KR100268047B1 - Mobile station regist method in mobile wireless telecommunication system - Google Patents

Abstract

PURPOSE: A method for processing the registration of a mobile station in a mobile wireless system, is provided to use information on an existing mobile station to promptly search a prior registered base station, and to simultaneously perform and update a mobile registration process, without additionally updating an FCL(Frequently Called List) in call generation. CONSTITUTION: If mobile registration is requested in a wireless packet processor, a corresponding mobile station is registered in a local station. A registration confirming signal is delivered to a wireless communication processor(112). If the mobile station is for a good subscriber, a registration unavailable signal is transmitted to the wireless communication processor(112). If the mobile station is for a bad subscriber, a mobile station search timer is attached, to transmit a mobile station search request to a wired communication processor(110), and an FS(Flood Search) response is waited. According to FCL(Frequently Called List) information received through the FS, information on a base station servicing a corresponding subscriber is received. Direct communication with a prior registered base station is performed based on the received information, to receive information on a mobile subscriber terminal and perform a registration service.

Description

Mobile station registration process in mobile radio system {MOBILE STATION REGIST METHOD IN MOBILE WIRELESS TELECOMMUNICATION SYSTEM}

The present invention relates to a mobile wireless system, and more particularly, to a method for processing a registration procedure that can improve a mobile registration procedure for a mobile subscriber station.

Typically, the structure of a synchronous distributed network including a mobile radio system is shown as a block diagram of FIG. In FIG. 6, symbols 2 and 4 are main exchangers connected between wired node N1 and wired node N2, and one main switch 2 is connected to a packet communication unit 10 having a plurality of wired subscribers RSC1 to n. The radio access unit 100 corresponding to the wireless base station is connected to the packet communication unit 10. The radio access unit 100 performs bidirectional wireless communication with the mobile subscriber station (MST) 150. In this case, although the frequencies of the transmission and reception signals of the radio access unit 100 and another radio access unit 110 are different from each other, the system clocks should be synchronized with each other in the nature of synchronous communication to use one clock. Accordingly, a receiver for receiving GPS information is typically installed in each of the radio access units 100 and 110 in order to obtain accurate time information and perform synchronous communication.

In the mobile wireless system shown in FIG. 6, the radio base station named the radio access unit 100 performs a subscription registration procedure through a wired network when a subscription registration request is made for a call from a mobile subscriber station (MST) 150, which can be moved from time to time. shall. The performance of such a procedure is a prerequisite for providing call services to mobile subscribers or for authenticating subscribers. When the mobile subscriber station cannot move to an existing location or receive call service from an existing wireless base station, the control unit in the mobile subscriber station uses a response registration request of a wireless base station in charge of service for the current location. Will automatically try. At this time, the wireless base station that has received the registration request performs wired communication with another wireless base station in order to know the information when the information of the mobile subscriber station currently requesting the subscription is not inside. That is, the wireless base station performs wired communication with another wireless base station providing a service immediately before the mobile subscriber station is moved through main exchanges, and service information and other call processing for the mobile subscriber station previously registered there. Receive information necessary for operation The mobile subscription procedure is performed by performing wired communication so as to receive registration information of the mobile subscriber station from another wireless base station. When the mobile subscription procedure is successfully completed, the mobile subscriber can perform the call call. In response to the subscription registration request, while the wireless base station performs the mobile subscription procedure, the response channel of the wireless base station is tied to a busy state, so that another subscriber cannot use the response channel already in use. Therefore, the service efficiency of the mobile wireless communication system is lowered.

In order to clarify the cause of the degradation of the service efficiency as described above, the conventional mobile subscription procedure will be described in more detail as follows. The wireless base station receiving a subscription registration request from the mobile subscriber station transmits specific search data such as a flood search (FS) packet signal to the entire wired network. Here, the signal FS is a message that announces the search for another wireless base station having registration information for the mobile subscriber station in order to know which wireless base station the information of the mobile subscriber station is pre-registered.

When the signal FS is transmitted to all the wireless base stations connected to the wired network, only one wireless base station having information on the terminal sends a specific response message to the wireless base station that has transmitted the FS. In this case, the specific response message may be, for example, a Return Message Subscriber Here (RMS) signal. At this time, until the RMSH is received for a predetermined time, the wireless base station that has transmitted the FS message has set a timer therein and is transitioned to the standby state. When the RMSH signal is received as a response signal for a certain time, based on the address of the corresponding wireless base station included in the message, the wireless base station on the sending side communicates with the base station to which the response is made in an end-to-end manner. To receive the information of the mobile subscriber station. If no response is received for a certain time, the information on the mobile subscriber station is newly registered in the wireless base station on the transmitting side by timer out. Therefore, while the base station performs the subscription procedure for the mobile subscriber station, the current subscriber station is required to wait for a predetermined time, and it is unable to service call requests and subscription requests for other mobile subscriber stations. This is because the response channel of the wireless base station is in a busy state. Moreover, when no response is received, the response channel is not released until then due to the maximum time setting of the timer, for example, setting from 5 seconds to 10 seconds. Thus, other subscribers cannot use the response channel already in use. Therefore, the service efficiency of the mobile wireless communication system is reduced overall.

On the other hand, when a call of the mobile station (CALL) occurs, there is information stored in the node (Node) of the main exchange that connects each base station, which is called an FCL (Frequently Called List). The frequent call list is for proper service operation by using the probability that a call is generated by a subscriber who has been connected once rather than any subscriber due to the characteristics of the call. The frequent call list stores an address of a base station that has previously performed a mobile station service. have. The information is operated separately from mobile registration. Therefore, it can be seen that the FCL update and the mobile registration procedure used in the call setup in the wireless system are performed separately and thus are double tasks. As a result, the time required for the mobile registration procedure is long, and resumption of service for the subscriber who intends to register mobile is slow. Therefore, the release time of the response channel (wireless channel) of the system is long, so the efficiency of using the response channel for all subscribers is reduced.

As described above, there is a problem in that the time required for the mobile subscription procedure is long, so that the resumption time of the subscriber service is slow and the usage efficiency for the response channel is reduced.

Accordingly, an object of the present invention is to provide a method for processing a subscription procedure of a wireless base station for speeding up a mobile subscription procedure for a mobile subscriber station in order to solve the above problems.

Another object of the present invention is to provide a method of reducing the time required for a mobile subscription procedure to speed up the resumption of subscriber service and to increase the use efficiency of a response channel.

Still another object of the present invention is to provide a method for processing a mobile subscription procedure for improving service efficiency of a mobile wireless communication system.

It is still another object of the present invention to provide a method for shortening call service time by updating a frequent call list (FCL) simultaneously with performing a mobile registration procedure without additionally updating a call.

1 is a block diagram of a mobile radio system according to the present invention;

2 to 5 are process control flowcharts of a mobile subscription procedure according to an embodiment of the present invention.

6 is a detailed block diagram of a radio access unit which is a wireless base station of FIG.

The method according to the present invention for achieving the above objects, by performing a mobile registration procedure to send a message for the call of the same type as the FS for call setting to the network node to service the current subscriber according to the FCL information from the network node After receiving the information of the base station, on the basis of the received information is characterized in that the direct registration with the base station registered to receive the information of the mobile subscription terminal to move to perform the subscription registration service.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, specific details are set forth by way of example and in detail in order to provide a more thorough understanding of the present invention. However, for those skilled in the art, the present invention may be practiced only by the above description without these details. In addition, the general functions and operations of the functional blocks so well known in the art are not described in detail in order not to obscure the subject matter of the present invention.

1 is a block diagram of a mobile radio system according to the present invention. FIG. 1 shows only a partial configuration corresponding to one of the radio access units 100 and 110 in FIG. 6, which has a ROM 104, a RAM 102, and a central processing unit (CPU) 100. In addition, the mobile station manager 106, the call processor 108, the wired communication processor 110 responsible for transmitting and receiving messages between the node and the base station, and the wireless station responsible for transmitting and receiving packets between the mobile station and the base station are determined. And a communication processing unit 112. The wireless communication processing unit 112 wirelessly receives a subscription request of the mobile subscriber station under the control of the central processing unit 100 and applies it to the mobile station management unit 106 and wirelessly transmits the subscription processing result provided from the mobile station management unit 106 to the mobile subscriber station which is the mobile station. Send. The mobile station manager 106 is a block for determining registration information management and registration permission for a mobile subscriber station, and performs registration according to an embodiment of the present invention under the control of the central processing unit 100 to quickly register subscription for a subscriber station. Do this. That is, when the mobile station manager 106 receives the registration request of the mobile station through the wireless communication processor 112, the mobile station manager 106 first checks whether the registration information of the mobile station is in its own station. As a result of the check, if the mobile station does not have domestic information, the mobile station determines whether the mobile station can be registered, and then applies a message determined to the wired communication processor 110 to communicate with another base station having the registered information. In response to the message, the base station having registration information on the mobile station which has made the current request among the base stations in the network generates a specific response signal. The wired communication processor 110 is responsible for transmitting and receiving messages for performing wired communication with other base stations connected through a node. That is, the wired communication processing unit 110 transmits a base station acknowledgment message having corresponding mobile station information to the network according to a request of the mobile station management unit 106, and transmits the message to the mobile station management unit 106 when a message indicating that it is a previous registered base station is received from another base station. . The mobile station manager 106 analyzes the message passed from the wired communication processor 110 and transmits a message for requesting mobile station information to the corresponding base station to the corresponding base station. Upon receipt of the response to the mobile station information request, it forwards it to the mobile station manager 106. After the registration procedure for the mobile station is completed, the wireless communication processing unit 112 converts the registration confirmation information into a wireless packet and transmits the registration confirmation information to the mobile station that has attempted to register.

2 to 5 are flowcharts as an example for the mobile subscription procedure processing according to the present invention. Here, the flow sequencer for each of the steps shown in the above figures is programmed with a program language such as C-language, for example, and written to the ROM 104 of FIG. The ROM 104, that is, the read-only memory has a function of a nonvolatile memory, so that the written program data remains even when the power is turned off.

FIG. 2 is a flowchart of mobile registration using FCL according to an embodiment of the present invention, in which a wireless packet processing unit checks whether a mobile registration request or a wired communication processing unit has a mobile station search or a wireless packet processing request. When the mobile packet processing unit requests the mobile registration in the first step, the mobile station checks whether the mobile station is subscribed in its own country, and if it is subscribed, transmits a registration confirmation signal to the wireless communication processing unit. In the second step, the non-subscriber transmits a non-registration signal to the wireless communication processing unit in the second step, attaches a mobile station search timer to the wired communication processing unit and waits for an FS response when the bad subscriber is attached. Step 3 and the wired communication processor moves in the first step In the fourth step, the mobile station information is transmitted to the wired communication processor if the mobile station information exists in the home country, and if the mobile station information is requested by the wireless packet processing unit in the first step, the mobile station information is checked. The fifth step is to transmit a signal for no information to the wired communication processor and transmit the mobile station information to the wired communication processor if the mobile station information is in the local station and delete the mobile station information from the mobile management unit in the local station.

3 is a flowchart illustrating a detailed process of waiting for the FS-response of FIG. 2, which transmits the RMSH to a wired communication processing unit and fetches the RMSH into a weight timer, and addresses and transmits a base station previously registered in the RMSH to deliver a mobile station. Attaching a request timer and waiting for an AFF-REQ response; and determining that there is no previously registered base station when the FS timer is out, registering mobile station information, and transmitting a registration completion signal to a wireless communication processor.

FIG. 4 is a flowchart illustrating a detailed process of waiting for an AFF request response in FIG. 3, wherein a first step of waiting for an AFF request response and checking whether the mobile station information is answered in the wired communication processor or the corresponding subscriber is absent or timers out in the wired communication processor is performed. A second step of requesting mobile station information in response to the first step, detecting a timer, registering mobile station information in the home country, and transmitting a mobile registration completion signal to the wireless communication processing unit; A third step of transmitting an FCL error and a new mobile station search request to the wired communication processing unit and attaching the mobile station search weight timer when it is confirmed as none, and registering the mobile station information when the timer is out in the first step and registering a registration confirmation signal. The fourth step of transmitting to the wireless communication processing unit.

5 is a flowchart illustrating a process control of a wired communication processing unit according to an embodiment of the present invention, the method comprising: transmitting an RMSH to a network-linked device or checking whether a mobile wireless processing unit or a call processing unit requires an FS or other message; Checking whether the message processing unit is the call processing unit against the RMSH received in the step, and if it is correct, transmitting the RMSH to the call processing unit, and if it does not match, transmitting to the mobile station management unit, and when the mobile radio processing unit or the call processing unit requests the FS in the step, Sending to the network interworking equipment, and the step of transmitting to the other interlocking equipment or the designated equipment side when the other message transmission request in the step.

Hereinafter, an embodiment of the operation will be described in detail with reference to the above-described drawings. First, in FIG. 1, the ROM 104 is configured with a conventional ROM having a capacity of about 256K bytes, and the RAM 102 has a capacity of about 128K bytes. Branches can be configured with RAM. In addition, the CPU 100 may be a central processing unit having a data bus of 8 bits or more. For example, the Intel "186" series may be used. The case in which FIG. 1 is implemented using the above components and the flowcharts of FIGS. 2 to 5 are programmed to implement the management and processing units 106, 110, and 112 in FIG. 1 will be described as an example.

Before describing the operation of the present invention, the operation of the FCL utilized in the network service will be described first. When a call attempt is made to another mobile station of a registered mobile station in a network configuration state, the base station transmits a message to locate the destination mobile station to the network in order to find the location of the destination mobile station. Each base station receiving the message sends a message to the base station of the calling party, indicating that the mobile station is subscribed to within the home station, and the base station without the mobile station information ignores this message. In this way, when the current service location of the mobile station is confirmed, the intermediate node connecting the base station, the base station ID serving the mobile station and the corresponding address, etc., are reduced in order to reduce the load of sending the mobile station acknowledgment message to the entire network every time a call occurs. Record the information on the list. Therefore, when another subscriber calls the same mobile station, the node generates a message informing the location of the base station before sending the FS (Flood Search) to the entire network and sends it to the base station. This allows for fast mobile station search and load reduction on manganese lines and systems. If the target base station is selected by using the information sent from the node and the call establishment request is requested, the receiving base station proceeds with the call setup procedure if the destination mobile station is subscribed in its own country, and if the destination mobile station is not subscribed in the country, The mobile station notifies the originating base station of an error message indicating that it is not in its own station. The base station receiving the message transmits a message indicating that the mobile station information is wrong to the node, and requests the mobile station to find the mobile station again in the entire network. When the actual mobile station location is identified throughout the network, the node updates the information about the mobile station.

As described above, the present invention allows the FCL information to be quickly performed by using the FCL information of a previously registered base station during mobile registration using the FCL existing for the call service. Suppose a mobile subscriber station, i.e., a mobile station, has moved from the service area of one base station to another during roaming in an idle state. The mobile station then attempts to register by moving the location to the base station of the area newly entered within the service radius. This corresponds to step (21) of FIG. In addition, when the mobile station no longer serves the mobile station due to the special situation of the existing base station, each mobile station makes a mobile registration request to the base station that can receive a new service. This situation also corresponds to step (21) above. Accordingly, the base station which has received the mobile registration request first checks whether the mobile station has registration information of the mobile station, and then transmits a registration confirmation signal to the wireless communication processing unit if the mobile station in the domestic station is not subscribed in step 22. On the other hand, if there is information of the mobile station in the home station in step (22), it is checked whether the registration of the mobile station is appropriate (23). Transmit to the wireless communication processor, if there is a bad subscriber in step (23), attach the mobile station search (FS) timer in step (24), or transmit the mobile station search request to the wired communication processor in step (26). In step 300, the FS response is awaited. That is, the mobile station is searched by the wired communication processing unit, but the format of the FS message sent to the wired communication processing unit is the same as that sent by the call management unit, and a Gabarge area is provided to the FS message in the Gabarge area. Information for checking whether the transmitted portion is a call management unit or a mobile station management unit is entered (26). When the mobile station search (FS) is sent from the wired communication processor, the mobile station search (FS) transmits the RMSH to the wired communication processor if it is checked whether there is corresponding mobile station information in the local station. In step 28, the radio packet processing unit requests the mobile station information to be delivered, and in step 29, it is checked whether the mobile station information is in the local station. If the mobile station information is present in step (29), the mobile station information is transmitted and transmitted to the wired communication processing unit in step 30. In step 31, the mobile station information is deleted from the domestic mobile management unit. However, if it has mobile station information in its own station in step 29, it transmits the corresponding mobile station no information signal to the wired communication processing unit in step 32.

3 is a subroutine of waiting for the FS response. In step 41, the wired communication processor transmits the RMSH to fetch the RMSH weight timer in step 42. In step 43, the base station address previously registered in the RMSH is patched, and in step 44, the mobile station transfer request (AFF-REQ) timer is attached to wait for a response according to the AFF request (400). When waiting for the FS response and timeout, step 45 determines that there is no previously registered base station in step 46 and registers the mobile station information. When registration is completed in step 48, the registration confirmation signal is transmitted to the wireless communication processor. do.

Referring to FIG. 4, the detailed control process of step 400 of FIG. 3 appears. For the AFF request response, when the calling mobile station management unit receives the information transmission message for the mobile station (31) and (32), the mobile station information is requested in step 31 and the timer is detached to register the domestic mobile station information in step 33. In step 34, the mobile registration confirmation signal is requested to the wireless communication processing unit to transmit a registration confirmation packet to the mobile station. The wireless communication processing unit wirelessly transmits the registration confirmation packet so that the mobile station transmits the registration confirmation packet, which completes the mobile registration procedure. However, if a message indicating that there is no corresponding mobile station information to the mobile station management station comes from a previous registered base station (which was not actually a previously registered base station) (37), it informs the node that the mobile station information is wrong based on this information, and then forwards the network. (Flood Search) requests a pure FS message requesting to find a new mobile station through the wired communication processing unit 110 (38), and in step 39, the mobile station search weight timer is attached. When the AFF request response wait time is the timer out, the mobile station information is registered in step 312 and the registration completion signal is transmitted to the wireless communication processor 112 in step 313.

Next, the operation of the wired communication processor will be described in detail with reference to FIG. 5. In step (52), the RMSH is transmitted to the network-interlocked equipment to check whether the corresponding message processor is the call processor. When the call processor in step 52 transmits the RMSH to the call processor in step 54, it transmits the RMSH to the mobile station manager when the call processor does not. In step 55, the mobile radio processing unit or the call processing unit requests the FS, and in step 56, the FS is transmitted to the network interworking equipment. In step 57, other message transmission is requested, and in step 58, any interworking equipment or designated equipment is transmitted.

By the above-described method, subscription registration for the mobile subscriber station is performed in real time by performing a subscription procedure. In the above, an example method according to the present invention has been shown in accordance with the above description and drawings, but this is merely an example and various changes and modifications are possible, of course.

According to the present invention as described above, the network subscriber management for call processing and the network subscriber management part for mobile registration, which were used in the existing mobile wireless system, were operated separately to update information. The present invention has the advantage of increasing the efficiency by using the existing management portion of the call processing portion. In addition, by using the information on the existing mobile station to find the previous registration base station more quickly, there is an effect that the mobile station can perform a quick registration procedure to speed up the call service. In addition, the release of the response channel of the limited base station and the mobile station is more rapid, so that the effect of improving the efficiency of the response channel and the FCL information of the network are not corrected when a call is generated, but rather can be corrected quickly during the mobile registration procedure. It works.

Claims (6)

In the method of registration of a mobile station of a mobile radio system, A first step of confirming whether there is a mobile registration request by the wireless packet processing unit; A second step of confirming whether the mobile station is subscribed in the country when the mobile registration request is made, and if the mobile station is subscribed, transmitting a registration confirmation signal to the wireless communication processing unit; A third step of transmitting a non-registering signal to the wireless communication processing unit when the subscriber is not a bad subscriber in the second step, attaching a mobile station search timer and transmitting a mobile station search request to the wired communication processing unit when waiting for a FS response; Receive the information of the base station currently serving the subscriber according to the FCL information received according to the FS, and then receives the information of the mobile subscriber station to communicate by directly communicating with the previously registered base station based on the received information And a fourth step of performing a subscription registration service. In the method of registration of a mobile station of a mobile radio system, A first step of checking whether there is a mobile registration request in the wireless packet processing unit or a mobile station search in the wired communication processing unit or a mobile station information transmission request in the wireless packet processing unit; In the first step, when the mobile packet processing unit requests the mobile registration, the mobile station checks whether the mobile station is subscribed in its own country, and if so, transmits a registration confirmation signal to the wireless communication processing unit. Step two, A third step of transmitting a non-registering signal to the wireless communication processing unit when the subscriber is not a bad subscriber in the second step, attaching a mobile station search timer and transmitting a mobile station search request to the wired communication processing unit when waiting for a FS response; A fourth step of transmitting the RMSH to the wired communication processor if the wired communication processor detects whether there is mobile station information at the mobile station search date and time in the first step; In the first step, the wireless packet processing unit requests the mobile station information transmission to check whether the mobile station information is in its own station, and if there is no mobile station information, transmits a signal to the wired communication processing unit if the mobile station information is not present. And a fifth step of transmitting to the communication processing unit and deleting the corresponding mobile station information from the domestic mobile management unit. 3. The method of claim 2, further comprising retrieving previously registered base station information using the FCL when the mobile request is made, and transmitting a response message to the mobile station management unit when a response message is received for the mobile station's search message generated during the call setup. A method for processing registration procedure of a mobile station in a mobile wireless system, characterized in that. The method of claim 3, In the mobile radio system, when the mobile registration fails due to the information error of the FCL, the mobile station management unit further notifies the node that the mobile station information is wrong, and newly searches for the mobile station to perform FCL modification and mobile station registration. How to handle registration process. In a base station apparatus having a ROM, a RAM, a call processing unit, and a central processing unit: A wireless communication processing unit wirelessly receiving a subscription request of a mobile subscriber station under the control of the central processing unit and applying it to a mobile wireless subscriber processing unit and wirelessly transmitting a subscription processing result provided from the mobile wireless subscriber processing unit to the mobile subscriber station; ; Determine the registration information management and registration permission for the mobile subscriber station, and under the control of the central processing unit to send a message for the call of the same type as the call setup FS to the network node to the current according to the FCL information from the network node After receiving the information of the base station that serves the subscriber, based on the received information directly communicates with the previously registered base station to receive the information of the mobile subscriber station to move to perform the actual registration procedure to perform the subscription registration A mobile station management unit; And a wired communication processor configured to perform transmission and reception of messages by performing wired communication with other base stations connected through a node. In the subscription registration processing method for a subscriber station of a mobile wireless communication system, Determining whether the mobile station requesting registration is a bad subscriber when performing the mobile registration procedure; Attaching the mobile station search timer and sending the mobile station search request to the wired communication processing unit a call message of the same type as the call setup FS to the network node if the mobile station requesting the registration is a bad subscriber; Performing a subscription registration service by receiving information of a mobile subscription terminal to be moved by directly communicating with a previously registered base station by information of a base station currently serving a corresponding subscriber according to the FCL information received from the network node. A method for processing registration procedure of a mobile station in a mobile radio system, characterized in that.

Images