CN107172666B - Method and device for keeping local service of mobile terminal when switching communication cell - Google Patents
Method and device for keeping local service of mobile terminal when switching communication cell Download PDFInfo
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- CN107172666B CN107172666B CN201710294341.8A CN201710294341A CN107172666B CN 107172666 B CN107172666 B CN 107172666B CN 201710294341 A CN201710294341 A CN 201710294341A CN 107172666 B CN107172666 B CN 107172666B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
Abstract
The invention relates to a method for keeping local service when a mobile terminal switches a communication cell, which comprises the following steps: monitoring command interaction between the communication cell base station and a core network through source MEC equipment, and obtaining cell switching information from a communication cell switching command in the communication cell base station and the core network; judging whether a target communication cell to be switched to is managed by the source MEC equipment, if so, updating the attribute of local connection of the mobile terminal corresponding to the communication cell switching instruction, and keeping the local connection; otherwise, generating a local service reestablishment message, and sending the message to the target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell. The invention also relates to a device for realizing the method. The method and the device for keeping the local service of the mobile terminal when the mobile terminal switches the communication cell have the following beneficial effects: the method can ensure the continuity of the local service when the user moves, and has simple operation and less time consumption.
Description
Technical Field
The present invention relates to the field of wireless data communication, and more particularly, to a method and apparatus for maintaining local services of a mobile terminal when the mobile terminal switches communication cells.
Background
With the development of mobile communication technology, more and more business demands, such as ultra-clear video, virtual reality, internet of vehicles, industrial control, enterprise office, etc., are emerging for implementation on mobile terminals. These new services put higher demands on both the rate and the delay of the Mobile communication system, and Mobile Edge Computing (MEC) technology is in the process. The MEC can provide the IT service and cloud computing function required by the telecommunication user nearby by using the wireless access network, so as to create a telecommunication service environment with high performance, low delay and high bandwidth, accelerate the rapid downloading of various contents, services and applications in the network, and enable the consumer to enjoy high-quality network experience. The local breakout service is an important application of the MEC technology, and in this scenario, the user's demand can be directly accessed to the local network through the MEC according to a certain policy without passing through the core network. In this way, the user shortens the forwarding path, and can obtain experience with high bandwidth and low time delay, and the telecom operator can reduce investment on the core network and the bearer network and obtain additional return.
A typical networking of the MEC device, the local network and the core network is that the MEC device is connected with a base station and is connected with the core network through a backhaul network; meanwhile, from another aspect, the MEC device is also connected to a local network. And when the MEC equipment receives the uplink and downlink messages sent by the base station and the core network, shunting the specific messages to the local network according to a predefined matching rule. An important feature of a mobile terminal is that it may be in constant motion, which involves a handover of the communication cell. In a conventional mobile communication system, there is a mature protocol for ensuring service continuity of a user while moving, i.e. a communication cell switching technology. However, the standard cell switching technology is only applicable to mobile services, and cannot be used for MEC local breakout service. Thus, in the prior art, after the communication cell is switched, the local service of the mobile terminal needs to send a request again to the MEC device managing the new communication cell for reconnection, which not only has complex operation and long time consumption, but also cannot realize uninterrupted switching. Particularly for the data card and other scenes, because of the absence of the terminal APP software, the mobile terminal cannot automatically reinitiate the local service request after the cell is switched, and thus, the continuity of the local service cannot be maintained when the user moves.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and an apparatus for maintaining local service when a mobile terminal switches a communication cell, which are simple in operation, short in time consumption, and capable of implementing uninterrupted local service switching, aiming at the defects that the above operations are complicated, the time consumption is long, and uninterrupted local service switching cannot be implemented in the prior art.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for maintaining local service of a mobile terminal when the mobile terminal switches a communication cell is constructed, comprising the following steps:
A) monitoring command interaction between a communication cell base station and a core network through source MEC equipment which provides an application interface to send a local service request to a mobile terminal, and obtaining cell switching information from a communication cell switching command in the command;
B) judging whether a target communication cell to be switched to is managed by the source MEC equipment, if so, updating a target attribute of local connection of the mobile terminal corresponding to the communication cell switching instruction, and keeping the local connection; otherwise, generating a local service reestablishment message, and sending the message to target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell;
C) and the target MEC equipment receiving the local service reestablishment message searches the mobile terminal and reestablishes local service connection for the mobile terminal according to the local service reestablishment message.
Further, before the above steps are performed, the following steps are also included:
acquiring network side information of a mobile terminal accessed to the communication cell by monitoring instruction transmission between a base station and a core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state.
Furthermore, the network side information includes an IP address of the mobile terminal, an IP address of the base station, an IP address of a core network service gateway, and a bearer tunnel ID of the mobile terminal.
Further, in the step B), the target attribute of the local connection includes a serving base station IP address, a bearer tunnel ID, or/and a local forwarding rule.
Further, the step B) further comprises the following steps:
B1) obtaining the name or the number of a target communication cell, and searching the name or the address of the MEC equipment corresponding to the target communication cell or managing the target communication cell;
B2) comparing whether the name or address of the searched MEC equipment is the same as the name or address of the currently connected source MEC equipment, if so, judging that the target communication cell is under the management of the source MEC equipment; and if not, judging that the target communication cell is not under the management of the source MEC equipment.
Furthermore, the rebuilt local service information includes the IP address of the mobile terminal and the activated local application name; the target MEC equipment acquires the configuration information of the activated local application stored on the target MEC equipment according to the instruction for reestablishing local connection sent by the source MEC equipment, and reactivates the local application for the terminal; wherein the configuration information of the local application includes local forwarding rules.
Still further, the local traffic comprises data or service requests and their subsequent data transmissions that satisfy the following definitions:
and the mobile terminal sends out data or service requests which can be provided by a local network and subsequent data transmission of the data or service requests which are sent out by the reference interface provided by the source MEC equipment and filtered and judged by the source MEC equipment according to a set rule. .
The invention also relates to a device for realizing the method, which comprises the following steps:
a handover information acquisition unit: source MEC equipment used for sending a local service request to a mobile terminal through an application interface provided before monitors the instruction interaction between the communication cell base station and a core network, and obtains cell switching information from the communication cell switching instruction;
a judging unit: the local connection control module is used for judging whether a target communication cell to be switched to is managed by the source MEC equipment, if so, updating a target attribute of local connection of the mobile terminal corresponding to the communication cell switching instruction, and keeping the local connection; otherwise, generating a local service reestablishment message, and sending the message to target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell;
a reconstruction unit: and the mobile terminal is used for searching the mobile terminal by the target MEC equipment receiving the local service reestablishment message, and reestablishing local service connection for the mobile terminal according to the local service reestablishment message.
Still further, still include:
a local service establishing unit: the network side information of the mobile terminal accessed to the communication cell is obtained by monitoring instruction transmission between the base station and the core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state.
Still further, the determining unit further includes:
a target cell information acquisition module: the method comprises the steps of obtaining the name or the number of a target communication cell, and finding the name or the address of the MEC equipment corresponding to or managing the target communication cell;
a target cell judgment module: the controller is used for comparing whether the name or address of the searched MEC equipment is the same as the name or address of the currently connected source MEC equipment, and if so, judging that the target communication cell is under the management of the source MEC equipment; and if not, judging that the target communication cell is not under the management of the source MEC equipment.
The method and the device for keeping the local service of the mobile terminal when the mobile terminal switches the communication cell have the following beneficial effects: because the command interaction between the base station and the core network is monitored, the MEC equipment can know whether the mobile terminal establishing the local service through the MEC equipment is in communication cell switching, switching time and a target cell for switching; further, whether the switched target cell belongs to the MEC equipment management can be judged, and local service reestablishment information (including a mobile terminal IP address, an activated local application name, a connection state and the like) can be produced and transmitted to the MEC equipment managing the target communication cell under the condition that the switched target cell does not belong to the MEC equipment management, so that the equipment actively establishes local connection for the mobile terminal, and the mobile terminal is prevented from sending a local service connection request again; in other words, the information whether to generate the local connection reestablishment information and the information for generating the local connection reestablishment information are obtained through the existing cell switching technology, and then the local service connection initiated by the MEC equipment is realized, so that the method has no dependence on the terminal APP, is suitable for various terminal equipment such as mobile phones and data cards, is simple to operate, takes less time, and can realize uninterrupted switching.
Drawings
Fig. 1 is a flow chart of the method in the embodiment of the method and the device for maintaining the local service of the mobile terminal when the mobile terminal switches the communication cell;
FIG. 2 is a schematic diagram of network connections in one case of the described embodiments;
FIG. 3 is a flowchart of the actions of the network components in the case shown in FIG. 2 in the embodiment;
FIG. 4 is a schematic diagram of network connections in another scenario of the embodiment;
FIG. 5 is a flowchart of the actions of the network components in the case shown in FIG. 4 in the embodiment;
fig. 6 is a schematic structural view of the device in the embodiment.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, in the embodiment of the method and apparatus for maintaining local service when a mobile terminal switches communication cells according to the present invention, when a mobile terminal that has established local service in a current communication cell (i.e. a coverage area of a mobile communication base station) moves to another communication cell, the maintenance or automatic re-establishment of local service comprises the following steps:
step S11 the mobile terminal establishes a local connection within the current communication cell: in this embodiment, after a mobile terminal enters a communication cell, it should establish a communication service first, and then in some cases, it may need to establish a data or application service other than the conventional communication service. In any case, for a mobile terminal, after entering a communication cell, the mobile terminal inevitably establishes connection with a core network through a base station first, so that the identity of the mobile terminal can be judged and a communication service can be established; this process is inherent in any existing mobile terminal entering a new communication cell and involves a significant amount of data or command interaction between the mobile terminal and the core network, forwarded through the base station. On the basis, the MEC equipment for managing the communication cell acquires the network side information of the mobile terminal accessed to the communication cell by monitoring the instruction transmission between the base station and the core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state. In this embodiment, this step exists as the basis of the subsequent step, and if a mobile terminal (or user) does not establish a local connection in a communication cell, when the mobile terminal switches the communication cell, the problem of switching the local connection does not naturally exist; however, after a mobile terminal establishes a local connection in a communication cell, in the prior art, due to lack of necessary technical means, when the mobile terminal switches the communication cell, the existing connection or data is discarded, and in a new target cell, the mobile terminal sends a local service request to the MEC device of the cell again to perform local service connection again. At this time, it is equivalent to repeat the step or the operation similar to the step many times, so the data loss of the local service, the operation complexity, the time consumption and the like may occur in the prior art. Particularly for the data card and other scenes, because of the absence of the terminal APP software, the mobile terminal cannot automatically reinitiate the local service request after the cell is switched, and thus, the continuity of the local service cannot be maintained when the user moves. In addition, in this embodiment, the local service refers to data or service requests and subsequent data transmission thereof, which are sent by the mobile terminal through a reference interface provided by the source MEC device and can be provided by the local network and are filtered and judged by the source MEC device according to a set rule; local traffic is not traditional communication traffic. The network side information comprises the IP address of the mobile terminal, the IP address of the base station, the IP address of the core network service gateway, the ID of the bearing tunnel of the mobile terminal and the like. In some cases, the address or the number may be any one of the above addresses or numbers, may be any combination of a plurality of the addresses or numbers, and may be all of the above addresses or numbers.
Step S12 obtains the communication cell handover information by monitoring the command interaction between the core network and the base station: starting from this step, it is a step different from the prior art for performing local connection switching in this embodiment, i.e., the step in this embodiment is the key point. In this step, the source MEC device, which provides the application interface to send the local service request to the mobile terminal, monitors the command interaction between the base station of the communication cell and the core network, and obtains the cell switching information from the communication cell switching command; that is to say, in practice, the MEC device always monitors data or instruction interaction between the base station and the core network, and for this step, if the monitored instruction is not a cell handover instruction, the monitored instruction or data is discarded; when the monitored communication cell switching instruction is judged to be the communication cell switching instruction in the movement (for example, whether the communication cell switching instruction is the communication cell switching instruction or not can be judged through an operation code of the instruction), the instruction is reserved, and data carried in the instruction is obtained, wherein the data comprises the cell switching information, such as the address, the name and the like of the target cell.
Step S13 determines whether the target cell for handover is managed by the current MEC device: in this step, it is determined whether the target communication cell to be handed over to is under the management of the source MEC device, if yes, step S14 is executed; otherwise, step S15 is executed.
Specifically, in this embodiment, the determining process may be to obtain a name or a number of a target communication cell, find a name or an address of the MEC device corresponding to or managing the target communication cell, compare whether the found name or address of the MEC device is the same as the name or address of the currently connected source MEC device, and determine that the target communication cell is under the management of the source MEC device if the name or address of the MEC device is the same as the name or address of the currently connected source MEC device; and if not, judging that the target communication cell is not under the management of the source MEC equipment. That is, whether the above-mentioned target communication cell can be converted into the same of the EMC equipment name or address under the management of the source MEC equipment.
Step S14 updates the network side information of the mobile terminal, and maintains the local connection: in this step, since the MEC devices of the two communication cells are the same, it is only necessary to update the attribute of the local connection of the mobile terminal and maintain the original connection. Therefore, in this step, the network side information of the mobile terminal corresponding to the communication cell switching instruction and the target attribute of the local connection are updated, and the local connection is maintained. In this embodiment, the network side information includes an IP address of the mobile terminal, an IP address of a base station, an IP address of a core network service gateway, and a bearer tunnel ID of the mobile terminal. The updating of this information ensures the connection of the home network (or an application in the home network) to the mobile terminal within the same cell. In addition, the target attribute of the local connection includes a service base station IP address, a bearer tunnel ID, and a local forwarding rule.
Step S15 generates local connection reestablishment information and sends the information to the MEC device of the target cell: in this step, since the two communication cells (the source cell where the mobile terminal is currently located and the target cell to which the mobile terminal is to be handed over) have different MEC devices, after the mobile terminal is handed over to the target cell, the MEC device of the source cell cannot obtain data of local connection, so the original local connection is abandoned; in order to implement simple and uninterrupted local connection, in this embodiment, a method of actively establishing local connection for the mobile terminal by using MEC equipment in a target cell is adopted, so that a user operating the mobile terminal can implement local connection handover without taking any action, and in most cases, the user does not even perceive the local connection handover, just as the user does not perceive the handover of a communication cell. Therefore, in this step, the MEC device in the source cell generates a local service reestablishment message, and sends the local service reestablishment message to the target MEC device managing the target communication cell after the mobile terminal switches the communication cell; the local service re-establishment message includes all information needed to re-establish the local connection on the target cell.
Step S16, the MEC device in the target cell automatically reestablishes the local connection of the mobile terminal: in this step, the target MEC device that receives the local service reestablishment message searches for the mobile terminal, and reestablishes the local service connection for the mobile terminal according to the local service reestablishment message. In some cases, the rebuilt local service information includes an IP address of the mobile terminal and an activated local application name; the target MEC equipment acquires the configuration information of the activated local application stored on the target MEC equipment according to the instruction for reestablishing the local connection sent by the source MEC equipment, and reactivates the local application for the terminal; wherein the configuration information of the local application includes local forwarding rules. In this way, it is achieved that the above-mentioned local connection initiated or established by the target MEC device and the previous local connection can be switched almost seamlessly and uninterruptedly. Thus, the required simple, automatic switching of local service connections is achieved.
To sum up, in this embodiment, a mobile terminal first sends a data or application request through the MEC device managing the cell in the communication cell (cell for short), and when the data or application request conforms to the implementation-set rule, it indicates that the mobile terminal is a local service, and then the MEC device establishes a local service connection between the mobile terminal and the local network. Specifically, when a mobile terminal enters a cell, the MEC device monitors signaling between the base station and the core network, and when a user accesses the cell, the MEC device obtains network side information of the user by analyzing the signaling. When a (mobile terminal) user requests to initiate a local service through an API provided by the MEC, the MEC equipment establishes a local connection for the user according to the obtained network side information of the user and records the state of the user. If the mobile terminal stays in the cell within the validity period of the local connection, the problem of switching is not involved. When the mobile terminal moves within the lifespan of the local connection or the local service and a cross-cell situation occurs, the cell switching of the communication service naturally uses the existing technology, but the switching of the local service follows the following steps: when a user is switched across cells, the MEC equipment monitors and acquires switching information through signaling; if the target cell of the switch is also managed by the MEC equipment, updating the network side information of the user and updating the attribute of the local connection target; if the switched target cell is not under the management of the MEC equipment but is within the management range of the configured adjacent MEC equipment, after the switching is successful, the source MEC equipment sends an MEC service reconstruction message to the target MEC equipment, and the message carries service information and informs the target MEC equipment of reconstructing service for the user; the target MEC device then re-establishes a local connection for the user, with the user data remaining continuous.
In this embodiment, the above steps are illustrated by two more practical examples.
For a specific example, refer to fig. 2 and fig. 3, where fig. 2 is a networking scenario of the example, and fig. 3 is a specific flowchart thereof. In fig. 2, the mobile terminal is handed over between 2 LTE cells managed by the same MEC device, and the handover procedure is as shown in fig. 3, and approximately as follows:
and the user accesses the source cell. The MEC device monitors a signaling between the base station and the core network, and obtains information of an S1 port transmission layer IP, TEID and the like of a user by analyzing the signaling;
when a user requests to initiate a local service through an API provided by the MEC, the MEC equipment establishes local connection for the user according to the obtained information of the user' S S1 port transport layer IP, TEID and the like, and records the state of the user.
The local connection is successfully established and the local data can be successfully forwarded to the user through the MEC.
When the user is switched from one cell to another, the MEC equipment monitors and acquires the IP and TEID information of a transmission layer of an S1 port of a target cell through signaling.
The MEC equipment updates the local connection destination transport layer IP and TEID information.
The user data can be forwarded from the local network to the target cell through the MEC equipment, remaining continuous.
For another specific example, please refer to fig. 4 and fig. 5, wherein fig. 4 is a networking situation of the example, and fig. 5 is a specific flowchart thereof. In fig. 4, the mobile terminal switches between 2 LTE cells managed by 2 MEC devices, and the switching process is as shown in fig. 5 and roughly as follows:
and the user accesses the source cell. The source MEC device monitors the signaling between the base station and the core network, and obtains information of an S1 port transport layer IP, TEID and the like of the user by analyzing the signaling.
When a user requests to initiate a local service through an API provided by an MEC, the source MEC equipment establishes a local connection for the user according to the obtained information of the user' S S1 port transport layer IP, TEID and the like, and records the state of the user.
The local connection is successfully established and the local data can be successfully forwarded to the user via the source MEC.
When a user is switched across cells, the source MEC equipment monitors and learns that the target cell is not in the MEC through signaling, and acquires the IP information of the target MEC according to preset configuration. Meanwhile, the target MEC equipment also obtains information such as an IP (Internet protocol) and TEID (terminal identity) of a transport layer of an S1 port of the user in the target cell through signaling monitoring.
The source MEC equipment sends an MEC service reconstruction request to the target MEC equipment, and the message carries user identification, MEC service information, authentication information and the like.
The target MEC device reestablishes the local connection according to the request.
The user data can be forwarded from the local network to the target cell through the target MEC equipment, remaining continuous.
The invention also relates to a device for implementing the method, and the structural schematic diagram of the device is shown in figure 6. In fig. 6, the apparatus includes a handover information acquiring unit 1, a determining unit 2, a reconstructing unit 3, and a local service establishing unit 4; the switching information obtaining unit 1 is configured to monitor instruction interaction between the communication cell base station and the core network through a source MEC device that provides an application interface to send a local service request to the mobile terminal, and obtain cell switching information from a communication cell switching instruction in the communication cell switching instruction; the judging unit 2 is configured to judge whether a target communication cell to be handed over is managed by the source MEC device, and if so, update an attribute of a local connection of the mobile terminal corresponding to the communication cell handover instruction and maintain the local connection; otherwise, generating a local service reestablishment message, and sending the message to target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell; the rebuilding unit 3 is configured to enable the target MEC device that receives the local service rebuilding message to search for the mobile terminal, and rebuild the local service connection for the mobile terminal according to the local service rebuilding message. The local service establishing unit 4 is configured to obtain network side information of the mobile terminal accessing the communication cell by monitoring instruction transmission between the base station and the core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state.
In addition, in this embodiment, the determining unit 2 further includes: the target cell information obtaining module 21 is configured to obtain a name or a number of a target communication cell, and find a name or an address of an MEC device corresponding to the target communication cell or managing the target communication cell; the target cell determining module 22 is configured to compare whether the name or address of the found MEC device is the same as the name or address of the currently connected source MEC device, and if so, determine that the target communication cell is under management of the source MEC device; and if not, judging that the target communication cell is not under the management of the source MEC equipment.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A method for maintaining local services in a mobile terminal during a handover of the mobile terminal to a communication cell, comprising the steps of:
step A) a source MEC device which provides an application interface to send a local service request to a mobile terminal monitors the instruction interaction between a base station of the communication cell and a core network, and cell switching information is obtained from the communication cell switching instruction;
step B) judging whether a target communication cell to be switched to is managed by the source MEC equipment, if so, updating a target attribute of local connection of the mobile terminal corresponding to the communication cell switching instruction, and keeping the local connection; otherwise, generating a local service reestablishment message, and sending the message to target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell;
step C) the target MEC equipment which receives the local service reestablishment message searches the mobile terminal and reestablishes local service connection for the mobile terminal according to the local service reestablishment message;
the step B) also comprises the following steps:
step B1) obtaining the name or number of the target communication cell, and finding out the name or address of the MEC equipment corresponding to or managing the target communication cell;
step B2) comparing whether the name or address of the found MEC device is the same as the name or address of the currently connected source MEC device, if so, determining that the target communication cell is under the management of the source MEC device; and if not, judging that the target communication cell is not under the management of the source MEC equipment.
2. The method of claim 1, further comprising the following steps before the steps are performed:
acquiring network side information of a mobile terminal accessed to the communication cell by monitoring instruction transmission between a base station and a core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state.
3. The method of claim 2, wherein the network side information comprises an IP address of the mobile terminal, a base station IP address, a core network service gateway IP address, and a bearer tunnel ID of the mobile terminal.
4. The method for maintaining local service of mobile terminal when switching communication cell according to claim 3, wherein in step B), the target attribute of the local connection includes the IP address of the serving base station, the ID of the bearer tunnel and the local forwarding rule.
5. The method of claim 4, wherein the reestablished local service information comprises the IP address of the mobile terminal and the activated local application name; the target MEC equipment acquires the configuration information of the activated local application stored on the target MEC equipment according to the instruction for reestablishing local connection sent by the source MEC equipment, and reactivates the local application for the terminal; wherein the configuration information of the local application includes local forwarding rules.
6. The method for maintaining local service of a mobile terminal when handing over a communication cell according to any of claims 1 to 5, wherein the local service comprises:
and the mobile terminal sends out data or service requests which can be provided by a local network and subsequent data transmission of the data or service requests which are sent out by the reference interface provided by the source MEC equipment and filtered and judged by the source MEC equipment according to a set rule.
7. An apparatus for implementing the method of claim 1 for maintaining local service when a mobile terminal switches communication cells, comprising:
a handover information acquisition unit: source MEC equipment used for sending a local service request to a mobile terminal through an application interface provided before monitors the instruction interaction between the communication cell base station and a core network, and obtains cell switching information from the communication cell switching instruction;
a judging unit: the local connection control module is used for judging whether a target communication cell to be switched to is managed by the source MEC equipment, if so, updating a target attribute of local connection of the mobile terminal corresponding to the communication cell switching instruction, and keeping the local connection; otherwise, generating a local service reestablishment message, and sending the message to target MEC equipment for managing the target communication cell after the mobile terminal switches the communication cell;
a reconstruction unit: the mobile terminal is used for searching the mobile terminal by the target MEC equipment which receives the local service reestablishment message, and reestablishing local service connection for the mobile terminal according to the local service reestablishment message;
the judging unit further comprises:
a target cell information acquisition module: the method comprises the steps of obtaining the name or the number of a target communication cell, and finding the name or the address of the MEC equipment corresponding to or managing the target communication cell;
a target cell judgment module: the controller is used for comparing whether the name or address of the searched MEC equipment is the same as the name or address of the currently connected source MEC equipment, and if so, judging that the target communication cell is under the management of the source MEC equipment; and if not, judging that the target communication cell is not under the management of the source MEC equipment.
8. The apparatus of claim 7, further comprising:
a local service establishing unit: the network side information of the mobile terminal accessed to the communication cell is obtained by monitoring instruction transmission between the base station and the core network; and when the mobile terminal initiates local service connection through an application interface provided by MEC equipment managing the local communication cell, the mobile terminal establishes connection with a local network by using the network side information and records the established connection state.
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| CN109788515B (en) * | 2017-11-13 | 2021-08-06 | ***通信有限公司研究院 | Data collaboration method, MEC (media independent center) equipment and server |
| CN112291381B (en) * | 2017-11-13 | 2022-01-21 | 华为技术有限公司 | Application server switching method, device and system |
| CN109788513B (en) * | 2017-11-13 | 2021-03-23 | 中国电信股份有限公司 | Data synchronization method, system and controller for edge computing application |
| CN108337691A (en) * | 2018-01-19 | 2018-07-27 | 南京邮电大学 | A kind of services migrating method and system of mobile edge user oriented movement |
| CN110086844A (en) * | 2018-01-26 | 2019-08-02 | 华为技术有限公司 | A kind of method and relevant device of service management |
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| CN108712761B (en) * | 2018-03-20 | 2021-02-09 | 中国科学院计算机网络信息中心 | Method and system for maintaining MEC edge TCP business service by mobile terminal in cross-region mode |
| CN110475299B (en) * | 2018-05-10 | 2021-06-29 | 维沃移动通信有限公司 | Method and device for switching cells |
| CN110505073B (en) * | 2018-05-16 | 2020-11-17 | 华为技术有限公司 | Mobile edge calculation method and device |
| FR3086493B1 (en) * | 2018-09-20 | 2020-08-28 | Renault Sas | PROCESS FOR REASSIGNING A PERIPHERAL DATA PROCESSING SERVER |
| CN111225421A (en) * | 2018-11-23 | 2020-06-02 | 中国电信股份有限公司 | Mobile edge computing device and switched service processing method thereof |
| CN109495938B (en) * | 2018-12-21 | 2020-02-21 | 西安电子科技大学 | Network switching method based on multi-access edge calculation |
| CN111356187A (en) * | 2018-12-24 | 2020-06-30 | 大唐移动通信设备有限公司 | Message transmission method and device |
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| CN111132248A (en) * | 2019-12-12 | 2020-05-08 | 中国联合网络通信集团有限公司 | Data transmission method and device |
| CN113395238B (en) * | 2020-03-12 | 2022-09-23 | 华为技术有限公司 | Authentication and authorization method and corresponding device |
| CN111447652B (en) * | 2020-03-20 | 2022-07-01 | 中移雄安信息通信科技有限公司 | Switching method, device and equipment of mobile edge operation host of mobile terminal |
| CN111698707B (en) * | 2020-07-13 | 2023-08-25 | 上海未来宽带技术股份有限公司 | MEC-based 5G small cell communication management method |
| CN113507733B (en) * | 2021-06-18 | 2023-10-24 | 新华三技术有限公司 | MEC-based user switching method, server and storage medium |
| CN113726882B (en) * | 2021-08-30 | 2023-08-11 | 中国电信股份有限公司 | Information service system, method and device, equipment and medium based on 5G network |
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| CN106559829A (en) * | 2015-09-30 | 2017-04-05 | 中国电信股份有限公司 | For realizing the method and system of distributed MCE counting statisticses |
| CN106604328B (en) * | 2015-10-15 | 2019-05-10 | 中国电信股份有限公司 | The region MECC switching method and system |
| WO2017066945A1 (en) * | 2015-10-21 | 2017-04-27 | 华为技术有限公司 | Mec platform switching method, device, and system |
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