EP; the communication response message returned by the transceiver to receive the DSC is an attach response message. , and the temporary identifier assigned by the DSC.

In an implementation, the method further includes: the transceiver receiving the broadcast attachment information sent by the DSC, where the attachment information carries information required for accessing the DSC.

A communication request message sent by the transceiver to the DSC, where the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.

In an implementation, when the transceiver receives the attachment information of the multiple DSC broadcasts, the processor determines the DSC to be accessed according to the access required information of each DSC and the access requirement of the EP; the transceiver sends a communication request message to the DSC. Is to send a communication request message to the DSC to be accessed.

In an implementation, after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC, the transceiver may further include: sending an attach complete message to the DSC.

In an implementation, when the attaching response message carries the core network authentication information, before the transceiver sends the attach complete message to the DSC, the transceiver may further include:

The processor performs legality verification on the accessed network according to the core network verification information;

The transceiver sends an attach complete message to the DSC, which is sent after the verification is passed.

In the implementation, the communication request message sent by the transceiver to the DSC is a detach request message, and the message further carries a temporary identifier of the EP;

The communication response message returned by the transceiver to receive the DSC is a detach response message.

In the implementation, the communication request message sent by the transceiver to the DSC is a periodically sent status update request message, and the message further carries a temporary identifier of the EP;

The communication response message returned by the transceiver to receive the DSC is a status update response message.

In the implementation, the communication request message sent by the transceiver to the DSC is a service activation request message, and the message further carries the service identification information;

The communication response message returned by the transceiver to receive the DSC is a service activation response message.

In the implementation, it may further include:

The transceiver receives the service deactivation message sent by the DSC.

In an implementation, the communication request message sent by the transceiver to the DSC is a service deactivation request message, where the message further carries the service identification information;

The communication response message returned by the transceiver to receive the DSC is a service deactivation message.

In an implementation, after receiving the service deactivation message returned by the DSC, the transceiver may further include:

Send a service deactivation completion message to the DSC.

Here, in FIG. 17, the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 1700 and various circuits of memory represented by memory 1720. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. Transceiver 1710 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium. For different user equipments, the user interface 1730 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1700 is responsible for managing the bus architecture and general processing, and the memory 1720 can store data used by the processor 1700 in performing operations.

18 is a schematic structural diagram of a communication device on a core network, specifically including: a processor 1801, configured to read a program in the memory, and perform data processing with the transceiver; and a transceiver 1802, configured to receive and transmit data under the control of the processor. The following process is performed: receiving a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP; and returns a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.

In an implementation, the communication processing message sent by the DSC to the core network is an authentication request message of the EP, where the message further carries the identity verification information of the EP; the processor according to the identifier of the EP and/or the identity verification information, and the storage After the EP is authenticated, the communication processing response message returned by the transceiver to the DSC is an authentication verification response message;

or,

The communication processing message sent by the DSC to the core network is a service authorization update request message; when the processor determines to perform the service authorization for the cluster managed by the DSC, the communication processing response message returned by the transceiver to the DSC is a service authorization response message, The service authorization response message is used to indicate the type of service that the DSC provides to the EP in the cluster.

In an implementation, the transceiver, when returning the identity verification response message to the DSC, further includes: sending core network verification information to the DSC, where the core network verification information is used by the EP to verify the validity of the accessed network.

In an implementation, the method further includes: the transceiver receives status information of each EP sent by the DSC; and the processor is configured according to the The status information of the EP updates the status information of each EP;

or,

The method further includes: the transceiver receiving the status update message of the EP sent by the DSC to the core network; the processor updating the status information of the EP according to the status information of the EP;

or,

The method further includes: the transceiver receives the terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries the identifier of the EP; and the processor updates the request message according to the EP and the EP Identifying status information for updating the EP;

or,

The method further includes: determining, by the processor, a service authorization execution status of the cluster managed by the DSC; and sending a cluster service authorization update message to the DSC according to the execution status;

or,

The method further includes: the transceiver sends a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier; the transceiver receives the service disable complete message sent by the DSC, where the service disable message carries the EP The identifier and the disabled service identifier; the processor updates the status information of the EP according to the identifier of the EP and the disabled service identifier.

Wherein, in FIG. 18, the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by the processor and various circuits of the memory represented by memory 1803. The bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein. The bus interface provides an interface. The transceiver can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium. The processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.

In summary, in the embodiment of the present invention, a scheme for locally managing a DSC access terminal is provided. The method includes assigning a temporary identifier to the terminal, saving a state context of the terminal, a security context, and controlling the terminal activation service process. The core network assists the DSC in authenticating the identity of the terminal and controlling the terminal activation service according to the terminal subscription. The DSC notifies the network status information of the terminal and the terminal activation service information to the core network through the terminal status update mode, and saves the network status information of the terminal to the terminal, activates the service information, and saves the service DSC information. The service-disabled process for the specific terminal triggered by the core network includes a method for the core network to determine the target DSC, and a method for instructing the DSC to disable the service information, and the DSC saves the service disable policy received from the core network and performs it locally.

Through the above solution, the control function of the traditional cellular network to the terminal is decentralized to the local access network, which not only greatly reduces the burden on the storage and signaling processing of the core network by the access device, but also localizes the control function, which greatly shortens the control. The delay caused by the surface signaling process. In addition, due to the decoupling of software and hardware between the DSC function and the authorized device, the dynamic network formed between the DSC and the access device has the characteristics of flexibility.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

A communication method, comprising:

Receiving, by the distributed service center DSC, a communication request message of the end node EP, where the communication request message carries an identifier of the EP;

Sending, by the core network, a communication processing message of the EP, where the communication processing message carries an identifier of the EP;

A communication response message is returned to the EP.
The method of claim 1 wherein

When the EP accesses the network, the communication request message received on the DSC is an attach request message of the EP, and the attach request message further carries the identity verification information of the EP;

The communication processing message sent to the core network is an identity verification request message of the EP, and the identity verification request message further carries the identity verification information of the EP;

After the core network returns the identity verification response message, the communication response message returned to the EP is an attach response message, and a temporary identifier is assigned to the EP;

or,

The communication request message received on the DSC is a detach request message of the EP, and the detach request message further carries a temporary identifier of the EP;

The communication processing message of the EP sent to the core network is a status update message of the EP;

The communication response message returned to the EP is a detach response message;

or,

The communication request message of the EP received on the DSC is a status update request message periodically sent by the EP, and the status update request message further carries a temporary identifier of the EP;

The communication processing message sent to the core network is a terminal status update request message;

The communication response message returned to the EP is a status update response message;

or,

The communication request message received on the DSC is a service activation request message, and the service activation request message further carries service identification information;

When the DSC is authorized to provide the service corresponding to the service identification information to the intra-cluster EP, the communication response message returned to the EP is a service activation response message; when the DSC is not authorized to provide the service corresponding to the service identifier to the intra-cluster EP, The communication processing message sent by the core network is a service authorization update request message, and after being authorized, the communication response message returned to the EP is a service activation response message;

or,

The communication request message received on the DSC is a service deactivation request message of the EP, and the service deactivation request message further carries the service identification information;

The communication processing message sent to the core network is a cluster service authorization update message;

The communication response message returned to the EP is a service deactivation message.
The method according to claim 2, wherein when the core network returns the identity verification through the response message and returns the core network verification information, the method further includes:

Sending core network authentication information to the EP, where the core network verification information is used by the EP to verify the validity of the accessed network.
The method of claim 2 or 3, further comprising:

Broadcasting the attached information, where the attached information carries information required to access the DSC;

The communication request message of the EP is received on the DSC, and the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.
The method of claim 2, further comprising:

A timer for updating the status information of the EP is reset according to the temporary identifier of the EP.
The method of claim 1 wherein

Further includes:

Receiving a cluster service authorization update message sent by the core network;

Determining an EP according to the cluster service authorization update message, and the service activated on the EP is an unauthorized service;

Sending a service deactivation message to the EP;

or,

Further includes:

Receiving a service disable indication message sent by the core network, where the message carries an identifier of the EP and a disabled service identifier;

Determining the EP according to the identity of the EP and the disabled service identifier;

A service deactivation message for the service is sent to the determined EP according to the disabled service identifier.
A communication method, comprising:

Sending a communication request message to the DSC, where the communication request message carries an identifier of the EP;

Receive the communication response message returned by the DSC.
The method of claim 7 wherein:

When the EP accesses the network, the communication request message sent to the DSC is an attach request message, and the attach request message further carries the identity verification information of the EP;

The communication response message received by the receiving DSC is an attach response message and a temporary identifier assigned by the DSC;

or,

The communication request message sent to the DSC is a detach request message, and the detach request message further carries a temporary identifier of the EP;

Receiving the communication response message returned by the DSC is a detachment response message;

or,

The communication request message sent to the DSC is a periodically sent status update request message, and the status update request message further carries a temporary identifier of the EP;

Receiving the communication response message returned by the DSC is a status update response message;

or,

The communication request message sent to the DSC is a service activation request message, and the service activation request message further carries service identification information;

Receiving the communication response message returned by the DSC is a service activation response message;

or,

The communication request message sent to the DSC is a service deactivation request message, and the service deactivation request message further carries service identification information;

The communication response message received by the receiving DSC is a service deactivation message.
The method according to claim 8, wherein before the communication request message sent to the DSC is an attach request message, the method further includes:

Receiving the attachment information of the DSC broadcast, where the attachment information carries information required to access the DSC;

A communication request message sent to the DSC, the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.
The method according to claim 9, wherein when receiving the broadcast attachment information sent by the plurality of DSCs, determining the DSC to be accessed according to the access required information of each DSC and the access requirement of the EP;

Sending a communication request message to the DSC is to send a communication request message to the DSC to be accessed.
The method according to claim 8, wherein before the attaching completion message is sent to the DSC, the method further includes:

Performing legality verification on the accessed network according to the core network verification information;

Sending an attach complete message to the DSC is sent after the verification is passed.
The method of claim 7 further comprising:

Receive the service deactivation message sent by the DSC.
A communication method, comprising:

Receiving a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP;

Returning a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.
The method of claim 13 wherein:

The communication processing message sent by the DSC to the core network is an authentication request message of the EP, and the identity verification request message further carries the identity verification information of the EP;

The communication processing response message returned to the DSC after the EP is authenticated according to the identifier and/or the authentication information of the EP and the stored subscription information of the EP is an authentication verification response message;

or,

The communication processing message sent by the DSC to the core network is a service authorization update request message;

When determining the service authorization for the cluster managed by the DSC, the communication processing response message returned to the DSC is a service authorization response message, where the service authorization response message is used to indicate the service type that the DSC provides to the EP in the cluster.
The method according to claim 14, wherein when the authentication response message is returned to the DSC, the method further comprises:

The core network verification information is sent to the DSC, where the core network verification information is used by the EP to verify the validity of the accessed network.
The method of claim 13 wherein:

Further includes:

Receiving status information of each EP sent by the DSC;

Updating status information of each EP according to status information of each EP;

or,

Further includes:

Receiving a status update message of the EP sent by the DSC to the core network;

Updating status information of the EP according to the status update message of the EP;

or,

Further includes:

Receiving a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP;

Updating the status information of the EP according to the terminal status update request message of the EP and the identifier of the EP;

or,

Further includes:

Determining the service authorization execution status of the cluster managed by the DSC;

Sending a cluster service authorization update message to the DSC according to the execution status;

or,

Further includes:

Sending a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier;

Receiving a service disabling completion message sent by the DSC, where the service completion completion message carries an EP identifier and a disabled service identifier;

The status information of the EP is updated according to the identity of the EP and the disabled service identifier.
A communication device, comprising:

a terminal information receiving module, configured to receive, by the DSC, a communication request message of the EP, where the communication request message carries an identifier of the EP;

a core network information sending module, configured to send, to the core network, a communication processing message of the EP, where the communication processing message carries an identifier of the EP;

The terminal information sending module is configured to return a communication response message to the EP.
The device according to claim 17, wherein

The terminal information receiving module is further configured to: when the EP accesses the network, receive an attach request message of the EP on the DSC, where the attach request message further carries the identity verification information of the EP;

The core network information sending module is further configured to send an identity verification request message of the EP to the core network, where the identity verification request message further carries the identity verification information of the EP;

The terminal information sending module is further configured to: after returning the identity verification through the response message in the core network, return an attach response message to the EP, and allocate a temporary identifier to the EP;

or,

The terminal information receiving module is further configured to receive the detachment request message of the EP on the DSC, where the detachment request message further carries the temporary identifier of the EP;

The core network information sending module is further configured to send a status update message of the EP to the core network;

The terminal information sending module is further configured to return a detachment response message to the EP;

or,

The terminal information receiving module is further configured to receive, on the DSC, a status update request message periodically sent by the EP, where the status update request message further carries a temporary identifier of the EP;

The core network information sending module is further configured to send a terminal status update request message to the core network;

The terminal information sending module is further configured to return a status update response message to the EP;

or,

The terminal information receiving module is further configured to receive a service activation request message on the DSC, where the service activation request message further carries the service identification information;

The terminal information sending module is further configured to: when the DSC is authorized to provide the service corresponding to the service identification information to the intra-cluster EP, return a service activation response message to the EP;

Or the core network information sending module is further configured to: when the DSC is not authorized to provide the service corresponding to the service identifier to the intra-cluster EP, send a service authorization update request message to the core network;

The terminal information sending module is further configured to: after obtaining the authorization, return a service activation response message to the EP;

Or,

a core network information receiving module, configured to receive a cluster service authorization update message sent by the core network;

The terminal information sending module is further configured to: after determining the EP according to the cluster service authorization update message, send a service deactivation message to the EP, where the activated service on the EP is an unauthorized service;

or,

a core network information receiving module, configured to receive a service disable indication message sent by the core network, where the service disable indication message carries an identifier of the EP and a disabled service identifier;

The terminal information sending module is further configured to: after determining the EP according to the identifier of the EP and the disabled service identifier, send a service deactivation message for the service to the EP according to the disabled service identifier;

or,

The terminal information receiving module is further configured to receive a service deactivation request message of the EP on the DSC, where the service deactivation request message further carries the service identification information;

The core network information sending module is further configured to send a cluster service authorization update message to the core network;

The terminal information sending module is further configured to return a service deactivation message to the EP.
The device according to claim 18, wherein the terminal information sending module is further configured to: when the core network returns an identity verification response message and return the core network verification information, send the core network verification information to the EP, where the core network verification The information is used by the EP to verify the validity of the accessed network.
The device according to claim 18 or 19, wherein the terminal information sending module is further configured to broadcast the attached information, where the attached information carries information required for accessing the DSC;

The terminal information receiving module is further configured to receive the communication request message of the EP on the DSC, where the information carried in the communication request message is information required to access the DSC required in the broadcast attachment information.
The device according to any one of claims 17 to 20, wherein the DSC information updating module is configured to update the status of each EP accessed on the DSC after assigning the temporary identifier to the EP and returning the attach response message. information.
A communication device, comprising:

a DSC information sending module, configured to send a communication request message to the DSC, where the communication request message carries an identifier of the EP;

The DSC information receiving module is configured to receive a communication response message returned by the DSC.
The device according to claim 22, characterized in that

The DSC information sending module is further configured to: when the EP accesses the network, send an attach request message to the DSC, where the attach request message further carries the identity verification information of the EP;

The DSC information receiving module is further configured to receive a DSC return attachment response message, and a temporary identifier allocated by the DSC;

Or,

The DSC information receiving module is further configured to receive the attached information of the DSC broadcast, where the attached information carries information required to access the DSC;

The DSC information sending module is further configured to send a communication request message to the DSC, where the information carried in the communication request message is information required for accessing the DSC required in the broadcast attachment information;

or,

The DSC information sending module is further configured to send a detach request message to the DSC, where the message further carries a temporary identifier of the EP;

The DSC information receiving module is further configured to receive a detachment response message returned by the DSC;

or,

The DSC information sending module is further configured to periodically send a status update request message to the DSC, where the status update request message further carries a temporary identifier of the EP;

The DSC information receiving module is further configured to receive a DSC return status update response message;

or,

The DSC information sending module is further configured to send a service activation request message to the DSC, where the service activation request message further carries the service identification information;

The DSC information receiving module is further configured to receive a service activation response message returned by the DSC;

or,

The DSC information receiving module is further configured to receive a service deactivation message sent by the DSC;

or,

The DSC information sending module is further configured to send a service deactivation request message to the DSC, where the service deactivation request message further carries the service identification information;

The DSC information receiving module is further configured to receive a service deactivation message returned by the DSC.
The device according to claim 23, wherein the DSC information sending module is further configured to: when receiving the attachment information of the plurality of DSC broadcasts, determine the access required information according to each DSC, and the access requirement of the EP The DSC to be accessed; and sending a communication request message to the DSC to be accessed.
The device according to claim 23, wherein the DSC information sending module is further configured to: after receiving the attach response message returned by the DSC and the temporary identifier allocated by the DSC, sending an attach complete message to the DSC.
The device according to claim 25, wherein the DSC information sending module is further configured to perform legality verification on the accessed network according to the core network verification information when the core network authentication information is carried in the attach response message; The attach complete message is sent after the verification is passed.
A communication device, comprising:

An information receiving module, configured to receive a communication processing message sent by the DSC to the core network, where the communication processing message carries an identifier of the EP;

The information sending module is configured to return a communication processing response message to the DSC, where the communication processing response message carries the identifier of the EP.
The device according to claim 27, wherein

The information receiving module is further configured to receive an identity verification request message of the EP sent by the DSC to the core network, where the identity verification request message further carries the identity verification information of the EP;

The information sending module is further configured to: according to the identifier and/or the identity verification information of the EP, and the stored subscription information of the EP, after the EP passes the identity verification, return an identity verification through response message to the DSC;

or,

The information receiving module is further configured to receive status information of each EP sent by the DSC;

The core network information update module is further configured to update status information of each EP according to status information of each EP;

or,

The information receiving module is further configured to receive a status update message of the EP sent by the DSC to the core network;

The core network information update module is further configured to update status information of the EP according to the status update message of the EP;

or,

The information receiving module is further configured to receive a terminal status update request message of the EP sent by the DSC to the core network, where the terminal status update request message carries an identifier of the EP;

The core network information update module is further configured to update the status information of the EP according to the terminal status update request message of the EP and the identifier of the EP;

or,

The information receiving module is further configured to receive a service authorization update request message sent by the DSC to the core network;

The information sending module is further configured to: when determining the service authorization for the cluster managed by the DSC, return a service authorization response message to the DSC, where the service authorization response message is used to indicate a service type that the DSC provides to the EP in the cluster;

or,

The information sending module is further configured to determine a service authorization execution status of the cluster managed by the DSC, and send a cluster service authorization update message to the DSC according to the execution status;

or,

The information sending module is further configured to send a service disable indication message to the DSC, where the service disable indication message carries the identifier of the EP and the disabled service identifier;

The information receiving module is further configured to receive a service disable complete message sent by the DSC, where the service disable complete message carries the identifier of the EP and the disabled service identifier;

The core network information update module is further configured to update the status information of the EP according to the identifier of the EP and the disabled service identifier.
The apparatus according to claim 28, wherein the information transmitting module is further configured to be in the DSC Returning the authentication through the response message, the core network verification information is sent to the DSC, and the core network verification information is used for the EP to verify the validity of the accessed network.
The device according to claim 28, further comprising:

The core network information update module is configured to store the presence status information of the EP and the DSC information serving the EP after returning the identity verification response message to the DSC.