KR20090042125A - Notification handling mechanism under multiple devices environment - Google Patents

Notification handling mechanism under multiple devices environment Download PDF

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Publication number
KR20090042125A
KR20090042125A KR1020070138293A KR20070138293A KR20090042125A KR 20090042125 A KR20090042125 A KR 20090042125A KR 1020070138293 A KR1020070138293 A KR 1020070138293A KR 20070138293 A KR20070138293 A KR 20070138293A KR 20090042125 A KR20090042125 A KR 20090042125A
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South Korea
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terminals
cpm
terminal
server
network
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KR1020070138293A
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Korean (ko)
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예우준
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엘지전자 주식회사
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Abstract

Disclosed is a notification processing procedure in a multi-terminal environment. According to a notification processing procedure according to an embodiment of the present invention, a component capable of directly accessing a terminal, such as a network-based storage server or a CPM user preference server, may include one or more terminals (connections) connected to itself at the time of notification. For the terminal or in-band devices), a notification message is generated and transmitted directly without passing through the CPM chat server. On the other hand, for one or more terminals (unconnected terminal or out-of-band device) that are not connected to the notification point, the network-based storage server or the like requests the CPM chat server to send a notification message instead. In response to this request, the CPM conversation server sends a notification message for the unconnected terminal. At this time, the network-based storage server or the like also transmits the information on the connection terminal to the CPM chat server. According to this embodiment of the present invention, since the CPM chat server only needs to transmit a notification message for the unconnected terminal, the burden of the CPM chat server can be alleviated and unnecessary signaling can be prevented.

Description

Notification handling mechanism under multiple devices environment

The present invention relates to a notification handling mechanism, and more particularly, to a procedure for handling a situation in which a notification message needs to be transmitted in a multi-terminal environment.

IP Multimedia Subsystem (IMS) is attracting attention as a core information and communication technology for providing new multimedia services in Internet Protocol (IP) based next generation communication environment. IMS is a set of nodes that provide various multimedia services and perform call control in the environment of mobile communication network, and integrates IP network and mobile communication environment. Accordingly, the IMS facilitates interoperation between the terminal and the IP network, thereby making it possible to provide multimedia services such as IP-based voice, audio, video, and data using the mobile communication terminal.

One of the signaling protocols that can be used in the IMS network is Session Initiation Protocol (SIP). SIP is an application layer call control protocol for creating, modifying and terminating an IP-based multimedia service session between a user terminal or between a user terminal and an entity having an IP address.

Among the various services provided through the IMS network, the CPM service is an existing multimedia communication service such as a short messaging service (SMS), a multimedia messaging service (MMS), an email service ( E-mail service, Instant Messaging & Presence Service (IMPS), etc. are integrated and provided under the IP base. In addition, unlike the existing individual multimedia communication services provided only through limited networks and terminals, the CPM system enables unified services regardless of the type or number of terminals, media type, network type, and service type. It supports a multiple devices environment (multiple devices environment) that allows a plurality of terminals to use a single address address at the same time.

On the other hand, a messaging service such as a CPM service prescribes a notification procedure. The notification procedure is a procedure in which one component constituting the CPM system (for example, a CPM conversation server or a network-based storage server, etc.) informs other components (for example, a terminal including a CPM client) of certain facts or information. to be. This notification procedure is characterized in that it is a one-way message transmission procedure that does not require a response from the receiver. Hereinafter, this one-way transmission message is referred to as a 'notification message'.

According to the notification processing mechanism that is currently discussed in the CPM system, that is, the notification message transmission procedure, the CPM conversation server is always generated to all the plurality of terminals regardless of the type of the server to generate and transmit the notification message. The sent notification message. That is, the CPM conversation server receives a notification message generated by itself, as well as a notification message generated by other servers, such as a network-based storage server or a CPM user preference server, together with a request for transmission from these servers, and registers the terminal in the CPM system. Or transmit a notification message for the terminal specified as the target terminal in the transmission request.

However, the notification processing procedure in the CPM system under discussion does not consider the characteristics of the CPM system in which each of the plurality of terminals may establish a different relationship with the CPM network. More specifically, the notification processing procedure currently under discussion includes a network-based stored message or a notification message generated by a CPM user preference server as well as a notification message received by the CPM conversation server for all target terminals. Because of this, not only does the burden on the CPM conversation server, but also causes unnecessary signaling.

Therefore, the problem to be solved by the present invention, by considering the connection state of a plurality of terminals in a system supporting a multi-terminal environment, such as a CPM system, a core function for controlling the system, such as session and media control and message processing It is possible to alleviate the burden of a messaging server (eg, a CPM conversation server) that performs the processing, and to provide a procedure for efficiently handling notification by eliminating unnecessary signaling.

According to a notification processing procedure in a multi-terminal environment according to an embodiment of the present invention for solving the above problems, the network storage server or the integrated IP messaging user preference server, etc., the first notification message for each of one or more connected terminals; Create and send directly without going through an integrated IP messaging server. And generating a transmission request message for requesting to transmit a second notification message for each of the one or more unconnected terminals, and then the integrated IP messaging conversation server selects each of the unconnected terminals specified in the transmission request message. Send the request to send message to the integrated IP messaging conversation server, including information about the one or more connected terminals, to send the second notification message.

According to an aspect of the embodiment, before transmitting the first notification message, the process of examining the unconnected terminals and the connected terminals among the terminals registered in the integrated IP messaging conversation server may be further performed.

According to a notification processing procedure in a multi-terminal environment according to another embodiment of the present invention for solving the above problems, the integrated IP messaging server includes information about one or more connected terminals of the network-based storage server, Receive a transmission request message from the network-based storage server requesting transmission of a notification message for each of one or more unconnected terminals of a network-based storage server, and based on the target terminal information specified in the transmission request message. Investigate the one or more unconnected terminals to receive the message, and send the notification message for the unconnected terminal.

According to an aspect of the embodiment, for each of the connected terminals of the network-based storage server, the network-based storage server generates a notification message, and transmits directly without passing through the integrated IP messaging server.

According to an embodiment of the present invention, a notification message generated by a network-based storage server or the like is not transmitted to a CPM conversation server for all terminals, but is connected to the network-based storage server or the like at a specific moment (for example, a notification time point). For the connected terminal, the notification message is directly transmitted without passing through the CPM conversation server. In addition, the network-based storage server or the like requests a CPM chat server to transmit a notification message to an unconnected terminal, and transmits a list of connected terminals to the CPM chat server. According to this embodiment of the present invention, it is possible to relieve the burden on the CPM chat server that performs key functions for controlling the system, such as controlling sessions and media and processing messages. In addition, since the network-based storage server or the like directly transmits a notification message to the connected terminal, the notification processing procedure is efficient.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention can be applied to a system having a multi-terminal environment. An example of such a system is a CPM system, hereinafter, an embodiment of the present invention will be described using the CPM system as an example. However, the embodiment of the present invention should not be limited to being applied only to the CPM system, and is equally applicable to a system supporting a multi-terminal environment.

In a system supporting a multi-terminal environment to which an embodiment of the present invention is applied, for example, a CPM system, a plurality of registered terminals (CPM clients) sharing one CPM address and using the same are configured with components on the CPM network side. Relationships can be different. For example, some terminal (s) among the plurality of registered terminals or some terminal (s) among terminals subscribed to a specific event are temporarily connected to a network-based storage server or the like at a specific time point to store the network-based storage. The server is aware, but the remaining registered terminals (eg, terminal (s) that are not connected to the network-based storage server at the time of notification, even if subscribed to a specific event) are not connected to the network-based storage server at the same time. The network-based storage server may be in a state of not recognizing its existence.

1 is a block diagram illustrating an architecture of a CPM system, which is an example of a system to which a notification management procedure according to an embodiment of the present invention may be applied.

Referring to FIG. 1, the CPM system includes a CPM Conversation Server, a Message & Media Storage, a Converged Address Book, a CPM User Preferences Server, Interworking Function (Interworking Function), and CPM Client (CPM Client). In addition, in addition to the components of such a CPM system, FIG. 1 also shows external entities related to the provision of a CPM service (indicated by dotted rectangles). These components of the CPM system (except for CPM clients present in the terminal) are logical divisions of their functions, and all or some of the components may be physically integrated with each other or may be separately separated and implemented independently. have.

The architecture of the CPM system, the functions of each of the components constituting the CPM system, and an interface between the components are described in OMA-AD-CPM-V1_0-20071004- which is one of the standard documents of the Open Mobile Alliance (OMA). Since D and OMA-RD-CPM-V1_0-20070927-D are described in more detail, a detailed description thereof is omitted here. Hereinafter, the CPM system will be briefly described based on the contents closely related to the embodiments of the present invention, and contents not described herein may be applied to the standardized documents cited above.

Meanwhile, although the CPM system shown in FIG. 1 includes only one CPM client, a CPM system supporting a multi-terminal environment includes one or more CPM clients sharing the same CPM address of the message and media storage server and using the same. It can be included in the CPM system. And as can be seen with reference to Figure 1, these CPM clients can each individually connect with a CPM chat server, a message and media storage server, or a CPM user preference server. Thus, in a CPM system that includes multiple CPM clients, some of the multiple CPM clients that register with the CPM system through the CPM chat server may be individually separate from the message and media storage server and / or the CPM user preference server at a particular moment. You may stay connected, but the rest of the CPM clients may not stay connected to these servers individually.

In this case, the message and media storage server or CPM user preference server knows the presence of some registered CPM clients that are connecting to it at that particular moment. On the other hand, the message and the media storage server, etc. can not know the status of the remaining registered CPM clients, such as whether or not registered in the CPM system. However, since the CPM conversation server handles the registration and control of CPM clients and manages CPM sessions, the CPM conversation server can know the status of all CPM clients registered in the CPM system.

In the following embodiment of the present invention, as in the former case, the fact that the message and the media storage server and the like are registered because the connection state of the message and the media storage server is maintained at a specific moment (for example, when the notification message is transmitted). Known CPM clients are called 'connected terminals' or 'in-band terminals'. On the other hand, as in the latter case, a terminal having a CPM client whose message and media storage server, etc. do not know the registration status because it is not maintaining a connection state with the message and media storage server at a specific moment is 'unconnected terminal'. Or 'out-of-band terminal'.

2 is a block diagram illustrating some components of a CPM system for explaining a notification processing procedure in a multi-terminal environment according to an embodiment of the present invention. Referring to FIG. 2, the CPM system includes a plurality of terminals 12 and 14, a CPM Conversation Server 20, and a network-based storage server 30. do.

Each of the terminals 12 and 14 is a device for connecting to a mobile communication network and communicating with a functional entity on a network such as another terminal or an IMS network, and the name thereof is not particularly limited. For example, the terminals 12 and 14 may be a device, a user equipment in a universal mobile telecommunication system (UMTS), a global system for mobile communication (GSM), or an inter standard-95 (IS-95). It may be called a mobile station (MS), etc., but is not limited thereto. The disclosed terminals 12 and 14 both share the same CPM address and are used together, and are all registered terminals registered in the CPM system and / or targets of notification messages transmitted from the network-based storage server 30 or the like. It may be terminals.

Of the terminals 12, 14 shown in FIG. 1, the first terminal 12 consists of one or more terminals, other components of the CPM system except for the CPM conversation server 20, such as network-based storage. It consists of connected terminals or in-band terminals of the server 30 or CPM user preference server (not shown). That is, each terminal constituting the first terminals 12 may be temporarily connected to the network-based storage server 30 or the like in order to use the network-based storage server 30 or the like. The reason why the first terminals 12 are connected to the network-based storage server 30 is not limited. For example, since each of the first terminals 12 is subscribed to a predetermined event, it may be connected to the network-based storage server 30 or the like at a specific moment for the event, in which case the network-based storage server ( 30 and the like recognize that each of the first terminals 12 is registered in the CPM system.

On the other hand, of the terminals 12 and 14 shown in FIG. 1, the second terminal 14 is configured as one or more terminals, each of which has a different configuration of the CPM system except for the CPM conversation server 20. Element, such as an unconnected terminal or out-of-band terminal of a network-based storage server 30 or a CPM user preference server (not shown). That is, only the CPM conversation server recognizes that each of the second terminals 14 is registered in the CPM system at a specific moment (for example, when the notification message is transmitted), and includes the network-based storage server 30 and the like. The other component (the component which is responsible for generating the notification message) has no information as to whether or not each of the second terminals 14 is registered in the CPM system.

These terminals 12 and 14 basically include a controller, a CPM client, and a transceiver. The controller is an entity for controlling the operation of functional entities (eg, a CPM client, a user interface (UI), a transceiver, etc.) inside the terminals 12 and 14. The transceiver is an entity for allowing the terminals 12 and 14 to transmit and receive various signals through the mobile communication network.

The CPM client is a functional entity on the terminal 12, 14 side that supports the CPM service. To this end, the CPM client supports various communication protocols, including SIP, to communicate with other components of the CPM system, such as the CPM chat server 20 or the network-based storage server 30. For example, the CPM client generates and receives a SIP request or response, and receives a notification message transmitted from the CPM conversation server 20 or the network-based storage server 30. The CPM client performs functions related to CPM service logic on the client side, for example, a function of generating and receiving a CPM message and functions related to CPM session processing.

The CPM dialog server 20 performs core CPM server functions for realizing all communication in the CPM service, user preferences and service provider policies, and the like for session and media control and message processing between the home network and the CPM network. Provides functions The CPM Conversation Server logically includes user specific functions such as CPM Participating Function (CPM), CPM Conversation History Function, and CPM Deferred Messaging Function. It includes a common controlling function such as a CPM Controlling Function. Here, user specific functions are provided for the user involved in initiating and terminating the request, and when the CPM chat server provides common control functionality, it typically terminates the incoming request and distributes the request to multiple recipients or groups communication. Can handle

In particular, the participation capability (PF) of the CPM chat server 20 controls sessions and media and also processes messages according to service capabilities, user preferences, service provider policies, and the like. For example, the CPM Join feature registers a CPM client for CPM users, manages and handles the initiation, modification, and termination of CPM sessions with CPM clients that register or request registration. Apply user preferences.

The participation function PF of the CPM conversation server 20 transmits a notification message for the terminals 12 and 14 registered in the CPM system. The notification message may be a message directly generated by the participation function PF or a message requested to be transmitted by another function entity (eg, a delay messaging function) included in the CPM conversation server 20. Alternatively, the notification message may be a message requested to be transmitted by another component of the CPM system, for example, the network-based storage server 30, the CPM user preference server (not shown), or an interworking function (not shown).

In this case, the participation function (PF) of the CPM chat server 20 does not transmit a notification message to all the terminals 12 and 14, but some terminals in consideration of the service provider's policy or preference information set by the CPM user. You can also send a notification message only. In addition, even if a request for transmission of a notification message is received from another component of the CPM system (eg, the network-based storage server 30 or the like) or another functional entity of the CPM conversation server 20, all registered terminals 12 and 14 may receive the notification message. For example, the notification message may be transmitted, or the notification message may be transmitted only for some registered terminals (eg, unconnected terminals 12). In the latter case, the CPM conversation server transmits the notification message only to unconnected terminals 12 that should receive the notification message according to the information about the target terminal included in the transmission request signal from the network-based storage server 30 or the like. do. Information about the connection terminal 14 is received from the network-based storage server 30 or the like, and used for transmission management or session management of the notification message.

The network-based storage server 30 is a functional entity for storing and managing messages and media on a network. The network-based storage server 30 illustrated in the CPM system of FIG. 2 exemplarily shows a functional entity for generating and transmitting a notification message for the terminals 12 and 14, and via the CPM conversation server 20. If it is possible to directly connect to the registration terminals (12, 14), respectively, without being able to generate a notification message for the terminals (12, 14) and transmit directly, the network shown in the other components or functional entities of the CPM system It is also possible to replace the underlying storage server 30.

When the following situation occurs, the network-based storage server 30 may generate a notification message for notifying the corresponding fact and transmit the notification message to the terminals 12 and 14. According to an embodiment of the invention, the network-based storage server 30 directly sends a notification message for one or more connected terminals 14, but for the other unconnected terminals 12, the CPM chat server 20. Request the transmission of the notification message, the CPM chat server 20 transmits the notification message. In this case, the network-based storage server 30 requests the CPM conversation server 20 to transmit the notification message by attaching a list of connected terminals 14, that is, terminals which have sent the notification message directly.

The following items exemplify types of notification messages generated and transmitted by the network-based storage server 30 when a predetermined event occurs, and the like is not limited to this type of notification message. It is obvious to those skilled in the art.

Notification of the arrival of new CPM Messages, CPM Session Histories, and Media in the Network based on user preferences and service provider policies based on new CPM messages, CPM session history, and media -based Storage, based on user-preferences and service provider policies.

Notification of storage overflows in the Network-based Storage.

Notification of modifications to access permissions.

Notification of actions performed on the Network-based Storage.

Next, a notification processing procedure according to an embodiment of the present invention in the above-described CPM system will be described with reference to FIG. 3 is an example of a message flow diagram illustrating a notification processing procedure according to an exemplary embodiment of the present invention. This is a case where a notification message is transmitted for unconnected terminals. Hereinafter, one or more unconnected terminals (terminal ①, terminal) of the network-based storage server 30 from among a plurality of registered terminals and / or a plurality of registered terminals subscribed to the same event using the same CPM address. ②, a set of terminals composed of terminals ③ is called a first terminal 12, and a set of terminals composed of one or more connected terminals (terminal ④, terminal ⑤) of the network-based storage server 30 is called a second terminal ( 14).

Referring to FIG. 3, when a situation or event occurs in which the network-based storage server 30 needs to transmit a notification message, the network-based storage server 30 first subscribes to a terminal (or an event that needs to receive the notification message). Among the terminals), the unconnected terminal and the connected terminal are examined (S101). The situation in which a notification message should be sent to the network-based storage server 30 includes, for example, when a new CPM message, a CPM session history, and media arrive, or when an overflow occurs in the network-based storage server. The case may be a case where a predetermined action is performed in the network-based storage server, but is not limited thereto.

The network-based storage server 30 generates a notification message for notifying that a predetermined event has occurred (S102). The target terminal of the notification message is the connection terminal (s) of the network-based storage server 30 at that time. According to an embodiment of the present invention, the notification message may be a message using a SIP request method, for example, a SIP MESSAGE message or a SIP NOTIFY message. 4 is a diagram illustrating an example of a format for a SIP MESSAGE message as an example of such a SIP request method. Referring to FIG. 4, the SIP MESSAGE message is a notification message for notifying that a new CPM message has arrived, and includes 'A new CPM Message arrived' as information for notifying the fact. It is not limited only to.

The network-based storage server 30 transmits the generated notification message for each of the connection terminals 14 (S103). Since the network-based storage server 30 knows that the connection terminals 14 are registered in the CPM system at the time when the notification message is to be transmitted, the notification message may be transmitted for each of the connection terminals 14. have. As described above, according to the embodiment of the present invention, the network-based storage server 30 does not transmit a notification message to the connection terminal 14 of the network-based storage server 30 via the CPM conversation server 20. Send a notification message directly. Protocols that may be used in this step may be, for example, Request For Comments (RFC) 2177 or RFC3261, but the present embodiment is not limited thereto.

Next, the network-based storage server 30 generates a transmission request signal or a delivery request message for requesting the transmission of the notification message (S104). The transmission request message is for requesting the CPM conversation server 20 to transmit the notification message for the unconnected terminals 12 of the network-based storage server 30, and there is no limitation in the format thereof. For example, the transmission request message may be generated according to a protocol (eg, SIP method) that defines communication between the CPM conversation server 20 and the network-based storage server 30.

In addition, the transmission request message includes information about target terminals (ie, unconnected terminals 12) of the notification message, and the format in which the information is included is not limited. According to an embodiment of the present invention, the CPM conversation server 20 is not connected to all the terminals 12 and 14 registered or subscribed to the event, that is, the unconnected terminals 12 of the network-based storage server 30, that is, the transmission Since the notification message only needs to be transmitted to the terminal (s) specified in the request message, the burden on the CPM conversation server 20 in processing a large number of signals can be alleviated.

The transmission request message includes information about terminals to which the network-based storage server 30 directly sends a notification message or terminals to be transmitted, that is, connection terminals 14. The information about the connection terminals 14 may be, for example, a list of IDs of the connection terminals 14, but the present embodiment is not limited thereto. The information about the connection terminals 14 is for informing the CPM conversation server 20 information about a terminal to which the network-based storage server 30 directly sends a notification message, and the CPM conversation server 20 connects. It can be seen that the notification messages are sent directly from the network-based storage server 30 to the remaining terminals except the terminals 14, that is, the unconnected terminals 12. In addition, the CPM conversation server 20 performs a management procedure such as a session or a service related to notification of the corresponding event by using the received information.

According to one aspect of the present embodiment, there is no limitation in the order of the step S103 for transmitting the notification message for the connection terminal 14 and the step S104 for generating the transmission request message. For example, step S103 and step S104 may proceed sequentially, in reverse order, or simultaneously. In FIG. 3, step S103 is displayed twice to indicate this, but the overlapping illustration of FIG. 3 does not indicate that the same notification message is repeatedly transmitted for each of the connection terminals 14.

3, the network-based storage server 30 transmits the generated transmission request message to the CPM conversation server 20 (S105). As described above, the transmission request message includes information (eg, ID list) about the connection terminals 14 of the network-based storage server 30. According to the embodiment of the present invention, the notification message generated in step S102 may also be transmitted to the CPM conversation server 20 in this step or may be continuously transmitted after the transmission message. Alternatively, in some embodiments, only information to be inserted into the notification message may be included in the transmission request message and transmitted.

In addition, the CPM dialog server 20 receiving the transmission request message checks a terminal, that is, an unconnected terminal, to receive the transmission request notification message (S106). This step may be performed using information on the target terminal of the notification message included in the received transmission request message, but is not limited thereto.

Subsequently, the CPM conversation server 20 transmits a notification message for receiving the transmission request for each of the unconnected terminals 12 of the network-based storage server 30 (S107). As such, according to an embodiment of the present invention, the CPM chat server 20 is an unconnected terminal of the network-based storage server 30, not all terminals 12 and 14 registered and / or subscribed to a specific event. Send a notification message for network-based storage server 30 only for 12. The protocol that may be used in this step may be, for example, RFC3261, but the present embodiment is not limited thereto.

The embodiments of the present invention described in detail above are merely illustrative of the technical idea of the present invention, and should not be construed as limiting the technical idea of the present invention by the embodiments. The protection scope of the present invention is specified by the claims of the present invention described later.

1 is a block diagram illustrating the architecture of a CPM system.

2 is a block diagram illustrating some components of a CPM system for explaining a notification management procedure in a multi-terminal environment according to an embodiment of the present invention.

3 is a message flow diagram illustrating a notification management procedure according to an embodiment of the present invention.

4 illustrates an example of a format of a notification message to be transmitted for all registered terminals by a network-based storage server according to an embodiment of the present invention.

Claims (7)

  1. Generate a first notification message for each of the one or more connected terminals and send it directly without passing through the integrated IP messaging server,
    Generate a transmission request message for requesting to transmit a second notification message for each of the one or more unconnected terminals, and
    Integrating the transfer request message by including information about the one or more connected terminals such that the integrated IP messaging conversation server sends the second notification message for each of the unconnected terminals specified in the transfer request message. Notification processing method in a multi-terminal environment including transmitting to the IP messaging chat server.
  2. The multi-terminal of claim 1, further comprising: examining the unconnected terminals and the connected terminals among terminals registered with the integrated IP messaging conversation server before transmitting the first notification message. How notifications are handled in the environment.
  3. 3. The terminal of claim 2, wherein the unconnected terminal is a terminal not connected to a transmitting entity of the first transmission message among the registered terminals, and the connected terminal is the first transmission message among the registered terminals. A notification processing procedure in a multi-terminal environment, characterized in that the terminal is in a state of being connected to a support transmission entity.
  4. The notification in the multi-terminal environment of claim 1, wherein the transmitting of the transmission request message comprises transmitting the second notification message by including it in the transmission request message or continuously transmitting the second notification message. Treatment method.
  5. Information regarding one or more connected terminals of a network-based storage server is included, and a transmission request message requesting transmission of a notification message for each of the one or more unconnected terminals of the network-based storage server is received from the network-based storage server. Receive,
    Investigate the one or more unconnected terminals that will receive the notification message based on target terminal information specified in the transmission request message, and
    And transmitting the notification message to the unconnected terminal.
  6. The multi-terminal environment of claim 5, further comprising: examining the unconnected terminals and the connected terminals among registered terminals before the network-based storage server transmits the transmission request message. How notifications are handled.
  7. 6. The method of claim 5, wherein the notification message is received by being included in the transmission request message from the network-based storage server or continuously received with the transmission message.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9686819B2 (en) 2013-09-24 2017-06-20 Xiaomi Inc. Methods, devices and systems for router access control

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9686819B2 (en) 2013-09-24 2017-06-20 Xiaomi Inc. Methods, devices and systems for router access control

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