KR102101928B1 - Mobile terminal and mobile communication system applying power saving mode - Google Patents

Abstract

According to an embodiment of the present invention, a mobile communication terminal to which a power saving mode is applied, which is provided with a mobile communication service from a mobile communication system, includes a timer value for a power saving mode and the mobile communication service from the mobile communication system. The communication unit for receiving the setting information determined according to the type of, selected based on the setting information, the mobile communication service is provided through the communication unit using one of a plurality of mobile communication networks included in the mobile communication system, Among the plurality of mobile communication networks, a condition in which no traffic is generated between a specific mobile communication network and the terminal set as an application target of the power saving mode, and a condition for switching a power saving mode that lasts for a time corresponding to the timer value is satisfied. Control unit to determine whether the switch and the power saving mode switch When the condition is satisfied, a mode switching unit for entering the terminal into a power saving mode that blocks the wireless communication function between the specific mobile communication network and the terminal may be included.

Description

Mobile communication terminal and mobile communication system with power saving mode applied {MOBILE TERMINAL AND MOBILE COMMUNICATION SYSTEM APPLYING POWER SAVING MODE}

The present invention relates to a technology for reducing power consumption of a mobile communication terminal in a mobile communication terminal receiving a mobile communication service from a mobile communication system using two or more different types of mobile communication standards.

Thanks to the improvement of living standards and the development of information and communication technology, an absolute majority of people possess and use personal mobile communication terminals such as cell phones. In recent years, contents available through a mobile communication terminal are becoming high-capacity, and demand for low latency service is also increasing. Accordingly, a technique for providing a high-quality mobile communication service capable of transmitting large amounts of data at a faster rate has been actively researched.

In this regard, recently, a communication scheme in which two or more types of mobile communication networks (for example, LTE and 5G) to which different communication standards are applied coexist, such as dual connectivity, has emerged. In such a mobile communication environment, the terminal can simultaneously access each of a plurality of mobile communication networks to receive a mobile communication service. More specifically, in receiving various mobile communication services, a terminal may receive a mobile communication service using different mobile communication networks for each service in consideration of characteristics of the service.

The mobile communication method as described above has the advantage of being able to provide a high-quality mobile communication service to a terminal by using each heterogeneous mobile communication network according to the situation, but continues to support a plurality of mobile communication networks. It also has the disadvantage that the power consumption of the terminal may increase as it is used.

Korean Patent Publication No. 10-2015-0088746 (published on August 3, 2015)

The problem to be solved by the present invention is to solve the problem that may occur in the mobile communication method as described above, while reducing the power consumption of the terminal, the technology applied to maintain the quality of the mobile communication service that the terminal feels is applied It is to provide a mobile communication terminal and a mobile communication system.

However, the problem to be solved by the present invention is not limited to those mentioned above, and another problem not to be solved can be clearly understood by those having ordinary knowledge to which the present invention belongs from the following description. will be.

According to an embodiment of the present invention, a mobile communication terminal to which a power saving mode is applied, which is provided with a mobile communication service from a mobile communication system, includes a timer value for a power saving mode and the mobile communication service from the mobile communication system. The communication unit for receiving the setting information determined according to the type of, selected based on the setting information, the mobile communication service is provided through the communication unit using one of a plurality of mobile communication networks included in the mobile communication system, Among the plurality of mobile communication networks, a condition in which no traffic is generated between a specific mobile communication network and the terminal set as an application target of the power saving mode, and a condition for switching a power saving mode that lasts for a time corresponding to the timer value is satisfied. Control unit to determine whether the switch and the power saving mode switch When the condition is satisfied, a mode switching unit for entering the terminal into a power saving mode that blocks the wireless communication function between the specific mobile communication network and the terminal may be included.

A mobile communication system to which a power saving mode is applied, which provides a mobile communication service to a mobile communication terminal according to an embodiment of the present invention, includes a timer value for the power saving mode and a plurality of movements included in the mobile communication system In order to determine a mobile communication network to be used to provide the mobile communication service among communication networks, setting information determined according to the type of the mobile communication service is transmitted to the terminal, and the target of the power saving mode is applied to the mobile communication network. When a condition in which no traffic is generated between a specific mobile communication network and the terminal is set to a power saving mode switching condition that lasts for a time corresponding to the value of the timer or more, wireless communication between the specific mobile communication network and the terminal is satisfied. The power saving mode that blocks the function allows the terminal to enter. May include a network control unit.

According to an embodiment of the present invention, a power saving mode is applied to a specific mobile communication network among a plurality of mobile communication networks included in one mobile communication system according to a traffic generation mode, thereby consuming unnecessary power of the mobile communication terminal. Can be reduced. In addition, if necessary, the strategy saving mode can be released, and the application of the power saving mode is differently applied according to the terminal and the subscribers of the terminal, so that the quality of the mobile communication service provided to the terminal can also be guaranteed. have. In addition, by appropriately selecting a mobile communication network to process traffic related to the mobile communication service based on setting information provided for each type of mobile communication service that can be provided by the terminal, rational operation of the mobile communication system is promoted and the terminal user Satisfaction can be maximized.

1 is a view for explaining a mobile communication environment in which several different mobile communication networks coexist.
2 is a diagram for illustratively explaining a mobile communication system to which an embodiment of the present invention can be applied.
3A and 3B are diagrams respectively illustrating configurations of a mobile communication terminal and a mobile communication network to which a power saving mode is applied according to an embodiment of the present invention.
FIG. 4 is a diagram for explaining a process of applying and releasing a power saving mode in a mobile communication terminal and a mobile communication network according to an embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only the embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to completely inform the person having the scope of the invention, and the present invention is only defined by the scope of the claims.

In describing embodiments of the present invention, when it is determined that a detailed description of known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may be changed according to intentions or practices of subscribers, operators, and the like. Therefore, the definition should be made based on the contents throughout this specification.

1 is a view for explaining a mobile communication environment in which several different mobile communication networks coexist. The various mobile communication networks may be any one, but in FIG. 1, two types, each of which are already commercialized and widely used standards, long term evolution (LTE) and next generation standard 5G (5-generation), are respectively used as mobile communication standards. It is assumed that there is a mobile communication network.

In the case of the 5G commercialization early LTE network, coverage (1) is relatively wide compared to 5G network coverage (2a to 2d), and may include all of 5G network coverage (2a to 2d). On the other hand, in the case of 5G network, coverage may be inferior to that of LTE network, but data transmission speed is relatively fast through the introduction of new technology. These assumptions are considered to show the effect when the present invention is applied, and the main subject matter of the present invention is applicable without being limited according to generation or coverage of a specific communication system.

Based on the characteristics of each mobile communication network, a service in which seamless transmission and reception is important (voice communication service, UDP-based media transmission service, etc.) or a service that generates data of small size intermittently (text message service, push alarm service, etc.) ) Has a wide coverage so that even when the mobile communication terminal moves, it can be provided to the terminal using an LTE network capable of stable data communication. In addition, a service that needs to transmit and receive a large amount of data (large file transfer service, VOD service, etc.) or a web-based service can be provided to a terminal using a 5G network capable of high-speed data transmission. Particularly, a service to be provided using the above-mentioned 5G network must rapidly transmit and receive a relatively large amount of data once data transmission is started. ) Is characterized in that data transmission starts only when requested.

However, new networks, such as 5G networks, which do not have sufficient infrastructure yet, may not sufficiently cover all areas in which services are needed, compared to existing networks, such as LTE networks, which have already entered commercialization. Accordingly, as shown in FIG. 1, a coverage hole 3 that a 5G network cannot cover may occur. When the terminal is located in the coverage hole, a problem may occur that the terminal cannot receive a service provided using a 5G network.

2 is a diagram for illustratively explaining a mobile communication system to which an embodiment of the present invention can be applied. The mobile communication system 10 of FIG. 2 is a system for providing a mobile communication service to the terminal 11, and may include two or more mobile communication networks having different mobile communication standards. As illustrated exemplarily in FIG. 1, in FIG. 2, the mobile communication system 10 may include an LTE network and a 5G network as the two or more mobile communication networks. In Figure 2, E-UTRAN (evolved universal terrestrial radio access network, 21) and MME (mobility management entity, 22) are sub-components of the LTE network, 5G AN (31) and AMF (access and mobility management function, 32) ) Is a sub-component of 5G network. Since the sub-elements of the LTE network and the 5G network follow what is defined in the standard, further detailed description is omitted here.

3A and 3B are diagrams illustrating configurations of a mobile communication terminal and a mobile communication network to which a power saving mode is applied according to an embodiment of the present invention, respectively. However, since the detailed configuration of the terminal 100 and the mobile communication system 200 of FIGS. 3A and 3B is only an embodiment of the present invention, the technical spirit of the present invention is not limitedly interpreted by FIGS. 3A and 3B.

First, the terminal 100 of FIG. 3A may include a communication unit 110, a control unit 120, and a mode switching unit 130. The terminal 100 is a device for providing various mobile communication services to a user by accessing the mobile communication system 200, and portability and mobility such as a smart phone, a tablet PC, and a smart watch. This may be a guaranteed hand-held-based mobile communication device.

The communication unit 110 may transmit or receive data between the mobile communication system 200 through a wireless channel under the control of the control unit 120. The data transmitted through the communication unit 110 may be a control signal or a data signal. The communication unit 110 may include a data bus for receiving data, a wired / wireless communication module, or the like, and in some cases, a computing device such as a microprocessor.

The controller 120 may control the overall operation of the terminal 100. Specifically, the controller 120 may request or notify the mobile communication system 200 through the communication unit 110 or receive necessary information from the mobile communication system 200. Here, the necessary information may be a value of a timer for a power saving mode or setting information about a mobile communication service provided to the terminal 100 from the mobile communication system 200. In particular, such setting information may be provided for each mobile communication service according to the characteristics of each mobile communication service, and may include information on which mobile communication standard to use when performing data transmission for each mobile communication service. You can.

In addition, the controller 120 determines whether a power saving mode switching condition or a power saving mode release condition is satisfied by using the timer value and information such as traffic generation pattern between the terminal 100 and the mobile communication system 200. can do. The control unit 120 may be implemented to include a computing device such as a microprocessor along with a mode switching unit 130 to be described later.

The mode switching unit 130 may enter the terminal 100 into the power saving mode based on the determination of the control unit 120 and may release the terminal 100 operating in the power saving mode from the power saving mode. .

The mobile communication system 200 of FIG. 3B may include a network communication unit 210, a network control unit 220, and a subscriber information database 230. The mobile communication system 200 may include two or more types of mobile communication networks using different mobile communication standards. Hereinafter, it is assumed that the mobile communication system 200 includes a first network and a second network as such a mobile communication network. The first network may be a network having the same characteristics as the 5G network described in FIG. 1, and the second network may also be a network having the same characteristics as the LTE network described in FIG. 1.

The network communication unit 210 may transmit or receive data between the terminal 100 through a wireless channel under the control of the network control unit 220. The network communication unit 210 may include components necessary for wireless communication with the terminal 100, such as a base station. Of course, as the mobile communication system 200 includes the first network and the second network, the network communication unit 210 may also include both the base station of the first network and the base station of the second network.

The network controller 220 may control the overall operation of the mobile communication system 200. Specifically, the network control unit 220 transmits or receives necessary information between the terminal 100 through the network communication unit 210, or performs approval for a request for using the power saving mode of the terminal 100. You can perform the operation. In addition, the network control unit 220 may provide a mobile communication service to the terminal 100 through the network communication unit 210 using one of the mobile communication networks included in the mobile communication system 200. . Here, providing a mobile communication service using a mobile communication network means that data related to the mobile communication service is transmitted through the mobile communication network.

The mobile communication network to be used for the provision of the mobile communication service may be differently determined according to the type of the mobile communication service as exemplarily described with reference to FIG. 1, and specifically, a setting defined for each mobile communication service It can be decided according to information. Accordingly, the control unit 120 of the terminal 100 may also be provided with a mobile communication service through the communication unit 110 using one of the mobile communication networks according to the type of the mobile communication service. More specifically, the control unit 120 may transmit or receive data related to the mobile communication service provided by the terminal 100 using a mobile communication network determined according to setting information of the mobile communication service. .

IP flow information may be used to classify the mobile communication service. IP flow information includes one or more of a source IP address, a destination IP address, a protocol ID, a source port number, and a destination port number. It may include. In addition, a unique identifier allocated for each application in a specific platform (eg, Android, IOS, Windows, etc.) may be used to classify the mobile communication service.

The mobile communication control unit 220 may include a first control unit 221 that controls the first network and a second control unit 222 that controls the second network. For example, in FIG. 2, the first control unit 221 may correspond to the AMF 32, and the second control unit 222 may correspond to the MME 22. In addition, the mobile communication control unit 220 may further include a policy server (rule server, 223), the policy server 223 determines the policy related to the power saving mode operation for the terminal 200, or each movement Setting information defined for each communication service may be generated. The policy server 223 may be implemented as a packet control function (PCF) or a policy and charging rule function (PCRF).

The subscriber information database 230 may store information about each terminal 100 subscribed to the mobile communication system 200 and subscribers of the corresponding terminal 100. The policy server 223 of the mobile communication control unit 220 determines whether to approve the use of the power saving mode for the terminal 100, or when determining the value of the timer for the terminal 100 when the use is approved, the subscriber The information stored in the information database 230 can be used. The subscriber information database 230 may be a unified data management (UDM) or a home subscriber server (HSS).

The subscriber information database 230 may be specifically implemented as a computer readable recording medium, and examples of such a computer readable recording medium include magnetic media such as hard disks, floppy disks, and magnetic tapes, CD-ROMs, DVDs, and the like. Hardware devices specially configured to store and execute program instructions, such as optical media, magneto-optical media such as floptical disks, and flash memory. Can

FIG. 4 is a diagram for explaining a process of applying and releasing a power saving mode in a mobile communication terminal and a mobile communication network according to an embodiment of the present invention. In describing the process of FIG. 4, descriptions of parts overlapping with FIGS. 1 to 3B may be omitted. The process of FIG. 4 may be performed while the terminal 100 is registered in both the first network and the second network of the mobile communication system 200, and details of the registration are 3GPP (3rd Generation Partnership Project) standards. Can follow.

First, the control unit 120 of the terminal 100 may request the mobile communication system 200 to approve the use of the power saving mode through the communication unit 110 (S101). The power saving mode may be a mobile initiated communication only (MICO) mode, but is not limited thereto. The request of the terminal 100 may be made in the initial registration process, but when it is considered that the use of the power saving mode is necessary even in the operation process after the initial registration, the terminal 100 triggers the registration process again You can also perform the request by (trigger).

However, even when the terminal 100 does not request the mobile communication system 200 to request permission to use the power saving mode, the mobile communication system 200 is based on the type of the terminal 100 or subscriber information, In the initial registration process of the terminal 100, at its own discretion, the terminal 100 may be set as a terminal to be used in a power saving mode. If the situation in which the power saving mode is not allowed in the mobile communication system 200 and then switched to allowable, the mobile communication system 200 may notify the terminal 100 of the change of the situation. Then, the terminal 100 may start using the power saving mode while performing the registration process.

When the request is received, the first control unit 221 requests the information regarding the power saving mode and transmission control for each service to the policy server 223, and the policy server 223 processes the request It can be performed (S102). More specifically, the policy server 223 may obtain information about the terminal 100 and subscribers of the terminal 100 stored in the subscriber information database 230. Subsequently, the policy server 223 may determine whether to approve the request for using the power saving mode transmitted from the terminal 100 based on the obtained information, and, if approved, determine a timer value for the terminal 100 have.

The policy server 223 may determine whether to approve the request based on the type of the terminal 100 or the type of mobile communication service to which the subscriber of the terminal 100 subscribes. For example, the policy server 223 may approve or reject the request depending on whether the terminal 100 is a general smartphone, an Internet of things (IoT) terminal, or another type of terminal. It might be.

In addition, the value of the timer in the case of approval may be differently determined according to the type of the terminal or the type of mobile communication service to which the subscriber of the terminal 100 subscribes. On the other hand, the policy server 223 may determine which of the mobile communication networks belonging to the mobile communication system 200 to which the power saving mode is applied, and when there are a plurality of networks to be applied to the power saving mode, these The timer value can be set separately for each.

In addition, the policy server 223 may determine setting information for each mobile communication service that can be provided to the terminal 100 from the mobile communication system 200. Such setting information may include information about which mobile communication service each mobile communication service uses to perform data transmission, and in particular, the characteristics of each mobile communication service as described with reference to FIG. 1 or It may be determined based on the battery saving effect of the terminal 100.

In some mobile communication services, there may be two or more mobile communication networks set by setting information to be used for data transmission. For example, a specific mobile communication service may be set to use both 5G network and LTE network. In this case, a priority may be set between a plurality of mobile communication networks available for the mobile communication service, and accordingly, the mobile communication service may basically use a mobile communication network having the highest priority for data transmission. If it is not possible to use the mobile communication network with the highest priority, the next priority mobile communication network can be used for data transmission.

The data such as whether to approve the use of the power saving mode described so far, the timer value, and the setting information for each mobile communication service, the terminal by the first control unit 221 receiving the data from the policy server 223 ( 100) may be transmitted (S103). Meanwhile, instead of receiving some of the data from the policy server 223, the first control unit 221 may directly generate the data based on the instructions of the policy server 223. The data transmitted to the terminal 100 may be included in a registration accept message transmitted to the terminal 100 or may be transmitted in a separate UE configuration update message. That is, in the transmission of the data, the data generated by the policy server 223 may be transmitted to the terminal 100 as it is via the first control unit 221, but based on the information received from the policy server 223. Data generated by the first control unit 221 may be transmitted to the terminal.

Next, the controller 120 of the terminal 100 performs the internal setting of the terminal 100 necessary for the application of the power saving mode when the request for approval and the timer value are received from the first controller 221 It can be (S104). Next, in order to receive a mobile communication service from the mobile communication system 200, the controller 120 connects to a first network (eg, creates a PDU session when the first network is a 5G network) and a second network (eg, a second network). 2 If the network is an LTE network, it may perform a connection with (PDN connection creation) (S105 and S106). Here, since the connection with the second network may not be directly related to the power saving mode, the step S106 may be made in advance of the authorization, regardless of the authorization for the power saving mode.

In addition, the controller 120 may start counting the timer (S107). For example, if the value of the received timer is 30 seconds, the controller 120 may determine that the timer has expired 30 seconds after the count starts.

The control unit 120 is a traffic (user traffic) between the mobile communication system 200 and the terminal 100 using a target network that is a specific network that is preset as an application target of power saving mode among the mobile communication networks of the mobile communication system 200. And control signaling), it may be determined whether the power saving mode switching condition, which is a condition that lasts for a time corresponding to the value of the timer, is satisfied (S108). Here, it will be assumed that the first network is the target network and the timer value is 30 seconds. However, as described above, both the first network and the second network may be set as the target network. In this case, a timer value may be set for each of the first network and the second network, and whether the power saving mode switching condition is satisfied may also be individually determined for each network.

In the above-described assumption, the controller 120 has a state in which no uplink or downlink traffic or control signaling using the first network between the mobile communication system 200 and the terminal 100 does not occur 30 If it has been continued for a second, it may be determined that the power saving mode switching condition is satisfied, and it may not be considered whether traffic is generated using a second network other than the target network.

For the implementation of the above function, the controller 120 may reset the timer whenever traffic or signaling using the first network occurs (S109), and when the timer expires, it is determined that the power saving mode switching condition is satisfied Then, the mode switching unit 130 may be controlled to switch the terminal 100 to the power saving mode.

The mode switching unit 130 is a power saving mode that does not perform a wireless communication (access stratum) function between the mobile communication system 200 and the terminal 100 using the target network when the power saving mode switching condition is satisfied. (100) can be entered (S110). For example, the mode switching unit 130 may block a function for wireless communication between the mobile communication system 200 and the terminal 100 through the first network as a target network and reduce power consumption. In this case, the connection between the mobile communication system 200 and the terminal 100 through the second network may not be affected despite the blocking.

For the blocking, the mode switching unit 130 stops the function of a part of the components of the terminal 100 that performs data communication with the first network through a method such as blocking power supply to the part. I can do it.

As described above, while the service provided through the first network, which is the target network, the continuity of service is relatively insignificant, the battery power of the terminal 100 may be consumed a lot due to the transmission of large amounts of data. In fact, even if traffic through the first network has not occurred for a relatively long time, if the connection between the first network and the terminal 100 is continuously maintained or traffic transmission is monitored, power consumption will be large.

Therefore, in an embodiment of the present invention, when a state in which traffic through the target network does not occur continues for a predetermined time or more, by entering the terminal 100 in the power saving mode as described above, the power of the battery of the terminal 100 To save money. In addition, the service of the terminal 100 due to the power saving mode is determined by adaptively determining whether to approve the use of the power saving mode and the timer value as a reference for the predetermined time according to the type and subscription information of the terminal 100 Quality reduction can be minimized. If the frequency of traffic occurrence is high and the responsiveness is important, the timer value is set to be long so that the terminal 100 can perform communication rather than putting the terminal 100 in a low power state for a specific network, and the traffic generation cycle is long and the responsiveness In the case of the non-critical terminal 100, the timer can be shortened to reduce power consumption.

When the switch to the power saving mode is completed, the control unit 120 may notify the mobile communication system 200, more specifically, the first control unit 221 of the completion of the switching (S111). Then, the first control unit 221 may block downlink traffic to the terminal 100 through the first network. For example, the first control unit 221 does not allocate radio resources to the downlink data transmission to the terminal 100 through the first network, or includes the network control unit 220, received by the core network of the network system 200 , It may not perform buffering for downlink data on the terminal 100 to which the power saving mode is applied. Even when the downlink data is transmitted to the terminal 100, the terminal 100 that has deactivated the function of performing data communication with the first network by entering the power saving mode cannot receive the downlink data. This is because the transmission and buffering can be useless. Through the operation of the first control unit 221, efficient use of radio resources and storage space in the network can be achieved.

In a state in which the terminal 100 operates in a power saving mode, the control unit 120 may determine that it is necessary to transmit data from the terminal 100 to the mobile communication system 200 using the first network as a target network. (S112). That is, when uplink data related to a mobile communication service using a first network is to be transmitted (for example, when a user of the terminal 100 wants to transmit a request related to the mobile communication service to the mobile communication system 200) There may be.

Hereinafter, a specific mobile communication service to which the uplink data should be transmitted will be referred to as a target mobile communication service. According to the setting information of the target mobile communication service, the first network designated as the target network may be set to be used primarily for data transmission related to the target mobile communication service. However, as described above, the mobile communication network that the target mobile communication service can use in the next order may be set by setting information. For example, the target mobile communication service may preferentially use the first network, but may be set by setting information that the second network may be used when the first network is unavailable.

As described above, when the target mobile communication service setting information is set, when the use of the first network is impossible due to the power saving mode, the controller 120 operates in the normal mode without releasing the power saving mode of the first network. Data transmission for the target mobile communication service may be performed using the second network (S113, S114).

On the other hand, when it is prescribed to use only the first network in the setting information of the target mobile communication service, the data transmission is bound to be performed using the first network. In this case, since the power saving mode has to be released, the controller 120 may control the mode switching unit 130 to release the terminal 100 from the power saving mode (S115).

For example, the mode switching unit 130 may re-activate a function of a portion of the terminal 100 that performs data communication with the first network. Then, data transmission and reception using the first network between the terminal 100 and the mobile communication system 200 may be possible again. The control unit 120 may notify the mobile communication system 200 that the power saving mode has been released, and more specifically, the first control unit 221 (S116). Accordingly, the first control unit 221 also releases a state in which downlink data transmission to the terminal 100 through the first network is blocked, so that traffic from the mobile communication system 200 using the first network to the terminal 100 Can resume.

In general, as described so far, the controller 120 allows the use of a mobile communication network other than the target network to which the power saving mode is applied in the setting information for the target mobile communication service. ), A mobile communication network other than the target network may be used. On the other hand, if the setting information does not allow the use of a mobile communication network other than the target network, the control unit 120 may use the target network after canceling the power saving mode for the data transmission.

As a criterion for determining whether to allow the use of a mobile communication network other than the target network for the target mobile communication service, characteristics of the target mobile communication service may be used. If intermittent small data needs to be generated by the target mobile communication service, considering the signaling overhead and battery consumption due to application and release of the power saving mode to the terminal 100, the target mobile communication service It is possible to allow the use of a mobile communication network other than the target network.

On the other hand, when the target mobile communication service requires high-speed data transmission (such as file transfer), or when steady data transmission occurs continuously (such as voice communication or video streaming), the target mobile communication service moves outside the target network. By disallowing the use of a communication network, the power saving mode can be released and the target network can be used for data transmission.

Meanwhile, a situation in which the target network cannot be used may occur not only by the power saving mode but also by the coverage hole 3 described with reference to FIG. 1. For example, since the terminal 100 cannot use the first network, the terminal 100 may enter an area where only the second network can be used. Even in this case, if the first network, which is the target network to which the power saving mode is applied, is preferentially used in the setting information for the target mobile communication service, but the use of the second network is allowed when the first network is unavailable, The control unit 120 may use a second network other than the target network for data transmission to the mobile communication system 200 related to the target mobile communication service.

As described so far, in an embodiment of the present invention, the wireless communication function between the mobile communication system 200 and the terminal 100 through a specific target network among a plurality of mobile communication networks included in the mobile communication system 200 is blocked. By applying the power saving mode to the terminal 100 under certain conditions, power consumption of the terminal 100 can be reduced. In addition, by appropriately releasing the power saving mode applied to the terminal 100 as necessary, it is possible to prevent excessive use of the mobile communication service through the target network. In addition, by using a timer as a condition for determining the entry into the power saving mode, the terminal 100 repeatedly prevents the quality of the mobile communication service from deteriorating by repeatedly entering and releasing the power saving mode. have. In addition, by appropriately considering the characteristics of each mobile communication service for each mobile communication service to handle the traffic related to the mobile communication service, it is possible to promote the rational operation of the mobile communication system and maximize the satisfaction of the terminal user. .

Combinations of each block in the block diagrams and respective steps in the flow diagrams attached to the present invention may be performed by computer program instructions. These computer program instructions may be mounted on an encoding processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, so that the instructions performed through the encoding processor of a computer or other programmable data processing equipment may include each block in the block diagram or In each step of the flowchart, means are created to perform the functions described. These computer program instructions can also be stored in computer readable or computer readable memory that can be oriented to a computer or other programmable data processing equipment to implement a function in a particular way, so that computer readable or computer readable memory The instructions stored in it are also possible to produce an article of manufacture containing instructions means for performing the functions described in each block or flowchart step of the block diagram. Since computer program instructions may be mounted on a computer or other programmable data processing equipment, a series of operational steps are performed on the computer or other programmable data processing equipment to create a process that is executed by the computer to generate a computer or other programmable data. It is also possible for instructions to perform processing equipment to provide steps for executing the functions described in each block of the block diagram and in each step of the flowchart.

Further, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing the specified logical function (s). It should also be noted that in some alternative embodiments it is also possible that the functions mentioned in blocks or steps occur out of order. For example, two blocks or steps shown in succession may in fact be executed substantially simultaneously, or it is also possible that the blocks or steps are sometimes performed in reverse order depending on the corresponding function.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains may make various modifications and variations without departing from the essential quality of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

According to an embodiment of the present invention, while reducing unnecessary power consumption of the mobile communication terminal through the application of the power saving mode, the application of the strategy saving mode is released as necessary, and whether the application of the power saving mode is allowed is determined by the terminal and By applying differently according to the subscriber of the terminal, it is possible to guarantee the quality of the mobile communication service provided to the terminal. In addition, by appropriately selecting a mobile communication network to handle traffic related to a mobile communication service for each mobile communication service, rational operation of the mobile communication system can be promoted and satisfaction of a terminal user can be maximized.

100: terminal
110: communication department
120: control unit
130: mode switching unit
200: mobile communication system
210: network communication unit
220: network control
221: first control unit
222: second control
223: Policy Server
230: subscriber information database

Claims (11)

A mobile communication terminal provided with a mobile communication service from a mobile communication system,
Requesting approval for the use of the power saving mode to the mobile communication system, and in response to the request, determined from the mobile communication system according to the timer value for the power saving mode and the type of the mobile communication service A communication unit that receives setting information;
The mobile communication service is provided through the communication unit using one of a plurality of mobile communication networks included in the mobile communication system selected based on the setting information, and the power saving mode is applied among the plurality of mobile communication networks. A controller configured to determine whether a condition in which no traffic is generated between a specific mobile communication network and the terminal set as a target is satisfied in a power saving mode switching condition that lasts longer than a time corresponding to the value of the timer; And
And a mode switching unit that enters the terminal into a power saving mode that blocks a wireless communication function between the specific mobile communication network and the terminal when the power saving mode switching condition is satisfied.
Mobile communication terminal with power saving mode applied. According to claim 1,
The control unit, in the state in which the terminal operates in the power saving mode, the specific mobile communication network from the terminal related to a specific mobile communication service set to use the specific mobile communication network by the setting information of the mobile communication service When it is determined that data transmission to the furnace is required, the data transmission is performed through the communication unit using a mobile communication network other than the specific mobile communication network among the mobile communication networks, or the power saving mode is canceled by controlling the mode switching unit After that, the data transmission is performed through the communication unit using the specific mobile communication network.
Mobile communication terminal with power saving mode applied. According to claim 2,
The control unit uses a mobile communication network other than the specific mobile communication network for the data transmission when the setting information for the target mobile communication service permits the use of a mobile communication network other than the specific mobile communication network, and does not allow it. If not, use the specific mobile communication network after canceling the power saving mode for the data transmission.
Mobile communication terminal with power saving mode applied. According to claim 1,
The control unit may transmit data from the terminal to the mobile communication system regarding a specific mobile communication service set to use the specific mobile communication network by the setting information among the mobile communication services outside the coverage of the specific mobile communication network. When it is determined that transmission is required, when the use of a mobile communication network other than the specific mobile communication network is allowed in the setting information for the specific mobile communication service, a mobile communication network other than the specific mobile communication network is used among the mobile communication networks. To perform the data transmission through the communication unit
Mobile communication terminal with power saving mode applied. The method according to any one of claims 1 to 4,
The control unit notifies the mobile communication system of the occurrence of the switchover or the release when the switch to the power saving mode or the release of the power saving mode occurs for the terminal.
Mobile communication terminal with power saving mode applied. A mobile communication system that provides a mobile communication service to a mobile communication terminal,
The network communication unit receives an authorization request for use of the power saving mode from the mobile communication terminal, and in response to the authorization request, a timer value for the power saving mode and a plurality of movements included in the mobile communication system In order to determine a mobile communication network to be used to provide the mobile communication service among communication networks, setting information determined according to the type of the mobile communication service is transmitted to the terminal, and the target of the power saving mode is applied to the mobile communication network. When a condition in which no traffic is generated between a specific mobile communication network and the terminal is set to a power saving mode switching condition that lasts for a time corresponding to the value of the timer or more, wireless communication between the specific mobile communication network and the terminal is satisfied. The terminal in a power saving mode that blocks the function It includes a network control unit to allow entry
Mobile communication system with power saving mode. delete The method of claim 6,
The mobile communication system further includes a subscriber information database that stores information about the terminal,
The network control unit determines whether to approve the approval request based on the information on the terminal, and when the approval request is approved, based on at least one of information on the terminal and the type of the specific mobile communication network. Determining the value of the timer for the terminal and transmitting it to the terminal through the network communication unit
Mobile communication system with power saving mode. The method of claim 6,
In the case where the connection between the mobile communication network to be used for providing the mobile communication service and the terminal is blocked, the setting information is a mobile communication network to be used for providing the mobile communication service among the plurality of mobile communication networks. Including information on whether to allow data related to the mobile communication service to be transmitted to another mobile communication network.
Mobile communication system with power saving mode. The method of claim 6,
The network control unit blocks the traffic from the specific network to the terminal when a message indicating that the terminal satisfies the power saving mode switching condition is received from the terminal.
Mobile communication system with power saving mode. The method of claim 6,
The network control unit resumes traffic from the specific network to the terminal when a message indicating that the terminal has released the power saving mode is received from the terminal.
Mobile communication system with power saving mode.

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