CN112153624A - Roaming method and device - Google Patents

Roaming method and device Download PDF

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Publication number
CN112153624A
CN112153624A CN202011099173.5A CN202011099173A CN112153624A CN 112153624 A CN112153624 A CN 112153624A CN 202011099173 A CN202011099173 A CN 202011099173A CN 112153624 A CN112153624 A CN 112153624A
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roaming
terminal
operator
message
data channel
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CN112153624B (en
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张伦泳
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer

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  • Databases & Information Systems (AREA)
  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

The application discloses a roaming method and a roaming device, and belongs to the technical field of communication. The roaming method comprises the following steps: opening a special data channel for the terminal, and receiving a first roaming message sent by the terminal through the special data channel; generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through a special data channel; and receiving a second roaming message broadcast by the terminal in the block chain network corresponding to the transaction roaming operator, achieving roaming transaction with the terminal, providing roaming service for the terminal, providing a roaming mobile communication network which best meets the user requirements for the user, and improving the roaming service experience of the user.

Description

Roaming method and device
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a roaming method and apparatus.
Background
The existing selection method for roaming mobile communication network generally is that the mobile phone automatically selects the roaming mobile communication network with relatively best signal quality, or the home operator directs the roaming mobile phone to the predetermined roaming mobile communication network according to the predetermined rule, or the user manually selects the roaming mobile communication network. Since the roaming mobile communication network with relatively best signal quality or the roaming mobile communication network predetermined by the home operator is not necessarily the network that best meets the user's needs, when the user manually selects the roaming mobile communication network, the user often has blindness due to unfamiliarity with the related information of the roaming mobile communication network, which all results in that the user cannot obtain the best roaming service experience when using the roaming mobile communication network.
Therefore, how to provide a roaming mobile communication network that best meets the user requirements for the user, and improve the roaming service experience of the user becomes a problem to be solved in the field.
Disclosure of Invention
Therefore, the invention provides a roaming method and a roaming device, which are used for solving the problem that a user is difficult to enjoy a roaming mobile communication network which best meets the requirements of the user, so that the roaming service experience of the user is poor.
In order to achieve the above object, a first aspect of the present invention provides a roaming method applied to a roaming operator, the roaming method including:
opening a special data channel for the terminal; the dedicated data channel is a data channel established by the terminal and a candidate roaming operator in a block chain network, and the dedicated data channel and the candidate roaming operator have a corresponding relationship;
receiving a first roaming message sent by the terminal through the dedicated data channel; wherein the first roaming message includes a first roaming service quality parameter required by the terminal;
generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through the dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
receiving a second roaming message broadcast by the terminal in the block chain network corresponding to a transaction roaming operator, achieving roaming transaction with the terminal, and providing roaming service for the terminal; and the second roaming message is a message generated by the terminal according to the first roaming feedback message and determined by the transaction roaming operator.
Further, the opening of the dedicated data channel for the terminal includes:
receiving a third roaming message sent by the terminal; wherein the third roaming message includes an identifier of a blockchain system supported by the terminal, and the number of the blockchain systems is one or more;
determining a matching blockchain system according to the identification of the blockchain system;
establishing a communication connection from the terminal to the matching blockchain system;
returning a reminding message for opening a special data channel to the terminal; wherein the start dedicated data channel alert message includes an identification of the matching blockchain system.
Further, the determining a matching blockchain system according to the identification of the blockchain system includes:
determining the blockchain system supported by the candidate roaming operator and the terminal together according to the identifier of the blockchain system;
selecting one blockchain system from the blockchain systems supported by the candidate roaming operator and the terminal together as the matching blockchain system.
Further, after generating the first roaming feedback message according to the first roaming message and before returning the first roaming feedback message to the terminal through the dedicated data channel, the method further includes:
signing the first roaming feedback message.
Further, the second roaming message is a message generated by the terminal signing the first roaming feedback message;
after receiving the second roaming message broadcasted by the terminal in the blockchain network corresponding to the transaction roaming operator, before the terminal completes a roaming transaction with the terminal and provides a roaming service for the terminal, the method further includes:
verifying a signature of the second roaming message.
Further, after the performing a roaming transaction with the terminal and providing the roaming service to the terminal, the method further includes:
closing the dedicated data channel.
In order to achieve the above object, a second aspect of the present invention provides a roaming method applied to a terminal, the roaming method including:
sending a first roaming message to a candidate roaming operator through a dedicated data channel; the number of the candidate roaming operators is one or more, the dedicated data channel is a data channel established by the terminal and the candidate roaming operators in a block chain network, the dedicated channel and the candidate roaming operators have a corresponding relationship, and the first roaming message includes a first roaming service quality parameter required by the terminal;
receiving a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
determining a transaction roaming operator according to the first roaming feedback message;
and generating a second roaming message based on the first roaming feedback message, broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, achieving a roaming transaction with the transaction roaming operator, and using the roaming service provided by the transaction roaming operator.
Further, before sending the first roaming message to the candidate roaming operator through the dedicated data channel, the method further includes:
sending a third roaming message to the candidate roaming operator, so that the candidate roaming operator determines a matching blockchain system according to the identification of the blockchain system, and establishes a communication connection from the terminal to the matching blockchain system, so as to open the dedicated data channel between the terminal and the candidate roaming operator; wherein the third roaming message includes an identifier of the blockchain system supported by the terminal, and the number of the blockchain systems is one or more;
and receiving a special data channel opening reminding message returned by the candidate roaming operator.
Further, the determining a transaction roaming operator according to the first roaming feedback message includes:
and determining the transaction roaming operator based on the first roaming feedback message according to user selection or user use habits and/or preset roaming parameters.
Further, the generating a second roaming message based on the first roaming feedback message includes:
and signing the first roaming feedback message to generate the second roaming message.
Further, after generating a second roaming message based on the first roaming feedback message and broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, the method further includes:
closing the dedicated data channel.
In order to achieve the above object, a third aspect of the present invention provides a roaming apparatus applied to a roaming operator, the roaming apparatus including:
the operator channel opening module is used for opening a special data channel for the terminal; the dedicated data channel is a data channel established by the terminal and a candidate roaming operator in a block chain network, and the dedicated data channel and the candidate roaming operator have a corresponding relationship;
an operator receiving module, configured to receive a first roaming message sent by the terminal through the dedicated data channel, and receive a second roaming message broadcasted by the terminal in the block chain network corresponding to a transaction roaming operator; the first roaming message comprises a first roaming service quality parameter required by the terminal, and the second roaming message is a message generated after the terminal determines the transaction roaming operator according to the first roaming feedback message;
an operator generating module, configured to generate the first roaming feedback message according to the first roaming message; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
an operator sending module, configured to send the first roaming feedback message to the terminal through the dedicated data channel;
and the operator service module is used for achieving roaming transaction with the terminal and providing roaming service for the terminal.
In order to achieve the above object, a fourth aspect of the present invention provides a roaming apparatus applied to a terminal, the roaming apparatus including:
the terminal sending module is used for sending a first roaming message to the candidate roaming operator through the special data channel; broadcasting a second roaming message in a block chain network corresponding to a transaction roaming operator so as to achieve roaming transaction with the transaction roaming operator; the number of the candidate roaming operators is one or more, the dedicated data channel is a data channel established by the terminal and the candidate roaming operator in the block chain network, the dedicated channel and the candidate roaming operator have a corresponding relationship, and the first roaming message includes a first roaming service quality parameter required by the terminal;
a terminal receiving module, configured to receive a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
the terminal determining module is used for determining a transaction roaming operator according to the first roaming feedback message;
and the terminal generating module is used for generating the second roaming message based on the first roaming feedback message.
The invention has the following advantages:
the roaming method provided by the invention comprises the steps of opening a special data channel for a terminal, and receiving a first roaming message sent by the terminal through the special data channel; generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through a special data channel; and receiving a second roaming message broadcast by the terminal in the block chain network corresponding to the transaction roaming operator, achieving roaming transaction with the terminal, providing roaming service for the terminal, providing a roaming mobile communication network which best meets the user requirements for the user, and improving the roaming service experience of the user.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a flowchart of a roaming method according to a first embodiment of the present invention;
fig. 2 is a flowchart of a roaming method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a roaming method according to a third embodiment of the present invention;
fig. 4 is a flowchart of a roaming method according to a fourth embodiment of the present invention;
fig. 5 is a flowchart of a roaming method according to a fifth embodiment of the present invention;
fig. 6 is a schematic block diagram of a roaming device according to a sixth embodiment of the present invention;
fig. 7 is a schematic block diagram of a roaming apparatus according to a seventh embodiment of the present invention.
In the drawings:
601: the operator channel opening module 602: operator receiving module
603: the operator generation module 604: operator sending module
605: operator service module
701: terminal sending module 702: terminal receiving module
703: terminal determination module 704: terminal generation module
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The roaming method and device provided by the invention considers that when the current terminal selects the roaming mobile communication network, either the terminal automatically selects a roaming mobile communication network having a relatively best signal quality, or the home operator directs the roaming handset to a predetermined roaming mobile communication network according to a predetermined rule, or the user manually selects a roaming mobile communication network, and the roaming mobile communication network selected in the above manner may not be the roaming network that best meets the user's needs, therefore, a new roaming method and device are proposed, after the terminal enters the roaming place, the terminal exchanges the roaming service quality parameter and the roaming charge related information with the roaming operator through the dedicated data channel and reaches the roaming transaction, therefore, the roaming mobile communication network which best meets the user requirements can be provided for the user, and the roaming service experience of the user is improved.
Fig. 1 is a flowchart of a roaming method provided in a first embodiment of the present invention, which is applicable to a roaming operator. As shown in fig. 1, the roaming method may include the following steps:
step S101, opening a special data channel for the terminal.
The special data channel is a data channel established by the terminal and the candidate roaming operator in the block chain network, the special data channel has a corresponding relation with the candidate roaming operator, and the candidate roaming operator is an operator corresponding to the roaming mobile communication network detected by the terminal in the roaming place.
Roaming means that the terminal leaves a service area where it is registered, moves to another service area, and uses a communication function provided by the currently located service area. Roaming can be classified into national roaming and international roaming according to the range of a service area. It will be appreciated that roaming, whether national or international, can only occur between domestic cities where the network formats are compatible and already networked or between regions or countries where bilateral roaming agreements have been signed.
Currently, most roaming mobile communication network selection methods for roaming services are that a terminal automatically selects a roaming mobile communication network with relatively best signal quality, or a home operator directs a roaming handset to a predetermined roaming mobile communication network according to a predetermined rule, or a user manually selects a roaming mobile communication network. Since the roaming mobile communication network with relatively best signal quality or the roaming mobile communication network specified by the home operator is not necessarily the network that best meets the user's needs, when the user manually selects the roaming mobile communication network, the user often has blindness due to unfamiliarity with the related information of the roaming mobile communication network, which all results in that the user cannot obtain the best roaming service experience when using the roaming mobile communication network.
In view of the above, a new roaming method is proposed, in which after a terminal enters a roaming place, a roaming service quality parameter and roaming charge related information are exchanged with a roaming operator through a dedicated data channel, and a roaming transaction is completed with the roaming operator corresponding to a roaming charge that best meets the user's requirements.
It should be noted that, in this embodiment, the execution subject is roaming operator equipment, and in different execution stages, the roaming operator has different identities. Specifically, before the roaming transaction is not concluded with the terminal, the identity of the roaming operator is a candidate roaming operator, and when the roaming operator concludes the roaming transaction with the terminal, the identity of the roaming operator is changed from the candidate roaming operator to the transaction roaming operator. It can be understood that the number of the candidate roaming operators is often more than one, and only one candidate roaming operator can eventually reach the roaming transaction with the terminal to become the transaction roaming operator, so that the remaining candidate roaming operators are no longer candidate roaming operators when the terminal reaches the roaming transaction with the transaction roaming operator, and are recovered to become the common roaming operator.
In one embodiment, after entering a roaming place, the terminal detects a plurality of mobile communication networks in the roaming place, and the plurality of mobile communication networks correspond to a plurality of candidate roaming operators respectively. The terminal simultaneously transmits a third roaming message to a plurality of candidate roaming operators. The third roaming message is a message used by the terminal to initiate a roaming network connection request, the third roaming message includes an identification of the block chain systems supported by the terminal, and the number of the block chain systems supported by the terminal may be one or more. After receiving the third roaming message, the candidate roaming operator learns that the terminal has a roaming network connection request, and selects a block chain system also supported by the candidate roaming operator as a matching block chain system according to the identifier of the block chain system supported by the terminal, opens a dedicated data channel from the terminal to the matching block chain system, and returns a prompt message for opening the dedicated data channel to the terminal, wherein the prompt message for opening the dedicated data channel includes the identifier of the matching block chain system. And the terminal receives the reminding message for starting the special data channel, acquires the identifier of the matched block chain system, and further performs information interaction with the candidate roaming operator through the special data channel. Specifically, the terminal sends the information to the matched blockchain system through the dedicated data channel, and indicates an information receiver (i.e., a candidate roaming operator) in the information, and after the matched blockchain system receives the information sent by the terminal, the information is forwarded to the corresponding information receiver (i.e., a candidate roaming operator); the process of sending information to the terminal by the candidate roaming operator is similar, and is not described herein again.
It is understood that in the present embodiment, the terminal is a node supporting a plurality of blockchain systems.
It should be noted that different candidate roaming operators may select the same blockchain system as the matching blockchain system.
If it is assumed that the terminal detects n roaming mobile communication networks in the roaming place, the n roaming mobile communication networks correspond to n candidate roaming operators; the terminal supports three block chain systems, namely a first block chain system, a second block chain system and a third block chain system, and the identifications of the corresponding block chain systems are respectively C1、C2And C3。
The terminal respectively sends a third roaming message to the n candidate roaming operators, wherein the third roaming message comprises a block chain identifier C1、C2And C3. After the n candidate roaming operators receive the third roaming message, a part of the candidate roaming operators androaming agreement is not signed between home roaming operators of the terminal, so that roaming service cannot be provided for the terminal, and a part of candidate roaming operators do not want to establish roaming transaction with the terminal in the current mode, so that roaming service cannot be provided for the terminal, so that only m candidate roaming operators really respond to the third roaming message to provide roaming service for the terminal; wherein m is less than or equal to n.
Specifically, assume that m is 3, that is, there are three candidate roaming operators responding to the third roaming message, which are the first candidate roaming operator P respectively1A second candidate roaming operator P2And a third candidate roaming operator P3And P is1Identification of the supported blockchain system is C1And C4，P2Identification of the supported blockchain system is C4，P3Identification of the supported blockchain system is C1And C3Wherein, C4Is the identifier corresponding to the fourth blockchain system.
For P1In other words, the blockchain system that is commonly supported with the terminal is the first blockchain system, and thus, P1Dedicated data channel DC for starting terminal and first block chain system for terminal1And returning a reminding message of opening the special data channel to the terminal, wherein the reminding message of opening the special data channel comprises an identifier C of the first block chain system1。
For P2In other words, it has no co-supported blockchain system with the terminal, and thus, P2The terminal cannot be opened with a dedicated data channel, that is, cannot complete a roaming transaction with the terminal to provide a roaming service for the terminal.
For P3In other words, the block chain system which is commonly supported with the terminal includes a first block chain system and a third block chain system, P3One of the blockchain systems can be arbitrarily selected as a matching blockchain system. If P3Selecting the first blockchain system as the matching blockchain system, then P3Dedicated data channel DC for starting terminal and first block chain system for terminal1' and returning an open dedicated data channel alert message to the terminal, whereinThe start dedicated data channel alert message includes an identifier C of the first blockchain system1(ii) a If P3Selecting the third block chain system as the matching block chain system, then P3Special data channel DC for starting terminal and third block chain system for terminal3And returning a special data channel starting reminding message to the terminal, wherein the special data channel starting reminding message comprises an identifier C of the third block chain system3。
It should be noted that different candidate roaming operators may select the same blockchain system as the matching blockchain system. In this embodiment, let P be1And P3The first blockchain system is selected as the matching blockchain system, then P1And P3Respectively open dedicated data channels (including DC) for the terminals to the first blockchain system1And DC1') then the terminal may use DC when sending messages to the first blockchain system1As a direction P1Dedicated data channel for sending messages while using DC1As to P3Dedicated data channels for sending messages, also from DC1And DC1' either one of them is selected as a dedicated data channel, either to P1Or P3The transmitted messages are all transmitted over the selected dedicated data channel. It should be noted that if it is driven from DC1And DC1' either one of them is selected as a dedicated data channel to P1And P3When a message is sent, a receiver of the message needs to be indicated in the sent message, so that when the block chain system corresponding to the dedicated data channel receives the message, the message can be forwarded to the correct receiver.
Step S102, receiving a first roaming message sent by the terminal through the special data channel.
The first roaming message includes a first roaming service quality parameter required by the terminal. Specifically, after the candidate roaming operator opens the dedicated data channel for the terminal, the terminal may send the first roaming service quality parameter required by the terminal to the candidate roaming operator through the dedicated data channel. The first roaming service quality parameter includes the requirement of the terminal on the service quality parameters such as voice packet loss rate, traffic data bandwidth, traffic data packet loss rate and the like.
In one embodiment, the terminal sets a first roaming service quality parameter, sets a roaming transaction for each candidate roaming operator based on the first roaming service quality parameter, generates a corresponding first roaming message based on the roaming transaction, and sends the first roaming message to the candidate roaming operator through a dedicated data channel corresponding to the candidate roaming operator. The candidate roaming operator receives a first roaming message sent by the terminal, so that the terminal is informed of the requirement of reaching roaming transaction with the candidate roaming operator, and the required service quality parameter is the first roaming service quality parameter.
It should be noted that, in the above embodiment, the first roaming qos parameter is set in the roaming transaction, and the transaction can be guaranteed to be executed by using the characteristics of the block chain.
If so, the terminal sets the first roaming service quality parameter to QU(qos require), where q isUThe specific content of (qos requirement) is that the voice packet loss rate is less than or equal to 0.1 per thousand, the traffic data bandwidth is greater than or equal to 3.5Mbps, and the traffic data packet loss rate is less than or equal to 0.5%.
Suppose there are three candidate roaming operators, respectively the first candidate roaming operator P1A second candidate roaming operator P2And a third candidate roaming operator P3And P is1、P2And P3The dedicated data channels opened for the terminal are respectively DC1、DC2And DC3。
The terminal sets a roaming transaction request for each candidate roaming operator respectively. Specifically, the terminal is P1The roaming transaction request is set as T1And T is1＝{[imsi]，[QU(qos requirment)]}; wherein imsi represents an identifier of a terminal; terminal is P2The roaming transaction request is set as T2And T is2＝{[imsi]，[QU(qos requirment)]}; terminal is P3The roaming transaction request is set as T3And T is3＝{[imsi]，[QU(qos requirment)]}。
Terminal according to T1Generating a sum of P1Corresponding first roaming message, and passing through DC1To P1，P1Receiving a first roaming message sent by a terminal; similarly, the terminal is according to T2Generating a sum of P2Corresponding first roaming message, and passing through DC2To P2，P2Receiving a first roaming message sent by a terminal; terminal according to T3Generating a sum of P3Corresponding first roaming message, and passing through DC3To P3，P3And receiving a first roaming message sent by the terminal.
It should be noted that, for the terminal Identity IMSI, it may be an IMSI (International Mobile Subscriber Identity) of the terminal, or may be a hash value of the IMSI. It is understood that SUPI (user Permanent Identifier), SUCI (user hidden Identifier), GPSI (Generic Public user Identifier), GUTI (global Unique Temporary terminal Identifier) or a corresponding hash value may also be used as the terminal Identifier.
Step S103, generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through the dedicated data channel.
Wherein the first roaming feedback message includes a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator.
After the candidate roaming operator receives the first roaming message sent by the terminal, the service quality parameter required by the terminal is obtained according to the first roaming service quality parameter, and the second roaming service quality parameter which can be provided by the candidate roaming operator and the roaming charge corresponding to the second roaming service quality parameter are returned to the terminal. The second roaming service quality parameter may be identical to the first roaming service quality parameter or different from the first roaming service quality parameter, but the second roaming service quality parameter should be a parameter selection that is closest to the first roaming service quality parameter and can be provided by the candidate roaming operator.
In one embodiment, the candidate roaming operator receives a first roaming message sent by the terminal, and obtains a first roaming service quality parameter of the terminal according to the first roaming message, so as to obtain a service quality parameter required by the terminal. On the basis, the candidate roaming operator selects the parameter closest to the first roaming service quality parameter as a second roaming service quality parameter, determines the corresponding roaming charge according to the second roaming service quality parameter, generates a first roaming feedback message based on the second roaming service quality parameter and the roaming charge, and sends the first roaming feedback message to the terminal through a special data channel.
For example, assume that the candidate roaming operator includes a first candidate roaming operator P1A second candidate roaming operator P2And a third candidate roaming operator P3And P is1The roaming transaction request in the received first roaming message is T1，P2The roaming transaction request in the received first roaming message is T2，P3The roaming transaction request in the received first roaming message is T3. In particular, the amount of the solvent to be used,
T1＝{[imsi]，[QU(qos requirment)]}
T2＝{[imsi]，[QU(qos requirment)]}
T3＝{[imsi]，[QU(qos requirment)]}
wherein Q isU(qos requirement) is a first roaming service quality parameter, and the specific content is that the voice packet loss rate is less than or equal to 0.1 ‰, the traffic data bandwidth is greater than or equal to 3.5Mbps, and the traffic data packet loss rate is less than or equal to 0.5%.
For P1In other words, it determines the closest QUThe second roaming quality of service parameter (qos request) is QP1(qos response), and QP1The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1%, the traffic data bandwidth is greater than or equal to 3Mbps, the traffic data packet loss rate is less than or equal to 0.5%, and further, P1Determination of QP1(qos response) Corresponding roaming tariff fP1(service), and fP1The specific content of (service) is 1 yuan per minute of local voice service of roaming place, do not distinguish the caller from the callee; long distance voice service is 3 yuan per minute, and calling and called parties are not distinguished; data traffic is 1 tuple per megabyte. P1According to QP1(qos response) and fP1(service) generating a first roaming feedback message TR1And T isR1＝{[imsi]，[QP1(qos response)，fP1(service)]And transmitting T through a dedicated data channelR1And sending the data to the terminal.
For P2In other words, it determines the closest QUThe second roaming quality of service parameter (qos request) is QP2(qos response), and QP2The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1 ‰, the traffic data bandwidth is greater than or equal to 4Mbps, the traffic data packet loss rate is less than or equal to 0.5%, and further, P2Determination of QP2(qos response) a roaming tariff fP2(service), and fP2The specific content of (service) is 1 yuan per minute of local voice service of roaming place, do not distinguish the caller from the callee; long distance voice service is 3 yuan per minute, and calling and called parties are not distinguished; data traffic is 2-tuple per megabyte. P2According to QP2(qos response) and fP2(service) generating a first roaming feedback message TR2And T isR2＝{[imsi]，[QP2(qos response)，fP2(service)]And transmitting T through a dedicated data channelR2And sending the data to the terminal.
For P3In other words, it can provide the sum QU(qos request) completely consistent second roaming quality of service parameter QP3(qos response)，QP3The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1 ‰, the traffic data bandwidth is greater than or equal to 3.5Mbps, the traffic data packet loss rate is less than or equal to 0.5%, and further, P3Determination of QP3(qos response) a roaming tariff fP3(service), and fP3The specific content of (service) is 2 yuan per minute of local voice service of the calling roaming place, and 1 yuan per minute of local voice service of the called roaming place; the calling long distance voice service is 4 yuan per minute,called long distance voice service 3 yuan per minute; data traffic is 1.5 elements per megabyte. P3According to QP3(qos response) and fP3(service) generating a first roaming feedback message TR3And T isR3＝{[imsi]，[QP3(qos response)，fP3(service)]And transmitting T through a dedicated data channelR3And sending the data to the terminal.
It should be noted that the second roaming service quality parameter may be obtained by modifying the first roaming service quality parameter, or may be generated by the candidate roaming operator according to the first roaming service quality parameter.
Step S104, receiving a second roaming message broadcasted by the terminal in the block chain network corresponding to the transaction roaming operator, achieving roaming transaction with the terminal, and providing roaming service for the terminal.
And the second roaming message is a message which is sent to the block chain system corresponding to the transaction roaming operator after the terminal determines the transaction roaming operator according to the first roaming feedback message. At this time, the terminal only sends the second roaming message to the blockchain system of the candidate roaming operator reaching the transaction intention, and the candidate roaming operator becomes the transaction roaming operator.
In one embodiment, after receiving the first roaming feedback message sent by the plurality of candidate roaming operators, the terminal selects one of the candidate roaming operators as the transaction roaming operator by the user himself or by using the habit and/or the preset roaming parameter of the user. The terminal uses a private key thereof to sign a first roaming feedback message sent by the transaction roaming operator to the terminal to generate a second roaming message, and the second roaming message is broadcasted in the matching block chain system through a special data channel corresponding to the transaction roaming operator. Correspondingly, the transaction roaming operator receives the second roaming message broadcast by the terminal in the matching block chain system, and achieves transaction with the terminal and provides roaming service for the terminal.
For example, assume that the candidate roaming operator includes a first candidate roaming operator P1A second candidate roaming operator P2And third candidate roaming operationQuotient P3The corresponding first roaming feedback messages are T respectivelyR1、TR2And TR3. Wherein the content of the first and second substances,
TR1＝{[imsi]，[QP1(qos response)，fP1(service)]and QP2The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1 per thousand, the traffic data bandwidth is greater than or equal to 3.5Mbps, the traffic data packet loss rate is less than or equal to 0.5 percent, and fP1The specific content of (service) is 1 yuan per minute of local voice service of roaming place, do not distinguish the caller from the callee; long distance voice service is 3 yuan per minute, and calling and called parties are not distinguished; data traffic is 1 tuple per megabyte.
TR2＝{[imsi]，[QP2(qos response)，fP2(service)]And QP2The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1 per thousand, the traffic data bandwidth is greater than or equal to 4Mbps, the traffic data packet loss rate is less than or equal to 0.5 percent, and fP2The specific content of (service) is 1 yuan per minute of local voice service of roaming place, do not distinguish the caller from the callee; long distance voice service is 3 yuan per minute, and calling and called parties are not distinguished; data traffic is 2-tuple per megabyte.
TR3＝{[imsi]，[QP3(qos response)，fP3(service)]And QP3The specific content of (qos response) is that the voice packet loss rate is less than or equal to 0.1 per thousand, the traffic data bandwidth is greater than or equal to 3.5Mbps, the traffic data packet loss rate is less than or equal to 0.5 percent, and fP3The specific content of (service) is 2 yuan per minute of local voice service of the calling roaming place, and 1 yuan per minute of local voice service of the called roaming place; 4 yuan per minute for calling long distance voice service and 3 yuan per minute for called long distance voice service; data traffic is 1.5 elements per megabyte.
The user usage habit is assumed to be that the voice call duration is long, and the requirement on data traffic is not high. Comparing roaming service quality parameters provided by each candidate roaming operator with corresponding roaming tariffs to determine a transaction operator, specifically P1、P2And P3Has the same packet loss rate, but P3Roaming voice service charging of P1And P2High, considering that the user may use the voice call for a long time, first, it isReject P3From P1And P2Further selecting a transaction roaming operator; p2To compare P1Has a high traffic data bandwidth of P2The data flow service charge is also higher than P1High, considering that the user has low requirement for data traffic, therefore, P is selected1As a transaction roaming operator. Further, the terminal uses its private key pair TR1Signing, generating a second roaming message, and passing through P1Corresponding private data channel transmits the second roaming message in P1And broadcasting in the corresponding block chain network. P1Receiving the second roaming message to complete the roaming transaction with the terminal, so that P1And providing the roaming service to the terminal according to the second roaming service parameter and the roaming charge agreed by the roaming transaction.
It should be noted that, as long as the terminal broadcasts the second roaming message in the blockchain network corresponding to the transaction roaming operator, it means that the terminal and the transaction roaming operator complete the roaming transaction. Specifically, the second roaming message is a message generated after the terminal signs the first roaming feedback message (in another embodiment, the terminal may also indicate its identity in other manners), the first roaming feedback message is a message sent by the transaction roaming operator to the terminal, and the first roaming feedback message includes a signature of the transaction roaming operator (similarly, in another embodiment, the transaction roaming operator may also use other information that can prove the identity of the transaction roaming operator), the node in the block chain network receives the second roaming message broadcast by the terminal, and the roaming transaction is determined to be established by verifying the signatures of the terminal and the transaction roaming operator in the second roaming message. In some special cases, even if the single party of the transaction roaming operator does not approve the roaming transaction, the transaction roaming operator still needs to execute the roaming transaction as long as most nodes (the number of the nodes can be specified by a preset threshold value and the like) in the block chain network verify the second roaming message to determine that the roaming transaction between the terminal and the transaction roaming operator is valid, and the transaction roaming operator does not want to transfer the nodes by the single party.
Fig. 2 is a flowchart of a roaming method provided in a second embodiment of the present invention, which is applicable to a roaming operator, and is substantially the same as the first embodiment of the present invention except that: the transaction roaming operator establishes roaming transaction with the terminal, and closes the special data channel after providing roaming service for the terminal. As shown in fig. 2, the roaming method may include the following steps:
step S201, a dedicated data channel is opened for the terminal.
Step S201 in this embodiment is the same as step S101 in the first embodiment of the present invention, and is not described herein again.
Step S202, receiving a first roaming message sent by the terminal through the dedicated data channel.
Step S202 in this embodiment is the same as step S102 in the first embodiment of the present invention, and is not described herein again.
Step S203, generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through the dedicated data channel.
Step S203 in this embodiment is the same as step S103 in the first embodiment of the present invention, and is not described herein again.
Step S204, receiving a second roaming message broadcasted by the terminal in the blockchain network corresponding to the transaction roaming operator, and completing a roaming transaction with the terminal, and providing a roaming service for the terminal.
Step S204 in this embodiment is the same as step S104 in the first embodiment of the present invention, and is not described herein again.
Step S205, close the dedicated data channel.
After the terminal and the transaction roaming operator reach roaming transaction, the transaction roaming operator opens a roaming communication data channel for the terminal, and the current dedicated data channel can be closed.
In one embodiment, after the transaction roaming operator completes a roaming transaction with the terminal, a roaming communication data channel is opened for the terminal, so as to provide a roaming service for the terminal. At this time, the transaction roaming operator may actively close the dedicated data channel opened for the terminal.
It should be noted that the dedicated data channel includes multiple closing modes. For example, the terminal may also actively close the dedicated data channel. Specifically, the terminal may have a plurality of dedicated data channels, which are respectively opened by corresponding candidate roaming operators. After the terminal has reached a roaming transaction with a candidate roaming operator (i.e., a transaction roaming operator), the terminal may actively close all its dedicated data channels.
Fig. 3 is a flowchart of a roaming method according to a third embodiment of the present invention, which can be applied to a terminal. As shown in fig. 3, the roaming method may include the following steps:
step S301, a first roaming message is sent to the candidate roaming operator through the dedicated data channel.
The number of the candidate roaming operators is one or more, the dedicated data channel is a data channel established by the terminal and the candidate roaming operators in the block chain network, the dedicated channel and the candidate roaming operators have a corresponding relationship, and the first roaming message includes a first roaming service quality parameter required by the terminal.
In one embodiment, the terminal sets a first roaming service quality parameter, generates a corresponding first roaming message for each candidate roaming operator based on the first roaming service quality parameter, and sends the first roaming message to the candidate roaming operator through a dedicated data channel corresponding to the candidate roaming operator. The candidate roaming operator receives a first roaming message sent by the terminal, so as to acquire a first roaming service quality parameter required by the terminal.
Step S302, receiving a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel.
Wherein the first roaming feedback message includes a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator.
In one embodiment, the candidate roaming operator receives a first roaming message sent by the terminal, and obtains a first roaming service quality parameter of the terminal according to the first roaming message, so as to obtain a service quality parameter required by the terminal. On the basis, the candidate roaming operator selects the service parameter completely consistent with the first roaming service quality parameter as the second roaming service quality parameter, or selects the service parameter closest to the first roaming service quality parameter as the second roaming service quality parameter when the service parameter completely consistent with the first roaming service quality parameter can not be provided, determines the corresponding roaming charge according to the second roaming service quality parameter, generates a first roaming feedback message based on the second roaming service quality parameter and the roaming charge, and sends the first roaming feedback message to the terminal through a special data channel. The terminal receives a first roaming feedback message returned by the candidate roaming operator.
It can be understood that, when the number of candidate roaming operators is plural, the number of first roaming feedback messages received by the terminal is also plural.
Step S303, determining a transaction roaming operator according to the first roaming feedback message.
In one embodiment, after receiving the first roaming feedback message sent by the plurality of candidate roaming operators, the terminal selects one of the candidate roaming operators as the transaction roaming operator by the user himself or by using the habit and/or the preset roaming parameter of the user.
If the terminal displays the first roaming feedback message on the screen for the user to check, the user determines that the roaming service quality parameter and the roaming charge corresponding to a certain first roaming feedback message best meet the user requirement, and the user manually selects the first roaming feedback message, then the candidate roaming operator corresponding to the first roaming feedback message becomes the transaction roaming operator. For another example, the terminal broadcasts the first roaming feedback message to the user in a voice mode, and the user selects a proper transaction roaming operator according to the broadcasted first roaming feedback message. For another example, the terminal removes the messages which do not accord with the preset roaming parameters in the first roaming feedback message, and selects the transaction roaming operator from the rest first roaming feedback messages according to the use habits of the user.
Step S304, generating a second roaming message based on the first roaming feedback message, broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, reaching a roaming transaction with the transaction roaming operator, and using the roaming service provided by the transaction roaming operator.
In one embodiment, after determining the transaction roaming operator, the terminal signs a first roaming feedback message sent by the transaction roaming operator to the terminal by using a private key of the terminal to generate a second roaming message, and broadcasts the second roaming message in a block chain network corresponding to the transaction roaming operator, thereby achieving a roaming transaction with the transaction roaming operator. And the transaction roaming operator receives a second roaming message sent by the terminal and provides roaming service for the terminal.
Fig. 4 is a flowchart of a roaming method provided in a fourth embodiment of the present invention, which is applicable to a terminal and is substantially the same as the third embodiment of the present invention except that: before sending the first roaming message to the candidate roaming operator, the terminal requests the candidate roaming operator to open a dedicated data channel for the terminal. As shown in fig. 4, the roaming method may include the following steps:
step S401, sending a third roaming message to the candidate roaming operator.
The third roaming message includes an identifier of a blockchain system supported by the terminal, and the number of blockchain systems is one or more.
Before the terminal sends the first roaming message to the candidate roaming operator through the private data channel, the candidate roaming operator needs to open the private data channel for the terminal. The terminal and the candidate roaming operator exchange information such as roaming service quality parameters, roaming charge and the like through a special data channel, so that the terminal selects a transaction roaming operator from a plurality of candidate roaming operators and achieves roaming transaction with the transaction roaming operator.
In one embodiment, after the terminal enters the roaming place, a plurality of mobile communication networks are detected in the roaming place, and the plurality of mobile communication networks correspond to a plurality of candidate roaming operators respectively. The terminal simultaneously transmits a third roaming message to a plurality of candidate roaming operators. The third roaming message is a message used by the terminal to initiate a roaming network connection request, the third roaming message includes an identification of the block chain systems supported by the terminal, and the number of the block chain systems supported by the terminal may be one or more.
Step S402, receiving the reminding message of opening the special data channel returned by the candidate roaming operator.
In one embodiment, after receiving the third roaming message, the candidate roaming operator learns that the terminal has a roaming network connection request, and selects a block chain system also supported by the candidate roaming operator as a matching block chain system according to an identifier of the block chain system supported by the terminal, and opens a dedicated data channel from the terminal to the matching block chain system, and returns a notification message for opening the dedicated data channel to the terminal. Wherein the start dedicated data channel alert message includes an identification of the matching blockchain system. The terminal receives the reminding message of opening the special data channel, acquires the identification of the matching block chain system, further sends the message to the matching block chain system through the special data channel opened by the candidate roaming operator, and the matching block chain system forwards the message to the corresponding candidate roaming operator.
Step S403, sending a first roaming message to the candidate roaming operator through the dedicated data channel.
Step S403 in this embodiment is the same as step S301 in the first embodiment of the present invention, and is not described herein again.
Step S404, receiving a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel.
Step S404 in this embodiment is the same as step S302 in the first embodiment of the present invention, and is not described herein again.
Step S405, determining a transaction roaming operator according to the first roaming feedback message.
Step S405 in this embodiment is the same as step S303 in the first embodiment of the present invention, and is not described herein again.
Step S406, generating a second roaming message based on the first roaming feedback message, broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, completing a roaming transaction with the transaction roaming operator, and using the roaming service provided by the transaction roaming operator.
Step S406 in this embodiment is the same as step S304 in the first embodiment of the present invention, and is not described herein again.
Fig. 5 is a flowchart of a roaming method provided by a fifth embodiment of the present invention, which is applicable to a terminal and is substantially the same as the third embodiment of the present invention except that: the terminal establishes roaming transaction with the transaction roaming operator, and closes the special data channel after enjoying the roaming service provided by the transaction roaming operator. As shown in fig. 5, the roaming method may include the following steps:
step S501, a first roaming message is sent to a candidate roaming operator through a dedicated data channel.
Step S501 in this embodiment is the same as step S301 in the first embodiment of the present invention, and is not described herein again.
Step S502, receiving a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel.
Step S502 in this embodiment is the same as step S302 in the first embodiment of the present invention, and is not described herein again.
Step S503, determining a transaction roaming operator according to the first roaming feedback message.
Step S503 in this embodiment is the same as step S303 in the first embodiment of the present invention, and is not described herein again.
Step S504 is to generate a second roaming message based on the first roaming feedback message, broadcast the second roaming message in the blockchain network corresponding to the transaction roaming operator, reach a roaming transaction with the transaction roaming operator, and use the roaming service provided by the transaction roaming operator.
Step S504 in this embodiment is the same as step S304 in the first embodiment of the present invention, and is not described herein again.
Step S505, close the dedicated data channel.
After the terminal and the transaction roaming operator reach roaming transaction, the transaction roaming operator opens a roaming communication data channel for the terminal, and a special data channel of the terminal can be closed.
In one embodiment, it is assumed that there are multiple candidate roaming operators that open dedicated data channels for the terminal. After the terminal has reached a roaming transaction with a certain candidate roaming operator (i.e., a transaction roaming operator), the terminal may actively close all its dedicated data channels, and send a warning message for giving up network connection to the corresponding candidate roaming operator.
It should be noted that there are many ways of closing the dedicated data channel. For example, the dedicated data channel may be actively closed by the roaming operator, and specifically, when the terminal establishes a roaming transaction with the transaction roaming operator, the transaction roaming operator opens the roaming communication data channel for the terminal, and the transaction roaming operator may actively close the dedicated data channel that is opened for the terminal. For another example, after the terminal and the transaction roaming operator reach roaming transaction, the terminal first sends a reminding message of abandoning network connection to the remaining candidate roaming operators, and after the candidate roaming operator receives the reminding message of abandoning network connection, the candidate roaming operator actively closes the dedicated data channel opened for the terminal. For another example, when a terminal sends a second roaming message to a transaction roaming operator through a dedicated data channel, the second roaming message is sent to the matching blockchain system through the dedicated data channel opened by the transaction roaming operator for the terminal, and then the matching blockchain system forwards the second roaming message to the transaction roaming operator. And the candidate roaming operator knows that the terminal and the transaction roaming operator reach roaming transaction after sending the second roaming message to the transaction roaming operator from the matching block chain system, and the candidate roaming operator can actively close the special data channel opened for the terminal by the candidate roaming operator.
The steps of the above methods are divided for clarity, and the implementation may be combined into one step or split some steps, and the steps are divided into multiple steps, so long as the same logical relationship is included, which are all within the protection scope of the present patent; it is within the scope of the patent to add insignificant modifications to the algorithms or processes or to introduce insignificant design changes to the core design without changing the algorithms or processes.
Fig. 6 is a schematic block diagram of a roaming apparatus according to a sixth embodiment of the present invention, which is applicable to a roaming operator. As shown in fig. 6, the roaming apparatus includes: an operator channel opening module 601, an operator receiving module 602, an operator generating module 603, an operator sending module 604, and an operator service module 605.
The operator channel opening module 601 is configured to open a dedicated data channel for the terminal.
In one embodiment, after entering a roaming place, the terminal detects a plurality of mobile communication networks in the roaming place, and the plurality of mobile communication networks correspond to a plurality of candidate roaming operators respectively. The terminal simultaneously transmits a third roaming message to a plurality of candidate roaming operators. The third roaming message is a message used by the terminal to initiate a roaming network connection request, the third roaming message includes an identification of the block chain systems supported by the terminal, and the number of the block chain systems supported by the terminal may be one or more. After receiving the third roaming message, the candidate roaming operator learns that the terminal has a roaming network connection request, selects a block chain system also supported by the candidate roaming operator as a matching block chain system according to the identifier of the block chain system supported by the terminal, opens a dedicated data channel from the terminal to the matching block chain system through the operator channel opening module 601, and returns a prompt message for opening the dedicated data channel to the terminal, wherein the prompt message for opening the dedicated data channel includes the identifier of the matching block chain system. And the terminal receives the reminding message for starting the special data channel, acquires the identifier of the matched block chain system, and further performs information interaction with the candidate roaming operator through the special data channel. Specifically, the terminal sends the information to the matched blockchain system through the dedicated data channel, and indicates an information receiver (i.e., a candidate roaming operator) in the information, and after the matched blockchain system receives the information sent by the terminal, the information is forwarded to the corresponding information receiver (i.e., a candidate roaming operator); the process of sending information to the terminal by the candidate roaming operator is similar, and is not described herein again.
An operator receiving module 602, configured to receive the first roaming message and the second roaming message sent by the terminal through the dedicated data channel.
In the first embodiment, the terminal sets a first roaming service quality parameter, generates a corresponding first roaming message for each candidate roaming operator based on the first roaming service quality parameter, and sends the first roaming message to the candidate roaming operator through a dedicated data channel corresponding to the candidate roaming operator. The candidate roaming operator receives the first roaming message sent by the terminal through the operator receiving module 602, so as to obtain the first roaming service quality parameter required by the terminal.
In a second embodiment, after receiving the first roaming feedback message sent by the plurality of candidate roaming operators, the terminal selects one of the candidate roaming operators as the transaction roaming operator by the user himself or by using the habit and/or the preset roaming parameter of the user. The terminal signs the first roaming feedback message sent by the transaction roaming operator to the terminal by using a private key of the terminal to generate a second roaming message, and broadcasts the second roaming message in a block chain network corresponding to the transaction roaming operator to achieve roaming transaction with the transaction roaming operator. Correspondingly, the transaction roaming operator receives the second roaming message sent by the terminal through the operator receiving module 602, and provides the roaming service for the terminal.
The operator generating module 603 is configured to generate a first roaming feedback message according to the first roaming message.
In one embodiment, the candidate roaming operator receives a first roaming message sent by the terminal, and obtains a first roaming service quality parameter of the terminal according to the first roaming message, so as to obtain a service quality parameter required by the terminal. On this basis, the candidate roaming operator selects the parameter closest to the first roaming service quality parameter as the second roaming service quality parameter, determines the corresponding roaming charge according to the second roaming service quality parameter, and generates the first roaming feedback message through the operator generating module 603 based on the second roaming service quality parameter and the roaming charge.
An operator sending module 604, configured to send the first roaming feedback message to the terminal through a dedicated data channel.
In one embodiment, the operator sends the first roaming feedback message to the matching blockchain system through the operator sending module 604, and the matching blockchain system forwards the first roaming feedback message to the terminal through the dedicated data channel.
The operator service module 605 is configured to complete a roaming transaction with the terminal and provide a roaming service for the terminal.
In one embodiment, the terminal broadcasts the second roaming message in the blockchain network corresponding to the transaction roaming operator, that is, the terminal and the transaction roaming operator are agreed on the roaming transaction. After the candidate roaming operator receives the second roaming message broadcast by the terminal, the candidate roaming operator becomes the transaction operator, and provides the roaming service for the terminal through the operator service module 605.
Fig. 7 is a schematic block diagram of a roaming apparatus according to a seventh embodiment of the present invention, which is applicable to a terminal. As shown in fig. 7, the roaming apparatus includes: a terminal sending module 701, a terminal receiving module 702, a terminal determining module 703 and a terminal generating module 704.
A terminal sending module 701, configured to send a first roaming message to a candidate roaming operator through a dedicated data channel; and sending the second roaming message to the transaction roaming operator through a special data channel corresponding to the transaction roaming operator.
In the first embodiment, the terminal sets a first roaming service quality parameter, generates a corresponding first roaming message for each candidate roaming operator based on the first roaming service quality parameter, and sends the first roaming message to the candidate roaming operator through a dedicated data channel corresponding to the candidate roaming operator by using the terminal sending module 701. The candidate roaming operator receives a first roaming message sent by the terminal, so as to acquire a first roaming service quality parameter required by the terminal.
In the second embodiment, after determining the transaction roaming operator, the terminal signs the first roaming feedback message sent by the transaction roaming operator to generate a second roaming message, and broadcasts the second roaming message in the blockchain network corresponding to the transaction roaming operator through the terminal sending module 701. And the transaction roaming operator receives a second roaming message broadcast by the terminal and provides roaming service for the terminal.
A terminal receiving module 702, configured to receive a first roaming feedback message returned by a candidate roaming operator through a corresponding dedicated data channel.
In one embodiment, the candidate roaming operator receives a first roaming message sent by the terminal, and obtains a first roaming service quality parameter of the terminal according to the first roaming message, so as to obtain a service quality parameter required by the terminal. On the basis, the candidate roaming operator selects the service parameter completely consistent with the first roaming service quality parameter as the second roaming service quality parameter, or selects the service parameter closest to the first roaming service quality parameter as the second roaming service quality parameter when the service parameter completely consistent with the first roaming service quality parameter can not be provided, determines the corresponding roaming charge according to the second roaming service quality parameter, generates a first roaming feedback message based on the second roaming service quality parameter and the roaming charge, and sends the first roaming feedback message to the terminal through a special data channel. The terminal receives a first roaming feedback message returned by the candidate roaming operator through the terminal receiving module 702.
A terminal determining module 703, configured to determine a transaction roaming operator according to the first roaming feedback message.
In one embodiment, after the terminal receives the first roaming feedback message sent by the multiple candidate roaming operators, the terminal selects one of the multiple candidate roaming operators as the transaction roaming operator by the terminal determination module 703 or by the usage habit and/or the preset roaming parameters of the user.
A terminal generating module 704, configured to generate a second roaming message based on the first roaming feedback message.
In one embodiment, after determining the transaction roaming operator, the terminal signs a first roaming feedback message sent by the transaction roaming operator to the terminal using its private key to generate a second roaming message.
It should be noted that each module referred to in this embodiment is a logical module, and in practical applications, one logical unit may be one physical unit, may be a part of one physical unit, and may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, elements that are not so closely related to solving the technical problems proposed by the present invention are not introduced in the present embodiment, but this does not indicate that other elements are not present in the present embodiment.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.

Claims (13)

1. A roaming method, comprising:
opening a special data channel for the terminal; the dedicated data channel is a data channel established by the terminal and a candidate roaming operator in a block chain network, and the dedicated data channel and the candidate roaming operator have a corresponding relationship;
receiving a first roaming message sent by the terminal through the dedicated data channel; wherein the first roaming message includes a first roaming service quality parameter required by the terminal;
generating a first roaming feedback message according to the first roaming message, and returning the first roaming feedback message to the terminal through the dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
receiving a second roaming message broadcast by the terminal in the block chain network corresponding to a transaction roaming operator, achieving roaming transaction with the terminal, and providing roaming service for the terminal; and the second roaming message is a message generated by the terminal after determining the transaction roaming operator according to the first roaming feedback message.
2. The roaming method of claim 1, wherein the opening a dedicated data channel for the terminal comprises:
receiving a third roaming message sent by the terminal; wherein the third roaming message includes an identifier of a blockchain system supported by the terminal, and the number of the blockchain systems is one or more;
determining a matching blockchain system according to the identification of the blockchain system;
establishing a communication connection from the terminal to the matching blockchain system;
returning a reminding message for opening a special data channel to the terminal; wherein the start dedicated data channel alert message includes an identification of the matching blockchain system.
3. The roaming method of claim 2, wherein determining a matching blockchain system based on the identification of the blockchain system comprises:
determining the blockchain system supported by the candidate roaming operator and the terminal together according to the identifier of the blockchain system;
selecting one blockchain system from the blockchain systems supported by the candidate roaming operator and the terminal together as the matching blockchain system.
4. The roaming method of claim 1, wherein after the generating the first roaming feedback message according to the first roaming message and before returning the first roaming feedback message to the terminal through the dedicated data channel, further comprising:
signing the first roaming feedback message.
5. The roaming method of claim 1, wherein the second roaming message is a message generated by the terminal signing the first roaming feedback message;
after receiving the second roaming message broadcasted by the terminal in the blockchain network corresponding to the transaction roaming operator, before the terminal completes a roaming transaction with the terminal and provides a roaming service for the terminal, the method further includes:
verifying a signature of the second roaming message.
6. The roaming method of claim 1, wherein after the entering of the roaming transaction with the terminal and the provision of the roaming service for the terminal, further comprising:
closing the dedicated data channel.
7. A roaming method, comprising:
sending a first roaming message to a candidate roaming operator through a dedicated data channel; the number of the candidate roaming operators is one or more, the dedicated data channel is a data channel established by the terminal and the candidate roaming operators in a block chain network, the dedicated channel and the candidate roaming operators have a corresponding relationship, and the first roaming message includes a first roaming service quality parameter required by the terminal;
receiving a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
determining a transaction roaming operator according to the first roaming feedback message;
and generating a second roaming message based on the first roaming feedback message, broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, achieving a roaming transaction with the transaction roaming operator, and using the roaming service provided by the transaction roaming operator.
8. The roaming method of claim 7, wherein before sending the first roaming message to the candidate roaming operator via the dedicated data channel, further comprising:
sending a third roaming message to the candidate roaming operator, so that the candidate roaming operator determines a matching blockchain system according to the identification of the blockchain system, and establishes a communication connection from the terminal to the matching blockchain system, so as to open the dedicated data channel between the terminal and the candidate roaming operator; wherein the third roaming message includes an identifier of the blockchain system supported by the terminal, and the number of the blockchain systems is one or more;
and receiving a special data channel opening reminding message returned by the candidate roaming operator.
9. The roaming method of claim 7, wherein determining a transaction roaming operator based on the first roaming feedback message comprises:
and determining the transaction roaming operator based on the first roaming feedback message according to user selection or user use habits and/or preset roaming parameters.
10. The roaming method of claim 7, wherein the generating a second roaming message based on the first roaming feedback message comprises:
and signing the first roaming feedback message to generate the second roaming message.
11. The roaming method of claim 7, wherein after generating the second roaming message based on the first roaming feedback message and broadcasting the second roaming message in the blockchain network corresponding to the transaction roaming operator, further comprising:
closing the dedicated data channel.
12. A roaming device, comprising:
the operator channel opening module is used for opening a special data channel for the terminal; the dedicated data channel is a data channel established by the terminal and a candidate roaming operator in a block chain network, and the dedicated data channel and the candidate roaming operator have a corresponding relationship;
an operator receiving module, configured to receive a first roaming message sent by the terminal through the dedicated data channel, and receive a second roaming message broadcasted by the terminal in the block chain network corresponding to a transaction roaming operator; the first roaming message comprises a first roaming service quality parameter required by the terminal, and the second roaming message is a message generated after the terminal determines the transaction roaming operator according to the first roaming feedback message;
an operator generating module, configured to generate the first roaming feedback message according to the first roaming message; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
an operator sending module, configured to send the first roaming feedback message to the terminal through the dedicated data channel;
and the operator service module is used for achieving roaming transaction with the terminal and providing roaming service for the terminal.
13. A roaming device, comprising:
the terminal sending module is used for sending a first roaming message to the candidate roaming operator through the special data channel; broadcasting a second roaming message in a block chain network corresponding to a transaction roaming operator so as to achieve roaming transaction with the transaction roaming operator; the number of the candidate roaming operators is one or more, the dedicated data channel is a data channel established by the terminal and the candidate roaming operator in the block chain network, the dedicated channel and the candidate roaming operator have a corresponding relationship, and the first roaming message includes a first roaming service quality parameter required by the terminal;
a terminal receiving module, configured to receive a first roaming feedback message returned by the candidate roaming operator through the corresponding dedicated data channel; wherein the first roaming feedback message comprises a second roaming service quality parameter and a roaming charge which can be provided by the candidate roaming operator;
the terminal determining module is used for determining a transaction roaming operator according to the first roaming feedback message;
and the terminal generating module is used for generating the second roaming message based on the first roaming feedback message.
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