KR101608486B1 - Method for Controlling Energy Saving Mode of User Dedicated Apparatus on the basis of User Mobile Phone Lacation and Energy Saving Manager therefor - Google Patents

Abstract

Disclosed are a method for controlling an energy saving mode of a user dedicated target apparatus based on a terminal position, and an energy saving manager server therefor. The energy saving manager server of the present invention identifies how far a mobile communications terminal is from a target apparatus based on a macro cell arrangement of a mobile communications network. When all terminals registered in the target apparatus are identified to be strayed from a range beyond a certain range, the energy saving manager server can progress an operation mode of a corresponding target apparatus as a sleep mode or a deep sleep mode.

Description

TECHNICAL FIELD [0001] The present invention relates to a method of controlling a power saving mode of a user dedicated device based on a terminal location, and a power saving manager server for the method.

The present invention relates to a method of controlling a power saving mode of various devices based on the position of a user mobile communication terminal and a power saving manager server therefor.

Some of the devices are always supplied with power so that they can operate without a separate control command of the user or at least stay in a standby state. For example, various devices within a home may correspond to such devices, as well as network devices such as a home gateway device, an access point, and a femtocell base station.

Unless specifically provided for the public, these devices have an operation mode such as Sleep-mode for power saving to minimize their energy consumption while there is no special event.

For example, the femtocell base station device is a base station that provides a mobile communication service to a femtocell having a radius of about 200 m or so, and is installed in a region where a radio wave of a public mobile communication network is deteriorated or in a shaded area, The quality of the service can be improved. Accordingly, the femtocell base station is provided for building a private access network of a mobile communication network in a private home or office apart from a public mobile communication network.

However, unlike the public mobile communication network, the user must bear the electric charges for the femtocell operation. A femtocell base station configured in a stand-alone mode, unlike a public mobile communication network in which a service must always be provided, does not need to operate the corresponding network when a user is absent, Depending on the status, you can turn the power on and off.

Since these devices are generally made up of a single cell, energy saving (ES) method of changing the coverage in cooperation with neighboring cells can not be fundamentally used. Therefore, in the case of a femtocell or an access point device installed for this purpose, an energy saving technique different from that used in a public mobile communication network should be applied.

For this reason, it is effective to use a power saving mode, that is, a sleep mode, as an energy saving method for reducing the maintenance cost in a stand-alone system such as a femtocell or an access point.

There are various methods of setting the femtocell or the access point apparatus to the sleep mode, for example, as follows.

A timer that turns on or off the device according to a specific time period can be used. This method has advantages that it is easy to implement and has energy saving effect when entering into the sleep mode, but it has a disadvantage that it is difficult to exactly match the usage pattern of the user and thus the user satisfaction and the power saving effect are lowered.

In case of a device supporting a plurality of radio access technologies (RAT), only one radio access technology (RAT) operates in the active state in the sleep mode, and when the user is detected, the remaining radio access technology (RAT) Can be used. For example, in the case of a device in which an LTE femtocell, a Wi-Fi access point, and Bluetooth are integrated into one, in the sleep mode, the WiFi module and the Bluetooth module are turned off and only the LTE femtocell is turned on. Can access the femtocell and turn on the WiFi module and the Bluetooth module. This method has an advantage in that the user can accurately detect the entry into the sleep mode and the wake-up time of the sleep mode according to the user's access. However, since one of the wireless connection technologies (RAT) It is not effective in terms of energy saving. In addition, since the coverage of such a small-sized power unit is small, it can be detected only when the user approaches the mobile terminal. If there is a shadow area, the ping pong phenomenon occurs .

The UE enters a sleep mode when the user's connection is not maintained for a predetermined time. In the sleep mode, the SINR (Signal-to-Interference-plus-Noise Ratio) of the uplink is periodically measured, It may be possible to use a re-operation method. In this method, only the radio frequency module and the minimum processing module are awake in the sleep mode, so that a medium energy saving effect can be expected. However, since the user can not be identified at the time of SINR measurement, the energy saving effect is reduced due to the inaccuracies that are continuously restarted unnecessarily at places where the flow population is large. Also, this method can be detected only by the user in the near distance as in the previous method, and the ping pong phenomenon can be a problem.

In addition to the femtocell base station, a power saving function may be required in various devices. However, such a power saving function should be accurately predicted and applied to the absence of a user.

It is an object of the present invention to provide a method of controlling a power saving mode of a user-dedicated device such as a femtocell base station, a home gateway, and an access point based on a location of the user mobile communication terminal, and a power saving manager server therefor.

In the present invention, an apparatus to which a power saving (ES) technique is applied will be referred to as a target apparatus for convenience. The target device may be a device located in the home or office, and may be a general device such as a cooling / heating device or the like as well as a network device such as a femtocell base station, an access point (AP) or a home gateway.

When the target device is a femtocell, it is preferable that the target device operates in a user limited manner due to the characteristics of the proposed technique. That is, the cell access mode of the femtocell preferably operates as a hybrid or dedicated (closed) mode. It is preferable that the target device has a function of, for example, a network trigger (Wake up) function so as to enable the power saving manager server to perform the re-operation control. A typical technology of the network trigger method is Wake-on-LAN (WOL).

According to another aspect of the present invention, there is provided a power saving mode control method of a power saving manager server for a power saving mode control target device, the power saving mode being a macro cell in which the power saving manager server partially overlaps coverage of the target device Setting a macrocell adjacent to the home-zone to a neighboring-zone; Receiving a 'location registration message' to be transmitted when the power saving manager server is out of the neighboring zone from the mobile terminal mapped to the target device; And switching the operation mode of the target device to the power save mode when the awake location registration message is received from all terminals mapped to the target device as a result of repeating the receiving step do.

According to an embodiment, when the MS does not receive a signal from all the macro cells belonging to the home-zone and the neighboring zone, the MS may determine that the neighboring zone is out of the neighboring zone and send the AWG.

According to another embodiment, in the control method of the present invention, when the power saving manager server returns to the home-zone from at least one terminal mapped to the target apparatus while the target apparatus is in the power save mode, And returning the operation mode of the target device to the operation mode before the power saving mode when the 'home location registration message' is received.

Here, in the case where the target device is a femtocell base station that goes to a sleep mode when the terminal is out of the femtocell coverage, the power saving mode is a deep sleep mode in which the power of the target device in the sleep mode is turned off, Mode may be the sleep mode.

Further, when the target apparatus is a femtocell base station, the home-zone may correspond to a macro cell overlapping at least part of the femtocell coverage of the femtocell base station among macro cells of the mobile communication network.

According to another embodiment of the present invention, the mobile communication terminal can not receive a signal from a macro-cell belonging to the home-zone, enters a neighboring state in which a signal is received from a macro-cell belonging to the neighboring zone, Time registration message "to the power saving manager server when the time is reached.

The method of the present invention is also applicable to a device such as a power saving manager server and a terminal for performing such operations.

The power saving manager server of the present invention includes a database and a mode control unit. The database manages a zone list and a user list, wherein the zone list is a list of home-zones and neighboring zones, and the user list is a list of terminals mapped to the target device to be. The mode control unit performs an operation of the power saving manager server of the above method. Accordingly, the mode control unit performs power saving mode control for the target device by receiving the 'AREA location registration message' transmitted when the terminal is out of the neighbor zone, and when receiving the 'home location registration message' (The normal mode or the sleep mode).

In accordance with the present invention, it is necessary to enable re-operation control by the power saving manager server in order to wake up in the sleep mode. Therefore, in the sleep mode (or standby mode), the re- Network Interface Card) standby power is consumed.

Compared with the conventional method in which the user directly detects whether the user is within the operation range, the method proposed in the present invention can predict a member for a long time because the user recognizes that the user moves a long distance. Therefore, this method can be applied together with existing sleep mode technology to apply a stepwise power saving mode and various levels of home automation policy.

1 is a block diagram of a power saving system of the present invention;
2 is a view showing an example of a zone according to the present invention,
3 is a diagram illustrating a state transition process of a terminal according to the present invention.
FIG. 4 is a diagram illustrating a process of entering a power saving mode according to the present invention, and FIG.
5 is a diagram for explaining a power saving mode cancellation process according to the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings.

The power saving system 100 of the present invention includes a target device 110, an energy saving manager 130, and a mobile communication terminal 150 (hereinafter simply referred to as a 'terminal').

The target device 110 is connected to the power saving manager server 130 and is an apparatus subject to the operation mode control related to the power saving of the present invention. The target device 110 may be a device located in a home or office, and may be a general device such as a cooling / heating device, as well as a network device such as a femtocell base station, an access point (AP) or a home gateway. Hereinafter, a femtocell base station will be described as an example.

The connection between the target device 110 and the power saving manager server 130 may be a wired or wireless IP network or a direct contact connection.

For the power saving mode control of the present invention, the target device 110 includes a mode driving unit 111. The mode driving unit 111 not only can perform the power saving mode operation defined by the sleep mode or the deep sleep mode of the target apparatus 110 itself but also the 'sleep mode control command' in connection with the power saving manager server 130 You can change the power saving mode.

Meanwhile, the target device 110 is associated with a 'User List'. The user list is a list of terminals 150 mapped to the target device 110, and a power saving mode control 'condition' judgment is used. The target device 110 may be a dedicated device for providing services only to terminals on the user list, but it is not necessary to provide the service only to the terminals on the user list. Conversely, the target device 110 may not provide service to any terminal on the user list. The target device 110 only needs to control its power saving mode according to the absence or access of the terminal 150 on the user list. Meanwhile, the terminal 150 may be registered in a user list of one target device 110 or a plurality of target devices 110.

The power saving mode of the target device 110 may be a sleep mode or a two-stage power saving mode of a conventional sleep mode and a deep sleep mode. Here, the 'conventional sleep mode' in (2) is a sleep mode of the target apparatus 110 itself not involved in the present invention, and the deep sleep mode is a sleep mode controlled by the present invention, to be. Therefore, the sleep mode of (1) and the deep sleep mode of (2) are controlled by the present invention.

When the deep sleep mode of the present invention is applied together with the conventional sleep mode, the target device 110 can perform multi-stage power saving. In this case, the process of the target device 110 advancing to the power saving mode has two steps of going from the normal mode to the conventional sleep mode to the deep sleep mode of the present invention. On the other hand, even if waking up from the deep sleep mode, the sleep mode can be awakened to the conventional sleep mode, and then the normal mode can be resumed.

It is preferable that the mode driving unit 111 supports a Wake-up On LAN (WOL) of a network trigger type in order to receive the mode control command of the power saving manager server 130. However, It is possible to use a wired or wireless connection method (for example, contact control). Also, the mode control command may have various forms, for example, a 'power off control command' for entering the deep sleep mode.

The power saving manager server 130 may control the target apparatus 110 to change the power mode according to the power saving mode control method of the present invention. The power saving manager server 130 may be a standard component of an EPC (Enhanced Packet Core) included in a mobile communication standard, or may be a node on an external network connected to an EPC as a simple application server.

For the power saving mode control, the power saving manager server 130 includes a mode control unit 131 and a database 133.

The mode control unit 131 checks the position of the terminal 150 and controls the power saving mode of each target device 110. Here, the mode control of the power saving manager server 130 may actually be provided to the target device 110, but may perform mode control in a more specific form such as controlling to turn on / off the power.

In the database 133, a user list, a zone list, and a user status list are stored and managed for each of the target devices 110. As described above, the user list is a list of terminals related to mode control of the target device 110.

<Manage zone list and download to terminal>

The zone list proposed by the present invention includes a home-zone (H-Zone) and a neighbor-zone (N-Zone) as a list of macrocells of a public mobile communication network. The home-zone refers to a mobile communication network macro cell in which the coverage of the target apparatus 110 or the target apparatus 110 is located, and the neighbor-zone refers to a macro cell circumscribed with a home-zone.

Here, the coverage may be the installation position of the target apparatus 110 itself, or it may be the operation range of the target apparatus 110. For example, when the target device 110 is a femtocell base station, a home-zone corresponds to a macro cell that overlaps with a femtocell, that is, a coverage area of the femtocell base station. FIG. 2A shows a case where a femtocell belongs to one macrocell and has one home-zone. FIG. 2B shows a case where a femtocell is overlapped with a plurality of macrocells to have a plurality of macrocells as a home-zone to be. If the target device 110 is an air conditioner, the air conditioner will be in the cooling / heating range.

The setting of the zone list may be manually performed by the administrator, or may be automatically performed using the target device 110 or the terminal 150.

The automatic method is possible when the target device 110 is a device (e.g., a femtocell base station) that supports a Network Monitoring Mode (NMM) function or an Automatic Neighbor Relation (ANR) function. The femtocell base station directly measures (1) the intensity (RSSI) of the signal received from the surrounding macrocell or collects the measured value of the terminal 150, (2) if the measured received signal strength is equal to or greater than a predetermined threshold value, Zone as a macro-cell belonging to the home-zone, and reports the result to the power-saving manager server 130. The neighbor-zone specifies all macro cells that are in contact with the home-zone.

The manual method can be applied to the case where the target device 110 is a femtocell base station or another device that does not support the monitoring mode function or the ANR function. For example, the power saving manager server 130 constructs a list of home-zone and neighboring zones by linking the LBS (Location Based Service) function with the geographical information system of the public mobile communication network, or the mobile communication network operator .

The power saving manager server 130 provides the set zone list to all the terminals 150 on the user list registered in the target device 110 so that all the terminals 150 on the user list of the target device 110 are in the same zone It is desirable to be able to maintain a list.

Meanwhile, the database of the power saving manager server 130 also stores and updates the target device-specific user state list. The user status list is a list of information on the current status of the user registered in the target device 110, and will be described below again.

The operation of the power saving manager server 130 centered on the mode control unit 131 will be described below again.

The terminal 150 is a terminal capable of accessing a mobile communication network and can receive a mobile communication service through a macro cell including a home-zone and a neighbor-zone. When the target device 110 is a femtocell base station, the mobile communication service may be provided from the target device 110 as well.

For the characteristic operation of the present invention, the terminal 150 includes a network interface unit 151, a telephone function unit 153 and a control unit 155. The control unit 155 is provided with a state management unit 157 for communicating with the power saving manager server 130.

The network interface unit 151 and the telephone function unit 153 serve as a network interface of the terminal 150 and the terminal 150 can be connected to the power saving manager 130 through any of them.

The network interface unit 151 refers to an interface such as a wireless LAN and the telephone function unit 153 refers to an interface such as a Wideband Code Division Multiple Access (WCDMA) or a Long Term Evolution (LTE) Voice call / video call / packet data communication function according to the communication protocol.

The control unit 155 controls the overall operation of the terminal 150 and includes a state management unit 157 specifically for performing the power saving method of the present invention.

The control unit 155 may be interpreted as a configuration specifically installed for the present invention, but may be a configuration that is generally installed to perform a main or basic function (e.g., telephone, communication, etc.) of the terminal 150. [ In the case where the control unit 155 is installed to perform the basic functions of the terminal 150 as described above, the control unit 155 includes a processor chip, which is hardware that the terminal 150 basically holds, (OS: Operating System) operating in accordance with an instruction from the user. In other words, a conventional terminal to which the present invention is not applied may also include a control unit 155.

In this case, the state management unit 157 may be an application that is software operating on the operating system program, and may be installed in an existing terminal for implementing the present invention. In other words, when the state management unit 157 of the present invention is installed in an existing terminal, the terminal 150 of the present invention is provided.

The state management unit 157 stores and manages the zone list, and performs a location registration procedure to the power saving manager server 130 in accordance with the location change.

In order to store the zone list, the status management unit 157 accesses the power saving manager server 130 via the network interface unit 151, downloads the list, and updates the list.

According to another embodiment, the state management unit 157 can receive and update the zone list from the power saving manager server 130 in the form of a signaling message of the NAS layer protocol. In this case, when the power saving manager server 130 is a standard component of EPC (Enhanced Packet Core) included in the mobile communication standard, it must be able to transmit the zone list in the signaling message of the NAS layer protocol. The method of using the signaling message should be preceded by a change of the mobile communication standard protocol.

&Lt; Terminal status registration >

The power saving mode control according to the present invention predicts the user (or the terminal) of the target device 110 as a target of control when the user (or the terminal thereof) is distant from the target device 110 by a predetermined distance and proceeds to the sleep mode or the deep sleep mode, This is a method of obtaining a power saving effect. Accordingly, the mode control unit 131 of the power saving manager server 130 checks whether all of the terminals 150 registered in the user list of the target apparatus 110 to be controlled are out of the home-zone and neighboring zones And the operation of the power saving manager server 130 is confirmed through state registration of the terminal 150. [

To this end, the state management unit 157 of the terminal 150 registers its state in the power saving manager server 130 based on its location (home-zone, neighbor-zone, etc.). The state management unit 157 first confirms its location, identifies the zone to which it belongs, and performs a state registration procedure to the power saving manager server 130 according to the result. In this case, the state registration is based on a predetermined home-zone, neighbor-zone list, and the home-zone and neighbor-zone lists of the target terminal 110 are registered in the home- - Zone list corresponds.

The state of the terminal 150 includes a home state (Home_State), a neighbor state (Neighbor_State) and an away state (Away_State) as shown in FIG. 3, and a state transition occurs between the states. The home state (Home_State) is a state in which the terminal 150 is receiving a cell signal belonging to a home-zone, the neighbor state (Neighbor_State) is a state in which a cell signal belonging to a neighboring- . The awaiting state (Away_State) is a state in which the terminal 150 does not receive a signal in any cell belonging to the home-zone and the neighboring-zone.

The state management unit 157 can perform a general cell search to check its state by measuring and evaluating the strength of a received signal from neighboring cells. The information used in this process may be different according to the RAT (Radio Access Technology) to which the present invention is applied. In the case of the terminal 150 that conforms to the mobile communication network protocol, the received signal strength indication (RSSI) Physical Cell Id) may be used.

The state management unit 157 registers the state change in the power saving manager server 130 when a change in the measurement result state occurs. The following Table 1 shows the performance of the state management unit 157 at the state transition.

Next State Home_State Neighbor_State Away_State

Current
State Home_State
- Neighbor_State
Start Timer HOME_STATE_DEREG
Start procedure Neighbor_State Neighbor_State
Stop Timer
- HOME_STATE_DEREG
Start procedure
Neighbor_State
Stop Timer Away_State HOME_STATE_REG
Start procedure
-
-

The state registration includes (1) an 'away state location registration' (HOME deregistration) performed when the terminal 150 of the home state (Home_State) or the neighbor state (Neighbor_State) is changed to the away state (Away_State) There is a &quot; home state location registration &quot; (home registration) performed in the case of entering the home state (Home_State) from the (Away_State). State registration is performed by (1) transmitting the 'away state location registration' message to the power saving manager server 130, (2) 'home state location registration' transmitting the 'home state location registration message' (HOME_STATE_DEREG) (HOME_STATE_REG) to the power saving manager server 130. [

When the status registration event occurs, the status management unit 157 transmits a corresponding message to the power saving manager server 130 together with the identifier (ID) of the target apparatus 110 related to the status registration event. According to the embodiment, the state management unit 157 may be implemented as a signaling message of the NAS layer protocol by including it in the mobile communication standard protocol.

The neighbor state timer (Neighbor_State Timer) is used to convert the state into the away state (Away_State) when the terminal 150 is located in the neighbor state (NEIGHBOR_STATE) for a predetermined time or more and determines that the terminal 150 is in the virtual away state. Neighbors state (NEIGHBOR_STATE) is also out of coverage of the target device 110, but there is room for returning to the home-state at any time, so it is difficult to control the deep sleep mode. However, since it is judged that the possibility of returning to the home-state is removed by staying in the neighbor-state for a predetermined time, the present invention uses the neighbor state timer to determine the virtual away state. When the neighbor state timer starts a countdown of a predetermined time and the time has elapsed, the state management unit 157 enters the Away_State state and transmits an 'ALE state registration message' (HOME_STATE_DEREG) to the power saving manager server 130 send.

Hereinafter, mode control of the target device 110 centering on the operation of the mode control unit 131 of the power saving manager server 130 will be described with reference to FIGS. 4 and 5. FIG.

<Sleep mode control>

The mode control unit 131 of the power saving manager server 130 receives the'AWT_STATE_DEREG 'from the state management unit 157 of the terminal 150 in step S401 and transmits the target device identifier ID) is extracted (S403) and the 'list of user states for each target device' is updated (S405).

Subsequently, the mode control unit 131 determines whether the target device 110 is already in the power off state (S407). If the target device 110 is already in the power off state, it does not perform another power saving mode control.

However, if it is determined in step S407 that all the terminals 150 registered in the target device 110 are in the awake state (Away_State), the target device 110 is powered on. That is, it is determined whether or not an'Average Status Location Registration Message '(HOME_STATE_DEREG) is received from all terminals registered in the user list of all the target devices 110. If any one of the users registered in the target device 110 is not in the away state (Away_State), the mode control is not performed (S409).

As a result of the determination in step S409, if all the devices are in the away state (Away_State), the target device 110 is requested to go to the sleep mode or the deep sleep mode. According to an embodiment, for example, the control command entering the deep sleep mode may be a 'power off command' (S411).

If the target device 110 is a femtocell base station, the terminal 110 may enter the sleep mode by itself when it determines that it is located outside the home-zone or in a neighbor-zone and is out of its femtocell coverage. In addition, the power saving manager server 130 of the present invention may be configured such that the target device 110 is provided with a service to the terminal 150 for a while because the terminal 150 is located at a sufficient distance from the macro cell range defined as the neighbor- It can be predicted that there is no need to do so. Accordingly, the power saving manager server 130 can control the target device 110 to enter the deep sleep mode, which is the next stage of the sleep mode.

<Sleep mode release>

When one of the registered terminals 150 enters the home-zone in the case where the target apparatus 110 is in the deep sleep mode (or the sleep mode without the deep sleep mode), the deep sleep mode should be released and return to the normal mode .

The mode control unit 131 of the power saving manager server 130 receives the home state location registration message HOME_STATE_REG from the state management unit 157 of the terminal 150 in step S501, The identifier is extracted (S503) and the 'list of user states for each target device' is updated (S505).

The mode control unit 131 determines whether the target device 110 has already been powered on (S507). If the target device 110 has already been powered on, the mode control unit 131 ignores the message and does not proceed with mode control.

If it is determined in step S507 that the target device 110 is in the deep sleep mode (or sleep mode without the deep sleep mode, for example, power off), the target device 110 is requested to return to the normal mode in the deep sleep mode do. According to the embodiment, for example, the return command may be a 'power on command' (S509).

If the femtocell base station that performs the two-step mode control of the sleep mode and the deep sleep mode is in the deep sleep mode by the method of the present invention, the target device 110 can save power when a single user enters the home- And wakes up to the sleep mode under the control of the manager server 130. In the sleep mode, the conventional mode is used to determine the normal mode returning condition. When the user enters the femtocell coverage, the target device 110 returns to the normal mode by itself.

In this way, the power saving mode control of the present invention is performed.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the invention as defined by the appended claims. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention.

Claims (12)

A power saving mode control method of a power saving manager server for a target apparatus to be subjected to power saving mode control,
Setting a macro cell overlapped with a coverage of the target device among the macrocells of the mobile communication network as a home-zone and a macro-cell adjacent to the home-zone as a neighboring zone;
Receiving a 'location registration message' to be transmitted when the power saving manager server is out of the home-zone and the neighboring zone from the mobile communication terminal mapped to the target device; And
The method further comprises changing the operation mode of the target device to the power saving mode when the awake location registration message is received from all terminals mapped to the target device as a result of repeating the receiving step Wherein the power saving mode control method comprises:
The method according to claim 1,
Wherein the terminal determines that both the home-zone and the neighboring-zone are out of order when the signal is not received from all macro cells belonging to the home-zone and the neighboring zone, A method of controlling the power saving mode of a device.
The method according to claim 1,
When receiving the 'home location registration message' to be transmitted when the power saving manager server returns to the home-zone from at least one of the terminals mapped to the target device while the target device is in the power saving mode, And returning the operation mode of the target device to the operation mode before the change to the power saving mode.
The method of claim 3,
When the target device is a femtocell base station that goes to a sleep mode when the terminal is out of femtocell coverage, the power saving mode is a deep sleep mode in which the power of the target device in the sleep mode is turned off,
Wherein the operation mode before the power saving mode is the sleep mode.
5. The method of claim 4,
Wherein when the target device is a femtocell base station, the home-zone is a macrocell that is partially overlapped with a femtocell coverage of the femtocell base station among macrocells of the mobile communication network.
The method according to claim 1,
If the mobile communication terminal fails to receive a signal from a macro cell belonging to the home-zone and enters a neighboring state in which a signal is received from a macro cell belonging to the neighboring zone and the mobile communication terminal reaches a predetermined time, And transmits the registration message to the power saving manager server.
1. A power saving manager server for performing a power saving mode control for a target apparatus to be subjected to power saving mode control,
The zone list and the user list are managed by setting a macro cell overlapped with a coverage of the target device among the macro cells of the mobile communication network as a home-zone and setting a macro cell adjacent to the home- And the user list is a list of terminals mapped to the target device as terminals receiving service in the mobile communication network; And
And a mode controller for receiving a 'location registration message' to be transmitted when the terminal is out of the home-zone and the neighboring zone and performing power saving mode control on the target device,
Wherein the mode control unit changes the operation mode of the target device to the power saving mode when the power saving manager server receives the awake location registration message from all terminals mapped to the target device.
8. The method of claim 7,
Wherein the AWR transmits the AWR when the MS does not receive a signal from all macro cells belonging to the home-zone and the neighboring zone.
8. The method of claim 7,
The mode control unit includes:
When receiving a 'home location registration message' to be transmitted when at least one of the terminals mapped to the target device returns to the home-zone while the target device is in the power save mode, To the operation mode before changing the power saving mode to the power saving mode.
10. The method of claim 9,
When the target device is a femtocell base station that goes to a sleep mode when the terminal is out of femtocell coverage, the power saving mode is a deep sleep mode in which the power of the target device in the sleep mode is turned off,
And the operation mode before the power saving mode is the sleep mode.
11. The method of claim 10,
Wherein when the target device is a femtocell base station, the home-zone is a macro cell overlapping at least part of the femtocell coverage of the femtocell base station among macro cells of the mobile communication network.
8. The method of claim 7,
If the mobile communication terminal fails to receive a signal from a macro cell belonging to the home-zone and enters a neighboring state in which a signal is received from a macro cell belonging to the neighboring zone and the mobile communication terminal reaches a predetermined time, Quot; registration message &quot;.&lt; / RTI &gt;

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