WO2014100977A1

WO2014100977A1 - Method for obtaining and sending cbc and/or cbe information and relevant device

Info

Publication number: WO2014100977A1
Application number: PCT/CN2012/087434
Authority: WO
Inventors: 张丽佳; 陈璟; 许怡娴; 应江威
Original assignee: 华为技术有限公司
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2014-07-03
Also published as: CN104041092B; CN104041092A

Abstract

A method for obtaining and sending CBC and/or CBE information, a user equipment and a network-side device. The method for obtaining CBC and/or CBE information comprises: a user equipment sends a request message for obtaining CBC and/or CBE information to a network-side device; and the user equipment receives CBC and/or CBE information which corresponds to the request message and is returned back from the network-side device. By adopting the solution provided in the embodiments of the present invention, a UE can obtain relevant CBC and/or CBE information when initially accessing a network or roaming to other operator networks, so as to establish a secure connection with a CBC and/or CBE, obtaining a PWS public key, and reducing the occurrence of a disaster.

Description

Method for acquiring and transmitting CBC and/or CBE information and related equipment

The present invention relates to the field of communications technologies, and in particular, to a method for acquiring and transmitting CBC and/or CBE information, a user equipment, and a network side device. Background technique

PWS (Public Warning System) is a public alarm system that alerts natural disasters or man-made accidents that may cause damage to human life and property. In the case of natural disasters such as floods, hurricanes, or man-made accidents, such as chemical gas leaks, explosion threats, and nuclear threats, PWS can be used as a complement to existing broadcast communication systems. The PWS service is provided to the user by the telecommunications carrier, and its content can be provided by a warning notification provider. When some emergency events occur, the alarm information supply department generates a warning message and signs the alarm message with the private key and sends it to the operator. The operator uses its own network to send an alarm message to the user equipment. After receiving the alarm message, the user equipment verifies the alarm message by using the public key obtained and saved locally. If the verification succeeds, the user equipment displays the alarm message to the user, so that the user takes emergency measures to respond to the emergency. Currently, there are two ways for a user equipment to obtain a public key. One is to obtain a public key through a non-access stratum message, and the other is to obtain a public key through an application layer message. The method for obtaining the public key by using the application layer message is as follows: When the user equipment (UE) finds that there is no correct public key, the UE requests a new public key, UE and BSF from the NAF (Network Application Function) entity. The Bootstrapping Server Function (bootstrap server function) and the NAF perform the GBA (General Bootstrapping Architecture) process. After the GBA process is completed, the application layer security is established between the UE and the NAF, and the application layer shared key is generated. Ks_NAF), the NAF uses the shared key (Ks-NAF) to securely protect the new public key and then delivers it to the UE, so that the UE obtains the new public key. The NAF may be a CBC (Cell Broadcast Center) or a CBE (Cell Broadcast Entity), and the UE may obtain a public key from the CBC or the CBE. When the NAF is CBC, since the different carrier networks operate their respective CBCs, ie UE When accessing different carrier networks, it is necessary to initiate a public key request to different NAFs and establish a security association. When the NAF is a CBE, the different carrier networks may be connected to different CBEs. That is, when the UE accesses different carrier networks, the public key request may be initiated to establish a security association with different NAFs. It can be seen that changes in the carrier network may lead to changes in the NAF.

When the business network either roams to another carrier network or NAF (CBC/CBE) information inside the carrier network is updated (for example, the carrier network adds a connection with a new CBE or CBC), the UE cannot obtain Information about the NAF (such as CBC or CBE) (such as the IP address of the CBC or CBE), resulting in the inability to establish a secure connection with the NAF to obtain the latest PWS public key.

Summary of the invention

In view of this, the embodiments of the present invention provide a method for acquiring and transmitting CBC and/or CBE information, a user equipment, and a network side device, to solve the problem that the UE existing in the prior art is initially attached to the carrier network or roamed to another When the NAF (CBC/CBE) information inside the carrier network or the carrier network is updated (for example, the carrier network is added to a new CBE or CBC connection), the information about the NAF cannot be obtained and the latest information cannot be obtained. Technical issues with the PWS public key.

In a first aspect, the embodiment of the present invention provides a method for acquiring CBC and/or CBE information, including: a user equipment sends a request message for acquiring a cell broadcast entity CBC and/or a cell broadcast center CBE information to a network side device; The CBC and/or CBE information corresponding to the request message returned by the network side device. In a first possible implementation manner of the first aspect, the request message is an attach request message, where the network side device is a mobility management entity MME in a long term evolution LTE system, or The GPRS service support node SGSN in the universal mobile communication system UMTS or the packet switched communication technology GPRS system, or the mobile switching center MSC in the global mobile communication system GSM, the user equipment receives the request message returned by the network side device Corresponding CBC and/or CBE information, including: the user equipment receiving the carried CBC and/or sent by the MME or the SGSN or the MSC

An attach accept message or a security mode command message of the CBE information, where the attach accept message or the security mode command message is a message generated by the network side device when the context of the user equipment is not detected; Obtain CBC and/or CBE information in the Attach Accept message or Security Mode Command message. In a second possible implementation manner of the first aspect, the request message is an attach request message, where the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or The MSC, before the user equipment sends the request message for acquiring the CBC and/or CBE information to the network side device, the method further includes: determining, by the user equipment, whether the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID is pre-stored; If yes, the user equipment sends a request message for acquiring CBC and/or CBE information to the network side device, specifically: the user equipment sends an attach request that carries an indication that the CBC and/or CBE information is not required to the MME or the SGSN or the MSC. If the message is not sent, the user equipment sends a request message for acquiring the CBC and/or CBE information to the network side device, where the user equipment sends the indication that the CBC and/or CBE information is required to be sent to the MME or the SGSN or the MSC. a request message; the user equipment receives the CBC and/or CBE information corresponding to the request message returned by the network side device, specifically: the user equipment receives the The network side returns the attach accept message or a security mode command message to obtain the CBC and / or CBE information. In a third possible implementation manner of the first aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is used. The request message is a tracking area update TAU message, and the request message is a routing area update RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is in the CS domain and the GSM system of the UMTS system. The location area is updated with the LAU request message, and the user equipment receives the CBC and/or CBE information corresponding to the request message returned by the network side device, where the user equipment receives the bearer and TAU sent by the MME or the SGSN or the MSC. a TAU or RAU or LAU accept message of the CBC and/or CBE information corresponding to the RAU or LAU; wherein the TAU or RAU or LAU accept message is when the MME or the SGSN or the MSC detects that the user equipment is a roaming user The generated message; the user equipment obtains CBC and/or CBE information from the TAU or RAU or LAU accept message. In a fourth possible implementation manner of the first aspect, the network side device is an MME in an LTE system or an SGSN in a UMTS or GPRS system or an MSC in a GSM system, where the request message is in the LTE system. For the TAU message, the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, the user equipment is Before the network side device sends the TAU or RAU or LAU request message for acquiring the CBC and/or CBE information, the method further includes: the user equipment determining whether the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID is pre-stored; And the user equipment sends a TAU or RAU or LAU request message for acquiring the CBC and/or CBE information to the network side device, where the user equipment sends the TAU that obtains the CBC and/or CBE information to the MME or the SGSN or the MSC. Or a RAU or LAU request message, wherein the TAU or RAU or LAU request message includes an indication to request acquisition of CBC and/or CBE information from the MME or SGSN or MSC. In a fifth possible implementation manner of the first aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, at the user equipment. If the test message sent by the MME, the SGSN, or the MSC is not verified, the user equipment sends a request message for acquiring the CBC and/or CBE information to the network side device, where the user equipment sends the CBC and/or the MME or the SGSN or the MSC. a TAU or RAU or LAU request message of the CBE information, the TAU or RAU or LAU request message including a CBC and/or CBE identifier corresponding to the test message, such that the MME, SGSN or MSC will refer to the CBC and/or The CBC and/or CBE information corresponding to the CBE identifier is carried in the TAU or RAU or LAU accept message. In a sixth possible implementation manner of the first aspect, the network side device is an MME in an LTE system or an SGSN in a UMTS or GPRS system or an MSC in a GSM, where the request message in the LTE system is a TAU message, in the PS domain and the GPRS system of the UMTS system, the request message is a RAU message, and in the CS domain and the GSM system of the UMTS system, the request message is a LAU request message, and the user equipment is to the network The side device sends a request message for acquiring CBC and/or CBE information, specifically: the user equipment periodically sends the identifier of the saved CBC and/or CBE information to the MME or the SGSN or the MSC according to a preset time interval, so that the MME or the SGSN Or the CBC corresponding to the identifier of the CBC and/or CBE information sent by the user equipment, if the identifier of the saved CBC and/or CBE information is different from the identifier of the CBC and/or CBE information sent by the user equipment. / or CBE information is carried in the TAU or RAU or LAU accept message sent to the user equipment. In a seventh possible implementation manner of the foregoing aspect, the receiving, by the user equipment, the CBC and/or CBE information corresponding to the request message that is returned by the network device, includes: the user equipment receiving the MME or the SGSN or the MSC Returned NAS signaling carrying CBC and/or CBE information for allocating an IP address, the NAS signaling is: LTE system The default evolved packet system EPS bearer context request message is activated, or the activated packet data protocol PDP context receive message in the UMTS or GPRS system. In an eighth possible implementation manner of the first aspect, the network side device is a first resolution server corresponding to the access network of the user equipment, and the user equipment sends the CBC and/or to the network side device. The request message of the CBE information includes: the user equipment acquires the IP address of the first resolution server according to the PLMN ID of the current access network; the user equipment sends the acquisition CBC and/or CBE to the first resolution server corresponding to the IP address. Request message for information. In a ninth possible implementation manner of the first aspect, the network side device is a globally unique second resolution server, and the IP address of the second resolution server is pre-stored on the user equipment, and the user equipment is Sending the request message for acquiring the CBC and/or CBE information to the network side device, including: the user equipment searching for the IP address of the second parsing server saved in advance; and sending, by the user equipment, the CBC and/or to the second parsing server corresponding to the IP address. or

A request message of the CBE information, where the request message carries the PLMN ID of the PLMN currently accessed by the user equipment. In a second aspect, the embodiment of the present invention further provides another method for acquiring CBC and/or CBE information, including: acquiring, by a user equipment, a public land mobile network PLMN identifier that is currently accessed; and acquiring, by the user equipment, the PLMN identifier. CBC and / or CBE information.

The embodiment of the present invention further provides a method for transmitting CBC and/or CBE information, including: detecting, by a resolution server corresponding to an access network of a user equipment, whether the user equipment first enters the network or the cell broadcast entity CBC and/or the cell broadcast center CBE information There is an update, and if so, the resolution server corresponding to the access network of the user equipment pushes CBC and/or CBE information to the user equipment. In a third aspect, the embodiment of the present invention further provides another method for sending CBC and/or CBE information, including: receiving, by a network side device, a request message for acquiring a cell broadcast entity CBC and/or a cell broadcast center CBE information sent by a user equipment; The network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment. In a first possible implementation manner of the third aspect, the request message is an attach request message, where the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS, or an MSC in a GSM Before the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, the method further includes:

The MME or the SGSN or the MSC detects whether the context of the user equipment exists, and if not, carries the CBC and/or CBE information in the attach accept message or the security mode command message; then the network side device sends the user equipment to the user equipment The CBC and/or CBE information corresponding to the request message is specifically: the MME or the SGSN or the MSC sends an attach request message or a security mode command message carrying the CBC and/or CBE information to the user equipment. In a second possible implementation manner of the third aspect, the request message is an attach request message, where the network side device is an MME in an LTE system, or a GPRS service support node SGSN in a UMTS or GPRS system, or The MSC in the GSM, the network side device receiving the request message for acquiring the CBC and/or CBE information sent by the user equipment, including: pre-storing the public land mobile network identifier of the attached network with the attached user equipment

In the case of the CBC and/or CBE information associated with the PLMN ID, the MME or the SGSN or the MSC receives an attach request message sent by the user equipment carrying an indication that the CBC and/or CBE information is not required; In the case of CBC and/or CBE information associated with the PLMN ID of the attached network, the MME or SGSN or MSC receives an attach request message sent by the user equipment carrying an indication requiring CBC and/or CBE information; The network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, where the MME or the SGSN or the MSC sends an attach and accept message carrying the CBC and/or CBE information to the user equipment. Message or security mode command message. In a third possible implementation manner of the third aspect, the network side device is an MME or

The SGSN or the MSC, the request message in the LTE system is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, in the CS domain and the GSM system of the UMTS system. The request message is a LAU request message, and before the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, the method further includes:

The MME or the SGSN or the MSC detects whether the user equipment is a roaming user according to the TAU or RAU or LAU request message, and if so, carries the CBC and/or CBE information corresponding to the TAU or RAU or LAU request message. The TAU or the RAU or the LAU accepts the message; the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically: sending the TAU carrying the CBC and/or CBE information to the user equipment. Or RAU or LAU accept the message. In a fourth possible implementation manner of the third aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, where the LTE system is in the LTE system. The request message is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is a LAU request message in a CS domain and a GSM system of the UMTS system. Receiving, by the network side device, a request message for acquiring CBC and/or CBE information sent by the user equipment, including: when the user equipment pre-stores CBC and/or CBE information associated with the PLMN ID of the attached network, The MME or SGSN or MSC receives a TAU or RAU or LAU request message sent by the user equipment carrying an indication that does not require CBC and/or CBE information; the CBC and/or the user equipment does not pre-store the PLMN ID associated with the attached network. In the case of CBE information, the MME or SGSN or MSC receives a TAU or RAU or LAU request message sent by the user equipment that requires an indication of CBC and/or CBE information, and carries the CBC and/or CBE information to the TAU or RAU. Or LAU request message. In a fifth possible implementation manner of the third aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, at the user equipment. If the MME or the SGSN or the test message sent by the MSC is not verified, the network side device receives the request message for acquiring the CBC and/or CBE information sent by the user equipment, and the MME or the SGSN or the MSC receives the acquisition sent by the user equipment. a request message of CBC and/or CBE information, the request message including a CBC and/or CBE identifier corresponding to the test message; the MME or SGSN or MSC identifying the CBC and/or CBE corresponding to the CBC and/or Or the CBE information is carried in the TAU or RAU or LAU accept message. In a sixth possible implementation manner of the third aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, the network The side device receives the request message for acquiring the CBC and/or CBE information sent by the user equipment, where the MME or the SGSN or the MSC receives the periodically sent CBC and/or CBE information by the user equipment according to the preset time interval. The network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically:

Whether the MME or the SGSN or the MSC detects whether the identifier of the saved CBC and/or CBE is different from the identifier of the CBC and/or CBE sent by the user equipment, and if yes, the saved CBC And/or the CBE information is carried in the TAU or RAU or LAU accept message and sent to the user equipment. In a seventh possible implementation manner of the third aspect, the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, where: the MME or the SGSN or the MSC returns to the user equipment. NAS signaling carrying CBC and/or CBE information and for assigning an IP address, the NAS signaling is: activating a default evolved packet system EPS bearer context request message in an LTE system, or activation in a UMTS or GPRS system The packet data protocol PDP context receives the message. In an eighth possible implementation manner of the third aspect, the network side device is a first resolution server corresponding to the access network of the user equipment, and the network side device receives the acquired CBC and sent by the user equipment. The request message of the CBE information includes: the first resolution server receives a request message for acquiring CBC and/or CBE information sent by the user equipment according to the IP address obtained by the PLMN ID of the user equipment currently accessing the network, and then The network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, where specifically: the first resolution server sends the CBC corresponding to the request message to the user equipment, and/or

CBE information. In a ninth possible implementation manner of the third aspect, the network side device is a globally unique second resolution server, and an IP address of the second resolution server is pre-stored on the user equipment, and the network side is Receiving, by the device, the request message for acquiring the CBC and/or CBE information sent by the user equipment, the method includes: the second resolution server receiving the request for acquiring the CBC and/or CBE information sent by the user equipment according to the IP address of the pre-stored resolution server a message, where the request message carries the PLMN ID of the PLMN currently accessed by the user equipment, the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically: The second resolution server sends CBC and/or CBE information corresponding to the request message to the user equipment. In a fourth aspect, the embodiment of the present invention further provides a user equipment, including: a first sending module, configured to send, to a network side device, a request message for acquiring a cell broadcast entity CBC and/or a cell broadcast center CBE information; And configured to receive CBC and/or CBE information corresponding to the request message returned by the network side device. In a first possible implementation manner of the fourth aspect, the request message is an attach request message, where the network side device is a mobility management entity MME in a long term evolution LTE system, or a universal mobile communication system UMTS or packet switching The GPRS service support node SGSN in the communication technology GPRS system, or the mobile switching center MSC in the global mobile communication system GSM, the first receiving module includes: a first receiving submodule, configured to receive the MME or the SGSN Or an attach accept message or a security mode command message that is sent by the MSC to carry the CBC and/or CBE information; where the attach accept message or the security mode command message is generated by the network side device when the context of the user equipment is not detected. a first acquisition submodule, configured to obtain, by the user equipment, CBC and/or CBE information from the attach accept message or the security mode command message. In a second possible implementation manner of the fourth aspect, the request message is an attach request message, where the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or The MSC, the first sending module, includes: a first determining submodule, configured to determine whether the public land mobile network identifier is pre-saved

The CBC and/or CBE information associated with the PLMN ID; the first sending submodule, configured to send, to the MME or the SGSN or the MSC, the information that does not require CBC and/or CBE information if the result of the determining submodule is yes And the second sending submodule, configured to send, to the MME or the SGSN or the MSC, an attach request message that carries an indication that the CBC and/or CBE information is required; The first receiving module is specifically configured to: obtain the CBC and/or CBE information by receiving an attach accept message or a security mode command message returned by the network side. In a third possible implementation manner of the fourth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is used. The request message is a tracking area update TAU message, and the request message is a routing area update RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is in the CS domain and the GSM system of the UMTS system. The location area is updated with the LAU request message, and the first receiving module includes: a second receiving submodule, configured to receive a TAU that carries the CBC and/or CBE information corresponding to the TAU or RAU or LAU sent by the MME or the SGSN or the MSC. Or the RAU or the LAU accepts the message, where the TAU or RAU or LAU accept message is a message generated by the MME or the SGSN or the MSC when detecting that the user equipment is a roaming user; The CAU and/or CBE information is obtained in the TAU or RAU or LAU accept message. In a fourth possible implementation manner of the fourth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, where the LTE system is in the LTE system. The request message is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is a LAU request message in a CS domain and a GSM system of the UMTS system. The first sending module includes: a second determining submodule, configured to determine whether the public land mobile network identifier is pre-saved

a CBC and/or CBE information associated with the PLMN ID; a third sending submodule, configured to send, to the MME or the SGSN or the MSC, the CBC and/or CBE information if the result of the determining submodule is negative A TAU or RAU or LAU request message, wherein the TAU or RAU or LAU request message includes an indication to request acquisition of CBC and/or CBE information from the MME or SGSN or MSC. In a fifth possible implementation manner of the fourth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, The request message in the LTE system is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is in a CS domain and a GSM system of the UMTS system. The LAU request message, in the case that the user equipment cannot verify the test message sent by the MME, the SGSN, or the MSC, the first sending module includes: a fourth sending submodule, configured to send, to the MME or the SGSN or the MSC, the CBC and the CBC. /or

a TAU or RAU or LAU request message of the CBE information, the TAU or RAU or LAU request message including a CBC and/or CBE identifier corresponding to the test message, such that the MME, SGSN or MSC will refer to the CBC and/or The CBC and/or CBE information corresponding to the CBE identifier is carried in the TAU or RAU or LAU accept message. In a sixth possible implementation manner of the fourth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, The sending module specifically includes: a fifth sending submodule, configured to periodically send the saved CBC and/or CBE information identifier to the MME or the SGSN or the MSC according to a preset time interval, so that the MME or the SGSN or the MSC is saved. If the identifier of the CBC and/or CBE information is different from the identifier of the CBC and/or CBE information sent by the user equipment, the CBC and/or CBE information corresponding to the identifier of the CBC and/or CBE information sent by the user equipment is carried. The device is sent to the user equipment in a TAU or RAU or LAU accept message. In a seventh possible implementation manner of the fourth aspect, the first receiving module includes: a third receiving submodule, configured to receive, by the MME or the SGSN or the MSC, the information carrying the CBC and/or CBE In the NAS signaling for allocating an IP address, the NAS signaling is: activating a default evolved packet system EPS bearer context request message in the LTE system, or an activated packet data protocol PDP context receive message in the UMTS or GPRS system. In an eighth possible implementation manner of the fourth aspect, the network side device is a first resolution server that is corresponding to the access network of the user equipment, and the sending module includes: a third obtaining submodule, configured to acquire an IP address of the first parsing server according to a PLMN ID of the current access network, and a sixth sending submodule, configured to send, to the first parsing server corresponding to the IP address, an acquired CBC and / or request message for CBE information. In a ninth possible implementation manner of the fourth aspect, the network side device is a globally unique second resolution server, and the IP address of the second resolution server is pre-stored on the user equipment, and the sending module is The method includes: a search submodule, configured to search for a pre-saved IP address of the second parsing server; and a seventh sending submodule, configured to send a request for acquiring CBC and/or CBE information to the second parsing server corresponding to the IP address The message carries the PLMN ID of the PLMN currently accessed by the user equipment. In a fifth aspect, the embodiment of the present invention further provides a user equipment, including at least one processor, at least one network interface or other communication interface, a memory, and at least one communication bus, for implementing connection communication between the devices; among them,

Storing a program instruction for execution by the processor, wherein: the program instruction includes a first sending module and a first receiving module; the first sending module, configured to send, to the network side device, a cell broadcast entity CBC And a request message of the CBE information of the cell broadcast center; the first receiving module is configured to receive CBC and/or CBE information corresponding to the request message returned by the network side device. In a sixth aspect, the embodiment of the present invention further provides a user equipment, including: a first acquiring module, configured to acquire a public land mobile network PLMN identifier that is currently accessed; and a second acquiring module, configured to use the pre-stored PLMN identifier Corresponding relationships with CBC and/or CBE information are used to obtain CBC and/or CBE information. In a seventh aspect, the embodiment of the present invention further provides a user equipment, including at least one processor, at least one network interface or other communication interface, a memory, and at least one communication bus, for implementing connection communication between the devices; among them,

Storing a program instruction for execution by the processor, the program instruction includes a first acquisition module and a second acquisition module, and the first acquisition module is configured to acquire a public land mobile network PLMN that is currently accessed. Identification

The second obtaining module is configured to obtain CBC and/or CBE information according to a correspondence between the pre-stored PLMN identifier and the CBC and/or CBE information. The eighth aspect, the embodiment of the present invention further provides a network side device, including: a detecting module, configured to detect whether a user equipment corresponding to the access network is initially networked or CBC and/or CBE information is updated; In the case that the result of the detection module is YES, the resolution server corresponding to the access network of the user equipment pushes the CBC and/or CBE information to the user equipment. The ninth aspect, the embodiment of the present invention further provides a network side device, including at least one processor, at least one network interface or other communication interface, a memory, and at least one communication bus, configured to implement connection communication between the devices. ; among them,

Storing a program instruction for being executed by the processor, where the program instruction includes a detection module and a push module; the detection module is configured to acquire a public land mobile network PLMN identifier currently accessed; The CBC and/or CBE information is obtained according to the correspondence between the pre-stored PLMN identifier and the CBC and/or CBE information. The tenth aspect, the embodiment of the present invention further provides a network side device, including: The second receiving module is configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment, where the second sending module is configured to send CBC and/or CBE information corresponding to the request message to the user equipment. In a first possible implementation manner of the tenth aspect, the request message is an attach request message, where the network side device is an MME in an LTE system or an SGSN in UMTS or GPRS or an MSC in GSM, The second sending module includes: a first detecting submodule, configured to detect whether a context of the user equipment exists; and an eighth sending submodule, configured to: when the result of the first detecting submodule is negative, The CBC and/or CBE information is carried in an attach accept message or a secure mode command message, and an attach request message or a secure mode command message carrying the CBC and/or CBE information is sent to the user equipment. In a second possible implementation manner of the tenth aspect, the request message is an attach request message, where the network side device is an MME in an LTE system, or a GPRS service support node SGSN in a UMTS or GPRS system, or The MSC in the GSM, the second receiving module, includes: a fourth receiving submodule, configured to pre-store CBC and/or CBE information associated with the public land mobile network identifier PLMN ID of the attached network in the user equipment. The MME or the SGSN or the MSC receives an attach request message sent by the user equipment that carries an indication that the CBC and/or CBE information is not required. The fifth receiving submodule is configured to not save and attach the user equipment in advance. In the case of the CBC and/or CBE information associated with the PLMN ID of the network, the MME or the SGSN or the MSC receives an attach request message sent by the user equipment that carries an indication of the required CBC and/or CBE information; Specifically, the method is: sending, to the user equipment, an attach accept message or a security mode command message that carries the CBC and/or CBE information. In a third possible implementation manner of the tenth aspect, the network side device is an MME or an SGSN or an MSC, and the request message in the LTE system is a TAU message, and the PS domain and the GPRS in the UMTS system. The request message in the system is a RAU message, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, and the second sending module includes: a second detecting submodule, configured to The TAU or RAU or LAU request message detects whether the user equipment is a roaming user; and the ninth sending submodule is configured to, when the result of the second detecting submodule is YES, be related to TAU or RAU or LAU The CBC and/or CBE information corresponding to the request message is carried in the TAU or RAU or LAU accept message, and the TAU or RAU or LAU accept message carrying the CBC and/or CBE information is sent to the user equipment. In a fourth possible implementation manner of the tenth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, where the LTE system is in the LTE system. The request message is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is a LAU request message in a CS domain and a GSM system of the UMTS system. The second receiving module includes: a sixth receiving submodule, configured to: when the user equipment pre-stores the CBC and/or CBE information associated with the PLMN ID of the attached network, receive the carrying CBC that is not required by the user equipment And/or an indicated TAU or RAU or LAU request message of the CBE information; a seventh receiving submodule, configured to not pre-store and attach the network to the user equipment

In the case of CBC and/or CBE information associated with the PLMN ID, the MME or SGSN or MSC receives a TAU or RAU or LAU request message sent by the user equipment that requires an indication of CBC and/or CBE information. In a fifth possible implementation manner of the tenth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, in the CS domain of the UMTS system and The request message in the GSM system is a LAU request message. In the case that the user equipment cannot verify the test message sent by the MME or the SGSN or the MSC, the second receiving module includes: an eighth receiving submodule, configured to receive the user equipment to send a request message for obtaining CBC and/or CBE information, the request message includes a CBC and/or CBE identifier corresponding to the test message, and a first carrying submodule, configured to correspond to the CBC and/or CBE identifier The CBC and/or CBE information is carried in a TAU or RAU or LAU accept message. In a sixth possible implementation manner of the tenth aspect, the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM, where the LTE system is The request message is a TAU message, and the request message is a RAU message in the PS domain and the GPRS system of the UMTS system, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system, where The second receiving module includes: a ninth receiving sub-module, configured to receive, by the user equipment, the identifier of the saved CBC and/or CBE information periodically, according to the preset time interval; a third detecting submodule, configured to detect whether the saved identifier of the CBC and/or the CBE is different from the identifier of the CBC and/or the CBE sent by the user equipment, where the second carrying submodule is configured to perform the third detecting If the result of the submodule is yes, the saved CBC and/or CBE information is carried in the TAU or RAU or LAU accept message and sent to the user equipment. In a seventh possible implementation of the tenth aspect, the second sending module includes: a returning submodule, configured to return, to the user equipment, the NAS that carries the CBC and/or CBE information and is used to allocate an IP address. Signaling, the NAS signaling is: activating a default evolved packet system EPS bearer context request message in an LTE system, or an activated packet data protocol PDP context receive message in a UMTS or GPRS system. In an eighth possible implementation manner of the tenth aspect, the network side device is a first resolution server corresponding to the access network of the user equipment, and the second receiving module includes: a ninth receiver And a module, configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment according to the IP address obtained by the PLMN ID of the user equipment currently accessing the network. In a ninth possible implementation manner of the tenth aspect, the network side device is a globally unique second resolution server, and an IP address of the second resolution server is pre-stored on the user equipment, and the second The receiving module includes: a tenth receiving submodule, configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment according to an IP address of a pre-stored parsing server, where the request message carries the user equipment The PLMN ID of the currently accessed PLMN. In an eleventh aspect, an embodiment of the present invention further provides a network side device, including at least one processor, at least one network interface or other communication interface, a memory, and at least one communication bus, configured to implement a connection between the devices. Communication; among them,

Storing a program instruction for execution by the processor, the program instruction includes a second receiving module and a second sending module, and the second receiving module is configured to receive an acquisition CBC and/or sent by the user equipment. Request message for CBE information;

The second sending module is configured to send CBC and/or CBE information corresponding to the request message to the user equipment. Advantageous effects of embodiments of the present invention include:

In the method provided by the embodiment of the present invention, when the UE initially accesses the network or roams to another carrier network, the CBC/CBE information request information is sent to the network device to notify the network that the user equipment needs to obtain CBC/CBE information, and the network The side sends the CBC/CBE information that is to be acquired to the UE that is initially accessing the network or roaming to other carrier networks according to the request information, so that when the UE initially accesses the network or roams to other carrier networks, the related information can be obtained. CBC/CBE information, thus establishing a secure connection with the CBC/CBE, obtaining the PWS public key, and reducing the occurrence of disasters.

DRAWINGS

1 is a flowchart of Embodiment 1 of a method for acquiring CBC and/or CBE information provided by the present invention;

2 is a flowchart of Embodiment 2 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

FIG. 3 is a flowchart of Embodiment 3 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

4 is a flowchart of Embodiment 4 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

FIG. 5 is a flowchart of Embodiment 5 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

FIG. 6 is a flowchart of Embodiment 6 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

FIG. 7 is a flowchart of Embodiment 7 of a method for acquiring CBC and/or CBE information according to an embodiment of the present invention;

FIG. 8 is a flowchart of Embodiment 8 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 9 is a flowchart of Embodiment 9 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 10 is a flowchart of Embodiment 10 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 11 is a flowchart of Embodiment 11 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 12 is a flowchart of Embodiment 12 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 13 is a schematic diagram of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention. The flowchart of Example 13;

FIG. 14 is a flowchart of Embodiment 14 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present invention; FIG. 16 is a schematic structural diagram of a first receiving module according to Embodiment 1 of a user equipment according to the present invention;

FIG. 17 is a schematic structural diagram of a first sending module according to Embodiment 1 of a user equipment according to the present invention;

FIG. 18 is a schematic structural diagram of Embodiment 2 of a user equipment according to the present invention; FIG. 19 is a schematic structural diagram of Embodiment 3 of a user equipment according to the present invention; FIG. FIG. 21 is a schematic structural diagram of Embodiment 5 of a user equipment according to the present invention; FIG. 22 is a schematic structural diagram of Embodiment 6 of a user equipment according to the present invention; FIG. 24 is a schematic structural diagram of a user equipment according to Embodiment 8 of the present invention; FIG. 25 is a hardware architecture diagram of a user equipment according to the present invention;

FIG. 28 is a schematic structural diagram of another embodiment of a user equipment provided by the present invention; FIG. 28 is a hardware architecture diagram of another embodiment of a user equipment provided by the present invention; FIG. 29 is a schematic structural diagram of a network side device according to the present invention; FIG.

FIG. 30 is a schematic structural diagram of Embodiment 2 of a network side device according to the present invention; FIG. 31 is a schematic structural diagram of Embodiment 3 of a network side device according to the present invention; FIG. 33 is a schematic structural diagram of Embodiment 5 of a network side device according to the present invention; FIG. 34 is a schematic structural diagram of Embodiment 6 of a network side device according to the present invention; FIG. 36 is a schematic structural diagram of Embodiment 8 of a network side device according to the present invention; FIG. 37 is a schematic structural diagram of Embodiment 9 of a network side device according to the present invention; FIG. 38 is a schematic structural diagram of Embodiment 10 of a network side device according to the present invention; FIG. 39 is a schematic structural diagram of Embodiment 11 of a network side device according to the present invention; FIG. 40 is a hardware architecture diagram of another network side device according to the present invention.

DETAILED DESCRIPTION OF THE EMBODIMENTS Embodiments of the present invention provide a method and an apparatus for acquiring and transmitting CBC and/or CBE information. The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only The invention is illustrated and described, and is not intended to limit the invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Embodiment 1: Referring to FIG. 1 , which is a flowchart of Embodiment 1 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include: Step 101: User equipment to the network side The device sends a request message to obtain CBC and/or CBE information. The request message is an attach request message, and the network side device is a mobility management entity (MME, Mobility Management Entity) in a Long Term Evolution (LTE) system, or a universal mobile communication system (UMTS, Universal) Mobile Telecommunications System) or GPRS Service Support Node (SGSN, Serving GPRS SUPPORT NODE) in the GPRS (General Packet Radio Service) system, or in the Global System for Mobile Communications (GSM) The mobile switching center (MSC), the user equipment first needs to send an attach request message for obtaining CBC and/or CBE information to the network side device when acquiring the CBC and/or CBE information. Step 102: The user equipment receives The CBC and/or CBE information corresponding to the request message returned by the network side device. When the user equipment UE is attached to an operator network, if the user equipment does not establish a connection in the carrier network, When there is no context of the user equipment in the network, then At this time, an attach accept message or a security mode command message is generated in the network device. The network device sends an attach accept message or a security mode command message carrying the CBC and/or CBE information to the user equipment to enable the user equipment to obtain CBC and/or CBE information. Specifically, the user equipment obtains CBC and/or CBE information by receiving an attach accept message or a security mode command message that is sent by the MME or the SGSN or the MSC to carry CBC and/or CBE information. The network device MME or the SGSN or the MSC may be multiple, so the request message sent by the user equipment is corresponding to the specific network device. In the technical solution of the embodiment, when the UE initially accesses the network or roams to another carrier network, the CBC/CBE information request information is sent to the network device to notify the network that the user equipment needs to obtain CBC/CBE information, and the network side Transmitting, according to the request information, the CBC/CBE information that is to be acquired to the UE that is initially accessing the network or roaming to other carrier networks, so that when the UE initially accesses the network or roams to other carrier networks, the relevant CBC can be obtained. /CBE information, thus establishing a secure connection with the CBC/CBE, obtaining the PWS public key, and reducing the occurrence of disasters.

Embodiment 2: Referring to FIG. 2, which is a flowchart of Embodiment 2 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include the following steps: Step 201: User equipment determines Whether the CBC and/or CBE information associated with the public land mobile network identity PLMN ID is pre-stored, if yes, proceed to step 202, and if no, proceed to step 203. Step 202: The user equipment sends an attach request message carrying an indication that the CBC and/or CBE information is not required to the MME or the SGSN or the MSC, and the process proceeds to step 204. Step 203: The user equipment sends an attach request message carrying an indication that the CBC and/or CBE information is required to the MME or the SGSN or the MSC, and the process proceeds to step 204. In the step 201, the user equipment sends the content of the attach request message to the network device according to whether the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID is saved, if the user equipment is different. Saved with public land mobile network logo The CBC and/or CBE information associated with the PLMN ID, then the network device needs to indicate to the network device that the user equipment does not need to obtain CBC and/or CBE information; otherwise, the user equipment needs to be indicated to the network device. Need to get CBC and / or CBE information. When the user equipment indicates to the network device whether the user equipment needs to obtain CBC and/or CBE information from the network side, the user equipment may be implemented by: adding, by the user equipment, a cell IE "CBC/CBE information indication" in the attach request message. The cell length is 1 bit. When the UE needs to obtain CBC/CBE information from the network side, the cell can be set to "1"; when the UE does not need to obtain CBC/CBE information from the network side, the cell can be Set to "0". When the UE is to attach to an operator network, if the UE does not have CBC and/or CBE information corresponding to the network PLMN ID, the UE sets the "CBC/CBE information indication" bit to "1" in the attach request message. " , requesting the network side to obtain CBC/CBE information. Step 204: The network side device determines, according to the attach request message, whether the user equipment needs CBC and/or CBE information, and if yes, proceeds to step 205. After the network side receives the attach request message sent by the user equipment, if the "CBC/CBE information indication" bit in the attach request message is "1", the network side device needs to send the latest CBC to the UE in the attach accept message. And / or CBE information. Step 205: The network side device sends the latest CBC and/or CBE information to the UE by using an attach accept message or a security mode command message. The CBC and/or CBE information sent by the network side device is the CBC and/or CBE information corresponding to the request message. Specifically, the network device may send the message to the user equipment by using an attach accept message or a security mode command message. Send the latest CBC and/or CBE information. It should be noted in this embodiment that if the network side device has carried the CBC and/or CBE information in the security mode command message after receiving the attach request message, the network side device then sends an attach accept message to the user equipment. At this time, the CBC and/or CBE information will no longer be carried in the attach accept message. If the network side device does not carry the CBC and/or CBE information in the security mode command message, the network side device will carry the CBC and/or CBE information in the attach accept message to return to the user equipment. Step 206: The user equipment acquires the CBC and/or CBE information by receiving an attach accept message or a security mode command message returned by the network side. Correspondingly, the user equipment may acquire the CBC and/or CBE information by receiving an attach accept message or a security mode command message returned by the network side. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Embodiment 3: Referring to FIG. 3, which is a flowchart of Embodiment 3 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include: Step 301: User equipment to the network side The device sends a request message for obtaining CBC and/or CBE information. In the step 301, the network side device is an MME in the LTE system, an SGSN in the UMTS or GPRS system, or an MSC in the GSM. Correspondingly, when the network side device is an MME in the LTE system, the request message in the LTE system is a tracking area update TAU message, and in the PS domain and the GPRS system of the UMTS system, the request message is The routing area updates the RAU message, and the request message is a location area update L AU request message in the CS domain and the GSM system of the UMTS system. Step 302: The network side device determines whether the UE is a roaming user equipment, and if yes, proceeds to step 303. The TAU/RAU/LAU/Request identifies the temporary identity or area identifier assigned by the user equipment to the network of the carrier in the most recent period of time, so that the network side device can pass the detection. The TAU/RAU/LAU/request sent by the user equipment determines whether the user equipment is roamed by another carrier network. Step 303: The network side device sends a TAU carrying the CBC and/or CBE information to the UE or

The RAU or LAU accepts the message. When the MME or the SGSN or the MSC detects that the user equipment is a roaming user, it will generate a TAU or RAU or LAU accept message, and then the MME or the SGSN or the MSC sends a bearer corresponding to the TAU or RAU or LAU. The TAU or RAU or LAU of the CBC and/or CBE information accepts a message to enable the user equipment to obtain CBC and/or CBE information from the TAU or RAU or LAU accept message. Step 304: The user equipment acquires CBC and/or CBE information from the TAU or RAU or LAU accept message. Specifically, the user equipment acquires CBC and/or CBE information from a TAU or RAU or LAU accept message sent by the network side device. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Embodiment 4: Referring to FIG. 4, which is a flowchart of Embodiment 4 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include: Step 401: User equipment determines whether The CBC and/or CBE information associated with the public land mobile network identity PLMN ID is saved, and if not, then proceeds to step 402. Step 402: Send a TAU or RAU or LAU request message for acquiring CBC and/or CBE information to the network side device. The network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, and correspondingly, the request message in the LTE system is a TAU message, in the UMTS The request message in the PS domain and the GPRS system of the system is an RAU message, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system. In this step, the user equipment sends a TAU or RAU to the network device according to whether it saves the CBC and/or CBE information associated with the public land mobile network identity PLMN ID. Or the content of the LAU request message is different. If the user equipment saves the CBC and/or CBE information associated with the public land mobile network identity PLMN ID, then the network device needs to be in the TAU or RAU or LAU request message. The user equipment is instructed not to acquire CBC and/or CBE information; otherwise, the network equipment needs to be instructed that the user equipment needs to acquire CBC and/or CBE information. Step 403: The network side device determines, according to the TAU or RAU or LAU request message, whether the user equipment needs CBC and/or CBE information, and if yes, proceeds to step 404. When the user equipment indicates to the network device whether the user equipment needs to obtain the CBC and/or CBE information from the network side, the specific implementation manner may refer to the implementation manner of step 204 in the second embodiment, and details are not described herein again. Step 404: The network side device sends the latest CBC and/or CBE information to the UE by using a TAU or RAU or LAU accept message. Step 405: The user equipment receives a TAU or RAU or LAU accept message carrying the CBC and/or CBE information returned by the network side device. The implementation of the steps 403 to 405 is similar to the implementation of the step 204 to the step 206, and details are not described herein again. The difference is that, in this embodiment, the network side device sends the latest CBC and/or CBE information to the UE through the TAU or RAU or LAU accept message.

In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Embodiment 5:

When the UE attaches to a new carrier network or roams to other carrier networks, it needs to obtain new CBC/CBE information from the network. In addition, if the CBC/CBE information inside an operator's network is updated, for example, the carrier network adds a connection with a new CBE, the UE also needs to obtain updated CBC/CBE information from the network. . If the CBC/CBE information of the carrier network is updated and the UE cannot verify the test test message, then the UE is the same Updated CBC/CBE information needs to be obtained from this network. When the user equipment cannot verify the test test message, reference may be made to FIG. 5, which is a flowchart of Embodiment 5 of the method for obtaining CBC and/or CBE information according to an embodiment of the present invention. The embodiment may specifically include: 501: In a case that the user equipment cannot verify the test message sent by the MME, the SGSN, or the MSC, the user equipment sends a request message for acquiring the CBC and/or CBE information to the network side device. The network side device is an MME in the LTE system, or an SGSN in the UMTS or GPRS system, or an MSC in the GSM, corresponding to the case where the user equipment cannot verify the test message sent by the MME, the SGSN or the MSC. The request message in the LTE system is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is in a CS domain and a GSM system of the UMTS system. Request a message for the LAU. The TAU or RAU or LAU request message includes a CBC and/or CBE identifier corresponding to the test message, so that the MME, SGSN or MSC carries the CBC and/or CBE information corresponding to the CBC and/or CBE identifier. Accept the message in TAU or RAU or LAU. Step 502: The network side device sends the latest CBC and/or CBE information to the UE by using a TAU or RAU or LAU accept message. Step 503: The user equipment receives a TAU or RAU or LAU accept message of the carried CBC and/or CBE information returned by the network side device.

The implementation of the steps 502 to 503 is similar to the implementation of the steps 404 to 405 in the fourth embodiment, and details are not described herein again. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Further, the user equipment requests the network device to obtain the CBC/CBE information related to the TEST message that cannot be verified by the request information, and further improves the CBC/CBE information. s efficiency. Embodiment 6

Referring to FIG. 6, which is a flowchart of Embodiment 6 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, the embodiment may specifically include:

Step 601: The user equipment periodically sends a request message for obtaining CBC and/or CBE information to the network side device according to the preset time interval.

The network side device is an MME in the LTE system, or an SGSN in the UMTS or GPRS system, or an MSC in the GSM, where the user equipment periodically sends the MME or the SGSN or the MSC according to a preset time interval. The identifier of the CBC and/or CBE information that the user device has saved. The request message in the LTE system is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is in a CS domain and a GSM system of the UMTS system. LAU request message.

Step 602: The network side device determines, according to the identifier of the CBC and/or CBE information in the TAU/RAU/LAU request message, whether the CBC and/or CBE information in the network side device is updated, and if yes, proceeds to step 603.

After receiving the TAU/RAU/LAU request message, the MME or the SGSN or the MSC compares whether the identifier of the CBC and/or CBE information in the request message is identical to the identifier of the CBC and/or CBE information of itself, if not identical. The CBC and/or CBE information in the MME or the SGSN or the MSC is updated. In this case, the MME or the SGSN or the MSC may feed back the updated CBC and/or CBE information to the user equipment, or the MME or the SGSN or the MSC may All CBC and/or CBE lists including updated CBC and/or CBE information are fed back to the user equipment.

Step 603: The network side device sends the CBC and/or CBE information to the UE by using the TAU/RAU/LAU accept message. The MME or SGSN or MSC feeds back the updated CBC and/or CBE information to the user equipment via the TAU/RAU/LAU accept message, or feeds back all CBC and/or CBE lists to the user equipment.

Step 604: The user equipment receives the TAU/RAU/LAU accept message sent by the network side device and carries the CBC and/or CBE information.

The user equipment may extract updated CBC and/or CBE information by receiving a TAU/RAU/LAU accept message. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Further, the user equipment periodically sends a request for acquiring CBC/CBE information to the network device, and each time, the network device only needs to feed back the updated CBC/CBE information to the user equipment, thereby reducing the number of information transmission and saving. Network resources improve the efficiency of obtaining CBC/CBE information. It should be noted that, in addition to the technical solutions described in the first embodiment to the sixth embodiment, in actual operation, the network side device may be a resolution server corresponding to the access network of the user equipment, Then, the user equipment can obtain the IP address of the resolution server according to the PLMN ID of the current access network; then the user equipment can send a request message for obtaining the CBC and/or CBE information to the resolution server corresponding to the IP address. Alternatively, in a practical application, a globally unique CBC and/or CBE resolution server may be deployed, and the IP address of the resolution server is pre-stored on the user equipment, and the user equipment may pre-store the The parsing server corresponding to the IP address sends a request message for acquiring CBC and/or CBE information, where the request message carries the PLMN ID of the PLMN currently accessed by the user equipment, so that the parsing server can identify according to the PLMN ID. Which network is the network, and specifically feedback the CBC and/or CBE information of the corresponding network to the user equipment. On the network side, the network side device may also return CBC and/or CBE information to the user equipment through NAS signaling. Specifically, the default evolved packet system may be activated by extending the LTE system. The EPS bears the Context Request message, or the Activate Packet Data Protocol PDP Context Receive message in the UMTS or GPRS system carries the CBC and/or CBE information. For the specific implementation, reference may be made to the related steps in the foregoing Embodiment 1 to Embodiment 6, and details are not described herein again. Example 7:

Referring to FIG. 7 , which is a flowchart of Embodiment 7 of a method for obtaining CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include: Step 701: The user equipment acquires the public land currently accessed. Mobile network PLMN identity; Step 702: The user equipment acquires CBC and/or CBE information corresponding to the PLMN identity. In practical applications, the PLMN and its associated CBC/CBE information that is allowed to access may be pre-configured on the user equipment. When the user equipment accesses an operator network, since the PLMN and CBC/CBE information are mutually corresponding, it can be obtained from the corresponding CBC/CBE according to the pre-configured PLMN query and its corresponding CBC/CBE information. PWS public key. Preferably, OMA DM can be used to pre-configure or update CBC/CBE information on the UE.

In the technical solution of this embodiment, the PLMN that is allowed to access and its related CBC/CBE information may be pre-configured on the user equipment. It is convenient for the user equipment to query the CBC/CBE information according to the pre-configured PLMN and its associated CBC/CBE information, and then obtain the PWS public key from the corresponding CBC/CBE.

Example eight

Referring to FIG. 8, which is a flowchart of Embodiment 8 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention, the embodiment may specifically include:

Step 801: The parsing server detects whether the user equipment is initially connected to the network. If yes, enter the step. Step 802, if no, proceed to step 803.

Step 802: The resolution server pushes CBC and/or CBE information to the user equipment. When the user equipment accesses a certain carrier network, the resolution server corresponding to the network accessed by the user equipment detects whether the user equipment is initially connected to the network, and if the user equipment is the first time entering the network, the user equipment is Send CBC and/or CBE information.

Step 803: The parsing server detects whether the CBC and/or CBE information is updated, and if yes, proceeds to step 804.

Step 804: The resolution server pushes CBC and/or CBE information to the user equipment. When the parsing server detects that the user equipment is not initially accessing the network, it may determine whether the CBC and/or CBE information is updated. If there is updated CBC and/or CBE information, the parsing server may only The user equipment push generates updated CBC and/or CBE information, and all CBC and/or CBE lists including updated CBC and/or CBE information may also be pushed to the user equipment.

In the technical solution of the embodiment, for the UE in the initial access network, the network side device sends CBC/CBE information to the UE, so that the UE that initially accesses the network establishes a secure connection with the CBC/CBE, acquires the PWS public key, and reduces the disaster. happened. For the user equipment that is not initially connected to the network, the network side device only needs to feed back the updated CBC/CBE information to the UE, which improves the efficiency of the user equipment to obtain CBC/CBE information and saves network resources.

Example 9:

Referring to FIG. 9 , which is a flowchart of Embodiment 9 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention, this embodiment may specifically include: Step 901: The network side device receives the acquisition sent by the user equipment. a request message of the CBC and/or CBE information; wherein the request message is an attach request message, and the network side device is a mobility management entity (MME, Mobility) in a Long Term Evolution (LTE) system Management Entity ) , or GPRS Service Support Node ( SGSN , Serving GPRS SUPPORT NODE ) in the Universal Mobile Telecommunications System ( UMTS ) or GPRS (General Packet Radio Service ) system, or global Mobile Switching Center (MSC, Mobile Switching Center) in the mobile communication system (GSM, Global System for Mobile Communications). Step 902: The network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment. When the user equipment UE is attached to an operator network, if the user equipment does not establish a connection in the operator network, that is, the context of the user equipment is not in the network, then the network equipment is An attach request message or a secure mode command message is generated. The network device sends an attach accept message or a security mode command message carrying CBC and/or CBE information to the user equipment, so that the user equipment obtains CBC and/or CBE information. Specifically, the user equipment obtains CBC and/or CBE information by receiving an attach accept message or a security mode command message that is sent by the MME or the SGSN or the MSC to carry CBC and/or CBE information. The network device MME or the SGSN or the MSC may be multiple, so the request message sent by the user equipment is corresponding to the specific network device. In the technical solution of the embodiment, when the UE initially accesses the network or roams to another carrier network, after the UE sends the attach request message, the network device may determine whether the CBC/CBE information needs to be sent to the UE, and if necessary, the initial connection is performed. The UE that enters the network or roams to other carrier networks sends the CBC/CBE information that it wants to obtain, so that when the UE initially accesses the network or roams to other carrier networks, relevant CBC/CBE information can be obtained, thereby The CBC/CBE establishes a secure connection and obtains the PWS public key to reduce the occurrence of disasters. Example 10:

Referring to FIG. 10, it is a flowchart of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention. The embodiment may specifically include:

Step 1001: The network side device receives an attach request message sent by the user equipment to obtain CBC and/or CBE information. The content of the attach request message received by the network device is different if the user equipment saves the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID, if the user equipment saves the public land mobile The network identifies the CBC and/or CBE information associated with the PLMN ID, and then needs to identify that the user equipment does not need to obtain the CBC and/or CBE information in the attach request message; otherwise, the user equipment needs to be identified to obtain the CBC and/or CBE information.

When the user equipment indicates to the network device whether the user equipment needs to obtain CBC and/or CBE information from the network side, the user equipment may be implemented by: adding, by the user equipment, a cell IE "CBC/CBE information indication" in the attach request message. The cell length is 1 bit. When the UE needs to obtain CBC/CBE information from the network side, the cell can be set to "1"; when the UE does not need to obtain CBC/CBE information from the network side, the cell can be Set to "0". When the UE is to attach to an operator network, if the UE does not have CBC and/or CBE information corresponding to the network PLMN ID, the UE sets the "CBC/CBE information indication" bit to "1" in the attach request message. " , requesting the network side to obtain CBC/CBE information.

Step 1002: The network device determines, according to the attach request message, whether the user equipment needs

The CBC and/or CBE information, if yes, proceeds to step 1003.

After the network side receives the attach request message sent by the user equipment, if the "CBC/CBE information indication" bit in the attach request message is "1", the network side needs to send the latest CBC and the UE to the UE in the attach accept message. / or CBE information.

Step 1003: The network side device sends the latest CBC and/or CBE information to the UE by using an attach accept message or a security mode command message.

The CBC and/or CBE information sent by the network side device is the CBC and/or CBE information corresponding to the request message. Specifically, the network device may send the message to the user equipment by using an attach accept message or a security mode command message. Send the latest CBC and/or CBE information.

It should be noted that, after the network side device receives the attach request message, it is already in the The CBC and/or CBE information is carried in the security mode command message. Then, when the network side device sends the attach accept message to the user equipment, the CBC and/or CBE information is no longer carried in the attach accept message. If the network side device does not carry the CBC and/or CBE information in the security mode command message, the network side device will carry the CBC and/or CBE information in the attach accept message to return to the user equipment.

In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. .

Example 11:

FIG. 11 is a flowchart of Embodiment 11 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention. The embodiment may specifically include:

Step 1101: The network side device receives a request message for acquiring CBC and/or CBE information sent by the user equipment.

The network side device is an MME in the LTE system, or an SGSN in the UMTS or GPRS system, or an MSC in the GSM, corresponding to, when the network side device is an MME in the LTE system, the request message is tracking The area update TAU message, in the PS domain and the GPRS system of the UMTS system, the request message is a routing area update RAU message, and the request message is a location area update LAU in the CS domain and the GSM system of the UMTS system Request message.

Step 1102: The network side device determines whether the UE is a roaming user equipment, and if yes, proceeds to step 1103.

The TAU/RAU/LAU/Request identifies the temporary identity or area identifier assigned by the user equipment to the network of the carrier in the most recent period of time, so that the network side device can detect the user equipment. The transmitted TAU/RAU/LAU/request determines if the user equipment is roaming by another carrier network. Step 1103: The network side device sends the latest CBC and/or CBE information to the UE by using a TAU or RAU or LAU accept message.

When the MME or SGSN or MSC detects that the user equipment is a roaming user, it will generate a TAU or RAU or LAU accept message, and then the MME or SGSN or MSC sends a TAU carrying CBC and/or CBE information to the user equipment. Or the RAU or LAU accepts the message to enable the user equipment to obtain CBC and/or CBE information from the TAU or RAU or LAU accept message.

Example 12:

Referring to FIG. 12, which is a flowchart of Embodiment 12 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention, the embodiment may specifically include:

Step 1201: The network side device receives a request message for acquiring CBC and/or CBE information sent by the user equipment.

The network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, and correspondingly, when the network side device is an MME in the LTE system, the request message is The TAU message, in the PS domain and the GPRS system of the UMTS system, the request message is a RAU message, and the request message is a LAU request message in the CS domain and the GSM system of the UMTS system.

In this step, the user equipment sends the content of the TAU or RAU or LAU request message to the network device according to whether the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID is saved by itself. The user equipment saves the CBC and/or CBE information associated with the public land mobile network identity PLMN ID, and then in the TAU or RAU or LAU request message, it is required to indicate to the network device that the user equipment does not need to acquire CBC and/or Or CBE information; otherwise, it is necessary to indicate to the network device that the user equipment needs to obtain CBC and/or CBE information.

Step 1202: The network side device determines, according to the TAU or RAU or LAU request message, whether the user equipment needs CBC and/or CBE information, and if yes, proceeds to step 1203.

Step 1203: The network side device sends a message to the UE by using a TAU or RAU or LAU accept message.

CBC and / or CBE information. Specifically, in this step, the network side device sends CBC and/or CBE information to the UE by using a TAU or RAU or LAU accept message. The MME or SGSN or MSC may only feed back updated CBC and/or CBE information to the user equipment, or the MME or SGSN or MSC may feed back all CBC and/or CBE lists including updated CBC and/or CBE information to the user. device.

In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Example 13:

Referring to FIG. 13 , which is a flowchart of Embodiment 13 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention, the embodiment may specifically include:

Step 1301: In the case that the user equipment cannot verify the test message sent by the MME, the SGSN, or the MSC, the network side device receives the request message for acquiring the CBC and/or CBE information sent by the user equipment.

The network side device is an MME in the LTE system, or an SGSN in the UMTS or GPRS system, or an MSC in the GSM, corresponding to the case where the user equipment cannot verify the test message sent by the MME, the SGSN or the MSC. The request message in the LTE system is a TAU message, and the request message is a RAU message in a PS domain and a GPRS system of the UMTS system, and the request message is in a CS domain and a GSM system of the UMTS system. Request for LAU Message.

The TAU or RAU or LAU request message includes a CBC and/or CBE identifier corresponding to the test message, so that the MME, SGSN or MSC carries the CBC and/or CBE information corresponding to the CBC and/or CBE identifier. Accept the message in TAU or RAU or LAU.

Step 1302: The network side device sends the latest CBC and/or CBE information to the UE through the TAU or RAU or LAU accept message.

Further, the user equipment requests the network device to obtain the CBC/CBE information related to the TEST message that cannot be verified by requesting the information, thereby further improving the efficiency of acquiring the CBC/CBE information. Embodiment 14:

Referring to FIG. 14, which is a flowchart of Embodiment 14 of a method for transmitting CBC and/or CBE information according to an embodiment of the present invention, the embodiment may specifically include:

Step 1401: The network side device receives a request message sent by the user equipment to obtain CBC and/or CBE information.

Step 1402: The network side device requests CBC and / according to the TAU/RAU/LAU request message. Or the identifier of the CBE information determines whether the CBC and/or CBE information in the network side device is updated, and if yes, proceeds to step 1403.

Step 1403: The network side device sends the CBC and/or CBE information to the UE by using the TAU/RAU/LAU accept message.

In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Further, the user equipment periodically sends a request for acquiring CBC/CBE information to the network device, and each time, the network device only needs to feed back the updated CBC/CBE information to the user equipment, thereby reducing the number of information transmission and saving. Network resources improve the efficiency of obtaining CBC/CBE information.

In the actual operation, the network side device may also return the CBC and/or CBE information to the user equipment by using the NAS signaling. Specifically, the default evolved packet system EPS bearer context request message may be activated by extending the LTE system, or The Activate Packet Data Protocol PDP Context Receive message in the UMTS or GPRS system carries CBC and/or CBE information. Preferably, the network side device may also be a resolution server corresponding to the access network of the user equipment, and then the resolution server may receive the IP obtained by the user equipment according to the PLMN ID of the user equipment currently accessing the network. Address sent for obtaining CBC and/or CBE information Request a message and feed back the corresponding CBC and/or CBE information to the user equipment. Preferably, the network side device may also be configured as a globally unique CBC and/or CBE resolution server, and the resolution server receives the CBC and/or CBE information sent by the user equipment according to the IP address of the pre-stored resolution server. The request message carries the PLMN ID of the PLMN currently accessed by the user equipment. The corresponding CBC and/or CBE information is then fed back to the user equipment.

Correspondingly, the present invention further provides a user equipment. Referring to FIG. 15, FIG. 15 is a schematic structural diagram of Embodiment 1 of a user equipment according to the present disclosure. The user equipment includes: a first sending module 1501, configured to The side device sends a request message for acquiring CBC and/or CBE information. The first receiving module 1502 is configured to receive CBC and/or CBE information corresponding to the request message returned by the network side device. Preferably, referring to FIG. 16, is a schematic structural diagram of the first receiving module 1502, where the request message is an attach request message, the network side device is a mobility management entity MME in a long term evolution LTE system, or a universal mobile communication The GPRS service support node SGSN in the system UMTS or the packet switched communication technology GPRS system, or the mobile switching center MSC in the global mobile communication system GSM, the first receiving module 1502 may specifically include: a first receiving submodule 1601, And receiving, by the MME or the SGSN or the MSC, an attach accept message or a security mode command message that carries CBC and/or CBE information, where the attach request message or the security mode command message is not detected by the network side device. The message generated when the context of the user equipment is generated; the first obtaining submodule 1602 is configured to obtain, by the user equipment, CBC and/or CBE information from the attach accept message or the security mode command message. Preferably, referring to FIG. 17, the request message of the first sending module 1501 is an attach request message, and the network side device is an MME in the LTE system, or, UMTS Or the SGSN in the GPRS system, or the MSC in the GSM, the first sending module 1501 may specifically include: a first determining submodule 1701, configured to determine whether the public land mobile network identifier PLMN ID is pre-saved CBC and/or CBE information; a first sending sub-module 1702, configured to send an attach carrying an indication that does not require CBC and/or CBE information to the MME or the SGSN or the MSC if the result of the determining sub-module is YES a requesting message; a second sending sub-module 1703, configured to send an attach request message carrying an indication that CBC and/or CBE information is required to the MME or the SGSN or the MSC; The returned attachment accept message or security mode command message is used to retrieve the CBC and/or CBE information. In the technical solution of the embodiment, when the UE initially accesses the network or roams to another carrier network, the CBC/CBE information request information is sent to the network device to notify the network that the user equipment needs to obtain CBC/CBE information, and the network side Transmitting, according to the request information, the CBC/CBE information that is to be acquired to the UE that is initially accessing the network or roaming to other carrier networks, so that when the UE initially accesses the network or roams to other carrier networks, the relevant CBC can be obtained. /CBE information, thus establishing a secure connection with the CBC/CBE, obtaining the PWS public key, and reducing the occurrence of disasters. Preferably, referring to FIG. 18, a schematic structural diagram of a second embodiment of a user equipment according to the present invention is provided. The user equipment further includes: a second receiving submodule 1801, in addition to the first sending module 1501, For receiving a TAU or RAU or LAU accept message sent by the MME or SGSN or MSC carrying CBC and/or CBE information corresponding to the TAU or RAU or LAU; wherein the TAU or RAU or LAU accept message is the MME or The message generated by the SGSN or the MSC when the user equipment is a roaming user is detected; the second obtaining sub-module 1802 is configured to obtain CBC and/or CBE information from the TAU or RAU or LAU accept message. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Preferably, referring to FIG. 19, a schematic structural diagram of a third embodiment of a user equipment according to the present invention is provided. The user equipment further includes: a second determining submodule 1901, in addition to the first receiving module 1502, For determining whether the CBC and/or CBE information associated with the public land mobile network identifier PLMN ID is saved in advance; the third sending submodule 1902, configured to: when the result of the determining submodule is negative, The MME or SGSN or MSC sends a TAU or RAU or LAU request message for obtaining CBC and/or CBE information, wherein the TAU or RAU or LAU request message includes requesting to obtain CBC and/or CBE information from the MME or SGSN or MSC Instructions. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . With reference to FIG. 20, it is a schematic structural diagram of a fourth embodiment of a user equipment according to the present invention. The user equipment includes a first receiving module 1502, a fourth sending submodule 2001, and a fourth sending submodule. 2001, configured to send a TAU or RAU or LAU request message for acquiring CBC and/or CBE information to an MME or an SGSN or an MSC, where the TAU or RAU or LAU request message includes a CBC and/or CBE identifier corresponding to the test message. So that the MME, SGSN or MSC carries the CBC and/or CBE information corresponding to the CBC and/or CBE identity in a TAU or RAU or LAU accept message. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Further, the user equipment requests the network device to obtain the CBC/CBE information related to the TEST message that cannot be verified by the request information, thereby further improving the efficiency of acquiring the CBC/CBE information. For example, FIG. 21 is a schematic structural diagram of Embodiment 5 of a user equipment according to the present disclosure. The user equipment includes a first receiving module 1502 and a fifth sending submodule 2101. The fifth sending submodule 2101. The identifier for periodically saving the saved CBC and/or CBE information is sent to the MME or the SGSN or the MSC according to a preset time interval, so that the identifier and the user of the saved CBC and/or CBE information are saved by the MME or the SGSN or the MSC. If the identifier of the CBC and/or CBE information sent by the device is different, the CBC and/or CBE information corresponding to the identifier of the CBC and/or CBE information sent by the user equipment is carried in a TAU or RAU or LAU accept message. Give the user device. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 22, a schematic structural diagram of a sixth embodiment of a user equipment according to the present invention is provided. The user equipment includes a first sending module 1501, a third receiving submodule 2201, and the third receiving submodule. 2201, configured to receive, by the MME or the SGSN or the MSC, the NAS signaling that carries the CBC and/or CBE information and is used to allocate an IP address, where the NAS signaling is: activating the default evolved packet system EPS bearer context in the LTE system. The request message, or the Activate Packet Data Protocol PDP Context Receive message in the UMTS or GPRS system. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 23, a schematic structural diagram of a seventh embodiment of a user equipment according to the present disclosure, where the user equipment includes a first receiving module 1502, a third obtaining submodule 2301, and a sixth sending submodule 2302; The third obtaining sub-module 2301 is configured to acquire an IP address of the first resolution server according to a PLMN ID of the current access network, and a sixth sending sub-module 2302, configured to send to the first resolution server corresponding to the IP address. Send a request message to obtain CBC and/or CBE information. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Preferably, referring to FIG. 24, a schematic structural diagram of Embodiment 8 of a user equipment according to the present disclosure, where the user equipment includes a first receiving module 1502, a searching submodule 2401, and a seventh sending submodule 2402; The sub-module 2401 is configured to search for an IP address of the second parsing server that is saved in advance; the seventh sending sub-module 2402 is configured to send a request message for acquiring CBC and/or CBE information to the second parsing server corresponding to the IP address. The request message carries the PLMN ID of the PLMN currently accessed by the user equipment. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Referring to FIG. 25, a hardware architecture diagram of a user equipment according to an embodiment of the present invention includes at least one processor 2501 (eg, a CPU), at least one network interface 2502 or other communication interface, a memory 2503, and at least one communication. Bus 2504 is used to implement connection communication between these devices. The processor 2501 is configured to execute an executable module, such as a computer program, stored in the memory 2503. The memory 2503 may include a high-speed random access memory (RAM), and may also include a non-volatile memory, for example, at least one disk storage device. The communication connection between the system gateway and at least one other network element is implemented by at least one network interface 2502 (which may be wired or wireless), and may use an Internet, a wide area network, a local network, a metropolitan area network, or the like.

The program instructions are executed by the processor 2501. The program instructions include the first sending module 1501 and the first receiving module 1502. The implementation of each module may refer to the corresponding module disclosed in FIG. 15 , and details are not described herein again. The user equipment provided by the embodiment of the present invention can obtain the relevant CBC/CBE information when the UE initially accesses the network or roams to other carrier networks, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the disaster. occur.

Preferably, referring to FIG. 26, a schematic structural diagram of a first embodiment of a user equipment according to the present invention is provided. The user equipment includes: a first obtaining module 2601, configured to acquire a public land mobile network PLMN identifier that is currently accessed. The second obtaining module 2602 is configured to acquire CBC and/or CBE information corresponding to the PLMN identifier. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur. Referring to FIG. 27, a hardware architecture diagram of another user equipment according to an embodiment of the present invention includes at least one processor 2701 (eg, a CPU), at least one network interface 2702 or other communication interface, a memory 2703, and at least one Communication bus 2704 is used to implement connection communication between these devices. The processor 2701 is configured to execute an executable module, such as a computer program, stored in the memory 2703. The memory 2703 may include a random access memory (RAM), and may also include a non-volatile memory, for example, at least one disk saver. The communication connection between the system gateway and at least one other network element is implemented by at least one network interface 2702 (which may be wired or wireless), and may use an Internet, a wide area network, a local area network, a metropolitan area network, or the like.

Executing the program instructions, wherein the program instructions include the first obtaining module 2601 and the second obtaining module 2602; wherein the implementation of each module may refer to the corresponding module disclosed in FIG. 26, and details are not described herein again. In the technical solution of this embodiment, the UE initially accesses the network or roams to other carrier networks. At that time, relevant CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, obtaining a P WS public key, and reducing the occurrence of disaster.

FIG. 28 is a schematic structural diagram of Embodiment 1 of a network side device according to the present invention. The network device includes: a detecting module 2801, configured to detect whether a user equipment corresponding to the access network first enters the network or CBC and The CBE information is updated. The push module 2802 is configured to: when the result of the detecting module is yes, the parsing server corresponding to the access network of the user equipment pushes the CBC and/or CBE information to the user equipment. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Referring to FIG. 29, a hardware architecture diagram of a network side device according to an embodiment of the present invention includes at least one processor 2901 (eg, a CPU), at least one network interface 2902 or other communication interface, a memory 2903, and at least one communication bus. 2904, used to implement connection communication between these devices. The processor 2901 is configured to execute an executable module, such as a computer program, stored in the memory 2903. The memory 2903 may include a random access memory (RAM: Random Access Memory), and may also include a non-volatile memory, for example, at least one disk storage device. The communication connection between the system gateway and at least one other network element is implemented by at least one network interface 2902 (which may be wired or wireless), and may use an Internet, a wide area network, a local area network, a metropolitan area network, or the like.

The program instructions are executed by the processor 2901. The program instructions include the detection module 2801 and the push module 2802. The implementation of each module may refer to the corresponding module disclosed in FIG. 28, and details are not described herein again. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE. Get the PWS public key to reduce the occurrence of disasters.

For example, as shown in FIG. 30, a schematic diagram of a second embodiment of a network side device according to the present invention is provided. The network device includes: a second receiving module 3001, configured to receive a CBC and/or sent by a user equipment. The request message of the CBE information; the second sending module 3002 is configured to send CBC and/or CBE information corresponding to the request message to the user equipment. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . For example, FIG. 31 is a schematic structural diagram of Embodiment 3 of a network side device according to the present disclosure. The network device includes a second receiving module 3001, a first detecting submodule 3101, and an eighth sending submodule 3102. The first detecting sub-module 3101 is configured to detect whether a context of the user equipment exists; and an eighth sending sub-module 3102, configured to: when the result of the first detecting sub-module is negative, the CBC and The CBE information is carried in an attach accept message or a secure mode command message, and an attach request message or a security mode command message carrying the CBC and/or CBE information is sent to the user equipment. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 32, a schematic structural diagram of Embodiment 4 of a network side device according to the present disclosure, where the network device includes a second sending module 3002, a fourth receiving submodule 3201, and a fifth receiving submodule; The fourth receiving submodule 3201 is configured to receive, when the user equipment pre-stores CBC and/or CBE information associated with the public land mobile network identifier PLMN ID of the attached network, the MME or the SGSN or the MSC receives An attach request message sent by the user equipment that carries an indication that does not require CBC and/or CBE information; a fifth receiving submodule, configured to not pre-store and attach the network to the user equipment

In the case of the CBC and/or CBE information associated with the PLMN ID, the MME or the SGSN or the MSC receives an attach request message sent by the user equipment that carries an indication of the required CBC and/or CBE information; then the second sending module 3002, Specifically, the method is: sending, to the user equipment, an attach accept message or a security mode command message that carries the CBC and/or CBE information. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 33, it is a schematic structural diagram of Embodiment 5 of a network side device for acquiring CBC and/or CBE information, where the network device includes a second receiving submodule 3001 and a second detector. a module 3301, a ninth sending submodule 3302, the second detecting submodule 3301, configured to detect, according to the TAU or RAU or LAU request message, whether the user equipment is a roaming user; the ninth sending submodule 3302, And if the result of the second detecting submodule is yes, the CBC and/or CBE information corresponding to the TAU or RAU or LAU request message is carried in the TAU or RAU or LAU accept message, and sent to the user equipment. A TAU or RAU or LAU accept message carrying CBC and/or CBE information. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 34, a schematic structural diagram of Embodiment 6 of a network side device provided by the present invention, where the network device includes a second sending submodule 3002 and a sixth receiving submodule 3401. The seventh receiving submodule 3402 is configured to: when the user equipment pre-stores CBC and/or CBE information associated with the PLMN ID of the attached network, the receiving user equipment sends Carrying a TAU or RAU or LAU request message that does not require an indication of CBC and/or CBE information; the seventh receiving submodule 3402, configured to not pre-store the CBC and the associated CMN and the PLMN ID of the attached network in the user equipment In the case of CBE information, the MME or SGSN or MSC receives a TAU or RAU or LAU request message sent by the user equipment that requires an indication of CBC and/or CBE information. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 35, it is a schematic structural diagram of Embodiment 7 of a network side device for acquiring CBC and/or CBE information, where the network device includes a second sending submodule 3002 and an eighth receiver. The module 3501, the first carrying submodule 3502, the eighth receiving submodule 3501, configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment, where the request message includes a CBC corresponding to the test message. And/or a CBE identifier; the first carrier sub-module 3502, configured to carry the CBC and/or CBE information corresponding to the CBC and/or CBE identifier in a TAU or RAU or LAU accept message. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. .

Preferably, referring to FIG. 36, a schematic structural diagram of Embodiment 8 of a network side device provided by the present invention, where the network device includes a third detecting submodule 3601 and a second carrying submodule 3602, a ninth receiving sub-module 3603; the third detecting sub-module 3601, configured to detect whether the saved identifier of the CBC and/or CBE is different from the identifier of the CBC and/or CBE sent by the user equipment; The second carrying sub-module 3602 is configured to: when the result of the third detecting sub-module is YES, carry the saved CBC and/or CBE information in a TAU or RAU or LAU accept message and send the information to the user equipment. The ninth receiving sub-module 3603 is configured to receive an identifier that the user equipment periodically sends the saved CBC and/or CBE information according to the preset time interval. In the technical solution of the embodiment, the UE initially accesses the network or roams. When you go to other carrier networks, you can obtain relevant CBC/CBE information to establish a secure connection with CBC/CBE and obtain the PWS public key to reduce the occurrence of disasters. Further, the user equipment periodically sends a request for acquiring CBC/CBE information to the network device, and each time, the network device only needs to feed back the updated CBC/CBE information to the user equipment, thereby reducing the number of information transmission and saving. Network resources improve the efficiency of obtaining CBC/CBE information. Preferably, referring to FIG. 37, it is a schematic structural diagram of Embodiment 9 of a network side device according to the present invention. The network device includes a second receiving module 3001, a return submodule 3701, and the return submodule 3701. Returning NAS signaling carrying CBC and/or CBE information and for allocating an IP address to the user equipment, where the NAS signaling is: activating a default evolved packet system EPS bearer context request message in the LTE system, or UMTS or The Activate Packet Data Protocol PDP Context Receive message in the GPRS system. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 38, it is a schematic structural diagram of Embodiment 10 of a network side device provided by the present invention, where the network device includes a second sending module 3002 and a tenth receiving submodule 3801; The tenth receiving submodule 3801 is configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment according to the IP address obtained by the PLMN ID of the user equipment currently accessing the network. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . Preferably, referring to FIG. 39, a schematic structural diagram of Embodiment 11 of the network side device provided by the present invention, where the network device includes a second sending module 3002, an eleventh receiving submodule 3901, and the tenth a receiving sub-module 3901, configured to receive a request message for acquiring CBC and/or CBE information sent by the user equipment according to an IP address of a pre-stored parsing server, where the request message carries a PLMN currently accessed by the user equipment PLMN ID. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the PWS public key, and reducing the occurrence of disasters. . 40 is a hardware architecture diagram of another network side device according to an embodiment of the present invention, including at least one processor 4001 (eg, a CPU), at least one network interface 4001 or other communication interface, a memory 4003, and at least one communication. A bus 4004 is used to implement connection communication between these devices. The processor 4001 is configured to execute an executable module, such as a computer program, stored in the memory 4003. The memory 4003 may include a high-speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory, for example, at least one disk storage device. The communication connection between the system gateway and at least one other network element is implemented by at least one network interface 4002 (which may be wired or wireless), and may use an Internet, a wide area network, a local area network, a metropolitan area network, or the like.

Executing program instructions, wherein the program instructions include a second receiving module 3001 and a second sending module 3002, wherein the implementation of each module may refer to the corresponding module disclosed in FIG. 30, where No longer. In the technical solution of the embodiment, when the UE initially accesses the network or roams to other carrier networks, the related CBC/CBE information can be obtained, thereby establishing a secure connection with the CBC/CBE, acquiring the P WS public key, and reducing the disaster. occur.

The spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request

1. A method for obtaining CBC and/or CBE information, characterized in that it includes: the user equipment sends a request message to obtain the cell broadcast entity CBC and/or cell broadcast center CBE information to the network side equipment; the user equipment receives the network side equipment The returned CBC corresponding to the request message and/or

CBE information.

2. The method of claim 1, wherein the request message is an attach request message, and the network side device is a mobility management entity MME in the Long Term Evolution LTE system, or a universal mobile communications system UMTS or packet The GPRS service support node SGSN in the switched communication technology GPRS system, or the mobile switching center MSC in the global system for mobile communications GSM, then the user equipment receives the CBC and/or CBE corresponding to the request message returned by the network side device Information, including: The user equipment receives an attach accept message or security mode command message carrying CBC and/or CBE information sent by the MME, SGSN or MSC; wherein, the attach accept message or security mode command message is a network side message. A message generated when the device cannot detect the context of the user equipment; The user equipment obtains CBC and/or CBE information from the attach accept message or safe mode command message.

3. The method of claim 1, wherein the request message is an attach request message, and the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an SGSN in a GSM system. MSC, before the user equipment sends a request message to obtain CBC and/or CBE information to the network side equipment, it also includes: the user equipment determines whether the CBC and/or CBE information associated with the public land mobile network identification PLMN ID is pre-stored. ; If yes, then the user equipment sends a request message to obtain CBC and/or CBE information to the network side device, specifically: the user equipment sends a request message carrying no need to An attachment request message indicating CBC and/or CBE information; if not, the user equipment sends a request message to obtain CBC and/or CBE information to the network side device, specifically: the user equipment sends a request message carrying the CBC and/or CBE information to the MME or SGSN or MSC. An attachment request message that requires an indication of CBC and/or CBE information; then the user equipment receives the CBC and the CBC corresponding to the request message returned by the network side device.

/or CBE information, specifically: the user equipment obtains the CBC and/or CBE information by receiving an attach accept message or a safe mode command message returned by the network side.

4. The method of claim 1, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, then in the LTE system The request message is a tracking area update TAU message. In the PS domain of the UMTS system and the GPRS system, the request message is a routing area update RAU message. In the CS domain of the UMTS system and the GSM system, the request message For the location area update LAU request message, the user equipment receives the CBC and/or CBE information corresponding to the request message returned by the network side device, including: the user equipment receives the CBC and/or CBE information sent by the MME or SGSN or MSC carrying the TAU Or TAU or RAU or LAU accept message corresponding to CBC and/or CBE information of RAU or LAU; wherein, the TAU or RAU or LAU accept message is the MME or SGSN or MSC detecting that the user equipment is a roaming user. message generated when; the user equipment obtains the CBC and/or from the TAU or RAU or LAU acceptance message

CBE information.

5. The method of claim 1, wherein the network side device is an MME or UMTS in an LTE system or an SGSN in a GPRS system or an MSC in a GSM system, then the request in the LTE system The message is a TAU message. In the PS domain and GPRS system of the UMTS system, the request message is a RAU message. In the CS domain and GSM system of the UMTS system, the request message is a LAU request message. The user equipment Before sending a TAU or RAU or LAU request message to obtain CBC and/or CBE information to the network side device, also Including: The user equipment determines whether the CBC and/or CBE information associated with the public land mobile network identification PLMN ID has been saved in advance; if not, the user equipment sends a TAU or RAU to obtain the CBC and/or CBE information to the network side device. or LAU request message, specifically: the user equipment sends a TAU or RAU or LAU request message to obtain CBC and/or CBE information to the MME or SGSN or MSC, where the TAU or RAU or LAU request message includes a request to obtain CBC and/or CBE information from the Instructions for MME or SGSN or MSC to obtain CBC and/or CBE information.

6. The method of claim 1, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system. The request message is a TAU message. In the PS domain and GPRS system of the UMTS system, the request message is a RAU message. In the CS domain and GSM system of the UMTS system, the request message is a LAU request message. In the user When the device cannot verify the test message issued by the MME, SGSN or MSC, the user equipment sends a request message to the network side device to obtain CBC and/or CBE information, including: The user equipment sends a request message to the MME, SGSN or MSC to obtain the CBC and/or CBE information. or a TAU, RAU, or LAU request message for CBE information, and the TAU, RAU, or LAU request message includes the CBC and/or CBE identifier corresponding to the test message, so that the MME, SGSN, or MSC will use the CBC and/or CBE identifier. Or the CBC and/or CBE information corresponding to the CBE identifier is carried in the TAU or RAU or LAU acceptance message.

7. The method of claim 1, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, then in the LTE system The request message is a TAU message. In the PS domain and GPRS system of the UMTS system, the request message is a RAU message. In the CS domain and GSM system of the UMTS system, the request message is a LAU request message. The user equipment sends a request message to obtain CBC and/or CBE information to the network side equipment, specifically: the user equipment periodically sends the requested message to the MME or SGSN or MSC according to a preset time interval. The identity of the saved CBC and/or CBE information, so that the MME or SGSN or MSC will use The CBC and/or CBE information corresponding to the identifier of the CBC and/or CBE information sent by the device is carried in the TAU or RAU or LAU acceptance message and sent to the user equipment.

8. The method of claim 1, wherein the user equipment receives the CBC and/or CBE information corresponding to the request message returned by the network side device, including: the user equipment receives the MME or SGSN or The NAS signaling returned by the MSC carries CBC and/or CBE information and is used to allocate IP addresses. The NAS signaling is: activation of the default evolved packet system EPS bearer context request message in the LTE system, or UMTS or GPRS system Activation in the Packet Data Protocol PDP context receives the message.

9. The method of claim 1, wherein the network side device is the first parsing server corresponding to the access network of the user equipment, and the user equipment sends the obtained CBC and /or a request message for CBE information, including: The user equipment obtains the first parsing server's ID based on the PLMN ID of the current access network.

IP address; The user equipment sends a request message for obtaining CBC and/or CBE information to the first parsing server corresponding to the IP address.

10. The method of claim 1, wherein the network side device is a globally unique second parsing server, and the IP address of the second parsing server is pre-stored on the user equipment, then the user The device sends a request message for obtaining CBC and/or CBE information to the network side device, including: the user equipment searches for the IP address of the pre-saved second parsing server; the user equipment sends to the second parsing server corresponding to the IP address to obtain the CBC and/or CBE information. /or a request message for CBE information, where the request message carries the PLMN ID of the PLMN currently accessed by the user equipment.

11. A method for obtaining CBC and/or CBE information, characterized by comprising: the user equipment obtains the PLMN identity of the currently accessed public land mobile network; the user equipment obtains the CBC and/or CBE corresponding to the PLMN identity information.

12. A method for sending CBC and/or CBE information, characterized in that it includes: a parsing server corresponding to the access network of the user equipment detects whether the user equipment has accessed the network for the first time or the cell broadcast entity CBC and/or cell broadcast center CBE information If there is an update, the resolution server corresponding to the access network of the user equipment pushes the CBC and/or CBE information to the user equipment.

13. A method for sending CBC and/or CBE information, characterized in that it includes: the network side device receiving a request message sent by the user equipment to obtain the cell broadcast entity CBC and/or cell broadcast center CBE information; the network side device sends a request message to the user The device sends CBC and/or CBE information corresponding to the request message.

14. The method of claim 13, wherein the request message is an attach request message, and the network side device is an MME in an LTE system, or an SGSN in UMTS or GPRS, or an SGSN in GSM. MSC, before the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, it also includes:

The MME or SGSN or MSC detects whether there is a context for the user equipment. If not, the CBC and/or CBE information is carried in the attachment accept message or the security mode command message; then the network side device sends the user equipment the information related to the user equipment. CBC and/or corresponding to the above request message

CBE information, specifically: the MME or SGSN or MSC sends an attach request message or a security mode command message carrying the CBC and/or CBE information to the user equipment.

15. The method of claim 13, wherein the request message is an attach request message, and the network side device is an MME in an LTE system, or a GPRS service support node SGSN in a UMTS or GPRS system, Or, MSC in GSM, the network side device Receiving a request message sent by the user equipment to obtain CBC and/or CBE information includes: In the case where the user equipment has pre-stored CBC and/or CBE information associated with the public land mobile network identification PLMN ID attached to the network, the The MME or SGSN or MSC receives the attachment request message sent by the user equipment and carries an indication that CBC and/or CBE information is not required; the user equipment does not pre-store the CBC and/or CBE information associated with the PLMN ID of the attachment network. In this case, the MME or SGSN or MSC receives an attach request message sent by the user equipment carrying an indication that CBC and/or CBE information is required; then the network side device sends the CBC and/or corresponding to the request message to the user equipment. or CBE information, specifically: the MME or SGSN or MSC sends an attach accept message or a security mode command message carrying the CBC and/or CBE information to the user equipment.

16. The method of claim 13, wherein the network side device is an MME or SGSN or MSC, then the request message in the LTE system is a TAU message, and in the PS domain and the UMTS system The request message in the GPRS system is a RAU message, and in the CS domain of the UMTS system and the GSM system the request message is an LAU request message, then the network side device sends a CBC corresponding to the request message to the user equipment. and/or CBE information, also include:

The MME or SGSN or MSC detects whether the user equipment is a roaming user according to the TAU or RAU or LAU request message. If so, the CBC and/or CBE information corresponding to the TAU or RAU or LAU request message is carried in TAU or RAU or LAU accepts the message; then the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically: sending the TAU carrying the CBC and/or CBE information to the user equipment. Or RAU or LAU accept the message.

17. The method of claim 13, wherein the network side device is LTE The MME in the system, or the SGSN in the UMTS or GPRS system, or the MSC in the GSM system, then the request message in the LTE system is a TAU message, and the request message in the PS domain of the UMTS system and the GPRS system The request message is a RAU message. In the CS domain of the UMTS system and the GSM system, the request message is a LAU request message. The network side device receives a request message sent by the user equipment to obtain CBC and/or CBE information, including : In the case where the user equipment has pre-stored CBC and/or CBE information associated with the PLMN ID of the attached network, the MME or SGSN or MSC receives an indication sent by the user equipment carrying no CBC and/or CBE information. TAU or RAU or LAU request message; In the case that the user equipment does not pre-store the CBC and/or CBE information associated with the PLMN ID of the attached network, the MME or SGSN or MSC receives the required CBC and/or CBE information sent by the user equipment. or a TAU, RAU, or LAU request message indicating the CBE information, and carry the CBC and/or CBE information in the TAU, RAU, or LAU request message.

18. The method of claim 13, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system. The request message is a TAU message. In the PS domain and GPRS system of the UMTS system, the request message is a RAU message. In the CS domain and GSM system of the UMTS system, the request message is a LAU request message. In the user When the device cannot verify the test message issued by the MME, SGSN or MSC, the network side device receives the request message sent by the user equipment to obtain CBC and/or CBE information, including: The MME, SGSN or MSC receives the request message sent by the user equipment. A request message to obtain CBC and/or CBE information, the request message including the CBC and/or CBE identifier corresponding to the test message; The MME or SGSN or MSC converts the CBC and/or CBE identifier to the corresponding CBC and /or CBE information is carried in the TAU or RAU or LAU acceptance message.

19. The method of claim 13, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system. The request message is a TAU message, in the PS domain of the UMTS system and The request message in the GPRS system is a RAU message. In the CS domain of the UMTS system and the GSM system, the request message is an LAU request message. The network side device receives a message sent by the user equipment to obtain CBC and/or CBE information. The request message is specifically: the MME or SGSN or MSC receives the identification of the saved CBC and/or CBE information periodically sent by the user equipment according to a preset time interval; then the network side device sends the identification of the saved CBC and/or CBE information to the user equipment. CBC and/or CBE information corresponding to the request message, specifically:

The MME or SGSN or MSC detects whether the stored identity of the CBC and/or CBE is different from the identity of the CBC and/or CBE sent by the user equipment. If so, the stored CBC and/or CBE information is carried in the TAU or The RAU or LAU accepts messages sent to the user device.

20. The method of claim 13, wherein the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, including: the MME or SGSN or MSC sends the CBC and/or CBE information corresponding to the request message to the user equipment. Return NAS signaling that carries CBC and/or CBE information and is used to allocate IP addresses. The NAS signaling is: Activating the Default Evolved Packet System EPS Bearer Context Request message in the LTE system, or, in the UMTS or GPRS system Activate the Packet Data Protocol PDP context to receive messages.

21. The method of claim 13, wherein the network side device is the first parsing server corresponding to the access network of the user equipment, and the network side device receives the CBC acquisition message sent by the user equipment. and/or a request message for CBE information, including: the first parsing server receives the user equipment's current access network information according to the user equipment's current access to the network.

If the IP address obtained by the PLMN ID sends a request message to obtain CBC and/or CBE information, then the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically: the first parsing server Send CBC and/or CBE information corresponding to the request message to the user equipment.

22. The method of claim 13, wherein the network side device is a global The only second parsing server, the IP address of the second parsing server is pre-stored on the user equipment, then the network side device receives the request message sent by the user equipment to obtain CBC and/or CBE information, including:

The second parsing server receives a request message for obtaining CBC and/or CBE information sent by the user equipment according to the pre-saved IP address of the parsing server, and the request message carries the PLMN of the PLMN currently accessed by the user equipment. ID, then the network side device sends the CBC and/or CBE information corresponding to the request message to the user equipment, specifically: the second parsing server sends the CBC and/or CBE information corresponding to the request message to the user equipment. CBE information.

23. A user equipment, characterized in that it includes: a first sending module, configured to send a request message for obtaining cell broadcast entity CBC and/or cell broadcast center CBE information to the network side device; a first receiving module, configured to receive CBC and/or CBE information corresponding to the request message returned by the network side device.

24. The user equipment according to claim 23, wherein the request message is an attach request message, and the network side device is a mobility management entity MME in the Long Term Evolution LTE system, or a universal mobile communications system UMTS or If the GPRS service support node SGSN in the packet switching communication technology GPRS system, or the mobile switching center MSC in the global system for mobile communications GSM, the first receiving module includes: a first receiving sub-module, used to receive the MME or carried by SGSN or MSC sent

An attachment acceptance message or a security mode command message of CBC and/or CBE information; wherein the attachment acceptance message or security mode command message is a message generated by the network side device when the context of the user equipment cannot be detected; the first acquisition Submodule, configured for the user equipment to obtain CBC and/or CBE information from the attach accept message or safe mode command message.

25. The user equipment according to claim 23, characterized in that the request message is attached According to the request message, the network side device is the MME in the LTE system, or the SGSN in the UMTS or GPRS system, or the MSC in the GSM system. The first sending module includes: a first judgment sub-module, used for Determine whether the CBC and/or CBE information associated with the public land mobile network identification PLMN ID has been pre-saved; the first sending sub-module is used to send a message to the

The MME or SGSN or MSC sends an attach request message carrying an indication that CBC and/or CBE information is not required; a second sending submodule, configured to send an attach request carrying an indication that CBC and/or CBE information is required to the MME, SGSN or MSC message; The first receiving module is specifically configured to: obtain the CBC and/or CBE information by receiving an attach accept message or a safe mode command message returned by the network side.

26. The user equipment according to claim 23, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, then the LTE system The request message in is a tracking area update TAU message, the request message in the PS domain of the UMTS system and the GPRS system is a routing area update RAU message, and the request in the CS domain of the UMTS system and the GSM system If the message is a location area update LAU request message, the first receiving module includes: a second receiving submodule, configured to receive CBC and/or CBE information sent by the MME or SGSN or MSC carrying the TAU or RAU or LAU. The TAU, RAU, or LAU accept message; wherein, the TAU, RAU, or LAU accept message is a message generated by the MME, SGSN, or MSC when detecting that the user equipment is a roaming user; The second acquisition submodule uses Obtaining CBC and/or CBE information from the TAU, RAU or LAU acceptance message.

27. The user equipment according to claim 23, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, then the LTE The request message in the system is a TAU message. In the PS domain of the UMTS system and the GPRS system, the request message is a RAU message. In the UMTS system The request message in the system's CS domain and GSM system is a LAU request message. The first sending module includes: a second judgment sub-module, used to judge whether the CBC associated with the public land mobile network identification PLMN ID is pre-stored. and/or CBE information; a third sending submodule, configured to send a TAU, RAU, or LAU to obtain CBC and/or CBE information to the MME, SGSN, or MSC if the result of the judgment submodule is no. Request message, wherein the TAU or RAU or LAU request message includes an indication requesting to obtain CBC and/or CBE information from the MME or SGSN or MSC.

28. The user equipment according to claim 23, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system. The request message is a TAU message. In the PS domain and GPRS system of the UMTS system, the request message is a RAU message. In the CS domain and GSM system of the UMTS system, the request message is an LAU request message. When the user equipment cannot verify the test message issued by the MME, SGSN or MSC, the first sending module includes: a fourth sending sub-module, used to send to the MME, SGSN or MSC to obtain the CBC and/or

A TAU, RAU, or LAU request message for CBE information. The TAU, RAU, or LAU request message includes the CBC and/or CBE identifier corresponding to the test message, so that the MME, SGSN, or MSC can send the CBC and/or The CBC and/or CBE information corresponding to the CBE identifier is carried in the TAU, RAU, or LAU acceptance message.

29. The user equipment according to claim 23, wherein the network side device is

The MME in the LTE system, or the SGSN in the UMTS or GPRS system, or the MSC in the GSM system, then the request message in the LTE system is a TAU message, and the request message in the PS domain of the UMTS system and the GPRS system The request message is a RAU message. In the CS domain of the UMTS system and the GSM system, the request message is a LAU request message. The sending module specifically includes: a fifth sending sub-module, used to send a message to the MME or SGSN or MSC. Periodically send the identifier of the saved CBC and/or CBE information at preset time intervals so that the MME or SGSN or When the identifier of the stored CBC and/or CBE information is different from the identifier of the CBC and/or CBE information sent by the user equipment, the MSC will use the CBC and/or corresponding identifier of the CBC and/or CBE information sent by the user equipment. Or the CBE information is carried in the TAU or RAU or LAU acceptance message and sent to the user equipment.

30. The user equipment according to claim 23, characterized in that the first receiving module includes: a third receiving sub-module, configured to receive a message carrying CBC and/or CBE information returned by the MME or SGSN or MSC. And the NAS signaling used to allocate IP addresses, the NAS signaling is: the activation of the default evolved packet system EPS bearer context request message in the LTE system, or the activation of the Packet Data Protocol PDP context reception message in the UMTS or GPRS system.

31. The user equipment according to claim 23, wherein the network side device is the first parsing server corresponding to the access network of the user equipment, then the sending module includes: a third acquisition sub- Module, used to obtain the IP address of the first parsing server based on the PLMN ID of the current access network; The sixth sending sub-module, used to send the obtained IP address to the first parsing server corresponding to the IP address.

Request message for CBC and/or CBE information.

32. The user equipment according to claim 23, wherein the network side device is a globally unique second resolution server, and the IP address of the second resolution server is pre-stored on the user equipment, then the The sending module includes: a search sub-module, used to search for the pre-saved IP address of the second parsing server; a seventh sending sub-module, used to send the obtained CBC and/or CBE information to the second parsing server corresponding to the IP address. The request message carries the PLMN ID of the PLMN currently accessed by the user equipment.

33. A user equipment, characterized in that it includes at least one processor, at least one network interface or other communication interface, memory, and at least one communication bus for realizing connection communication between these devices; wherein, Program instructions for execution by the processor are stored, and the program instructions include a first sending module and a first receiving module; the first sending module is used to send to the network side device to obtain the cell broadcast entity CBC and /or a request message for CBE information of the cell broadcast center; the first receiving module is configured to receive the CBC and/or CBE information corresponding to the request message returned by the network side device.

34. A user equipment, characterized in that it includes: a first acquisition module, used to acquire the PLMN identity of the currently accessed public land mobile network; a second acquisition module, used to acquire the CBC and PLMN corresponding to the PLMN identity. /or CBE information.

35. An acquisition user equipment, characterized in that it includes at least one processor, at least one network interface or other communication interface, memory, and at least one communication bus for realizing connection and communication between these devices; wherein,

Program instructions for execution by the processor are stored, and the program instructions include a first acquisition module and a second acquisition module; the first acquisition module is used to acquire the currently accessed public land mobile network PLMN identity. ; The second acquisition module is used to acquire CBC and/or CBE information based on the corresponding relationship between the pre-stored PLMN identification and CBC and/or CBE information.

36. A network side device, characterized in that it includes: a detection module, used to detect whether the user equipment corresponding to the access network has entered the network for the first time or whether the CBC and/or CBE information has been updated; a push module, used in the detection module results in a yes case, with the user device's The parsing server corresponding to the access network pushes CBC and/or CBE information to the user equipment.

37. A network-side device, including at least one processor, at least one network interface or other communication interface, memory, and at least one communication bus, used to realize connection and communication between these devices; wherein,

Program instructions for execution by the processor are stored, and the program instructions include a detection module and a push module; the detection module is used to obtain the identification of the currently accessed public land mobile network PLMN; the push module, Used to obtain CBC and/or CBE information based on the pre-saved correspondence between the PLMN identifier and CBC and/or CBE information.

38. A network-side device, characterized in that it includes: a second receiving module, configured to receive a request message sent by the user equipment to obtain CBC and/or CBE information; a second sending module, configured to send the requested information to the user equipment. CBC and/or CBE information corresponding to the above request message.

39. The network side device according to claim 38, wherein the request message is an attach request message, and the network side device is an MME or UMTS in the LTE system or an SGSN in GPRS or an MSC in GSM, The second sending module includes: a first detection sub-module, used to detect whether there is a context of the user equipment; an eighth sending sub-module, used when the result of the first detection sub-module is no In this case, the CBC and/or CBE information is carried in the attach accept message or the security mode command message, and the attach request message or the security mode command message carrying the CBC and/or CBE information is sent to the user equipment.

40. The network side device according to claim 38, wherein the request message is an attach request message, and the network side device is an MME in an LTE system, or UMTS or GPRS. The GPRS service support node SGSN in the system, or the MSC in GSM, the second receiving module includes: a fourth receiving sub-module, used to pre-store the public land mobile network identity associated with the attached network in the user equipment In the case of CBC and/or CBE information associated with the PLMN ID, the MME or SGSN or MSC receives an attach request message sent by the user equipment carrying an indication that CBC and/or CBE information is not required; the fifth receiving submodule is used to In the case where the user equipment does not pre-store the CBC and/or CBE information associated with the PLMN ID of the attachment network, the MME or SGSN or MSC receives the attachment sent by the user equipment carrying an indication that CBC and/or CBE information is required. request message; then the second sending module is specifically configured to: send an attach accept message or a security mode command message carrying the CBC and/or CBE information to the user equipment.

41. The network side device according to claim 38, characterized in that, the network side device is an MME or SGSN or MSC, then the request message in the LTE system is a TAU message, and in the PS of the UMTS system If the request message is a RAU message in the domain and GPRS system, and the request message is an LAU request message in the CS domain and GSM system of the UMTS system, then the second sending module includes: a second detection submodule, Used to detect whether the user equipment is a roaming user according to the TAU or RAU or LAU request message; The ninth sending sub-module is used to, if the result of the second detection sub-module is yes, communicate with the TAU or The CBC and/or CBE information corresponding to the RAU or LAU request message is carried in the TAU or RAU or LAU accept message, and the TAU or RAU or LAU accept message carrying the CBC and/or CBE information is sent to the user equipment.

42. The network side device according to claim 38, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, then the The request message in the LTE system is a TAU message, and in the PS domain of the UMTS system and the GPRS system the request message is a RAU message. The request message in the CS domain of the UMTS system and the GSM system is a LAU request message. The second receiving module includes: a sixth receiving submodule, configured to pre-store in the user equipment the PLMN ID associated with the attached network. In the case of CBC and/or CBE information, receive a TAU or RAU or LAU request message sent by the user equipment carrying an indication that CBC and/or CBE information is not required; The seventh receiving submodule is used to receive the TAU or RAU or LAU request message when the user equipment has not previously In the case where the CBC and/or CBE information associated with the PLMN ID of the attached network is saved, the MME or SGSN or MSC receives a TAU or RAU or LAU request message sent by the user equipment indicating that CBC and/or CBE information is required.

43. The network side device according to claim 38, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, and the LTE system The request message is a TAU message, in the PS domain and GPRS system of the UMTS system, the request message is a RAU message, and in the CS domain and GSM system of the UMTS system, the request message is a LAU request message, In the case where the user equipment cannot verify the test message issued by the MME or SGSN or MSC, the second receiving module includes: an eighth receiving sub-module, used to receive a request message sent by the user equipment to obtain CBC and/or CBE information, The request message includes the CBC and/or CBE identifier corresponding to the test message; the first carrying submodule is used to transfer the CBC and/or CBE identifier to the corresponding CBC and/or

CBE information is carried in the TAU or RAU or LAU accept message.

44. The network side device according to claim 38, wherein the network side device is an MME in an LTE system, or an SGSN in a UMTS or GPRS system, or an MSC in a GSM system, and the LTE system The request message is a TAU message, in the PS domain and GPRS system of the UMTS system, the request message is a RAU message, and in the CS domain and GSM system of the UMTS system, the request message is a LAU request message, The second receiving module specifically includes: The ninth receiving sub-module is used to receive the identifier of the saved CBC and/or CBE information sent periodically by the user equipment according to the preset time interval; then the second sending module specifically includes: a third detection sub-module, for detecting whether the stored identity of the CBC and/or CBE is different from the identity of the CBC and/or CBE sent by the user equipment; a second carrying submodule for detecting that the result of the third detection submodule is yes In this case, the saved CBC and/or CBE information is carried in the TAU or RAU or LAU acceptance message and sent to the user equipment.

45. The network side device according to claim 38, characterized in that the second sending module includes: a return submodule, configured to return to the user equipment carrying CBC and/or CBE information and used to allocate IP NAS signaling of the address, where the NAS signaling is: an activation default evolved packet system EPS bearer context request message in an LTE system, or an activation packet data protocol PDP context reception message in a UMTS or GPRS system.

46. The network side device according to claim 38, wherein the network side device is the first parsing server corresponding to the access network of the user equipment, and the second receiving module includes: Nine receiving submodules, configured to receive a request message for obtaining CBC and/or CBE information sent by the user equipment according to the IP address obtained by the PLMN ID of the user equipment currently accessing the network.

47. The network side device according to claim 38, wherein the network side device is a globally unique second parsing server, and the IP address of the second parsing server is pre-stored on the user equipment, then the The second receiving module includes: a tenth receiving sub-module, configured to receive a request message for obtaining CBC and/or CBE information sent by the user equipment according to the pre-saved IP address of the parsing server, where the request message carries the The PLMN ID of the PLMN currently accessed by the user equipment.

48. A network-side device, including at least one processor, at least one network interface or or other communication interfaces, memory, and at least one communication bus, used to realize connection communication between these devices; wherein,

Program instructions for execution by the processor are stored, and the program instructions include a second receiving module and a second sending module; the second receiving module is used to receive the acquisition CBC and/or sent by the user equipment. A request message for CBE information; the second sending module is configured to send the CBC and/or CBE information corresponding to the request message to the user equipment.