KR20090006711A - Apparatus and method for handover between macro cell and home cell in mobile communication system - Google Patents

Apparatus and method for handover between macro cell and home cell in mobile communication system Download PDF

Info

Publication number
KR20090006711A
KR20090006711A KR1020070127342A KR20070127342A KR20090006711A KR 20090006711 A KR20090006711 A KR 20090006711A KR 1020070127342 A KR1020070127342 A KR 1020070127342A KR 20070127342 A KR20070127342 A KR 20070127342A KR 20090006711 A KR20090006711 A KR 20090006711A
Authority
KR
South Korea
Prior art keywords
base station
home base
information
terminal
private
Prior art date
Application number
KR1020070127342A
Other languages
Korean (ko)
Inventor
박효순
윤성훈
윤지훈
조기호
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020070069444 priority Critical
Priority to KR20070069444 priority
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Publication of KR20090006711A publication Critical patent/KR20090006711A/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data session or connection
    • H04W36/0033Control or signalling for completing the hand-off for data session or connection with transfer of context information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission and use of information for re-establishing the radio link
    • H04W36/0061Transmission and use of information for re-establishing the radio link of neighbor cell information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/04Reselecting a cell layer in multi-layered cells
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W84/00Network topologies
    • H04W84/02Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/04Large scale networks; Deep hierarchical networks
    • H04W84/042Public Land Mobile systems, e.g. cellular systems
    • H04W84/045Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

A handover apparatus between a macro cell and a home cell in a mobile communication system and a method thereof are provided to enable a user terminal to determine whether a home base station exists around itself in a 3GPP LTE system, and perform gap assisted measurement only when the user terminal enters the coverage of the home base station. A user terminal(330) can move into the coverage of home base stations(310,320) while receiving a call service from a base station(300). For the above step, the user terminal performs gap assisted measurement for the handover from the macro base station to the home base station. When the user terminal enters the coverage of the home base station, to sense the entry fact, the home base station is switched to an FA of the base station to transmit an advertisement signal. When the home base station is driven, it receives the resource allocation information for the advertisement from a base station to which the home base station belongs.

Description

Device and method for handover between macro cell and home cell in mobile communication system {APPARATUS AND METHOD FOR HANDOVER BETWEEN MACRO CELL AND HOME CELL IN MOBILE COMMUNICATION SYSTEM}

The present invention provides a call from the macro base station when a small home base station (HeNB) is installed in a 3GPP LTE (evolved node-B) area of a macro base station (eNB). The present invention relates to an apparatus and a method for supporting handover when a user equipment (UE) receiving a service moves into a home base station area.

In 3GPP LTE system, handover is basically initiated by searching for neighboring base stations when the strength of the signal received by the user terminal falls below a certain level.

However, when the home base station exists in the macro cell area, even if the user terminal moves into the area of the home base station, the user terminal may receive a signal of sufficient strength from the macro base station, and thus the user terminal does not perform the neighbor base station search.

Therefore, the above method does not support handover from the macro cell to the home cell.

A method for solving this problem is to periodically search for a home base station available to the user terminal. However, this periodic operation leads to unnecessary searching. That is, even if the user terminal is not within the home base station area, a separate discovery process must be performed to discover the home base station.

If the search period is increased to reduce this unnecessary search, this increases the handover delay.

Meanwhile, in the 3GPP LTE system, it is generally assumed that different frequency assignments (FAs) are used to avoid interference between the macro cell and the home cell. In this case, a gap support measurement (Gap) is used to search for neighbor base stations. assisted measurement is required. Here, unnecessary and periodic searching as above results in unnecessary gap assist measurement.

Therefore, the gap assist measurement should be used minimally for the following reasons.

First, the user terminal must finish searching for neighboring base stations within a given gap. This is related to the performance of the user terminal. In order to complete the search within a short gap, the performance of the user terminal must be greater than or equal to the standard, indicating that the complexity of the user terminal increases.

However, providing a long gap for a low performance user terminal has a problem that puts a heavy load on the base station scheduler.

If the user terminal wishes to make a gap assist measurement, the user terminal must request it from the base station scheduler to obtain the gap. However, this causes a problem of signaling overhead.

In addition, when the user terminal performs frequent gap support measurement, the base station scheduler needs to continuously prepare an unexpected gap, which causes a problem in scheduling optimization.

An object of the present invention is to provide an apparatus and method for handover from a macro cell to a home cell in a mobile communication system.

Another object of the present invention is to provide an apparatus and method for performing handover by performing minimal gap support measurement for handover from a macro cell to a home cell in a 3GPP LTE system.

Still another object of the present invention is to provide a method and method for handover in a 3GPP LTE system that enables a user terminal to determine whether a home base station exists in its vicinity and to measure handover by measuring gap support only when the user terminal enters a home base station area. In providing.

According to a first aspect for achieving the object of the present invention, in a handover method of a home base station, when the terminal is present in the area of the macro base station to which the home base station belongs, receiving the information that the terminal exists; And transmitting a advertisement signal for the home base station to the terminal and performing a handover procedure with the terminal.

According to the present invention, in a 3GPP LTE system, a home base station transmits an advertisement signal from a FA of a macro base station to which it belongs, and a user terminal performs gap support measurement only by receiving a gap support measurement only when receiving an advertisement signal of a desired home base station. There is an advantage that can be minimized.

In addition, since all home base stations belonging to the same macro cell in the present invention use the same resources for transmitting an advertisement signal, the home base station of the present invention has an advantage that only limited resources are needed.

In addition, since the home base station of the present invention transmits only resources allocated in synchronization with the base station to which it belongs, there is an advantage of not causing interference with the base station.

In addition, the private home base station of the present invention transmits an advertisement signal only when a user terminal of a closed user group enters an area of a macro base station to which the private home base station belongs, and thus, between home base stations that may be generated by transmitting an advertisement signal on the same resource. There is an advantage to reduce the interference.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, an apparatus and method for handover between a macro cell and a home cell in a mobile communication system will be described.

3GPP LTE system is an advanced next generation wireless access system that can provide high-speed data service at low cost regardless of time and place by improving disadvantages of low transmission speed and high cost of data service provided by existing 3GPP mobile communication system.

The 3GPP LTE system is based on Orthogonal Frequency Division Multiple Access (OFDMA) and Multiple-Input Multiple-Output (MIMO) technologies of Fq (Frqquency Divison Duplex).

In addition, the 3GPP LTE system uses high efficiency frequency (5bits / hz), high throughput (100Mbps / 20Mhz), short transmission delay (less than 5ms), scalable RF structure (1.25 ~ 20Mhz bandw ID) It provides a network optimized for data transmission, such as th changeable) and a simple two-tier access network.

The small home base station (HeNB) is a device installed in a user's room or office to provide quality service at a lower price.

1 is a diagram of a resource block for allocating an advertising resource according to the present invention.

Referring to FIG. 1, the resource block represents a minimum unit of resources that can be allocated to a user terminal or a channel in LTE, and is composed of a set of a certain number of subcarriers consecutively in a single slot (time concept). About 40 bits can be transmitted in one resource block. A unit consisting of one subcarrier and one symbol is called a resource element.

One slot is composed of seven OFDM symbols and N subcarriers. If a predetermined number (n) of subcarriers are allocated, the resource block is assigned a product of the predetermined number (n) of subcarriers and seven OFDM symbols.

In order to transmit the advertisement signal of the home base station, resources are allocated in units of resource blocks as described above.

2 is a diagram illustrating an example of allocation of a resource block for transmitting an advertisement signal according to the present invention.

Referring to FIG. 2A, the home base station switches frequency to the FA of the macro for each allocated slot and transmits an advertisement signal using subcarriers corresponding to the corresponding resource block.

In the OFDMA, resource divisions represent subcarriers according to frequency and slots according to time, and always-allocating does not use a particular subcarrier exclusively for every time, but always determines which subcarrier to use at what time. Indicates that it is fixed.

Referring to FIG. 2B, an example of dynamic allocation rather than the above-described allocation is illustrated. When a user terminal accessible to a private home base station enters a macro cell, resources are allocated and when resources are entered, resources are recovered. It is shown.

3 is a diagram illustrating a macro cell and home cell arrangement structure of a GPP LTE system according to the present invention.

Referring to FIG. 3, a layout structure of a home base station considered by the present invention is shown. The public home base station (Public HeNB) 310 and the private home base station (Private HeNB) 320 are macro base station (eNB: 300). It is in the region of and uses another FA (FA2) to minimize interference with the macro base station 300.

The private home base station 320 allows access only to a user terminal (UE) belonging to a closed user group (CUG: Closed User Group), and the public home base station 310 includes all the user terminals 330. Allow user terminal access.

Since home base stations (hereinafter referred to as both the private and public home base stations) 310 and 320 generally provide a cheaper service, the user terminal 330 is basically provided when there are available home base stations 310 and 320. Prefer to receive services through the home base station (310, 320).

The user terminal 330 may move within an area of the home base stations 310 and 320 while receiving a call service from the macro base station 300.

To this end, the user terminal 330 performs a gap support measurement in order to handover from the macro base station 300 to the home base station (310, 320).

According to the present invention, when the user terminal 330 enters the area of the home base station 310, 320, the home base station 310, 320 switches to the FA of the macro base station 300 according to a condition. The main content is to transmit the advertisement signal (Advertisement Signal)

The home base stations 310 and 320 receive resource allocation information for advertisements from the macro base station 300 to which the home base stations 310 and 320 belong. The resource allocation information for the advertisement enables the home base station to determine when using which FA to transmit the advertisement signal.

The resource allocation information for the advertisement is received directly from the macro base station 300 through the X2 interface, from the mobility management entity (MME: Mobility Management Entity) 340 through the S1 interface, or a singer home base station (310, 320) ) May be received from the home base station manager 350 that manages.

4 is a diagram illustrating an FA structure when an advertisement of a home base station is transmitted from an FA of a macro base station according to the present invention.

Referring to FIG. 4, when the user terminal receives the advertisement signal of the home base station, the user terminal knows that the user terminal exists in the area of the home base station, determines whether it is an available home base station, and then performs gap support measurement. do.

The macro base station allocates periodic resources for the transmission of the advertisement signal of the home base station in its area. The amount and the period of the resource are determined by the cell ID length of the home base station and the period of the advertisement signal transmission.

The resource may be reallocated upon re-start of the macro base station or according to load conditions. In addition, the resource is shared by all home base stations existing within the macro base station area.

When the home base station is activated, the home base station receives resource allocation information for an advertisement from the macro base station to which the home base station belongs. The resource allocation information for the advertisement enables the home base station to determine when using which FA to transmit the advertisement signal.

The resource allocation information may be received directly from the macro base station through the X2 interface, received from the mobile manager through the S1 interface, or may be received from the node managing the singer home base station.

The FAs 410 and 420 in which the home base station operates are different from the FAs 430 in which the macro base station operates, but the resources allocated for transmission of the advertisement signal among the FAs 430 in which the macro base station operates when the advertisement signal is transmitted. In operation 440, the frequency band is changed to transmit an advertisement signal. After the advertisement signal is transmitted, the mobile station returns to its own FAs 410 and 420.

FIG. 5 is a message flow diagram illustrating a case in which a user terminal enters an area of a macro base station, a case in which a user terminal opens a connection in a macro base station, or a case in which a user terminal registers in the macro base station.

Referring to FIG. 5, when the user terminal 510 performs a handover to the macro base station 520 or when the user terminal 510 attempts to open a connection from the macro base station 520, Or when the user terminal 510 attempts to register at the macro base station 520 (step a). The macro base station 520 performs the following operation.

The macro base station 520 reports the handover completion to the mobile manager 530 in the handover process, requests the mobile manager 530 to open a connection, or registers the registration with the user terminal 510. Request to the manager 530 (step b)).

The mobility manager 530 obtains the information of the user terminal 510 based on the received information (step c).

Thereafter, the mobile manager 530 transmits at least one of an ID of the user terminal 510 or information about a previous base station where the user terminal stayed or a new base station to be handed over to the home base station manager 540. And transmits to manager 540 (step d).

In this case, the home base station manager 540 transmits information indicating the entry / exit of the user terminal 510 to the home base station 550 (step e). The home base station 550 may be a home base station existing within an area of the macro base station 520.

Thereafter, the home base station 550 starts or stops the advertisement based on the received information (step f). When the user terminal 510 exists within the area of the macro base station 520, the advertisement is started, and when the user terminal 510 leaves the area of the macro base station 520, the advertisement is stopped. The home base station 550 may be a private home base station.

6 is a diagram illustrating an operation process of a home base station for advertisement according to an embodiment of the present invention. The home base station switches to the FA of the macro base station for transmitting the advertisement signal of the macro base station for transmitting the advertisement signal, transmits the advertisement signal, and then returns to the FA of the home base station. And, it is assumed that the macro base station and the home base station are synchronized with each other in time.

The private home base station transmits its cell ID when the advertisement signal is transmitted. In the case of a common home base station, a common cell ID shared with all common home base stations is transmitted. The private home base station and the shared home base station use a predetermined modulation and coding scheme in transmission (e.g., transmission at the lowest rate).

6a) is a flow chart for a private home base station, and FIG. 6b) is a flow chart for a public home base station.

First, referring to FIG. 6A), the private home base station receives resource information on an advertisement from a network at startup (step 605). The resource information for the advertisement enables the private home base station to determine when and which FA to transmit the advertisement signal to.

The resource information may be received directly from the macro base station through the X2 interface, received from the mobile manager (MME) through the S1 interface, or may be received from the home base station manager.

Then, the private home base station is provided with the number of user terminals (hereinafter referred to as CUG user terminals) K which are currently staying in the macro cell transmitted by the home base station manager from the mobile manager and which can be connected to the private home base station (K). Step 610). The mobility manager may also manage the value of K.

If the value of K is not greater than 0 (step 620), that is, if there is no CUG user terminal accessible to the private home base station within the area of the private home base station before the private home base station is activated. Follow the process of.

If the CUG user terminal enters the macro base station area (including the case where the mobile station is notified of this fact) (step 620), the private home base station increases the value of K by one (step 630). In other words, the number of CUG user terminals currently stored within the area of the macro base station is increased by one.

If the private home base station transmits a handover command to the CUG user terminal and the target base station to which the CUG user terminal is to be handed over is a macro base station, the private home base station increases the value of K by one. Step 630.

If the CUG user terminal is out of the macro base station area (including the case of being notified of the fact from the mobile manager) (step 635), the private home base station decreases the value of K by one (step 645). That is, the number of CUG user terminals currently stored within the area of the macro base station is reduced by one.

If the private home base station transmits a handover command to the home base station manager because the CUG terminal performs the handover, and the source base station handed over by the CUG user terminal is the macro base station (640). The private home base station decreases the value of K by one (step 645). Since the CUG user terminal has left the macro base station, the value of K is decreased by one. This is true even when the CUG user terminal hands over to another macro base station.

A series of processes for determining the number of CUG user terminals existing in the region of the macro base station described above is repeated if the value of K is not greater than zero, and the following process is performed if the value of K is greater than zero. Perform (step 650). That is, it repeats until there exists a CUG user terminal currently existing within the area of the macro base station.

Thereafter, it is checked whether the capacity of the private home base station is in excess (step 655). If the capacity of the private home base station is not in excess, the cell ID of the private home base station is included in the advertisement signal and transmitted (step 665). The process of determining the number of CUG user terminals existing in the above-described macro base station area is repeated.

If the capacity of the private home base station is exceeded (step 655) but is not currently transmitting an advertisement signal (step 660), a series of determining the number of CUG user terminals existing in the aforementioned macro base station area is present. Repeat the process.

That is, a series of processes for determining the number of CUG user terminals existing in the aforementioned macro base station area is repeated until the capacity of the private home base station is not exceeded.

If the capacity of the private home base station is exceeded (step 655), and currently transmitting the advertisement signal (step 660), the transmission of the advertisement signal currently being performed is stopped (step 670). Then, the above-described process of determining the number of CUG user terminals existing in the macro base station area is repeated.

That is, when the capacity of the private home base station is exceeded, the transmission of the advertisement signal is stopped and a series of processes for determining the number of CUG user terminals existing in the aforementioned macro base station area is repeated.

If the value of K is greater than zero (step 615), it is checked whether the capacity of the private home base station is in excess (step 655). If the capacity of the private home base station is not in excess, the cell ID of the private home base station is included in the advertisement signal and transmitted (step 665). The above-described process of determining the number of CUG user terminals existing in the macro base station area is repeated.

If the capacity of the private home base station is exceeded (step 655) but is not currently transmitting an advertisement signal (step 660), a series of determining the number of CUG user terminals existing in the aforementioned macro base station area is present. Repeat the process.

That is, a series of processes for determining the number of CUG user terminals existing in the aforementioned macro base station area is repeated until the capacity of the private home base station is not exceeded.

If the capacity of the private home base station is exceeded (step 655), and currently transmitting the advertisement signal (step 660), the transmission of the advertisement signal currently being performed is stopped (step 670). Then, the above-described process of determining the number of CUG user terminals existing in the macro base station area is repeated.

That is, when the capacity of the private home base station is exceeded, the transmission of the advertisement signal is stopped and a series of processes for determining the number of CUG user terminals existing in the aforementioned macro base station area is repeated.

Then, the algorithm according to the present invention is terminated.

Referring to FIG. 6B), the public home base station receives resource information on an advertisement from a network at startup (step 680). The resource information for the advertisement enables the private home base station to determine when and which FA to transmit the advertisement signal to.

The resource information may be received directly from the macro base station through an X2 interface, may be received from an access gateway (aGW) through an S1 interface, or may be received from a home base station manager.

If the state of the public home base station is in the capacity exceeding capacity (step 682), the initial booting is not the case of the current advertisement signal transmission (step 686), the state of the public home base station described above is the capacity check Follow step 625. That is, the public home base station waits until it can transmit an advertisement signal.

If the state of the public home base station is in excess of capacity (step 682) and is currently transmitting an advertisement signal (step 686), the transmission of the advertisement signal is stopped (step 688), and the state of the public home base station described above is Perform a capacity check process (step 625).

If the state of the common home base station is not exceeding capacity (step 682), the advertisement signal is transmitted by including the cell ID of the common home base station in the advertisement signal (step 684). The state performs a capacity check process (step 625). That is, the public home base station continues to transmit the advertising signal, unless the capacity is exceeded.

Then, the algorithm according to the present invention is terminated.

7 is a diagram illustrating an operation process of a user terminal for advertisement-based handover according to an embodiment of the present invention. It is assumed that the user terminal knows in advance the cell ID and the shared cell ID of the private home base station to which the user terminal belongs.

Referring to FIG. 7, the user terminal receives system information including resource information used by the home base station from the macro base station (step 710). The advertisement signal is monitored (step 720).

That is, in order to receive the advertisement signal of the home base station, when the system information including the details of the resource used by the home base station is received, the advertisement signal transmitted by the home base station is monitored according to the resource details.

During the monitoring process, the cell ID included in the advertisement signal is compared with the cell ID in which the user terminal is stored (step 730). The stored cell ID is a cell ID of a home base station that a user wants to use.

In the cell ID comparison process, if the user terminal belongs to the closed user group of the private home base station and is looking for the private home base station, the user terminal compares with the cell ID of the private home base station, and the user terminal searches for the public home base station. If there is, compare it with the public cell ID.

If there is a home base station preferred by the user for the private home base station and the shared home base station, the user terminal compares them with each other.

Thereafter, when the user terminal receives the cell ID of the stored (desired) home base station, the user terminal performs gap support measurement and performs handover according to the handover procedure of 3GPP LTE (step 740).

If the user terminal does not receive the stored (desired) cell ID of the home base station, the user terminal repeats the monitoring (step 720) and the comparison process (step 730) until the cell ID of the desired home base station is received.

Then, the algorithm according to the present invention is terminated.

8 is a flowchart illustrating an operation process of a user terminal during handover to a home base station according to an exemplary embodiment of the present invention.

Referring to FIG. 8, the user terminal checks whether a desired (stored) advertisement signal is received (step 810). The desired advertisement signal means an advertisement signal including a cell ID of a home base station set to handover to the user terminal.

When the user terminal receives the desired advertisement signal, it measures the frequency band of the home base station by using the information included in the advertisement signal, and transmits the result to the macro base station (step 815).

Thereafter, the mobile terminal receives a handover instruction from the macro base station (step 820), changes to a frequency band of the home base station, attempts to access the home base station, performs a handover, and reports a handover to the home base station. (Step 830).

Then, the algorithm according to the present invention is terminated.

9 is a flowchart illustrating an operation process of a home base station when a user terminal hands over to a home base station according to an exemplary embodiment of the present invention.

Referring to FIG. 9, when the home base station receives a handover request from the macro base station (step 910), the home base station analyzes the handover request and transmits a response to the macro base station (step 915). In the process, if the handover request satisfies a handover condition, a response message including handover permission is transmitted. The home base station allows handover if the capacity is not in excess.

Thereafter, a handover completion message is received from the user terminal (step 920), and the handover completion report is reported to the mobility manager (step 925).

Thereafter, a response to the handover completion report is received from the mobility manager (step 930), and the handover completion report is reported to the macro base station (step 935).

Then, the algorithm according to the present invention is terminated.

10 is a diagram illustrating a message flow when a user terminal handovers to a home base station according to an exemplary embodiment of the present invention.

Referring to FIG. 10, when the user terminal 1010 receives a desired (stored) advertisement signal (step a). The gap support measurement is performed for the home base station 1020 (step b), and the result is transmitted to the macro base station 1030 (step c)).

The macro base station 1030 analyzes the measurement result (d), and requests a handover to the home base station 1020 according to the result (that is, when the measurement signal level is greater than or equal to a threshold value) (e). step).

When the home base station 1020 receives the handover request from the macro base station 1030 (step e), it analyzes the handover request and transmits a response to the macro base station 1030 (f). ).

When the handover request satisfies the handover condition in the process, the home base station 1020 transmits a response message including a handover permission and the home base station 1020 does not exceed the capacity. Allow handover.

Thereafter, the macro base station 1030 instructs the user terminal 1010 to handover (g) step).

The user terminal 1010 performs a handover process to the home base station 1020 (step h), and reports it to the home base station 1020 (step i)).

Thereafter, the home base station 1020 reports the completion of handover to the user terminal 1010 to the mobile manager 1040 (step j) and receives a response from the mobile manager 1010 (k). ),

Thereafter, the home base station 1020 reports the handover completion to the macro base station 1030 (l).

Thereafter, the macro base station 1030 recovers resources for the user terminal 1010 (m).

11 is a block diagram of a user terminal according to an exemplary embodiment of the present invention.

Referring to FIG. 11, the user terminal includes a wireless interface module 1110, a controller 1120, an advertisement information management unit 1140, and a storage unit 1130.

The air interface module 1110 is a module for communicating with other nodes, and includes a radio frequency (RF) processor and a baseband processor.

The RF processor converts a signal received through an antenna into a baseband signal and provides the baseband signal to the baseband processor, and converts the baseband signal from the baseband processor into an RF signal so as to be transmitted on an actual air. Transmit via antenna

The controller 1120 controls the overall operation of the user terminal. For example, it performs processing and control for voice call and data communication, and controls the advertisement information manager 1140 in accordance with the present invention in addition to the usual functions.

The advertisement information manager 1140 receives an advertisement signal in a frequency band of a home base station by using the air interface module 1110 under the control of the controller 520, and a cell desired by the user terminal in the received advertisement signal. If the ID is matched, a process for handover to the home base station is performed. When the mobile station is out of the area of the home base station, it is notified to the mobile manager so that the home base station can stop transmitting the advertisement signal.

The storage unit 530 stores a program for controlling the overall operation of the user terminal and temporary data generated during program execution. In particular, according to the present invention, the user terminal stores a desired cell ID.

In the block configuration described above, the controller 1120 may perform a function of the advertisement information manager 1140. In the present invention, it is shown to configure them separately to explain each function separately.

Therefore, when the product is actually implemented, all of the functions of the advertisement information management unit 1140 may be configured to be processed by the controller 1120, and only some of the functions may be configured to be processed by the controller 1120.

12 is a block diagram of a home base station according to an embodiment of the present invention.

Referring to FIG. 12, the home base station includes a wireless interface module 1210, a wired interface module 1240, a controller 1220, an advertisement information manager 1260, a user information manager 1250, and a storage 1230. It is composed.

The radio interface module 1210 is a module for communicating with other radio nodes and includes an RF processor, a baseband processor, and the like.

The RF processor converts a signal received through an antenna into a baseband signal and provides the baseband signal to the baseband processor, and converts the baseband signal from the baseband processor into an RF signal so as to be transmitted on an actual air. Transmit via antenna

The wired interface module 1240 is a module for communicating with other wired nodes, and includes a wired processor and a baseband processor. The wired processor converts a signal received through a wired path into a baseband signal and provides the baseband signal to the baseband processor. Send via the path.

The controller 1220 controls the overall operation of the home base station. For example, it performs processing and control for voice call and data communication, and controls the user information manager 1250 and the advertisement information manager 1260 in accordance with the present invention in addition to the usual functions.

The advertisement information management unit 1260 receives resource information so that the home base station can transmit an advertisement signal from a macro base station, a mobile manager, or a node managing the home base station at startup, and the home base station is a private home base station. The number of user terminals that can access the private home base station existing in the area of the macro base station is provided.

When receiving information indicating that a user terminal capable of accessing the private home base station exists in the area of the macro base station from the macro base station, the macro base station using the resource information provided through the air interface module 1210. Transmits advertising signals in the frequency bands.

When the home base station is a shared home base station, the shared home base station always transmits an advertisement signal in the frequency band of the macro base station using the resource information provided through the air interface module 1210.

When the handover request is received from the macro base station, when the home base station is not in the capacity excess state by analyzing the handover request, a handover process is performed.

In addition, when receiving information indicating that the used terminal accessible to the private home base station from the macro base station or the mobile manager is out of the area of the macro base station, the advertisement signal transmission is stopped.

The user information manager 1250 manages a closed user group that can access the home base station. When a user terminal not registered in the closed user group attempts to access, the private home base station does not respond.

Then, the user terminal corresponding to the closed user group is added and deleted.

The user information manager 1250 provides a function for enabling the closed user group management independently of the operator.

To this end, a user having administrative rights to the closed user group directly connects to the private home base station by wireless or wired to directly change and manage the closed user group.

In addition, the user information manager 1250 provides a function of enabling management by changing the closed user group through a home base station manager of an operator.

To this end, if a user having administrative rights to the closed user group requests a change of the closed user group through an operator, and the operator accesses the home base station manager accordingly and changes the closed user group of the private home base station, The home base station manager reflects this and changes the closed user group of the private home base station.

The storage unit 1230 functions to store a program for controlling the overall operation of the apparatus and temporary data generated during program execution.

In the above-described block configuration, the controller 1220 may perform the functions of the advertisement information manager 1240 and the user information manager 1250. In the present invention, it is shown to configure them separately to explain each function separately.

Accordingly, when the product is actually implemented, the controller 1220 may process all of the functions of the advertisement information manager 1240 and the user information manager 1250, and only a part of the functions may be processed by the controller 1220. It can also be configured to handle.

On the other hand, after the user terminal enters the area of the macro base station, considering the case of leaving the area of the macro base station without handover to the area of the home base station as follows.

When the user terminal enters a corresponding macro cell, that is, an area of a macro base station to which the home base station belongs, the home base station starts advertising signal transmission. However, when the user terminal does not hand over to the area of the home base station and leaves the area of the macro base station, the home base station stops transmitting the advertisement signal.

At this time, the user terminal is informed that it is out of the area of the macro base station, and the home base station receives from the user terminal that the user terminal is out of the area of the macro base station. The home base station may receive the fact through another node.

FIG. 13 is a block diagram of a movement manager in accordance with an embodiment of the present invention. Referring to FIG.

Referring to FIG. 13, the mobility manager includes a wired interface module 1310, a controller 1320, a storage 1330, and an advertisement information manager 1340.

The wired interface module 1310 is a module for communicating with other wired nodes, and includes a wired processor and a baseband processor. The wired processor converts a signal received through a wired path into a baseband signal and provides the baseband signal to the baseband processor. Send via the path.

The controller 1320 controls the overall operation of the movement manager. For example, it performs processing and control for voice call and data communication, and controls the advertisement information management unit 1340 according to the present invention in addition to the usual functions.

The advertisement information management unit 1340 provides the number of user terminals accessible to the private home base station existing in the macro base station when the private home base station existing in the area of the macro base station is activated.

In addition, when the advertisement information manager 1340 receives the information that the user terminal exists within the area of the macro base station, the advertisement information manager 1340 requests the home base station manager for information on the private home base station to which the user terminal can access, and the private home. Receive information about the base station in response and transmit it to the private home base station.

In addition, the advertisement information manager 1340 provides resource information used by the private home base station and the shared home base station when transmitting an advertisement signal.

When the user terminal receives information indicating that the user terminal is out of the area of the macro base station, the advertisement information manager 1340 transmits the information to the private home base station.

The advertisement information manager 1340 receives the information indicating that the user terminal has completed the handover from the private home base station or the public home base station and provides a response.

The storage unit 1330 stores a program for controlling the overall operation of the apparatus and temporary data generated during program execution.

In the block configuration described above, the controller 1320 may perform a function of the advertisement information manager 1340. In the present invention, it is shown to configure them separately to explain each function separately.

Accordingly, when the product is actually implemented, all of the functions of the advertisement information management unit 1340 may be configured to be processed by the controller 1320, and only some of the functions may be configured to be processed by the controller 1320. .

14 is a flowchart illustrating an operation process of a mobility manager according to an exemplary embodiment of the present invention.

Referring to FIG. 14, the mobile manager receives a handover complete message from a macro or private or public home base station (step 1405), receives a connection open request message (step 1410), or registers a message. In step 1420, the mobile station transmits the mobile information related to the messages to the home base station manager (step 1420).

The movement information of the terminal may be information of the terminal, information of the old base station and the new base station.

15 is a flowchart illustrating an operation process of a home base station manager according to an exemplary embodiment of the present invention.

Referring to FIG. 15, the home base station manager manages the number K of CUG terminals existing in the macro cell to which the home base station belongs to each home base station.

When the home base station requests configuration information for a power reset or the like (step 1503), the home base station manager transmits the number K of the corresponding CUG terminals to the home base station together with the initial configuration information (step 1505).

When the home base station manager receives the movement information of the CUG user terminal from the mobility manager (MME) (step 1502), the home base station manager performs a process of updating the number K of the CUG terminals based on this.

When the private home base stations in the macro cell where the current CUG user terminal is located are H (step 1506), when the previous base station of the CUG user terminal is a macro base station and the base station where the current CUG user terminal is located is a macro base station ( In operation 1506, the home base stations of the previous macro base station are informed that the CUG user terminal leaves the macro cell (step 1509). The CUG user terminal is notified to the home base stations of the macro base station (step 1510).

When the home base stations of the CUG user terminal in the previous macro cell are referred to as H '(step 1511), the K value managed by the home base station belonging to H is increased by 1 and the K value managed by the home base station belonging to H' is decreased by 1. (Step 1512).

If the previous base station of the CUG user terminal is a macro base station and the base station where the current CUG user terminal is located is a home base station (step 1507), the CUG user is sent to the home base stations of the macro base station where the CUG user terminal has stayed. In this case, the mobile station notifies the home base station where the current CUG user terminal is located.

Thereafter, the K value managed by the home base station belonging to H is decreased by one (step 1514).

If the previous base station of the CUG user terminal is a home base station and the base station where the current CUG user terminal is located is a macro base station (step 1508), the CUG is transmitted to home base stations belonging to the macro base station where the CUG user terminal is currently located. Notify that the user terminal enters (step 1515), in this case, the home base station where the current CUG user terminal is located is excluded from the notification target.

Thereafter, the value of K managed by the home base station belonging to H is increased by one (step 1516).

An example of managing the number of CUG terminals existing in the macro base station in the private home base station is as follows. The home base station may be a private home base station.

16 illustrates an example of managing the number of CUG terminals existing in a macro base station in a private home base station according to an embodiment of the present invention.

Referring to FIG. 16A, when a CUG terminal completes a handover to the private home base station, the private home base station 1610 transmits a handover complete message to the home base station manager 1620 (step a). . In this case, the value of k is decreased by 1, and if the value of k is 0, the advertisement transmission is stopped (step b).

Referring to FIG. 16B, when the CUG terminal 1610 needs handover to the macro base station, the private home base station 1620 transmits a handover command message to the CUG terminal 1610 (step a). ). In this case, the value of k is increased by 1, and if the value of k is greater than 0, the advertisement transmission is started (step b).

Referring to FIG. 16C, when the private home base station 1620 opens a connection with the CUG terminal 1610 (step a), the value of k is decreased by 1, and the private home base station 1620 is the CUG terminal 1610. If you close the connection with step a, the value of k is increased by one. If the value of k is greater than 0, the advertisement transmission is started, otherwise, the advertisement transmission is stopped (step b).

17 illustrates an example of managing the number of CUG terminals present in a macro base station according to an embodiment of the present invention.

Referring to FIG. 17, in step a), the CUG user terminal 1710 performs a handover to the macro base station 1720, and the macro base station 1720 indicates that the handover is completed. (1), the mobile manager 1750 informs the home base station manager 1760 of information about the CUG user terminal 1710, the old base station, and the new base station (2). The base station manager 1760 uses this information to notify the private home base stations 1730 and 1740 that the CUG user terminal 1710 has entered the macro base station 1720 (3).

The private home base stations 1730 and 1740 increase the K value by 1 based on this information.

In step b), the CUG user terminal 1710 performs a handover from the macro base station 1720 to the private home base station 1730, and the private home base station 1730 indicates that the handover is completed. If the MME 1750 is reported (4), the mobile manager 1750 transmits information about the CUG user terminal 1710, the macro base station 1720, and the private home base station 1730 to a home base station manager ( 1760, the home base station manager 1760 uses this information to inform the private home base station 1740 that the CUG user terminal 1710 has entered the private home base station 1730. (6).

Thereafter, the private home base station 1740 decreases the K value by 1 based on this information. Here, the private home base station 1730 knows that the CUG user terminal 1710 has moved to its own area, so that the KUG can be managed without any other notification.

In step c), the CUG user terminal 1710 performs a handover from the private home base station 1730 to the private home base station 1740, and the private home base station 1730 is the CUG user terminal. Instructing handover (1710) (7) and when the CUG user terminal 1710 completes the handover, the private home base station 1740 reports this to the MME 1750. 8, the mobile manager 1750 notifies information about the CUG user terminal 1710 and the private home base stations 1730 and 1740 to the home base station manager 1760 (9). In this case, since the private home base station 1730 moves to another home base station 1740, since there is no change in the K value.

In step d), the CUG user terminal 1710 indicates a process of performing a handover from the private home base station 1740 to the macro base station 1720. Command (1010) and when the CUG user terminal 1710 completes the handover, the macro base station 1720 reports this to the MME 1750 (11). In this case, the mobile manager 1750 informs the home base station manager 1760 of information about the CUG user terminal 1710, the macro base station 1720, and the private home base station 1740 (9). . In this case, the private home base stations 1730 and 1740 increase the value of K by one.

Since the private home base station 1740 knows that the CUG user terminal 1710 has moved to the macro base station 1720, the private home base station 1740 may manage the K value without any other notification.

In step e), the CUG user terminal 1710 performs a handover from the macro base station 1720 to another macro base station. The mobile manager 1750 performs the CUG user terminal 1710 and the previous macro base station. In operation 1720, information about the new macro base station is notified to the home base station manager 1760 (14), and the home base station manager 1760 uses the information to inform the CUG user of the private home base station 1730 and 1740. The terminal 1710 notifies that the terminal has entered the area of the other macro base station (15). In this case, the home base stations 1730 and 1740 decrease the K value by 1 based on this information.

18 is a block diagram illustrating a home base station manager according to an embodiment of the present invention.

Referring to FIG. 18, the home base station manager includes a wired interface module 1810, a controller 1820, a storage 1830, and a user terminal manager 1840.

The wired interface module 1810 is a module for communicating with other wired nodes, and includes a wired processor and a baseband processor. The wired processor converts a signal received through a wired path into a baseband signal and provides the baseband signal to the baseband processor. Send via the path.

The controller 1820 controls the overall operation of the home base station manager. For example, it performs processing and control for voice call and data communication, and controls the user terminal manager 1840 according to the present invention in addition to the usual functions.

When the user terminal manager 1840 receives a request for configuration information of a home base station, the user terminal manager 1840 transmits the number of user terminals belonging to a closed user group (CUG) together with initial configuration information, and closes from the mobility manager. When the mobile information of the terminal belonging to the user group is received, the number of the closed user terminals belonging to the home base station is updated using the mobile information.

In addition, the user terminal manager 1840 notifies the home base station belonging to the previous macro base station that the corresponding user terminal is advanced if the previous base station of the corresponding user terminal is a macro base station and the current base station is another macro base station. And notifying the home base station belonging to the current macro base station that the corresponding closed user terminal enters, updating the number of the old macro base station and the closed user terminals located in the current macro base station, thereby closing the closed user belonging to the home base station. Update the number of terminals.

In addition, when the previous base station of the corresponding user terminal is a macro base station and the current base station is a home base station, the user terminal manager 1840 provides the corresponding closed user to a home base station belonging to a previous macro base station except for the current home base station. It informs that the terminal is advancing, updates the number of closed user terminals located in the previous macro base station, and updates the number of closed user terminals belonging to the home base station.

In addition, when the previous base station of the user terminal is a home base station and the current base station is a macro base station, the user terminal management unit 1840 provides the corresponding closed user to a home base station belonging to the current macro base station except for the previous home base station. The terminal notifies that the terminal enters, and updates the number of closed user terminals located in the current macro base station to update the number of closed user terminals belonging to the home base station.

Here, the movement information includes at least one of information of the closed user terminal, information of the old base station, information of the new base station.

The storage unit 1830 functions to store a program for controlling the overall operation of the apparatus and temporary data generated during program execution.

In the above block configuration, the controller 1820 may perform a function of the user terminal manager 1840. In the present invention, it is shown to configure them separately to explain each function separately.

Therefore, when the product is actually implemented, all of the functions of the user terminal manager 1840 may be configured to be processed by the controller 1820, and only some of the functions may be configured to be processed by the controller 1820. .

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined not only by the scope of the following claims, but also by the equivalents of the claims.

1 is a diagram of a resource block for allocating an advertising resource according to the present invention;

2 is a diagram illustrating an example of allocation of a resource block for transmitting an advertisement signal according to the present invention;

3 is a diagram illustrating a macro cell and home cell arrangement structure of a GPP LTE system according to the present invention;

4 is a diagram illustrating a FA structure when an advertisement of a home base station is transmitted from a FA of a macro base station according to the present invention;

5 is a message flow diagram illustrating a case in which a user terminal enters an area of a macro base station, a case in which a user terminal opens a connection in a macro base station, or a case in which a user terminal registers in the macro base station;

6 is a view illustrating an operation process of a home base station for advertisement according to an embodiment of the present invention;

7 is a flowchart illustrating an operation process of a user terminal for advertisement-based handover according to an embodiment of the present invention;

8 is a flowchart illustrating an operation process of a user terminal upon handover to a home base station according to an embodiment of the present invention;

9 is a flowchart illustrating an operation process of a home base station when a user terminal hands over to a home base station according to an embodiment of the present invention;

10 is a diagram illustrating a message flow when a user terminal performs a handover to a home base station according to an embodiment of the present invention;

11 is a block diagram of a user terminal according to an embodiment of the present invention;

12 is a block diagram of a home base station according to an embodiment of the present invention;

13 is a block diagram of a movement manager according to an embodiment of the present invention.

14 is a flowchart illustrating an operation process of a mobility manager according to an embodiment of the present invention;

15 is a flowchart illustrating an operation process of a home base station manager according to an embodiment of the present invention;

16 illustrates an example of managing the number of CUG terminals existing in a macro base station in a private home base station according to an embodiment of the present invention;

17 is a diagram illustrating an example of managing the number of CUG terminals present in a macro base station according to an embodiment of the present invention. And,

18 is a block diagram illustrating a home base station manager according to an embodiment of the present invention.

Claims (54)

  1. In the handover method of the home base station,
    When the terminal exists in the area of the macro base station to which the home base station belongs, receiving information indicating that the terminal exists;
    Transmitting an advertisement signal for the home base station to the terminal;
    And performing a handover procedure with the terminal.
  2. The method of claim 1,
    And when the home base station is a public home base station, the advertisement signal is an advertisement signal for the public home base station.
  3. The method of claim 1,
    And when the home base station is a private home base station, transmits an advertisement signal for the private home base station as the advertisement signal only when a user terminal belonging to a closed group exists in an area of the macro base station.
  4. The method of claim 1,
    Before the transfer process,
    And stopping the transmission of the advertisement signal when the home base station exceeds the capacity.
  5. The method of claim 1,
    The transmitting process is characterized in that the home base station is performed in the frequency domain of the macro base station using the resource information allocated from the upper node.
  6. In the handover method of the user terminal,
    Checking, by the user terminal, whether information of a desired home base station matches information of a home base station included in an advertisement signal;
    And if the information of the desired home base station and the information of the home base station included in the advertisement signal coincide with each other, handing over to the desired home base station.
  7. The method of claim 6,
    The handover process,
    When the desired home base station is both a private home base station and a public home base station, and the information of the private home base station and the public home base station and the information included in the advertisement signal all match, handover to a high priority home base station is performed. Characterized in that the method.
  8. In the home base station apparatus,
    A communication interface module for communicating with another node,
    When the terminal exists within the area of the macro base station to which the home base station belongs through the communication interface module, the terminal receives information that the terminal exists and transmits an advertisement signal for the home base station to the terminal, and handover procedure with the terminal. A control unit for performing a handover to the home base station by performing the following steps;
    And a user information manager configured to manage a user accessing the home base station.
  9. The method of claim 8,
    And when the home base station is a public home base station, the advertisement signal is an advertisement signal for the shared home base station.
  10. The method of claim 8,
    The control unit transmits an advertisement signal for the private home base station as the advertisement signal only when a user terminal belonging to a closed group exists in the area of the macro base station when the home base station is a private home base station. Device.
  11. The method of claim 8,
    The control unit stops transmitting the advertisement signal when the home base station exceeds the capacity.
  12. The method of claim 8,
    And the control unit transmits the advertisement signal in the frequency domain of the macro base station using resource information allocated from an upper node.
  13. The method of claim 8,
    And the user information management unit adds and deletes user terminals belonging to a closed group at the request of a user when the home base station is a private home base station.
  14. In the device of the terminal,
    A communication interface module for communicating with another node,
    The advertisement signal is received through the communication interface module, the terminal checks whether the information of the desired home base station and the information of the home base station included in the advertisement signal coincide with each other, and includes the information of the desired home base station and the advertisement signal. And a controller for handing over to the home base station when the information of the home base station matches each other.
  15. The method of claim 14,
    If the desired home base station is both a private home base station and a public home base station, and the information of the private home base station and the private public home base station and the information included in the advertisement signal match each other, the control unit is a high priority home base station; Handover.
  16. In the information providing method of the mobile manager,
    Providing information on resources used by the private and public home base stations to transmit advertisement signals to the private and public home base stations;
    Requesting information about the private home base station from a macro base station to a higher node when receiving a request for information about the private home base station to which a terminal can access;
    Receiving information on the private home base station from the higher node and transmitting the received information to the private home base station.
  17. The method of claim 16,
    And when the private home base station is booted, transmitting the number of terminals that can access the private home base station existing in the macro base station to which the private home base station belongs to the private home base station. Way.
  18. In the device of the movement manager,
    A communication interface module for communicating with another node,
    Through the communication interface module, the private and public home base station provides information of resources used when transmitting an advertisement signal to the private and public home base station, and receives a request for information from the macro base station for the private home base station to which the terminal can access. And requesting information on the private home base station from a higher node, and receiving the information on the private home base station from the higher node and transmitting the information to the private home base station.
  19. The method of claim 18,
    The advertising information management unit
    And when the private home base station is booted, transmitting the number of terminals capable of accessing the private home base station existing in the macro base station to which the private home base station belongs to the private home base station.
  20. In a communication system for handover using an advertising signal,
    When the terminal exists in the area of the macro base station to which the home base station belongs, the terminal receives information that the terminal exists, transmits an advertisement signal for the home base station to the terminal, and performs a handover procedure with the terminal. A home base station for handing over to the home base station;
    And the terminal handing over to the matching home base station when the information of the home base station desired by the terminal and the information of the home base station included in the advertisement signal coincide with each other.
  21. The method of claim 20,
    And when the home base station is a public home base station, the advertisement signal is an advertisement signal for the public home base station.
  22. The method of claim 20,
    The home base station transmits an advertisement signal for the private home base station as the advertisement signal only when a user terminal belonging to a closed group exists in the area of the macro base station when the private base station is a private home base station.
  23. The method of claim 20,
    The home base station stops transmitting the advertisement signal when the capacity exceeds.
  24. The method of claim 20,
    The home base station transmits the advertisement signal in the frequency domain of the macro base station using resource information allocated from an upper node.
  25. The method of claim 20,
    The home base station, in the case of a private home base station, at the request of the user characterized in that the addition and deletion of the user terminal belonging to the closed group.
  26. The method of claim 20,
    When the desired home base station is both a private home base station and a public home base station, and the information of the private home base station and the private public home base station and the information included in the advertisement signal all match, the terminal is a high priority home base station. Handover system characterized in that
  27. The method of claim 20,
    And the terminal transmits the area advance information when the home base station is a private home base station and advances into the area of the private home base station.
  28. The method of claim 20,
    The system,
    The mobile base station further comprises a mobile manager for providing the home base station with resource information used when transmitting the advertisement signal.
  29. The method of claim 28,
    The movement manager,
    When the home base station is a private home base station and the private home base station is booted, transmitting the number of terminals that can access the private home base station existing in the macro base station to which the private home base station belongs to the private home base station. System characterized in that.
  30. The method of claim 28,
    The movement manager,
    When the home base station is a private home base station, a request for information about a private home base station to which the terminal can access is received from a macro base station, and the information about the private home base station is requested to an upper node, and the private node is the private node. Receiving information about the home base station and transmitting to the private home base station.
  31. The method of claim 1,
    And stopping the transmission of the advertisement signal when the terminal receives the information indicating that the terminal is out of the area of the macro base station.
  32. The method of claim 8,
    And the controller stops transmitting the advertisement signal when the terminal receives the information indicating that the terminal is out of the area of the macro base station.
  33. The method of claim 20,
    The home base station stops transmitting the advertisement signal when the terminal receives the information that the terminal is out of the area of the macro base station.
  34. The method of claim 16,
    When the handover completion is reported from the private home base station or the public home base station, transmitting movement information of the terminal to a home base station manager;
    When the connection open request for the terminal is received from the private home base station or the public home base station, transmitting the mobile information of the terminal to the home base station manager;
    And when the registration request for the terminal is received from the private home base station or the public home base station, transmitting movement information of the terminal to the home base station manager.
  35. The method of claim 34,
    The movement information of the terminal comprises at least one of information of the terminal, information of the old base station, information of the new base station.
  36. In the management method of the home base station manager,
    When receiving a request for configuration information from the home base station, transmitting the number of user terminals belonging to a closed user group (CUG) together with initial configuration information;
    And receiving the mobile information of the terminal belonging to the closed user group from the mobility manager, updating the number of the closed user terminals belonging to the home base station by using the mobile information.
  37. The method of claim 36,
    The mobile information includes at least one of information of a closed user terminal, information of a previous base station, and information of a new base station.
  38. The method of claim 36,
    The process of updating the number of closed user terminals belonging to a home base station using the movement information,
    If the previous base station of the end user terminal is a macro base station and the current base station is another macro base station, a process of notifying the home base station belonging to the previous macro base station that the end user terminal is advancing;
    Notifying a home base station belonging to a current macro base station that the corresponding closed user terminal enters;
    Updating the number of user terminals located in the previous macro base station and the current macro base station.
  39. The method of claim 36,
    The process of updating the number of closed user terminals belonging to a home base station using the movement information,
    When the previous base station of the end user terminal is a macro base station and the current base station is a home base station, informing the home base station belonging to the previous macro base station except the current home base station that the corresponding end user terminal is advancing;
    Updating the number of closed user terminals located in the previous macro base station.
  40. The method of claim 36,
    The process of updating the number of closed user terminals belonging to a home base station using the movement information,
    When the previous base station of the closed user terminal is a home base station and the current base station is a macro base station, informing the home base station belonging to the current macro base station except the previous home base station that the corresponding closed user terminal enters;
    And updating the number of closed user terminals located in the current macro base station.
  41. In the apparatus of the home base station manager,
    An interface module for communicating with other nodes,
    When receiving a request for setting information of the home base station, the number of user terminals belonging to the closed user group (CUG) is transmitted together with the initial setting information, and the mobility information of the terminal belonging to the closed user group is transmitted from the mobility manager. And a user terminal manager to update the number of closed user terminals belonging to a home base station using the movement information.
  42. 42. The method of claim 41 wherein
    The mobile information includes at least one of information of a closed user terminal, information of a previous base station, and information of a new base station.
  43. 42. The method of claim 41 wherein
    The user terminal manager,
    If the previous base station of the end user terminal is a macro base station and the current base station is another macro base station, the home base station belonging to the previous macro base station is notified that the end user terminal enters, and to the home base station belonging to the current macro base station Notifying that the corresponding end user terminal enters, updating the number of the end user terminals located in the previous macro base station and the current macro base station, and updating the number of the end user terminals belonging to the home base station. Device.
  44. 42. The method of claim 41 wherein
    The user terminal manager,
    If the previous base station of the user terminal is a macro base station and the current base station is a home base station, the home base station belonging to the previous macro base station except for the current home base station to inform that the user terminal is advancing, the previous And updating the number of closed user terminals located in the macro base station, thereby updating the number of closed user terminals belonging to the home base station.
  45. 42. The method of claim 41 wherein
    The user terminal manager,
    If the previous base station of the closed user terminal is a home base station and the current base station is a macro base station, notifying the home base station belonging to the current macro base station, except for the previous home base station, the entry of the closed user terminal, the current And updating the number of closed user terminals belonging to the home base station by updating the number of closed user terminals located in the macro base station of the mobile station.
  46. The method of claim 18,
    The advertising information management unit,
    When receiving the handover completion report from the private home base station or the public home base station, and transmits the mobile information of the terminal to the home base station manager,
    When receiving the connection open request for the terminal from the private home base station or the public home base station, and transmits the mobile information of the terminal to the home base station manager,
    And when the registration request for the terminal is received from the private home base station or the public home base station, transmitting movement information of the terminal to the home base station manager.
  47. The method of claim 46,
    The mobile information of the terminal comprises at least one of information of the terminal, information of the old base station, information of the new base station.
  48. The method of claim 28,
    The movement manager,
    When receiving the handover completion report from the private home base station or the public home base station, and transmits the mobile information of the terminal to the home base station manager,
    When receiving the connection open request for the terminal from the private home base station or the public home base station, and transmits the mobile information of the terminal to the home base station manager,
    And when the registration request for the terminal is received from the private home base station or the public home base station, transmitting movement information of the terminal to the home base station manager.
  49. The method of claim 48,
    The movement information of the terminal comprises at least one of information of the terminal, information of the old base station, information of the new base station.
  50. The method of claim 28,
    When receiving the request for configuration information of the home base station, the number of user terminals belonging to the closed user group (CUG) is transmitted together with the initial configuration information, and the mobility information of the terminal belonging to the closed user group is transmitted from the mobility manager. And receiving a home base station manager for updating the number of closed user terminals belonging to a home base station using the movement information.
  51. 51. The method of claim 50,
    The mobile information includes at least one of information of a closed user terminal, information of a previous base station, and information of a new base station.
  52. 51. The method of claim 50,
    The home base station manager,
    If the previous base station of the end user terminal is a macro base station and the current base station is another macro base station, the home base station belonging to the previous macro base station is notified that the end user terminal enters, and to the home base station belonging to the current macro base station Notifying that the corresponding end user terminal enters, updating the number of the end user terminals located in the previous macro base station and the current macro base station, and updating the number of the end user terminals belonging to the home base station. system.
  53. 51. The method of claim 50,
    The home base station manager,
    If the previous base station of the user terminal is a macro base station and the current base station is a home base station, the home base station belonging to the previous macro base station except for the current home base station to inform that the user terminal is advancing, the previous And updating the number of closed user terminals located in the macro base station, thereby updating the number of closed user terminals belonging to the home base station.
  54. 51. The method of claim 50,
    The home base station manager,
    If the previous base station of the user terminal is a home base station and the current base station is a macro base station, the home base station belonging to the current macro base station except for the previous home base station to inform that the user terminal enters, the current base station And updating the number of closed user terminals belonging to the home base station by updating the number of closed user terminals located in the macro base station.
KR1020070127342A 2007-07-11 2007-12-10 Apparatus and method for handover between macro cell and home cell in mobile communication system KR20090006711A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020070069444 2007-07-11
KR20070069444 2007-07-11

Publications (1)

Publication Number Publication Date
KR20090006711A true KR20090006711A (en) 2009-01-15

Family

ID=40487880

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070127342A KR20090006711A (en) 2007-07-11 2007-12-10 Apparatus and method for handover between macro cell and home cell in mobile communication system

Country Status (1)

Country Link
KR (1) KR20090006711A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010131914A2 (en) * 2009-05-13 2010-11-18 Samsung Electronics Co., Ltd. Apparatus and method for handover in wireless communication system
KR101011614B1 (en) * 2009-05-29 2011-01-27 아주대학교산학협력단 Method for scanning femtocell base-station and femtocell communication system by using that method
US8787914B2 (en) 2010-12-23 2014-07-22 Electronics And Telecommunications Research Institute Method of operating closed-mode base station and non-subscriber terminal
CN104080171A (en) * 2013-03-25 2014-10-01 中国移动通信集团公司 Communication method for terminal and home evolved node B (HeNB), evolved node B (eNB) and terminal
US8929879B2 (en) 2009-12-15 2015-01-06 Electronics And Telecommunications Research Institute Method and apparatus for controlling operation mode of femtocell base station

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010131914A2 (en) * 2009-05-13 2010-11-18 Samsung Electronics Co., Ltd. Apparatus and method for handover in wireless communication system
KR101521892B1 (en) * 2009-05-13 2015-05-20 삼성전자주식회사 Apparatus and method for handover in wireless communication system
WO2010131914A3 (en) * 2009-05-13 2011-03-03 Samsung Electronics Co., Ltd. Apparatus and method for handover in wireless communication system
US8289928B2 (en) 2009-05-13 2012-10-16 Samsung Electronics Co., Ltd. Apparatus and method for handover in wireless communication system
KR101011614B1 (en) * 2009-05-29 2011-01-27 아주대학교산학협력단 Method for scanning femtocell base-station and femtocell communication system by using that method
US8929879B2 (en) 2009-12-15 2015-01-06 Electronics And Telecommunications Research Institute Method and apparatus for controlling operation mode of femtocell base station
US8787914B2 (en) 2010-12-23 2014-07-22 Electronics And Telecommunications Research Institute Method of operating closed-mode base station and non-subscriber terminal
CN104080171A (en) * 2013-03-25 2014-10-01 中国移动通信集团公司 Communication method for terminal and home evolved node B (HeNB), evolved node B (eNB) and terminal
CN104080171B (en) * 2013-03-25 2017-09-08 中国移动通信集团公司 Communication means, base station and the terminal of a kind of terminal and Home eNodeB

Similar Documents

Publication Publication Date Title
US10244486B2 (en) Method for operating femtocell in wireless communication system
JP6250736B2 (en) A supported self-optimizing wireless network that is optimized for energy, mobility and capacity
JP2019149836A (en) Communication device and method executed by the same
US9572078B2 (en) Method for accessing base station, base station, and user equipment
EP2962485B1 (en) Wireless local area network (wlan) traffic offloading
US9674776B2 (en) Communications methods and apparatus that facilitate discovery of small coverage area base stations
US8738002B2 (en) Zone switching in mixed-zone air interface
JP6543355B2 (en) System and method for connectivity management
JP2018137820A (en) Radio base station, user terminal, and processor
CN102316588B (en) User equipment, base station, method for data communication, and method for frequency allocation
US8918096B2 (en) Method and apparatus providing multi-level proximity indication and small cell discovery
EP2417732B1 (en) Apparatus and method for detecting femto base station in wireless communication system
JP6144343B2 (en) Method, apparatus, and computer-readable medium for traffic redistribution in a wireless network
US8954079B2 (en) Mobile communication system and base station identifier management method thereof
US8588139B2 (en) MAC/PHY identification of base station types and their preferred and restricted access
US9167613B2 (en) Method and apparatus for supporting connectivity of peer-to-peer (P2P) communication in mobile communication system
JP5259773B2 (en) Radio resource management in femtocells
DK2564613T3 (en) Bærebølgeallokering in wireless
JP5140312B2 (en) Connection control method in mobile communication, mobile communication management device, and mobile station device
JP5341099B2 (en) Wireless signal preamble design
TWI389583B (en) Preamble design for a wireless signal
CN103222326B (en) Use the apparatus and method of the cognitive predictability resource selection of scheduler behavior in a communications system
KR100703517B1 (en) System and method for allocating a safety channel in a broadband wireless access communication system
US20140120926A1 (en) Method of operating base station and terminal in cellular telecommunication system for operating multiple beams
US8811334B2 (en) Methods for idle registration and idle handoff in a femto environment

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination