Method for subscribing to geo-service in MEC architecture

Abstract

To provide a method for Mobile Equipment (ME) to subscribe to a geo-service hosted on a peripheral server within a Mobile Edge Computing (MEC) architecture network.SOLUTION: A method includes step E11 of sending a registration message ME11 to a central server SC, step E21 of sending a subscription message ME21 corresponding to the type of event to a peripheral server SP1, and step E23 of receiving a message ME23. The registration message ME11 indicates the event type. The sending E21 of the subscription message ME21 includes a step of receiving the message ME23 giving information about an event of a type, on the condition of prior reception E17 of a notification message ME17 that the event of the type has occurred and that corresponding information is suitable to be transmitted by the peripheral server SP1.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention generally relates to the field of telecommunications, and more specifically, to a method of subscribing a mobile device to specific information regarding a geographical location in a MEC (Mobile Edge Computing) architecture.

Background Art

[0002] The MEC architecture defined in the ETSI GS MEC 003 ("European Telecommunications Standards Institute Group Specification Mobile Edge Computing") specification enables the relocation of specific calculations executed on a mobile terminal to a distributed server located in a limited geographical zone around the location of the mobile terminal and / or centrally managed by the MEC architecture. Thereby, mobile terminals, especially those incorporated in connected cars, can utilize the very large computing power available on these servers, and in particular, can display a highly accurate map of a road rich in real-time events that can be shared among connected cars. Also, these servers provide a service for determining a virtual horizon, also called an electronic horizon, to notify the vehicle of obstacles and events that will occur in the near future and that cannot be immediately accessed by sensors built into the vehicle. These mapping or electronic horizon services are geoservices in the same way that the data to be processed depends on a geographical location.

[0003] The mobile device ME of a vehicle seeking to benefit from such a service is first identified and must be registered with the central server SC of the MEC architecture network in a first step E1 corresponding to the transmission of a registration message ME1 shown in FIG. 1. Upon receiving this message ME1, the central server SC authenticates the mobile device ME. When the latter is authenticated, the central server SC checks that the mobile device ME has the rights necessary to use the requested geoservice and permits it to do so.

[0004] In a second step E2, the mobile device ME sets up a communication session with a data processing peripheral server SP that instantiates this geoservice for the geographical zone where the mobile device ME is located.

[0005] Once the communication session is set up, in step E3, the mobile device ME sends a message ME3 for joining the geoservice to the peripheral server SP. This message ME3 is composed of a list of events that are likely to be of interest in the region of interest (ROI), and is also indicated in this message ME3. The list of events is composed of, for example, values corresponding to traffic accidents and values corresponding to traffic jams. Note that the message ME3 may be a secure http type request.

[0006] The next step E4 is for the peripheral server SP to send a confirmation response message ME4 (here, a secure confirmation response http message) to the mobile device ME.

[0007] When an event corresponding to the list sent in step E3 by the mobile device ME occurs, the peripheral server SP sends a secure message ME5 in step E5 to inform the mobile device ME of this.

SUMMARY OF THE INVENTION

PROBLEMS TO BE SOLVED BY THE INVENTION

[0008] This procedure that enables a mobile device to subscribe to a geoservice induces costly communication between the mobile device and the surrounding servers. In fact, in step E2 of the https (short for hypertext transfer protocol secure) connection, about 20 messages are exchanged, including opening a communication session and TLS (short for transport layer security) negotiation. Also, for these communications, a high-quality uRLLC (short for Ultra-reliable and low latency connection) slice is used to support real-time notifications of the mobile device. These communications are relatively expensive and data-intensive for both the mobile device and the MEC architecture network, as well as for the computing resources of the surrounding servers of the network, because the resources of uRLLC are limited. Also, the time used by the surrounding servers to start the execution of the geoservice is costly.

[0009] Therefore, when a mobile device is a user of a geoservice within an MEC architecture network, it is necessary to limit the use of uRLLC resources and the connection on the surrounding servers.

[0010] One of the objectives of the present invention is to improve at least some of the drawbacks of the prior art by providing a method for a mobile device to subscribe to a geoservice and a method for transmitting mobile device information linked to the geoservice. In this method, the subscription procedure of the mobile device is restricted when the surrounding server that instantiates this geoservice has the information that it should actually provide to the mobile device.

Means for Solving the Problems

[0011] For this purpose, the present invention proposes a method of subscribing a mobile device to information regarding at least one type of event using a notification service linked to the geography of a location, wherein the notification service is hosted on a data processing peripheral server of a MEC architecture network, and the method is executed on the mobile device and includes the following steps. sending a registration request message requesting registration to a central server of the network; sending a subscription message requesting subscription to the at least one type of event to a data processing peripheral server; receiving a message providing information regarding the at least one type of event to the mobile device (ME), wherein the registration request message indicates the at least one type of event, the step of sending the subscription message is conditional on the existence of a preceding step of receiving a notification message that the at least one type of event has occurred at the location, corresponding information is stored in the data processing peripheral server, and the notification message is distributed to the mobile device via a high-speed messaging channel called a "paging" channel.

[0012] According to the present invention, a mobile device starts a subscription procedure with a data processing peripheral server only when the data processing peripheral server actually has information to be supplied to the mobile device, that is, information corresponding to one or less types among the types of events previously registered by the mobile device with the central server. Therefore, unnecessary transmission of messages corresponding to the subscription procedure is avoided, uRLLC resources and core network of the MEC architecture are saved, and power consumption of the vehicle is reduced.

[0013] According to an advantageous feature of the subscription method according to the present invention, in the said subscription message (subscription message), the said mobile device indicates an area of interest in which the said peripheral server must transmit information regarding at least one type of the said event.

[0014] In this way, even when a vehicle subscribes to a specific type of event with a peripheral server, it is possible to reduce the transmission of information that does not correspond to a geographical zone that is purely of interest to the mobile device.

[0015] The said mobile device is a communication module of the vehicle, and the said area of interest corresponds to a route programmed into the said vehicle. This use case of the present invention is particularly advantageous because it can dynamically process the area of interest. The central server and the peripheral server can be coupled to, for example, the location service of the vehicle to track its location and dynamically limit the broadcast zone of the notification message.

[0016] According to another advantageous feature of the subscription method according to the present invention, the step of receiving the notification message includes a sub-step of decrypting a data field specific to such event notifications, and the said specific data field is assigned to the core network and is included in a data field present in the "paging record" field of the said high-speed messaging channel.

[0017] This specific data field is assigned to, for example, all V2X (vehicle-to-everything) services and enables specifying a list of types of events that a vehicle can subscribe to.

[0018] The present invention is also a method for transmitting information regarding a type of event to a mobile device by a data processing peripheral server that hosts a notification service linked to the geography of a location within a MEC architecture network, the method being executed in the said network and including the following steps. A step in which a central server receives a registration request message sent from the mobile device, where the registration request message includes at least a display of the type of the event, and the step, A step in which the central server sends a message indicating at least the type of the event to at least one data processing peripheral server of the network that hosts the notification service, A step in which the at least one data processing peripheral server verifies that an event of the type exists in its database, When the at least one data processing peripheral server includes an event of the type in its database, a step in which the at least one data processing peripheral server sends a message to at least one base station connected to broadcast a message notifying the existence of the event of the type to the mobile device via a fast messaging channel called a "paging" channel, A step in which the at least one peripheral device server receives a subscription message for the type of event sent from the mobile device, Including a step in which the at least one data processing peripheral server sends a message providing information about the event to the mobile device.

[0019] Advantageously, the subscription message includes an area of interest, and the step of sending a message providing information is conditional on the fact that the event is related to the area of interest.

[0020] Also advantageously, in the step of sending a message indicating at least the type of the event by the central server, the message indicating at least the type of the event is only sent to a data processing peripheral server of the network that hosts the notification service where the network coverage corresponds to the current location or the programmed location of the mobile device.

[0021] Also advantageously, the at least one peripheral device server broadcasts the message notifying the presence of the event to the mobile device only to a base station corresponding to the current position or the programmed position of the mobile device, in order to broadcast the message on a high-speed messaging channel.

[0022] Also advantageously, the at least one peripheral server transmits the message to the at least one base station only when the event is related to a zone covered by the at least one base station.

[0023] Also advantageously, after the step of the at least one peripheral server transmitting a message giving information to the mobile device, the at least one peripheral server, when the event has become obsolete or when the mobile device has left the zone where the at least one information processing peripheral server provides services, transmits a message to the at least one base station to which it is connected to stop the broadcast of the notification message on the high-speed messaging channel.

[0024] The method of transmitting information regarding an event of a type by a data processing peripheral server according to the present invention provides advantages similar to those of the subscription method according to the present invention.

Effects of the Invention

[0025]

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0027] According to a preferred embodiment of the present invention, the mobile device ME subscribes to an information notification service linked to the geography of a location called a geoservice by the procedure shown in Figure 2.

[0028] In the first step E11, here the mobile device ME incorporated in the vehicle transmits a registration message ME11 to the central server SC of the MEC architecture network. This message ME11 consists of the identifier of the mobile device ME, the values of parameters enabling the evaluation of the processing capacity and communication capacity of the vehicle, the identifier of the geoservice in which the mobile device ME is registered, and one or more values corresponding to the types of events for which the mobile device is requesting notifications. These events correspond to, for example, works in progress, accidents, slow vehicles, traffic jams, etc. The message ME11 is based on, for example, the https protocol.

[0029] Upon receiving this message ME11, the central server SC authenticates the mobile device ME, then verifies that the mobile device ME has the capabilities necessary to use the requested geoservice, and permits its use on the data processing peripheral server that instantiates this geoservice. The central server SC, in particular, after step E11, sends message ME12 to the first peripheral server SP1 in step E12 and message ME13 to the second peripheral server SP2 in step E13. These servers correspond to the peripheral servers that instantiate the geoservice, and their operators permit access to the mobile device ME, in particular in accordance with their subscriptions. Messages ME12 and ME13 are based on, for example, the https or mqtt (abbreviation for message queuing telemetry transport) protocol of the secure layer. As a variant embodiment, when the central server SC interfaces with the location service of the mobile device ME, the central server SC sends a message only to the data processing peripheral server corresponding to the approximate location of the vehicle immediately after the first step E11. Thus, the vehicle can benefit from the geoservice even when it is moving within a predefined distance zone.

[0030] Messages ME12 and ME13 each contain the identifier of the mobile device ME and a list of values corresponding to the types of events for which notifications are requested. This identifier of the mobile device is derived from the IMEI (abbreviation for International Mobile Equipment Identity) according to the specifications of the cellular network. After steps E12 and E13, steps E14 and E15 follow respectively, and these steps may be executed simultaneously, for example.

[0031] Step E14 is for the peripheral device SP1 to verify that one or more events of the type included in the list received in step E12 are stored in the database. In this exemplary embodiment of the present invention, it is assumed that at least one of these events is stored in the database of the peripheral server SP1. For example, an accident in the geographical zone covered by this peripheral server is assumed.

[0032] Similarly, step E15 is for the peripheral server SP2 to verify that one or more events of the type included in the list received in step E13 are stored in the database. In this exemplary embodiment of the present invention, it is assumed that the corresponding events are not stored in the database of the peripheral server SP2. Therefore, the peripheral server SP2 stores the list received in step E13 but does not start the notification procedure regarding the mobile device ME.

[0033] After step E14, the peripheral server SP1 transmits a message ME16 to the first base station SB1 in step E16 and transmits a message ME18 to the second base station SB2 in step E18. These messages use, for example, the https protocol.

[0034] These base stations SB1, SB2 correspond to the radio transceiver stations to which the peripheral server SP1 is connected. As a modified embodiment, when the peripheral server SP1 is linked with the location service of the mobile device ME, the peripheral server SP1 immediately after step E14 transmits messages only to the base station corresponding to the approximate position of the vehicle and / or the base station corresponding to the event whose geographical range is stored in the database of the peripheral server SP1. Therefore, even when the vehicle is moving within the zone of a predefined distance, it can receive the benefits of the geo-service, and only the events related to the zone of this predefined distance will be notified.

[0035] Messages ME16 and ME18 each include an identifier of mobile device ME and one or more values (here, values corresponding to an accident) stored in the database of peripheral server SP1 and included in the list received in step E12, corresponding to the type of event.

[0036] Upon receiving message ME16, base station SB1 transmits notification message ME17 to mobile device ME in step E17. The transmission of this notification message ME17 uses a high-speed messaging channel called the "paging" channel. To do so, base station SB1 adds a specific data field "V2X", called a "paging record" in the "paging record list", to an LTE (long term evolution) subfield called a "paging occasion (PO)" corresponding to the identifier of the mobile device. The "paging record list" is a list of data targeted at mobile devices connected to base station SB1.

[0037] Next, the data field "paging record" is composed of the following data fields. · "UE-identity" that encodes the identifier value of mobile device ME. · "cn-domain" that takes a value of either "ps" for packet switch, "cs" for circuit switch, or "V2X", a new value used for notification to the mobile device according to the present invention. The selected value "cn-domain" corresponds to a message (incoming data communication, incoming voice communication, or notification message) intended for the mobile device according to the present invention. In this exemplary embodiment of the present invention, the "cn-domain" field takes the value "V2X". · Specific data field "V2X" The specific data field "V2X" encodes the type of events corresponding to accidents in this exemplary embodiment. More generally, the content of this field is a table with items for all events that a mobile device with the identifier "UE-identity" may potentially be interested in and that exist in the database of the peripheral server associated with the base station. That is, it forms part of the registration message ME11. Thus, at the time of the registration message ME11, if the vehicle indicates an interest in four types of events {accident, animal on the road, construction, traffic jam}, and the peripheral server SP1 only has accident-type events in the database, the field "V2X" will take the value {accident}.

[0038] The message ME17 corresponding to this specific data field "V2X" is periodically notified to the mobile device ME, and the mobile device ME usually wakes up every 1.048 seconds to read the "paging occasion" field. This period of 1.048 corresponds to a discontinuous reception cycle called DRX, which allows the mobile device ME not to continuously monopolize radio resources for listening to the "paging" channel when it is in standby mode. Thus, upon receiving the message ME17 in this step E17, the mobile device ME decodes this specific field "V2X" of the message ME17 transmitted via the "paging" channel and confirms that the geoservice has recorded an event of the "accident" type that is likely to correspond to its region of interest ROI.

[0039] Similarly, upon receiving the message ME18, the base station SB2 transmits a notification message ME19 to the mobile device ME in step E19. The transmission of this notification message ME17, which includes the type of event corresponding to the accident and the identifier of the mobile device, uses the "paging" channel in the same way as in step E17.

[0040] In this exemplary embodiment of the present invention, it is assumed that the mobile device ME is located within the coverage of the base station SB1 and, thus, is receiving the notification message ME17.

[0041] Next, in the next step E20, in order to retrieve information regarding the "accident" type event notified earlier, a communication session with the data processing peripheral server SP1 is set up. This step E20 is executed in a similar manner to step E2.

[0042] In the next step E21, the mobile device ME sends a participation message ME21 to participate in the "accident" type event. This message ME21 includes the identity of the mobile device, a value corresponding to the "accident" type of the event, and a corresponding region of interest ROI (corresponding to the programmed route of the vehicle in this exemplary embodiment of the present invention).

[0043] It should be noted that since the mobile device ME can identify through the notification message ME17 that there are no other types of events stored in the database of the peripheral server SP1, this message ME21 does not include values corresponding to event types other than "accident". Furthermore, since the mobile device ME corresponds to its geographical location, it sends the participation message only to the peripheral server SP1.

[0044] Meanwhile, if a new type of event occurs in the database of server SP1 (for example, an animal is detected on the road), the "V2X" field of the "paging record" of mobile device ME that is interested in this type of event is updated, and mobile device ME will be notified of this new type of event at the next transmission of a high-speed message called a paging message. Mobile device ME receives a notification with the "V2X" field set to {accident, animal on the road} on this channel. After receiving this notification, the mobile device can include this new type of event in the next subscription message to server SP1.

[0045] Upon receiving message ME21, the peripheral server SP1 transmits a confirmation response message ME22 to the mobile device ME in step E22. Then, the peripheral server SP1 checks whether the stored event is within the region of interest ROI of the vehicle. In this exemplary embodiment, it is assumed that the accident occurred within the region of interest ROI of the vehicle.

[0046] The next step E23 is then the transmission by the peripheral server SP1 of a message ME23 to the mobile device ME that contains information related to the accident, particularly the location of the accident.

[0047] Based on the occurrence status of the events handled by the geo-service, it should be noted that more or less message exchange is required in the MEC architecture network when using the present invention. Specifically · If the accident did not occur within the region of interest of the vehicle, step E23 is not performed, and in this case, the peripheral server does not transmit the corresponding information to the vehicle. · If another type of event occurs within the zone served by the peripheral server SP1 (for example, construction), messages ME17 and ME19 include two values corresponding to the types of "accident" and "construction" in a specific data field "V2X". · If another event of the type included in the list received in step E13 occurs within the zone served by the peripheral server SP2, the peripheral server SP2 sends a message to the relevant base station, and the base station notifies the mobile device ME of the existence of this other event via the "paging" channel. The latter receives this notification only when it enters the coverage of one of these base stations.

[0048] In the last case where another event occurs within the zone served by the peripheral server SP2, in a modified embodiment where the central server SC sends a message containing an event of interest to the mobile device only to the peripheral server SP1 that serves the zone where the vehicle is located, it should be noted that the execution order of the steps is different. In fact, in this version, it is necessary to wait for the vehicle to enter the zone provided by the peripheral server SP2. For this purpose, the central server SC, which has been notified of the movement of the vehicle by the location information service, sends a message containing the event of interest to the peripheral server SP2, and the peripheral server SP2 sends the message to the base stations to which it is connected, and these base stations notify the mobile device ME. If the peripheral server SP2 is connected to the location information service, preferably, in order to further save the network and radio resources, the message is sent only to the base station where the mobile device ME is located, and in some cases, the message is sent only if this other event is located within the zone covered by this base station.

[0049] Referring to FIG. 3, additional steps E30 to E33 are provided when the peripheral server SP1 does not store in the database the event for which the mobile device ME has been requested to receive a notification. In an example of the use of the present invention, for example, it is assumed that a vehicle involved in an accident corresponding to the event notified in step E17 has left the road.

[0050] Next, in step E30, in the database of the peripheral server SP1, the event corresponding to this accident is deleted.

[0051] In the next steps E32 and E33, the peripheral server SP1 transmits messages ME32 and ME33 to the base stations SB2 and SB1 respectively, and requests them to stop inserting "V2X" messages corresponding to "accident" type events into the "paging" channel for the mobile device ME. Then, the base stations SB2 and SB1 release radio resources and memory resources by deleting this notification request from the database. It should be noted that the peripheral device server does not delete the data linked to the mobile device ME for the geo-service in any way unless the mobile device cancels the registration from this geo-service. Therefore, when a new event of interest to the mobile device ME occurs, the peripheral server SP1 can retransmit messages similar to messages ME16 and ME18 to its affiliated base station.

[0052] In a modified embodiment where the peripheral server SP1 is interlocked with the location service, the peripheral server SP1 transmits a message requesting the stop of notification to the mobile device ME only to the base station under the coverage where the mobile device ME is located, through the "paging" channel.

[0053] In the next discontinuous reception cycle DRX of the mobile device ME, the absence of the "V2X" data field in the "paging" channel notifies the disappearance of the accident. On the other hand, if the next "V2X" data field transmitted through the "paging" channel contains a new type of event corresponding to, for example, "work" included in message ME11, the mobile device "ME" can update the subscription request for receiving the corresponding information by transmitting a new message similar to message ME21.

[0054] Referring to FIG. 4, in a modified embodiment of this embodiment where the central server SC interfaces with the location service of the mobile device ME, additional steps E40 to E43 are provided.

[0055] In fact, in this modified embodiment, in order to save radio resources, when the mobile device ME leaves the zone provided by this peripheral server, the central server SC releases the resources allocated to the mobile device ME by the peripheral server. Of course, if the central server SC detects that the mobile device ME has returned to the zone provided by this peripheral server, these resources are reallocated by a message sent from the central server SC to the peripheral server.

[0056] Thus, in step E40, the central server SC detects that the mobile device ME has left the zone provided by the peripheral server SP1.

[0057] In the next step E41, the central server SC sends a message ME41 to the peripheral server SP1. This message ME41 notifies that the mobile device ME has changed the attached peripheral server.

[0058] Upon receiving the message ME41, the peripheral server SP1 sends a message ME42 to the base station SB2 in step E42, and after sending a message ME43 to the base station SB1 in step E43, it deletes the data allocated to the mobile device ME regarding the geo-service from the memory. These messages ME42 and ME43, similar to the messages ME32 and ME33, request the stop of notifying the mobile device ME of the type of events of interest to the mobile device ME via the "paging" channel. Therefore, the base stations SB2 and SB1 release radio resources and memory resources by deleting this notification request from the database.

[0059] In a modified embodiment where the peripheral server SP1 is linked with the location information service, the peripheral server SP1 sends a message requesting the stop of notification to the mobile device ME only to the base station under the coverage where the mobile device ME is located via the "paging" channel.

[0060] It should be noted that in the main modified embodiment, the resources allocated for event notifications to the vehicle are definitely released in the peripheral server and the general base station only when the vehicle is deregistered from the geo-service.

[0061] Furthermore, of course, other modified embodiments of the present invention can be assumed and sometimes combined. For example, as a modified embodiment, the central server SC interfaces with the location service of the mobile device ME, but instead of dynamically allocating resources in different peripheral servers according to the location of the mobile device ME for the mobile device ME, after the registration message ME11, in all peripheral servers that provide services to the region of interest of the mobile device ME, for example, the programmed route, these resources are allocated only once. In this case, the registration message ME11 includes the region of interest ROI of the mobile device ME. In this modified embodiment or another modified embodiment, the peripheral server is interfaced with, for example, a very accurate location information service and can monopolize the resources of the mobile device ME for the geo-service only at the base station to which the mobile device ME is connected.

[0062] Finally, the notification message using the paging channel can be sent to a single mobile device or a group of mobile devices (for example, a group of vehicles subscribing to the same geo-service). ) In this case, the identification information associated with this notification channel and transmitted on this notification channel becomes collective identification information. In this case, a single registration message is sent to the central server for this series of vehicles, for example, via the vehicle management server.

[0063] (Appendix) (Appendix 1) A method for a mobile device to subscribe to information regarding at least one type of event from a notification service linked to the geographical information of a location, wherein the notification service is hosted by a data processing peripheral server of the MEC architecture network, and the method executed on the mobile device is Sending a registration request message requesting registration to the central server of the network; Sending a subscription message requesting subscription to the at least one type of event to a data processing peripheral server; Receiving an information provision message providing information about the at least one type of event to the mobile device, and having: The registration request message indicates the at least one type of event; A method in which the mobile device indicates, in the subscription message, an area of interest for which the data processing peripheral server must send information about at least one type of the event. (Appendix 2) The mobile device is a communication module of a vehicle, and the area of interest corresponds to a route programmed in the vehicle (as described in Appendix 1). (Appendix 3) A method of subscribing a mobile device to information about at least one type of event from a notification service linked to geographical information of a location, the notification service being hosted by a data processing peripheral server of an MEC architecture network, and the method executed by the mobile device is: Sending a registration request message requesting registration to the central server of the network; Sending a subscription message requesting subscription to the at least one type of event to a data processing peripheral server; Receiving an information provision message providing information about the at least one type of event to the mobile device, and having: The registration request message indicates the at least one type of event; Including a sub-step of decoding a data field specific to event notification and having a step of receiving a notification message; The specific data field is included in a data field assigned to the core network and exists in the "paging record" field of the high-speed messaging channel. (Appendix 4) A method for transmitting information about an event of a type to a mobile device by a data processing peripheral server that hosts a notification service linked to the geography of a location within a MEC architecture network, the method being executed in the network, the method comprising: Receiving, by a central server, a registration request message transmitted from the mobile device, the registration request message including at least an indication of the type of the event; Transmitting, by the central server, an event type message indicating at least the type of the event to at least one data processing peripheral server of the network that hosts the notification service; Verifying, by the at least one data processing peripheral server, that an event of the type exists in its database; When the at least one data processing peripheral server includes the event of the type in its database, transmitting, from the at least one data processing peripheral server, a message to at least one base station connected for broadcasting a notification message notifying the presence of the event of the type to the mobile device on a fast messaging channel called a "paging" channel; Receiving, by the at least one peripheral device server, a subscription message for the event of the type transmitted from the mobile device; Transmitting, by the at least one data processing peripheral server, an information-providing message providing information about the event to the mobile device, and The subscription message includes an area of interest, The step of transmitting the information-providing message is conditional on the event being related to the area of interest. (Appendix 5) A method according to (Appendix 4), wherein a data processing peripheral server transmits mobile device information regarding an event of a type, In the step of transmitting the event type message by the central server, the method in which the event type message is transmitted only to the data processing peripheral server of the network that hosts the notification service whose network coverage corresponds to the current or programmed position of the mobile device. (Appendix 6) A method according to (Appendix 5), wherein information regarding an event of a type is transmitted from a data processing peripheral server to a mobile device, The method in which the at least one data processing peripheral server transmits a message (ME16) for broadcasting the notification message to the mobile device only on a high-speed messaging channel to a base station corresponding to the current position or the programmed position of the mobile device. (Appendix 7) A method according to (Appendix 6), wherein information regarding an event of a type is transmitted from a data processing peripheral server to a mobile device, The method in which the at least one data processing peripheral server transmits the message to the at least one base station only when the event is related to a zone covered by the at least one base station. (Appendix 8) A method according to any one of (Appendices 4 to 7), wherein information regarding an event of a type is transmitted from a data processing peripheral server to a mobile device Following the step of transmitting a message for providing information to the mobile device by the data processing peripheral server, when the event becomes stale or when the mobile device leaves the zone served by the at least one data processing peripheral server, the method in which the at least one data processing peripheral server transmits a message to the at least one base station to stop the broadcast of the notification message on the high-speed messaging channel. (Appendix 9) The method according to (Appendix 1 or 4), wherein the area of interest includes the position of a vehicle. (Appendix 10) The step of sending the addition message is conditional on the existence of a preceding step of receiving a notification message that at least one type of event has occurred at the location, corresponding information is stored in the data processing peripheral server, and the notification message is distributed to the mobile device via a high-speed messaging channel called a "paging" channel (as described in Appendix 1 or 3).

Claims

[Claim 1] A method for subscribing a mobile equipment (ME) to information on at least one type of event from a notification service linked to geographical information of a location, said notification service being hosted on a data processing peripheral server (SP) of a MEC architecture network, said method being executed on said mobile equipment (ME), comprising the steps of: - sending (E11) a registration request message (ME11) requesting registration to a central server (SC) of said network; - a step (E21) of sending a subscription message (ME21) addressed to a data processing peripheral server (SP1) for subscription to said at least one event type; receiving a message (ME23) providing information about said at least one event to said mobile device (ME), said registration request message (ME11) indicating said at least one type of event; The method, wherein the step of sending (E21) the subscription message (ME21) is provided that there is a preceding step of receiving a notification message (ME17) that said at least one type of event has occurred at said location, corresponding information being stored in said data processing peripheral server (SP1), and said notification message (ME17) being delivered to said mobile equipment (ME) via a high speed messaging channel, called a "paging" channel.

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