KR20240048436A - Electronic device for performing data communication and method of operating the same - Google Patents

Abstract

Disclosed is an electronic device including an interface and at least one processor. At least one processor connects a data session for cellular data communication using a wireless modem device connected through an interface, and extends the at least one lifetime for the data session until a specified point in time prior to expiration of the at least one lifetime. determines whether the at least one lifetime is updated, and if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, transmits a signal requesting IP reconfiguration to the wireless modem device, and It may be configured to receive a second RA message from the device and update the at least one lifetime based on the second RA message. Various other embodiments are possible.

Description

Electronic device for performing data communication and method of operating the same {ELECTRONIC DEVICE FOR PERFORMING DATA COMMUNICATION AND METHOD OF OPERATING THE SAME}

Embodiments of the present disclosure relate to an electronic device that performs data communication and a method of operating the same.

With the continued popularization of various portable devices and the continuous development of communication technology, various data communication methods are being developed. Users may use a variety of electronic devices in their daily lives. A mobile broad band (MBB) device or MBB modem is a portable wireless modem device that can connect electronic devices to the Internet.

A wireless modem device may communicate with a host based on a designated interface (e.g., a network adapter interface). A wireless modem device may be connected to a host (e.g., an electronic device) through a network adapter interface, and a user may use the electronic device to access desired services of a wireless network (e.g., an Ethernet, broadband network, or cellular network). You can. A wireless modem device can transfer packets related to connection and user traffic between an electronic device and a wireless network.

The electronic device and its operating method according to embodiments of the present disclosure can perform data communication through a wireless modem device such as a mobile broadband (MBB) device.

An electronic device according to an embodiment may include an interface and at least one processor functionally connected to the interface. The at least one processor may be configured to connect a data session for cellular data communication using a wireless modem device connected through the interface. The at least one processor may be configured to receive a first router advertisement (RA) message through the data session. The at least one processor may be configured to obtain at least one lifetime for the data session from the first RA message. The at least one processor may be configured to determine whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The at least one processor may be configured to transmit a signal requesting IP reconfiguration to the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. . The at least one processor may be configured to receive a second RA message from the wireless modem device after transmitting the signal requesting IP reconfiguration. The at least one processor may be configured to update the at least one lifetime based on the second RA message.

An electronic device according to an embodiment may include an interface and at least one processor functionally connected to the interface. The at least one processor may be configured to connect a data session for cellular data communication using a wireless modem device connected through the interface. The at least one processor may be configured to receive a first router advertisement (RA) message through the data session. The at least one processor may be configured to obtain at least one lifetime for the data session from the first RA message. The at least one processor may be configured to determine whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The at least one processor is configured to transmit a router request (RS) message to the router through the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. It can be. The at least one processor may be configured to receive a second RA message from the router through the wireless modem device after transmitting the RS message. The at least one processor may be configured to update the at least one lifetime based on the second RA message.

According to one embodiment, a method of operating an electronic device connected to a wireless modem device may include connecting a data session for cellular data communication using the wireless modem device. The method may include receiving a first router advertisement (RA) message through the data session. The method may include obtaining at least one lifetime for the data session from the first RA message. The method may include determining whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The method may include transmitting a signal requesting IP reconfiguration to the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. The method may include receiving a second RA message from the wireless modem device after transmitting a signal requesting IP reconfiguration. The method may include updating the at least one lifetime based on the second RA message.

According to one embodiment, a method of operating an electronic device connected to a wireless modem device may include connecting a data session for cellular data communication using the wireless modem device. The method may include receiving a first router advertisement (RA) message through the data session. The method may include obtaining at least one lifetime for the data session from the first RA message. The method may include determining whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The method may include transmitting a router request (RS) message to a router through the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. there is. The method may include receiving a second RA message from the router through the wireless modem device after transmitting the RS message. The method may include updating the at least one lifetime based on the second RA message.

According to one embodiment, a non-transitory computer-readable storage medium storing one or more programs, wherein when the one or more programs are executed by at least one processor of an electronic device, the electronic device: uses a wireless modem device to retrieve cellular data Connect a data session for communication, receive a first router advertisement (RA) message through the data session, obtain at least one lifetime for the data session from the first RA message, and Determine whether the at least one lifetime is updated by a specified time before expiration of the at least one lifetime, and if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, Includes instructions configured to transmit a signal requesting IP reconfiguration to the wireless modem device, receive a second RA message from the wireless modem device, and update the at least one lifetime based on the second RA message. can do.

According to one embodiment, a non-transitory computer-readable storage medium storing one or more programs, wherein when the one or more programs are executed by at least one processor of an electronic device, the electronic device: uses a wireless modem device to retrieve cellular data Connect a data session for communication, receive a first router advertisement (RA) message through the data session, obtain at least one lifetime for the data session from the first RA message, and Determine whether the at least one lifetime is updated by a specified time before expiration of the at least one lifetime, and if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, Send a Router Request (RS) message to a router through the wireless modem device, receive a second RA message from the router through the wireless modem device, and determine the at least one lifetime based on the second RA message. It may contain instructions configured to update.

FIG. 1 is a diagram illustrating the connection between a bus modem device and an electronic device according to an embodiment.
Figure 2 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Figure 3 is a block diagram of a wireless modem device according to an embodiment of the present disclosure.
FIG. 4 is a diagram illustrating the connection between an electronic device and a wireless modem device according to an embodiment.
Figure 5 shows a signal flow diagram to explain a situation in which an RA message is not received according to an embodiment.
FIG. 6 is a diagram for explaining the configuration of an electronic device and a wireless modem device according to an embodiment.
FIG. 7 is a flowchart illustrating the operation of an electronic device that requests IP reconfiguration before expiration of the lifetime, according to an embodiment.
FIG. 8 is a signal flow diagram illustrating a procedure for detecting imminent expiration of a lifetime according to an embodiment.
Figure 9 is a signal flow diagram to explain a procedure for requesting IP reconfiguration according to an embodiment.
FIG. 10 is a flowchart illustrating the operation of an electronic device that requests network connection information before expiration of the lifetime, according to an embodiment.
FIG. 11 is a signal flow diagram illustrating a procedure for requesting network connection information according to an embodiment.
FIG. 12 is a block diagram of an electronic device 1201 in a network environment 1200 according to various embodiments.

FIG. 1 is a diagram illustrating the connection between a bus modem device and an electronic device according to an embodiment.

Referring to FIG. 1, the electronic device 100 may use cellular data communication through a wireless modem device 110, such as an MBB device or an MBB modem. Electronic device 100 may include, for example, a desktop computer, laptop, or tablet. In one embodiment, the wireless modem device 110 may be connected to the electronic device 100 using a universal serial bus (USB) or peripheral component interconnect bus (PCI) express, and may be connected to an access network, such as a cellular network (as shown). It may be connected to the data network 120 (for example, the Internet) through a network (not connected). The wireless modem device 110 may exchange packets related to the connection of the electronic device 100 with a network node (eg, router 125) of the data network 120.

In one embodiment, the wireless modem device 110 may use a standard protocol according to the communications device class (CDC) specified by the USB implementers forum (USB-IF) to support USB to Serial or USB to Ethernet. CDC may include subclasses such as abstract control model (ACM), ethernet networking control model (ECM), ethernet emulation model (EEM), network control model (NCM), or mobile broadband interface model (MBIM). In one embodiment, a USB-based wireless modem device 110 that supports Ethernet communication and Internet access using a cellular network may be connected to the electronic device 100 using the MBIM protocol. In one embodiment, to support the data rate of a high-speed cellular network such as a 5G network, the wireless modem device 110 may be connected to the electronic device 100 using PCI Express (PCIE) instead of USB.

Figure 2 is a block diagram of an electronic device according to an embodiment of the present disclosure.

Referring to FIG. 2, the electronic device 100 (e.g., the electronic device 1201 of FIG. 12) includes a communication circuit 202 (e.g., the communication module 1290 of FIG. 12), a processor (e.g., processing Circuit) 204 (e.g., processor 1220 in FIG. 12), memory 206 (e.g., memory 1230 in FIG. 12), interface 208 (e.g., interface 1277 in FIG. 12) ), or a display 210 (for example, the display module 1260 of FIG. 12). The configuration of the electronic device 100 is not limited to the example shown. Depending on embodiments, the electronic device 100 may include more or fewer components than the aforementioned components. Additionally, depending on the embodiment, at least one of the communication circuit 202, processor 204, memory 206, interface 208, or display 210 may be combined or separated.

The communication circuit 202 may transmit and receive wireless signals to and from an external electronic device (not shown) using at least one antenna. Communication circuitry 202 may include at least one of a transmit circuit or a receive circuit. The transmission circuit may include a radio frequency (RF) transmitter that frequency up-converts and amplifies the transmitted signal. The receiving circuit may include an RF receiver that performs low-noise amplification and frequency down-conversion of the received signal. The communication circuit 202 may receive a signal through a wireless channel, output it to the processor 204, and transmit the signal output from the processor 204 through a wireless channel. In one embodiment, communications circuitry 202 supports short-range wireless communications methods, such as Bluetooth or Wi-Fi, and/or supports a legacy cellular network, a 5G network, a next-generation communications network, the Internet, or a computer network (e.g., a LAN or WAN). ) can support long-distance communication methods such as In one embodiment, the electronic device 100 may not support a communication function, and the communication circuit 202 may be omitted.

The processor 204 may include (or execute) a modem and software modules that can operate according to at least one or a combination of the embodiments of the present disclosure. The processor 204 may perform or control an operation of the electronic device 100 to perform at least one or a combination of the embodiments of the present disclosure. Processor 204 may include at least one processing circuit. In one embodiment, the processor 204 may include at least one of a communication processor (CP) that performs control for communication or an application processor (AP) that controls a higher layer (eg, an application). In one embodiment, the CP may include a modem.

The memory 206 may store control information (e.g., network connection information obtained from the electronic device 100) or data, data required for the operation of the processor 204, and data generated through the operation of the processor 204. It can have areas for storing data.

Interface 208 may support one or more designated protocols that can be used to connect electronic device 100 directly (e.g., wired) or wirelessly with an external electronic device (e.g., wireless modem device 110). there is. According to one embodiment, the interface 208 may include a USB interface and/or a PCI Express interface.

The display 210 may visually provide information to the outside of the electronic device 100 (eg, a user). The display 210 may include, for example, a display module, a hologram device, or a projector and a control circuit for controlling the device. According to one embodiment, the display 210 may include a touch sensor configured to detect a touch, and/or a pressure sensor configured to measure the intensity of force generated by the touch. According to one embodiment, the display 210 may visually display information related to network connection and/or network status.

Figure 3 is a block diagram of a wireless modem device according to an embodiment of the present disclosure.

Referring to FIG. 3, the wireless modem device 110 (eg, MBB device) may include at least one of a communication circuit 302, a processor 304, a memory 306, or an interface 308. The configuration of the wireless modem device 110 is not limited to the example shown. Depending on embodiments, the electronic device 110 may include more or fewer components than the aforementioned components. Additionally, depending on the embodiment, at least one of the communication circuit 302, processor 304, memory 306, or interface 308 may be combined or separated.

The communication circuit 302 may transmit and receive wireless signals to and from an external electronic device (not shown) using at least one antenna. Communication circuit 302 may include at least one of a transmit circuit or a receive circuit. The transmission circuit may include a radio frequency (RF) transmitter that frequency up-converts and amplifies the transmitted signal. The receiving circuit may include an RF receiver that performs low-noise amplification and frequency down-conversion of the received signal. The communication circuit 302 may receive a signal through a wireless channel, output it to the processor 304, and transmit the signal output from the processor 304 through a wireless channel. In one embodiment, communication circuitry 302 supports short-range wireless communication methods such as Bluetooth or Wi-Fi, and/or supports a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN). ) can support long-distance communication methods such as

The processor 304 may include (or execute) a modem and software modules that can operate according to at least one or a combination of the embodiments of the present disclosure. The processor 304 may perform or control the operation of the wireless modem device 110 to perform at least one or a combination of the embodiments of the present disclosure. Processor 204 may include at least one processing circuit. In one embodiment, the processor 204 may include at least one of a CP that performs control for communication or an AP that controls a higher layer (eg, an application). In one embodiment, the CP may include a modem (e.g., modem 622).

The memory 306 may store control information (e.g., network connection information obtained from the wireless modem device 110) or data, data necessary for the operation of the processor 304, and through the operation of the processor 304. It may have areas for storing generated data.

Interface 308 may support one or more designated protocols that may be used to connect wireless modem device 110 to an external electronic device (e.g., electronic device 100) directly (e.g., wired) or wirelessly. there is. According to one embodiment, the interface 308 may include a USB interface and/or a PCI Express interface.

The electronic device 100 using the wireless modem device 100 supporting the 5G communication method can perform cellular data communication using an Internet protocol (IP) address (e.g., an IP version 6 (IPv6) address). .

There are three major IPv6 address allocation methods: First, manual configuration may mean that an administrator or user directly inputs the IPv6 address. Second, SLAAC (stateless address auto configuration) may refer to a method in which the electronic device 100 automatically acquires an IPv6 address without a DHCP (dynamic host configuration protocol) server. Third, stateful address auto configuration may refer to a method in which a DHCP server automatically assigns an IPv6 address to the electronic device 100.

<Table 1> below is intended to explain the address allocation methods of IPv4 and IPv6.

division Address allocation method Address allocation entity IPv4 Manual Configuration Operator Dynamic Auto Configuration DHCP server IPv6 Manual Configuration Operator Stateless Address Auto Configuration Router Stateful Address Auto Configuration DHCP server

Among the methods in <Table 1>, the wireless modem device 110 may use the SLAAC method. The SLAAC method provides an IPv6 address to the electronic device 100, and can use the neighbor discovery protocol (NDP) defined in Internet control message protocol version 6 (ICMPv6) to secure the validity of the IPv6 address. ICMPv6 may stand for Internet Control Message Protocol for IPv6. ICMPv6 can provide NDP messages to allocate IPv6 addresses and ensure validity.

NDP messages may include a router solicitation (RS) message and a router advertisement (RA) message. The RA message may include network connection information such as default router, router lifetime, retransmission timer, maximum transmission unit (MTU), or prefix information of the IP address, and is sent to the data network 120 ( For example, it may be transmitted from the router 125). The prefix information may include at least one of an IP address, a prefix of an IP address, a valid lifetime, or a preferred lifetime. In one embodiment, router 125 may send an RA message to indicate that its IP address is available for routing.

RA messages can be divided into unsolicited RA messages transmitted periodically from the data network 120 and solicited RA messages transmitted in response to RS messages transmitted by the electronic device 100. there is. The RS message may be transmitted from the electronic device 100 to receive an RA message from the data network 120. The electronic device 100 may transmit an RS message to inform routers (eg, routers 125) of the data network 120 of the existence of the electronic device 100. The router 125 may be configured to receive the RS message and transmit a Solicited RA message in response.

The electronic device 100 may be connected to the wireless modem device 110 (eg, MBB device) using, for example, the MBIM protocol for cellular network connection. In MBIM, each device service can be identified by a universally unique identifier (UUID). Commands (eg, command identifiers (CIDs)) exchanged between the electronic device 100 and the wireless modem device 110 may include a UUID that identifies the data service being delivered.

FIG. 4 is a diagram illustrating the connection between an electronic device and a wireless modem device according to an embodiment.

Referring to FIG. 4 , in operation 402, the wireless modem device 110 may transmit a network status notification message including the network status of the data network 120 to the electronic device 100. In one embodiment, the network status notification message may include at least one of MBIM_CID_RADIO_STATE indicating the wireless power state of the wireless modem device 110, or MBIM_CID_PACKET_SERVICE indicating the attach or detach state of the packet service. .

In operation 404, the electronic device 100 may transmit a data connection request message to the wireless modem device 110. The data connection request message may include MBIM_CID_CONNECT including information for activating a specified data session. The MBB device 110 may activate a designated data session (for example, an already connected IP data session or a newly connected IP data session) for the electronic device 100 in response to the data connection request message. In operation 406, the MBB device 110 may transmit a data connection response message to the electronic device 100. The data connection response message may include MBIM_CID_CONNECT indicating the activation status of a data session activated for the electronic device 100.

In operation 408, the MBB device 110 may transmit an IP configuration notification message to the electronic device 100. The IP configuration notification message may include MBIM_CID_IP_CONFIGURATION_INFO indicating IP configuration information of the link layer for the data session. In operation 410, the electronic device 100 may confirm that a data session is connected based on receipt of the IP configuration notification message. The electronic device 100 may perform data communication through the data session.

In operation 412, the electronic device 100 may transmit an RS message to request network connection information of ICMPv6 to the wireless modem device 110, and the RS message may be transmitted to the router in the data network 120 through the MBB device 110. You can reach (125). The network connection information may include, for example, at least one of the valid lifetime of an IP address or the router lifetime. In operation 414, the electronic device 100 may receive an RA message (e.g., a Solicited RA message) in response to the RS message. In operation 416, the electronic device 100 receives network connection information (e.g., a Solicited RA message) from the RA message. By obtaining a valid IP address and/or gateway information, establishment of a network connection can be completed, thereby enabling the electronic device 100 to exchange data packets and communicate with the data network 120.

The RA message (for example, the Solicited RA message in operation 414) received by the electronic device 100 may include at least one of the valid lifetime of the IP address or the router lifetime. For example, the effective lifetime of an IP address may be 2,592,000 seconds. For example, the router lifetime may be 21,840 seconds. When the valid lifetime or router lifetime expires, the IP address or the router (e.g., router 125) can no longer be used, and the electronic device 100 is connected to the data network 120 (e.g., router ( Packet exchange with 125)) cannot be performed.

The router 120 may periodically transmit an Unsolicited RA message before the IP address and router lifetime included in the previously transmitted RA message expire. The electronic device 100 updates the valid lifetime of the IP address and/or the router lifetime based on the Unsolicited RA message, and associates and secures the validity of the IP address and the router 125 to continuously perform data communication. You can.

The electronic device 100 may connect to a data network (e.g., a non-transmission in the network, packet traffic, or an error in the data flow) or before the IP address and router lifetime expire for various reasons (e.g., at least one of network non-transmission, packet traffic, or errors in the data flow) or unknown reasons. For example, the RA message transmitted from the router 125 may not be received. After the valid lifetime of the IP address in the electronic device 100 expires or the router lifetime expires, the electronic device 100 transmits packets even though the data session through the wireless modem device 110 is active. may no longer be able to be performed.

Figure 5 shows a signal flow diagram to explain a situation in which an RA message is not received according to an embodiment.

Referring to FIG. 5, in operation 502, the electronic device 100 may connect a data session through, for example, the operations of FIG. 5. In operation 504, the electronic device 100 may transmit an RS message to the router 125 through the wireless modem device 110. In operation 506, the electronic device 110 receives an RA message (e.g., a Solicited RA message) including the valid lifetime of the IP address and/or the router lifetime from the router 125 through the wireless modem device 110. You can.

In operation 508, the electronic device 100 may obtain an IP address from the RA message. In operation 510, the electronic device 100 may perform normal cellular data communication with the router 125 through the MBB device 110 using the IP address.

In operation 512, the router 125 periodically transmits an RA message (e.g., an Unsolicited RA message), but due to some reason (e.g., at least one of a network failure, packet traffic overload, or error in the data flow), the electronic device (100) may not receive the RA message.

In operation 514, the electronic device 100 may confirm that the lifetime (eg, at least one of the valid lifetime or the router lifetime) has expired. In operation 516, the electronic device 100 may not be able to perform normal cellular data communication as the lifetime expires.

In one embodiment, the electronic device 100 may be configured to request an RA message when at least one of the generation conditions in <Table 2> below is satisfied.

- When the interface between the electronic device 100 and the wireless modem device 110 is initialized at system startup time,
- After a temporary interface failure, or when the interface between the electronic device 100 and the wireless modem device 110 is temporarily disabled by system management and then reinitialized
- When the IP forwarding function is turned off by system management
- When the electronic device 100 is connected to the wireless modem device 110 for the first time
- When the electronic device 100 is briefly disconnected from the wireless modem device 110 and then reconnected

Based on <Table 2>, even though the data session of the electronic device 100 is connected, when the Unsolicited RA message is not continuously received from the router 125, the electronic device 100 no longer receives data. Communication may not be possible.

Embodiments of the present disclosure are in a state in which data packet communication is impossible due to loss of validity of the IP address and router (e.g., router 125) due to non-reception of the RA message while the data session of the electronic device 100 is normally connected. can be prevented.

FIG. 6 is a diagram for explaining the configuration of an electronic device and a wireless modem device according to an embodiment. Depending on the embodiments, at least one of the components described below may be omitted, modified, or combined with other components.

Referring to FIG. 6, the wireless modem device 110 (e.g., MBB device) includes a modem 622, a subscriber identification module (SIM) card 624, an MBIM interface 626, an RS/RA module 628, Alternatively, it may include at least one interface driver 630.

The modem 622 may be configured to encode and modulate a transmitted signal and demodulate and decode a received signal according to a wireless communication method (eg, 3G, 4G, or 5G communication method). In one embodiment, the modem 622 may be implemented as a software module included in the CP within the processor 304.

SIM card 624 may be implemented as an embedded or external card containing subscriber information, network configuration information, and authentication information.

The MBIM interface 626 can perform communication with the electronic device 100 according to the MBIM protocol. In one embodiment, the MBIM interface 626 may be implemented as a software module included in the CP within the processor 304. The wireless modem device 110 may transmit network status information to the electronic device 100 through the MBIM interface 626 and receive network-related requests, such as a connection request, from the electronic device 100 through the MBIM interface 626. It can be processed. The electronic device 100 may include additional information in the MBIM message using the MBIM extension protocol.

The interface driver 630 may manage a wired link (eg, interface 308) for a physical connection between the electronic device 100 and the wireless modem device 110. In one embodiment, the interface driver 630 may support at least one of a USB interface or a PCI Express interface.

The RS/RA module 628 may be implemented as a software module included in the CP within the processor 304. In one embodiment, the RS/RA module 628 may generate an RS message in response to a request (eg, IP reconfiguration request) from the electronic device 100. The RS message may be transmitted to a router (eg, router 125) by the modem 622. The RS/RA module 628 may receive an RA message (eg, a request-type RA message) transmitted from the router 125 in response to the RS message through the modem 622. The RA message may be transmitted to the electronic device 100 through the MBIM interface 626 and the interface driver 630.

The electronic device 100 includes a connection manager 602, a wireless wide area network (WWAN) service module 604, a user application (APP) 606, a network monitor 608, and TCP/IP ( It may include at least one of a transport control protocol / internet protocol) module 610, a network driver 612, or an interface driver 614. At least one of the above-described components may be implemented as a software module included in the processor 204.

The WWAN service module 604 may be, for example, a software module included in the operating system, manages network status information received from the wireless modem device 110, and sends network-related requests, such as connection requests, to the wireless modem device 110. ) can be transmitted.

The TCP/IP module 610 may be, for example, a software module included in an operating system and may perform at least one of IP address allocation, gateway allocation, or packet flow control for a cellular network connection.

The network driver 612 may include a software module that operates as a network adapter based on the network driver interface specification (NDIS), and performs MBIM interface communication, packet transmission, or modem communication with the wireless modem device 110. At least one of the controls can be performed.

The interface driver 614 may manage a wired link (e.g., interface 208) for a physical connection between the wireless modem device 110 and the electronic device 100. In one embodiment, the interface driver 614 It may support at least one of a USB interface or a PCI Express interface.

The network monitor 608 may be a software module in the form of a user-mode driver framework. In one embodiment, network monitor 608 supports mobile broadband classes supported by an application programming interface (API) (e.g., mobile broadband account management supported by the operating system). command) to monitor network information (e.g., connection status, effective lifetime, and/or router lifetime) in real time, and based on the monitoring, problem situations (e.g., non-receipt of RA messages or life-time delay) are monitored in real time. expiration) can be detected.

The network monitor 608 may start operating when the electronic device 100 is driven (eg, booted) or when data communication through the wireless modem device 110 begins. The network monitor 608 receives network information, network status information (e.g., connection status and/or packet transmission status), and the effective life of the IP address from the WWAN service module 04 using the Windows Runtime (WinRT) API. At least one of time or router lifetime can be obtained in real time.

The network monitor 608 may use a timer to determine when the first lifetime (eg, either the valid lifetime of the IP address or the router lifetime) expires. The timer may be set to a time shorter than the first lifetime by a specified value, and may end (for example, expire) just before the first lifetime expires. The timer may be restarted whenever an RA message containing a new value of the first lifetime is received. When the timer expires, the network monitor 608 can check the first lifetime again. If the first light pipe is not updated because the RA message (for example, an unsolicited RA message) is not received, the network monitor 608 may determine that a problem situation has occurred.

The network monitor 608 notifies the wireless modem device 110 of the occurrence of the problem situation using an MBIM message (e.g., an MBIM extension message) (e.g., an IP reconfiguration request), thereby causing the wireless modem device 110 to RS It can induce a message to be generated.

FIG. 7 is a flowchart illustrating the operation of an electronic device that requests IP reconfiguration before expiration of the lifetime, according to an embodiment. According to embodiments, at least one of the operations described below may be omitted, modified, or changed in order. In one embodiment, at least one of the operations described below may be executed by the processor 204 of the electronic device 100.

Referring to FIG. 7, in operation 705, the electronic device 100 (e.g., processor 204) connects to the data network 120 (e.g., MBB device) through a connection with the wireless modem device 100 (e.g., MBB device). A data session for communication with the router 125 can be connected. In operation 710, the electronic device 100 (eg, processor 204) may receive a first RA message (eg, an unsolicited RA message or a requested RA message) through the data session. In operation 715, the electronic device 100 (eg, processor 204) may obtain network connection information (eg, valid lifetime of IP address and/or router lifetime) from the first RA message.

In operation 720, the electronic device 100 (e.g., the processor 204) may determine a designated point in time prior to expiration of the first lifetime (e.g., either the valid lifetime of the IP address or the router lifetime). . In one embodiment, the electronic device 100 (for example, the processor 204) starts from the point in time when the first lifetime is obtained through the first RA message, and starts from the time specified by the first lifetime. A timer that is set as short as the value (for example, either a first timer based on the valid lifetime of the IP address or a second timer based on the router lifetime) may be activated. In operation 725, the electronic device 100 (eg, processor 204) may wait until the timer expires (eg, expires). When the timer expires (if 'Yes' in operation 725), the electronic device 100 (e.g., processor 204) updates the first lifetime until the specified time point before expiration of the first lifetime. It is determined that this has not been done and the process can proceed to operation 730.

In operation 730, after receiving the first RA message of operation 710 related to driving the timer, the electronic device 100 (e.g., processor 204) sends a new RA message (e.g., a non-requested RA message or a request It can be determined whether an RA message) has been received. If a new RA message has been received (yes in operation 730), the electronic device 100 (e.g., processor 204) may proceed to operation 745. On the other hand, if a new RA message is not received (in case of 'No' in operation 730), the electronic device 100 (eg, processor 204) may proceed to operation 735.

In operation 735, the electronic device 100 (eg, processor 204) may transmit a signal requesting IP reconfiguration to the wireless modem device 110 (eg, MBB device). In one embodiment, the signal may be transmitted to the wireless modem device 110 through an MBIM message or an MBIM extended message. Although not shown, the wireless modem device 110 may perform IP reconfiguration in response to the IP reconfiguration request signal, and the IP reconfiguration may be performed when the wireless modem device 110 connects to the data network 120 (e.g., a router). It may include the operation of transmitting an RS message to (125)). The wireless modem device 110 may receive a second RA message (eg, a request-type RA message) in response to the RS message and transmit the second RA message to the electronic device 100.

In operation 740, the electronic device 100 may receive the second RA message from the wireless modem device 110. In operation 745, the electronic device 100 may obtain a new value of the first lifetime (for example, one of the valid lifetime of the IP address or the router lifetime) from the second RA message, and the obtained value The first lifetime can be updated based on . The electronic device 100 may perform normal packet exchange (for example, at least one of packet transmission or packet reception) based on the updated first lifetime.

FIG. 8 is a signal flow diagram illustrating a procedure for detecting imminent expiration of a lifetime according to an embodiment. According to embodiments, at least one of the operations described below may be omitted, modified, or changed in order.

8, in operation 802, the electronic device 100 (e.g., WWAN service module 604) connects to the data network 120 (e.g., MBB device) via a wireless modem device 110 (e.g., MBB device). A data session can be connected to the router (125). In one embodiment, wireless modem device 110 may connect the data session via a cellular network (not shown).

In operation 804, the electronic device 100 (eg, TCP/IP module 610) may transmit an RS message to the router 125 through the wireless modem device 110. The RS message may be transmitted using the ICMPv6 protocol through the connected data session. In operation 806, the electronic device 100 (e.g., TCP/IP module 610) may receive an RA message (e.g., a requested RA message) from the router 125 through the wireless modem device 110. . In one embodiment, the RA message may include a valid lifetime and/or router lifetime for an IP address. In operation 808, the electronic device 100 (e.g., TCP/IP module 610) performs packet transmission normally through a data session based on the effective IP address and/or router lifetime obtained through the RA message. You can. In one embodiment, the electronic device 100 (e.g., TCP/IP module 610) transmits network connection information (e.g., effective lifetime and/or router lifetime) obtained through the RA message to the WWAN service module. You can share it with (604).

In operation 810, the electronic device 100 (e.g., the WWAN service module 604) reports network information (e.g., connection status, effective lifetime, or router lifetime) related to the data session to the network monitor 608. one) can be delivered. In operation 812, the electronic device 100 (eg, network monitor 608) may check the connection status and at least one lifetime of the data session based on the received network information. In one embodiment, the electronic device 100 (eg, network monitor 608) may drive at least one timer corresponding to the valid lifetime and/or router lifetime. In one embodiment, the at least one timer may include a first timer and/or a second timer. The first timer may be set to be shorter than the effective lifetime by a specified value. The second timer may be set to be shorter than the router lifetime by a specified value. Although not shown, electronic device 100 (e.g., network monitor 608) starts a first timer or a second timer whenever a new RA message (e.g., a requested RA message or an unsolicited RA message) is received. You can reset or restart at least one of the timers.

In operation 814, an RA message (e.g., a non-requested RA message) transmitted from the data network 120 (e.g., router 125) is received for some reason (e.g., packet traffic overload, or error in the data flow). Due to this, it may not be able to reach the electronic device 100. In one embodiment, the router 125 may not transmit the RA message due to malfunction.

In operation 816, the electronic device 100 (e.g., network monitor 608) sends an RA message (e.g., a requested RA message or a non-requested RA message) until at least one of the first timer or the second timer expires. ) can be detected that is not being received. In one embodiment, the electronic device 100 (eg, the network monitor 608) may determine that the RA message has not been received based on the expiration of at least one of the first timer or the second timer.

In operation 818, the electronic device 100 (e.g., network monitor 608) may transmit an IP/gateway information request signal (e.g., API command) to TCP/IP module 610 to request a new lifetime. there is. In operation 820, the electronic device 100 (e.g., TCP/IP module 610) sends an IP/gateway information response signal (e.g., IP/gateway information response signal including the lifetime stored in TCP/IP module 610) to the network monitor 608. For example, API commands) can be transmitted. In operation 822, the electronic device 100 (eg, network monitor 608) may determine that the lifetime has already expired and determine that packet transmission is impossible.

FIG. 9 is a signal flow diagram illustrating a procedure for requesting IP reconfiguration before expiration of lifetime, according to an embodiment. According to embodiments, at least one of the operations described below may be omitted, modified, or changed in order.

9, in operation 902, the electronic device 100 (e.g., network monitor 608) determines at least one lifetime associated with a data session (e.g., the effective lifetime of an IP address and/or the router lifetime). ) can be detected that expiration is imminent. In one embodiment, the electronic device 100 (e.g., network monitor 608) is configured to It can be detected that the lifetime is not updated. In one embodiment, the electronic device 100 (eg, the network monitor 608) may confirm that the connection state of the data session is normal at the specified time before expiration of the first lifetime.

In one embodiment, the electronic device 100 (e.g., network monitor 608) may detect that at least one timer based on at least one lifetime expires. In one embodiment, electronic device 100 (e.g., network monitor 608) may detect that a first timer based on a valid lifetime obtained from an RA message (e.g., the RA message of operation 806) has expired. there is. The first timer may expire by a specified value before the expiration of the effective lifetime. In one embodiment, the electronic device 100 (e.g., network monitor 608) may detect that a second timer based on the router lifetime obtained from the RA message (e.g., the RA message in operation 806) has expired. there is. The second timer may expire by a specified value before the expiration of the router lifetime.

In operation 904, the electronic device 100 (eg, network monitor 608) may transmit a signal requesting IP reconfiguration to the wireless modem device 110 (eg, MBB device). In one embodiment, the signal may be delivered to the wireless modem device 110 (e.g., RS/RA module 628) via an MBIM message and an MBIM extension message.

In operation 906, the wireless modem device 110 (e.g., RS/RA module 628) may transmit an RS message to the data network 120 (e.g., router 125) for the IP reconfiguration. In operation 908, the wireless modem device 110 (eg, RS/RA module 628) may receive an RA message (eg, requested RA message) in response to the RS message from the router 125.

In operation 910, the wireless modem device 110 (eg, RS/RA module 628) may transmit the RA message to the electronic device 100 (eg, TCP/IP module 610). In one embodiment, the wireless modem device 110 (e.g., RS/RA module 628) converts the requested RA message received from the router 125 into an unsolicited RA message, and can be transmitted to the electronic device 100. In operation 912, the wireless modem device 110 (e.g., RS/RA module 628) may transmit a signal indicating that IP reconfiguration is complete to the electronic device 100 (e.g., network monitor 608).

In operation 914, the electronic device 100 (e.g., TCP/IP module 610) based on the effective IP address and/or router lifetime obtained through the RA message (e.g., non-requested RA message). Packet transmission can be performed normally through the data session. In one embodiment, the electronic device 100 (e.g., TCP/IP module 610) transmits network connection information (e.g., effective lifetime and/or router lifetime) obtained through the RA message to the WWAN service module. You can share it with (604). In one embodiment, the electronic device 100 (e.g., WWAN module 604) displays network connection information (e.g., effective lifetime and/or router lifetime) obtained through the RA message through the network monitor 608. You can share it with.

FIG. 10 is a flowchart illustrating the operation of an electronic device that requests network connection information before expiration of the lifetime, according to an embodiment. According to embodiments, at least one of the operations described below may be omitted, modified, or changed in order. In one embodiment, at least one of the operations described below may be executed by the processor 204 of the electronic device 100.

Referring to FIG. 10, in operation 1005, the electronic device 100 (e.g., processor 204) communicates with the data network 120 (e.g., router 125) through a connection with the wireless modem device 100. You can connect a data session for . In operation 1010, the electronic device 100 (eg, processor 204) may receive a first RA message (eg, an unsolicited RA message or a requested RA message) through the data session. In operation 1015, the electronic device 100 (eg, processor 204) may obtain network connection information (eg, valid lifetime of IP address and/or router lifetime) from the first RA message.

In operation 1020, the electronic device 100 (e.g., the processor 204) may check a designated point in time prior to expiration of the first lifetime (e.g., either the valid lifetime of the IP address or the router lifetime). . In one embodiment, the electronic device 100 (for example, the processor 204) starts from the point in time when the first lifetime is obtained through the first RA message, and starts from the time specified by the first lifetime. A timer that is set as short as the value (for example, either a first timer based on the valid lifetime of the IP address or a second timer based on the router lifetime) may be activated. In operation 1025, the electronic device 100 (eg, processor 204) may wait until the timer expires (eg, expires). When the timer expires (if 'Yes' in operation 1025), the electronic device 100 (e.g., processor 204) updates the first lifetime until the specified time point before expiration of the first lifetime. It is determined that this has not been done and the process can proceed to operation 1030.

In operation 1030, after receiving the first RA message of operation 1010 related to driving the timer, the electronic device 100 (e.g., processor 204) sends a new RA message (e.g., a non-requested RA message or request). It can be determined whether an RA message) has been received. If a new RA message has been received (yes in operation 1030), the electronic device 100 (e.g., processor 204) may proceed to operation 1045. On the other hand, if a new RA message is not received (in case of 'No' in operation 1030), the electronic device 100 (eg, processor 204) may proceed to operation 1035.

In operation 1035, electronic device 100 (e.g., processor 204) sends an RS message to data network 120 (e.g., router 125) via wireless modem device 110 (e.g., MBB device). can be transmitted. In one embodiment, the RS message may be transmitted by the TCP/IP module 610 of the electronic device 100. Although not shown, the RS message may be delivered to the router 125 via the wireless modem device 110. The router 125 may transmit a second RA message (eg, a request-type RA message) to the wireless modem device 110 in response to the RS message.

In operation 1040, the electronic device 100 may receive the second RA message from the wireless modem device 110. In operation 1045, the electronic device 100 may obtain a new value of the first lifetime (for example, one of the valid lifetime of an IP address or the router lifetime) from the second RA message, and the obtained value The first lifetime can be updated based on . The electronic device 100 may perform normal packet exchange (for example, at least one of packet transmission or packet reception) based on the updated first lifetime.

FIG. 11 is a signal flow diagram illustrating a procedure for requesting network connection information according to an embodiment. According to embodiments, at least one of the operations described below may be omitted, modified, or changed in order.

Referring to FIG. 11 , in operation 1102, the electronic device 100 (e.g., network monitor 608) determines at least one lifetime associated with a data session (e.g., the effective lifetime of an IP address and/or the router lifetime). ) can be detected that expiration is imminent. In one embodiment, the electronic device 100 (e.g., network monitor 608) is configured to It can be detected that the lifetime is not updated. In one embodiment, the electronic device 100 (eg, the network monitor 608) may confirm that the connection state of the data session is normal at the specified time before expiration of the first lifetime.

In one embodiment, the electronic device 100 (e.g., network monitor 608) may detect that at least one timer based on at least one lifetime expires. In one embodiment, electronic device 100 (e.g., network monitor 608) may detect that a first timer based on a valid lifetime obtained from an RA message (e.g., the RA message of operation 806) has expired. there is. The first timer may expire by a specified value before the expiration of the effective lifetime. In one embodiment, the electronic device 100 (e.g., network monitor 608) may detect that a second timer based on the router lifetime obtained from the RA message (e.g., the RA message in operation 806) has expired. there is. The second timer may expire by a specified value before the expiration of the router lifetime.

In operation 1104, the electronic device 100 (e.g., network monitor 608) may transmit a signal (e.g., WinRT API command) notifying the WWAN service module 604 that IP reconfiguration is necessary. In one embodiment, the signal may include an MBIM message (eg, MBIM_CID_IP_CONFIGURATION) containing information about the connection state. In operation 1106, the electronic device 100 (eg, the WWAN service module 604) may transmit a signal for triggering an RS message to the TCP/IP module 610.

In operation 1108, the electronic device 100 (e.g., TCP/IP module 610) sends an RS message to the data network 120 (e.g., a router) through the wireless modem device 110 in response to the RS message trigger. It can be sent to 125)). In operation 1110, the electronic device 100 (eg, TCP/IP module 610) may receive an RA message (eg, requested RA message) in response to the RS message from the router 125.

In operation 1112, the electronic device 100 (e.g., TCP/IP module 610) determines the IP address and/or router lifetime obtained through the RA message (e.g., request-type RA message). Packet transmission can be performed normally through a data session. In one embodiment, the electronic device 100 (e.g., TCP/IP module 610) transmits network connection information (e.g., effective lifetime and/or router lifetime) obtained through the RA message to the WWAN service module. You can share it with (604). In one embodiment, the electronic device 100 (e.g., WWAN module 604) displays network connection information (e.g., effective lifetime and/or router lifetime) obtained through the RA message through the network monitor 608. You can share it with.

In one embodiment, the electronic device 100 according to embodiments of the present disclosure may include at least one of the components of the electronic device 1201 shown in FIG. 12 .

FIG. 12 is a block diagram of an electronic device 1201 in a network environment 1200 according to various embodiments.

Referring to FIG. 12, in the network environment 1200, the electronic device 1201 communicates with the electronic device 1202 through a first network 1298 (e.g., a short-range wireless communication network) or a second network 1299. It is possible to communicate with at least one of the electronic device 1204 or the server 1208 through (e.g., a long-distance wireless communication network). According to one embodiment, the electronic device 1201 may communicate with the electronic device 1204 through the server 1208. According to one embodiment, the electronic device 1201 includes a processor 1220, a memory 1230, an input module 1250, an audio output module 1255, a display module 1260, an audio module 1270, and a sensor module ( 1276), interface (1277), connection terminal (1278), haptic module (1279), camera module (1280), power management module (1288), battery (1289), communication module (1290), subscriber identification module (1296) , or may include an antenna module 1297. In some embodiments, at least one of these components (eg, the connection terminal 1278) may be omitted, or one or more other components may be added to the electronic device 1201. In some embodiments, some of these components (e.g., sensor module 1276, camera module 1280, or antenna module 1297) are integrated into one component (e.g., display module 1260). It can be.

The processor 1220, for example, executes software (e.g., program 1240) to operate at least one other component (e.g., hardware or software component) of the electronic device 1201 connected to the processor 1220. It can be controlled and various data processing or operations can be performed. According to one embodiment, as at least part of the data processing or computation, the processor 1220 stores instructions or data received from another component (e.g., the sensor module 1276 or the communication module 1290) in the volatile memory 1232. The commands or data stored in the volatile memory 1232 can be processed, and the resulting data can be stored in the non-volatile memory 1234. According to one embodiment, the processor 1220 is a main processor 1221 (e.g., a central processing unit or an application processor) or an auxiliary processor 1223 that can operate independently or together (e.g., a graphics processing unit, a neural network processing unit ( It may include a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor). For example, if the electronic device 1201 includes a main processor 1221 and a auxiliary processor 1223, the auxiliary processor 1223 may be set to use lower power than the main processor 1221 or be specialized for a designated function. You can. The auxiliary processor 1223 may be implemented separately from the main processor 1221 or as part of it.

The auxiliary processor 1223 may, for example, act on behalf of the main processor 1221 while the main processor 1221 is in an inactive (e.g., sleep) state, or while the main processor 1221 is in an active (e.g., application execution) state. ), together with the main processor 1221, at least one of the components of the electronic device 1201 (e.g., the display module 1260, the sensor module 1276, or the communication module 1290) At least some of the functions or states related to can be controlled. According to one embodiment, coprocessor 1223 (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module 1280 or communication module 1290). there is. According to one embodiment, the auxiliary processor 1223 (eg, neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. Artificial intelligence models can be created through machine learning. This learning may be performed, for example, in the electronic device 1201 itself on which the artificial intelligence model is performed, or may be performed through a separate server (e.g., server 1208). Learning algorithms may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but It is not limited. An artificial intelligence model may include multiple artificial neural network layers. Artificial neural networks include deep neural network (DNN), convolutional neural network (CNN), recurrent neural network (RNN), restricted boltzmann machine (RBM), belief deep network (DBN), bidirectional recurrent deep neural network (BRDNN), It may be one of deep Q-networks or a combination of two or more of the above, but is not limited to the examples described above. In addition to hardware structures, artificial intelligence models may additionally or alternatively include software structures.

The memory 1230 may store various data used by at least one component (eg, the processor 1220 or the sensor module 1276) of the electronic device 1201. Data may include, for example, input data or output data for software (e.g., program 1240) and instructions related thereto. Memory 1230 may include volatile memory 1232 or non-volatile memory 1234.

The program 1240 may be stored as software in the memory 1230 and may include, for example, an operating system 1242, middleware 1244, or application 1246.

The input module 1250 may receive commands or data to be used in a component of the electronic device 1201 (e.g., the processor 1220) from outside the electronic device 1201 (e.g., a user). The input module 1250 may include, for example, a microphone, mouse, keyboard, keys (eg, buttons), or digital pen (eg, stylus pen).

The sound output module 1255 may output sound signals to the outside of the electronic device 1201. The sound output module 1255 may include, for example, a speaker or receiver. Speakers can be used for general purposes such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part of it.

The display module 1260 can visually provide information to the outside of the electronic device 1201 (eg, a user). The display module 1260 may include, for example, a display, a hologram device, or a projector, and a control circuit for controlling the device. According to one embodiment, the display module 1260 may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of force generated by the touch.

The audio module 1270 can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module 1270 acquires sound through the input module 1250, the sound output module 1255, or an external electronic device (e.g., directly or wirelessly connected to the electronic device 1201). Sound may be output through an electronic device 1202 (e.g., speaker or headphone).

The sensor module 1276 detects the operating state (e.g., power or temperature) of the electronic device 1201 or the external environmental state (e.g., user state) and generates an electrical signal or data value corresponding to the detected state. can do. According to one embodiment, the sensor module 1276 includes, for example, a gesture sensor, a gyro sensor, an air pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, It may include a temperature sensor, humidity sensor, or light sensor.

The interface 1277 may support one or more designated protocols that can be used to connect the electronic device 1201 directly or wirelessly with an external electronic device (eg, the electronic device 1202). According to one embodiment, the interface 1277 may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

The connection terminal 1278 may include a connector through which the electronic device 1201 can be physically connected to an external electronic device (eg, the electronic device 1202). According to one embodiment, the connection terminal 1278 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (eg, a headphone connector).

The haptic module 1279 can convert electrical signals into mechanical stimulation (e.g., vibration or movement) or electrical stimulation that the user can perceive through tactile or kinesthetic senses. According to one embodiment, the haptic module 1279 may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

The camera module 1280 can capture still images and videos. According to one embodiment, the camera module 1280 may include one or more lenses, image sensors, image signal processors, or flashes.

The power management module 1288 can manage power supplied to the electronic device 1201. According to one embodiment, the power management module 1288 may be implemented as at least a part of, for example, a power management integrated circuit (PMIC).

The battery 1289 may supply power to at least one component of the electronic device 1201. According to one embodiment, the battery 1289 may include, for example, a non-rechargeable primary cell, a rechargeable secondary cell, or a fuel cell.

The communication module 1290 provides a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 1201 and an external electronic device (e.g., the electronic device 1202, the electronic device 1204, or the server 1208). It can support establishment and communication through established communication channels. Communication module 1290 operates independently of processor 1220 (e.g., an application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module 1290 may be a wireless communication module 1292 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 1294 (e.g., : LAN (local area network) communication module, or power line communication module) may be included. Among these communication modules, the corresponding communication module is a first network 1298 (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network 1299 (e.g., legacy It may communicate with an external electronic device 1204 through a telecommunication network such as a cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or WAN). These various types of communication modules may be integrated into one component (e.g., a single chip) or may be implemented as a plurality of separate components (e.g., multiple chips). The wireless communication module 1292 uses subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module 1296 to communicate within a communication network such as the first network 1298 or the second network 1299. The electronic device 1201 can be confirmed or authenticated.

The wireless communication module 1292 may support 5G networks and next-generation communication technologies after 4G networks, for example, new radio access technology (NR access technology). NR access technology provides high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimization of terminal power and access to multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low latency). -latency communications)) can be supported. The wireless communication module 1292 may support high frequency bands (e.g., mmWave bands), for example, to achieve high data rates. The wireless communication module 1292 uses various technologies to secure performance in high frequency bands, for example, beamforming, massive MIMO (multiple-input and multiple-output), and full-dimensional multiplexing. It can support technologies such as input/output (FD-MIMO: full dimensional MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module 1292 may support various requirements specified in the electronic device 1201, an external electronic device (e.g., electronic device 1204), or a network system (e.g., second network 1299). According to one embodiment, the wireless communication module 1292 supports peak data rate (e.g., 20 Gbps or more) for realizing eMBB, loss coverage (e.g., 164 dB or less) for realizing mmTC, or U-plane latency (e.g., 164 dB or less) for realizing URLLC. Example: Downlink (DL) and uplink (UL) each of 0.5 ms or less, or round trip 1 ms or less) can be supported.

The antenna module 1297 may transmit or receive signals or power to or from the outside (e.g., an external electronic device). According to one embodiment, the antenna module 1297 may include an antenna including a radiator made of a conductor or a conductive pattern formed on a substrate (eg, PCB). According to one embodiment, the antenna module 1297 may include a plurality of antennas (eg, an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network such as the first network 1298 or the second network 1299 is connected to the plurality of antennas by, for example, the communication module 1290. can be selected. Signals or power may be transmitted or received between the communication module 1290 and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (eg, radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module 1297.

According to various embodiments, antenna module 1297 may form a mmWave antenna module. According to one embodiment, a mmWave antenna module includes a printed circuit board, an RFIC disposed on or adjacent to a first side (e.g., bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., mmWave band), And a plurality of antennas (e.g., array antennas) disposed on or adjacent to the second side (e.g., top or side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band. can do.

At least some of the components are connected to each other through a communication method between peripheral devices (e.g., bus, general purpose input and output (GPIO), serial peripheral interface (SPI), or mobile industry processor interface (MIPI)) and signal ( (e.g. commands or data) can be exchanged with each other.

According to one embodiment, commands or data may be transmitted or received between the electronic device 1201 and the external electronic device 1204 through the server 1208 connected to the second network 1299. Each of the external electronic devices 1202 or 1204 may be of the same or different type as the electronic device 1201. According to one embodiment, all or part of the operations performed in the electronic device 1201 may be executed in one or more of the external electronic devices 1202, 1204, or 1208. For example, when the electronic device 1201 needs to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device 1201 may perform the function or service instead of executing the function or service on its own. Alternatively, or additionally, one or more external electronic devices may be requested to perform at least part of the function or service. One or more external electronic devices that have received the request may execute at least part of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device 1201. The electronic device 1201 may process the result as is or additionally and provide it as at least part of a response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology can be used. The electronic device 1201 may provide an ultra-low latency service using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device 1204 may include an Internet of Things (IoT) device. Server 1208 may be an intelligent server using machine learning and/or neural networks. According to one embodiment, an external electronic device 1204 or a server 1208 may be included in the second network 1299. The electronic device 1201 may be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

Embodiments of the present disclosure are in a state in which the electronic device 100 using the wireless modem device 110 (e.g., MBB device) is unable to perform cellular data communication due to expiration of the valid lifetime of the IP address or the router lifetime. can be prevented.

According to embodiments of the present disclosure, the electronic device 100 detects the imminent expiration of the lifetime without the user directly rebooting the electronic device 100 or performing an operation of deactivating and then reactivating cellular communication. IP reconfiguration can be performed.

According to embodiments of the present disclosure, the electronic device 100 can actively recover a problem situation by monitoring and detecting the imminent expiration of the lifetime, and can normally maintain a seamless cellular network connection without user action. , inconvenience caused by error recovery in cellular data communication can be prevented.

The effects that can be obtained from this document are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of this document. There will be.

The electronic device 100 according to one embodiment may include an interface 208 and at least one processor 204 functionally connected to the interface. The at least one processor may be configured to connect a data session for cellular data communication using the wireless modem device 110 connected through the interface. The at least one processor may be configured to receive a first router advertisement (RA) message through the data session. The at least one processor may be configured to obtain at least one lifetime for the data session from the first RA message. The at least one processor may be configured to determine whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The at least one processor may be configured to transmit a signal requesting IP reconfiguration to the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. . The at least one processor may be configured to receive a second RA message from the wireless modem device after transmitting the signal requesting IP reconfiguration. The at least one processor may be configured to update the at least one lifetime based on the second RA message.

In one embodiment, the at least one lifetime may include at least one of the valid lifetime of an IP address or the router lifetime.

In one embodiment, the second RA message may include a non-requested RA message.

In one embodiment, the at least one processor drives at least one timer set to a time shorter than the at least one lifetime by a specified value, and sends a third RA message including a new value of the at least one lifetime. When received, the at least one timer may be restarted, and when the at least one timer expires, a signal requesting IP reconfiguration may be transmitted.

In one embodiment, the at least one processor may be configured to transmit a signal requesting IP reconfiguration if the connection state of the data session is normal at a designated point in time before expiration of the at least one lifetime.

The electronic device 100 according to one embodiment may include an interface 208 and at least one processor 204 functionally connected to the interface. The at least one processor may be configured to connect a data session for cellular data communication using the wireless modem device 110 connected through the interface. The at least one processor may be configured to receive a first router advertisement (RA) message through the data session. The at least one processor may be configured to obtain at least one lifetime for the data session from the first RA message. The at least one processor may be configured to determine whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The at least one processor is configured to transmit a router request (RS) message to the router through the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. It can be. The at least one processor may be configured to receive a second RA message from the router through the wireless modem device after transmitting the RS message. The at least one processor may be configured to update the at least one lifetime based on the second RA message.

In one embodiment, the at least one lifetime may include at least one of the valid lifetime of an IP address or the router lifetime.

In one embodiment, the second RA message may include a request-type RA message.

In one embodiment, the at least one processor drives at least one timer set to a time shorter than the at least one lifetime by a specified value, and sends a third RA message including a new value of the at least one lifetime. When received, the at least one timer may be restarted, and when the at least one timer expires, the RS message may be transmitted.

In one embodiment, the at least one processor may be configured to transmit the RS message if the connection state of the data session is normal at the specified time before expiration of the at least one lifetime.

According to one embodiment, a method of operating the electronic device 100 connected to the wireless modem device 110 may include an operation 705 of connecting a data session for cellular data communication using the wireless modem device. . The method may include an operation 710 of receiving a first router advertisement (RA) message through the data session. The method may include an operation 715 of obtaining at least one lifetime for the data session from the first RA message. The method may include operations 720, 725, and 730 of determining whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The method may include an operation 735 of transmitting a signal requesting IP reconfiguration to the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. there is. The method may include an operation 740 of receiving a second RA message from the wireless modem device after transmitting the signal requesting IP reconfiguration. The method may include an operation 745 of updating the at least one lifetime based on the second RA message.

In one embodiment, the at least one lifetime may include at least one of the valid lifetime of an IP address or the router lifetime.

In one embodiment, the second RA message may include a non-requested RA message.

In one embodiment, the operation of transmitting the signal requesting IP reconfiguration includes driving at least one timer set to a time shorter than the at least one lifetime by a specified value, and setting a new timer of the at least one lifetime. The method may include restarting the at least one timer when a third RA message including the value is received, and determining to transmit a signal requesting IP reconfiguration when the at least one timer expires.

In one embodiment, the operation of transmitting a signal requesting IP reconfiguration includes transmitting a signal requesting IP reconfiguration if the connection state of the data session is normal at the specified point in time before expiration of the at least one lifetime. It may include actions to decide to do.

According to one embodiment, a method of operating the electronic device 100 connected to the wireless modem device 110 may include an operation 1005 of connecting a data session for cellular data communication using the wireless modem device. . The method may include an operation 1010 of receiving a first router advertisement (RA) message through the data session. The method may include an operation 1015 of obtaining at least one lifetime for the data session from the first RA message. The method may include operations 1020, 1025, and 1030 of determining whether the at least one lifetime is updated by a specified point in time before expiration of the at least one lifetime. The method includes an operation (1035) of transmitting a router request (RS) message to a router through the wireless modem device if the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime. It can be included. The method may include an operation 1040 of receiving a second RA message from the router through the wireless modem device after transmitting the RS message. The method may include an operation 1045 of updating the at least one lifetime based on the second RA message.

In one embodiment, the at least one lifetime may include at least one of the valid lifetime of an IP address or the router lifetime.

In one embodiment, the second RA message may include a request-type RA message.

In one embodiment, the operation of transmitting the RS message includes driving at least one timer set to a time shorter than the at least one lifetime by a specified value, and setting a new value of the at least one lifetime. It may include restarting the at least one timer when a third RA message is received, and determining to transmit the RS message when the at least one timer expires.

In one embodiment, the operation of transmitting the RS message may include determining to transmit the RS message if the connection state of the data session is normal at the specified time before expiration of the at least one lifetime. there is.

Electronic devices according to various embodiments disclosed in this document may be of various types. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to embodiments of this document are not limited to the above-described devices.

The various embodiments of this document and the terms used herein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various changes, equivalents, or replacements of the embodiments. In connection with the description of the drawings, similar reference numbers may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the relevant context clearly indicates otherwise. As used herein, “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “A Each of phrases such as “at least one of , B, or C” may include any one of the items listed together in the corresponding phrase, or any possible combination thereof. Terms such as "first", "second", or "first" or "second" may be used simply to distinguish one component from another, and to refer to those components in other respects (e.g., importance or order) is not limited. One (e.g., first) component is said to be “coupled” or “connected” to another (e.g., second) component, with or without the terms “functionally” or “communicatively.” Where mentioned, it means that any of the components can be connected to the other components directly (e.g. wired), wirelessly, or through a third component.

The term “module” used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and is interchangeable with terms such as logic, logic block, component, or circuit, for example. It can be used as A module may be an integrated part or a minimum unit of the parts or a part thereof that performs one or more functions. For example, according to one embodiment, the module may be implemented in the form of an application-specific integrated circuit (ASIC).

Various embodiments of the present document are one or more instructions stored in a storage medium (e.g., built-in memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). It may be implemented as software (e.g., program 140) including these. For example, a processor (e.g., processor 120) of a device (e.g., electronic device 101) may call at least one command among one or more commands stored from a storage medium and execute it. This allows the device to be operated to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be executed by an interpreter. A storage medium that can be read by a device may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' only means that the storage medium is a tangible device and does not contain signals (e.g. electromagnetic waves). This term refers to cases where data is stored semi-permanently in the storage medium. There is no distinction between temporary storage cases.

According to one embodiment, methods according to various embodiments disclosed in this document may be provided and included in a computer program product. Computer program products are commodities and can be traded between sellers and buyers. The computer program product may be distributed in the form of a machine-readable storage medium (e.g. compact disc read only memory (CD-ROM)) or through an application store (e.g. Play StoreTM) or on two user devices (e.g. It can be distributed (e.g. downloaded or uploaded) directly between smart phones) or online. In the case of online distribution, at least a portion of the computer program product may be at least temporarily stored or temporarily created in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or a relay server.

According to various embodiments, each component (e.g., module or program) of the above-described components may include a single or plural entity, and some of the plurality of entities may be separately placed in other components. there is. According to various embodiments, one or more of the components or operations described above may be omitted, or one or more other components or operations may be added. Alternatively or additionally, multiple components (eg, modules or programs) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component of the plurality of components prior to the integration. . According to various embodiments, operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, or omitted. Alternatively, one or more other operations may be added.

Claims (20)

In the electronic device 100,
interface(208); and
At least one processor 204 functionally connected to the interface, wherein the at least one processor includes:
Connecting a data session for cellular data communication using a wireless modem device 110 connected through the interface,
Receive a first router advertisement (RA) message through the data session,
Obtain at least one lifetime for the data session from the first RA message,
Determine whether the at least one lifetime is updated by a specified point before expiration of the at least one lifetime,
If the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, transmitting a signal requesting IP (internet protocol) reconfiguration to the wireless modem device,
After transmitting the signal requesting IP reconfiguration, receive a second RA message from the wireless modem device,
An electronic device configured to update the at least one lifetime based on the second RA message. The method of claim 1, wherein the at least one lifetime is:
An electronic device comprising at least one of the valid lifetime of an IP address or the router lifetime. The method of claim 1 or 2, wherein the second RA message is:
An electronic device comprising an unsolicited RA message. The method of any one of claims 1 to 3, wherein the at least one processor:
Driving at least one timer set to a time shorter than the at least one lifetime by a specified value,
Restart the at least one timer when a third RA message containing a new value of the at least one lifetime is received,
An electronic device configured to transmit a signal requesting IP reconfiguration when the at least one timer expires. The method of any one of claims 1 to 4, wherein the at least one processor:
If the connection state of the data session is normal at the specified time before expiration of the at least one lifetime, the electronic device is configured to transmit a signal requesting IP reconfiguration. In the electronic device 100,
interface(208); and
At least one processor 204 functionally connected to the interface, wherein the at least one processor includes:
Connecting a data session for cellular data communication using a wireless modem device 110 connected through the interface,
Receive a first router advertisement (RA) message through the data session,
Obtain at least one lifetime for the data session from the first RA message,
Determine whether the at least one lifetime is updated by a specified point before expiration of the at least one lifetime,
If the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, transmitting a router request (RS) message to the router through the wireless modem device,
After transmitting the RS request message, receive a second RA message from the router through the wireless modem device,
An electronic device configured to update the at least one lifetime based on the second RA message. The method of claim 6, wherein the at least one lifetime is:
An electronic device comprising at least one of the valid lifetime of an IP address or the router lifetime. The method of claim 6 or 7, wherein the second RA message is:
An electronic device comprising a solicited RA message. The method of any one of claims 6 to 8, wherein the at least one processor:
Driving at least one timer set to a time shorter than the at least one lifetime by a specified value,
Restart the at least one timer when a third RA message containing a new value of the at least one lifetime is received,
An electronic device configured to transmit the RS message when the at least one timer expires. The method of any one of claims 6 to 9, wherein the at least one processor:
The electronic device is configured to transmit the RS message if the connection state of the data session is normal at the specified time before expiration of the at least one lifetime. In a method of operating an electronic device 100 connected to a wireless modem device 110,
An operation (705) of connecting a data session for cellular data communication using the wireless modem device;
An operation 710 of receiving a first router advertisement (RA) message through the data session;
An operation 715 of obtaining at least one lifetime for the data session from the first RA message;
Operations 720, 725, and 730 of determining whether the at least one lifetime is updated by a specified point before expiration of the at least one lifetime;
If the at least one lifetime is not updated by the specified time before the expiration of the at least one lifetime, an operation 735 of transmitting a signal requesting IP (internet protocol) reconfiguration to the wireless modem device;
An operation 740 of receiving a second RA message from the wireless modem device after transmitting the IP reconfiguration request signal;
A method comprising updating the at least one lifetime based on the second RA message (745). The method of claim 11, wherein the at least one lifetime is:
A method comprising at least one of the valid lifetime of an IP address or the router lifetime. The method of claim 11 or 12, wherein the second RA message is:
A method characterized by including an unsolicited RA message. The method of any one of claims 11 to 13, wherein the operation of transmitting a signal requesting IP reconfiguration includes:
An operation of driving at least one timer set to a time shorter than the at least one lifetime by a specified value;
restarting the at least one timer when a third RA message containing a new value of the at least one lifetime is received;
and determining to transmit a signal requesting IP reconfiguration when the at least one timer expires. The method of any one of claims 11 to 14, wherein the operation of transmitting a signal requesting IP reconfiguration includes:
and determining to transmit a signal requesting IP reconfiguration if the connection state of the data session is normal at the specified time before expiration of the at least one lifetime. In a method of operating an electronic device 100 connected to a wireless modem device 110,
An operation (1005) of connecting a data session for cellular data communication using the wireless modem device;
An operation (1010) of receiving a first router advertisement (RA) message through the data session;
An operation 1015 of obtaining at least one lifetime for the data session from the first RA message;
An operation (1020, 1025, 1030) of determining whether the at least one lifetime is updated by a specified point before expiration of the at least one lifetime;
If the at least one lifetime is not updated by the specified time before expiration of the at least one lifetime, transmitting a router request (RS) message to the router through the wireless modem device (1035);
An operation (1040) of receiving a second RA message from the router through the wireless modem device after transmitting the RS message;
A method comprising updating the at least one lifetime based on the second RA message (1045). 17. The method of claim 16, wherein the at least one lifetime is:
A method comprising at least one of the valid lifetime of an IP address or the router lifetime. The method of claim 16 or 17, wherein the second RA message is
A method characterized by including a solicited RA message. The method of any one of claims 16 to 18, wherein the operation of transmitting the RS message comprises:
An operation of driving at least one timer set to a time shorter than the at least one lifetime by a specified value;
restarting the at least one timer when a third RA message containing a new value of the at least one lifetime is received;
and determining to transmit the RS message when the at least one timer expires. The method of any one of claims 16 to 19, wherein the operation of transmitting the RS message comprises:
and determining to transmit the RS message if the connection state of the data session is normal at the specified time before expiration of the at least one lifetime.

Images