JP2011101199A - Wireless communication system, base station apparatus, and wireless terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wireless communication system, along with a base station apparatus and wireless terminal, capable of preventing the loss of data to be backed up in relation to a wireless terminal. <P>SOLUTION: The base station apparatus 10A is configured to generate necessary data about the wireless terminal 20 communicating with the base station apparatus and store the necessary data in a memory, and also transmit the generated necessary data to the wireless terminal 20. The wireless terminal 20 is configured to transmit the necessary data transmitted from the base station apparatus 10A to a base station apparatus 10B when position registration to the base station apparatus 10B is performed, and the base station apparatus 10B is configured to store the necessary data transmitted from the wireless terminal 20 in a memory. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a wireless communication system, a base station apparatus, and a wireless terminal that perform wireless communication.

  As a conventional wireless communication system, a base station apparatus generates notification information related to a service of a call originated from a PHS terminal in the area, a notification information transmission unit that transmits the notification information to a database, There is known a database including file storage means for storing notification information in a file (see, for example, Patent Document 1). The notification information is information that is the basis of billing and traffic data.

  Further, the notification information described above is stored in a volatile memory 8 (for example, SRAM) in the base station apparatus 9 as shown in FIG. 7, and the base station apparatus 9 has an emergency backup power source 7. Thus, destruction of data stored in the volatile memory 8 due to the interruption of the power supply to the base station apparatus 9 is prevented.

JP 2001-285922 A

  However, when there is a drop or failure in the backup power supply, if the power supplied to the base station apparatus is interrupted or momentarily interrupted, or if there is a problem with the volatile memory itself, the data will be destroyed. there is a possibility.

  Therefore, an object of the present invention is to provide a radio communication system, a base station apparatus, and a radio terminal that can prevent the loss of data to be backed up related to the radio terminal.

  The radio communication system of the present invention relates to a radio communication system having a radio terminal, a first base station apparatus, and a second base station apparatus, wherein the first base station apparatus relates to a radio terminal communicating with itself. The necessary data is generated and stored in the memory, and the generated necessary data is transmitted to the wireless terminal. When the wireless terminal performs location registration with respect to the second base station device, the first data The necessary data transmitted from the base station apparatus is transmitted to the second base station apparatus, and the second base station apparatus has a configuration for storing the necessary data transmitted from the wireless terminal in a memory. .

  With this configuration, necessary data is transferred between other base station apparatuses, so that loss of data to be backed up related to the wireless terminal can be prevented in advance.

  The wireless communication system of the present invention further includes a center device that acquires necessary data stored in a memory in the first or second base station device, and the first or second base station device includes a memory It has a configuration for erasing necessary data stored in the.

  With this configuration, the data capacity of the memory of the base station apparatus can be saved.

  The wireless communication system according to the present invention has a configuration in which when the wireless terminal transmits the necessary data to the second base station apparatus, the transmitted necessary data is deleted.

  With this configuration, the data capacity of the memory of the wireless terminal can be saved.

  The base station apparatus of the present invention includes a terminal processing unit that generates necessary data related to a wireless terminal that communicates with itself, a memory that stores necessary data generated by the data generating unit, and a need that is stored in the memory And a wireless communication unit that transmits data to the wireless terminal.

  The wireless terminal of the present invention receives necessary data generated when communicating with the first base station apparatus in a wireless terminal capable of communicating with the first base station apparatus and the second base station apparatus When the location registration for the wireless communication unit, the memory for storing the necessary data, and the location of the second base station device is performed, the necessary data stored in the memory is transmitted to the second base station device. And a control unit for controlling.

  The present invention provides a wireless communication system, a base station apparatus, and a wireless terminal that can prevent loss of data to be backed up related to the wireless terminal.

1 is an overall schematic configuration diagram of a data management system according to an embodiment of the present invention. It is a block diagram of the base station apparatus which concerns on embodiment of this invention. It is a block diagram of the radio | wireless terminal which concerns on embodiment of this invention. It is a figure explaining operation | movement of the radio | wireless communications system which concerns on embodiment of this invention. It is a figure of the structure of the required data transmitted to the radio | wireless terminal from the base station apparatus which concerns on embodiment of this invention. It is a figure of a structure of the required data transmitted to the base station apparatus from the radio | wireless terminal which concerns on embodiment of this invention. It is a block diagram of the conventional base station apparatus.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall schematic configuration diagram of a radio communication system according to an embodiment of the present invention.

  The data management system illustrated in FIG. 1 includes a base station device 10A, a base station device 10B, a base station device 10C, a center device 30, and a radio terminal 20. When the base station apparatus 10 is described separately, the base station apparatus 10A, the base station apparatus 10B, and the base station apparatus 10C are described. In FIG. 1, only three base station apparatuses 10 are shown, but the number is not limited to three. In addition, the wireless communication between the base station apparatus 10 and the wireless terminal 20 may conform to LTE, WiMAX, XGP, PHS, or the like. Base station apparatus 10 and center apparatus 30 are connected by a dedicated line or the like.

(Configuration of base station equipment)
Next, the configuration of the base station apparatus according to the embodiment of the present invention will be described. FIG. 2 is a configuration diagram of the base station apparatus according to the embodiment of the present invention. As illustrated in FIG. 2, the base station device 10 includes a wireless communication unit 11, a memory 13, a control unit 14, and a network interface 15.

  The wireless communication unit 11 includes a baseband signal processing unit such as an RF circuit that processes a radio frequency signal and an antenna, and performs modulation and demodulation, data encoding, decoding, and the like. Transmit and receive radio signals.

  The memory 13 is composed of, for example, an SRAM, and stores necessary data related to the wireless terminal 20 (such as charging information and service information of the wireless terminal 20) and various information used for control in the base station apparatus 10.

  The network interface 15 communicates with the Internet, a dedicated line, or a telephone network. The network interface 15 can communicate with the base station device 10, the center device 30, or a communication terminal.

  The control unit 14 is configured by a CPU, for example, and includes a terminal processing unit 17 and a center processing unit 16. The terminal processing unit 17 and the center processing unit 16 are, for example, program modules executed by the control unit 14. Such a member may be an electronic circuit or the like.

  The terminal processing unit 17 generates necessary data regarding the wireless terminal 20 and stores it in the memory 13, and transmits the generated necessary data to the wireless terminal 20 via the wireless communication unit 11. For example, the terminal processing unit 17 generates necessary data (billing information, service information, etc.) regarding the wireless terminal 20 when performing call processing such as outgoing call or incoming call with the wireless terminal 20.

  Further, the terminal processing unit 17 stores the necessary data in the memory 13 when the necessary data is transmitted from the wireless terminal 20.

  The center processing unit 16 is configured to transmit the stored necessary data to the center device 30 when the center device 30 requests the base station device 10 for the necessary data. In addition, the center processing unit 16 may transmit necessary data to the center device 30 every time a certain time has elapsed or when the memory 13 has reached a certain amount of data. Further, when the necessary data is transmitted to the center device 30, the center processing unit 16 deletes the necessary data stored in the memory 13.

(Configuration of wireless terminal)
Next, the configuration of the wireless terminal according to the embodiment of the present invention will be described. FIG. 3 is a configuration diagram of the radio terminal according to the embodiment of the present invention. As illustrated in FIG. 3, the wireless terminal 20 includes a wireless communication unit 21, a memory 23, and a control unit 24.

  The radio communication unit 21 includes a baseband signal processing unit and an antenna such as an RF circuit that processes radio frequency signals, performs modulation and demodulation, and transmits and receives radio signals to and from the base station apparatus 10. .

  The memory 23 stores necessary data and various types of information used for control in the wireless terminal 20. The control unit 24 is constituted by a CPU, for example, and controls various functions provided in the wireless terminal.

  The control unit 24 stores necessary data transmitted from the base station apparatus 10 in the memory 23. Further, when the location registration of the wireless terminal 20 is performed with respect to the base station device 10, the control unit 24 transmits the stored necessary data to the registered base station device 10.

(Center equipment)
The center device 30 has a database function. The center device 30 requests the base station device 10 for necessary data and acquires it from the base station device 10 at regular intervals. The center apparatus 30 manages the acquired necessary data. Note that the configuration of the center device 30 is omitted.

  FIG. 4 is a diagram for explaining the operation of the radio communication system according to the embodiment of the present invention.

  First, the base station apparatus 10A and the radio terminal 20 are in communication, and the terminal processing unit 17 of the base station apparatus 10A generates the necessary data A related to the radio terminal 20 and stores it in the memory 13 and is generated. The necessary data A is transmitted to the wireless terminal 20 (S1). Note that when new necessary data is generated, the terminal processing unit 17 may transmit the new necessary data to the wireless terminal 20.

  The radio terminal 20 receives the necessary data A transmitted from the base station apparatus 10A, and stores the received necessary data A in the memory 23 (S2).

  Here, a configuration of necessary data transmitted from the base station apparatus 10 to the radio terminal 20 is shown in FIG. FIG. 5 shows billing information, service information, and date / time information as necessary data. Also, a base station NO indicating each base station is added.

  When the radio terminal 20 moves and hands over to the base station apparatus 10B, the terminal processing unit 17 of the base station apparatus 10B generates and stores necessary data B related to the radio terminal 20 in the memory 13 and is generated. The necessary data B is transmitted to the wireless terminal 20 (S3).

  The radio terminal 20 receives the necessary data B transmitted from the base station apparatus 10B, and stores the received necessary data B in the memory 23 (S4). At this time, what is stored in the memory 23 is the necessary data A and the necessary data B.

  When the location registration with respect to the base station apparatus 10B is performed, the wireless terminal 20 transmits the necessary data A stored in the memory 23 to the base station apparatus 10B with the location registration (S5) and deletes the necessary data A. .

  Here, FIG. 6 shows a configuration of necessary data transmitted from the radio terminal 20 to the base station apparatus 10. FIG. 6 shows billing information, service information, and date / time information as necessary data. Further, a base station NO indicating each base station device 10 and a terminal NO indicating each wireless terminal 20 are added. These pieces of information are managed by the center apparatus 30, but the terminal NO and the base station NO are for preventing duplication of information in the center apparatus 30.

  The base station apparatus 10B receives the necessary data A transmitted from the radio terminal 20, and stores the received necessary data A in the memory 13 (S6). Here, when there is a request for necessary data from the center apparatus 30 to the base station apparatus 10B, the center processing unit 16 of the base station apparatus 10B transmits the stored necessary data A and necessary data B to the center apparatus 30. (S7). At this time, the center processing unit 16 deletes the stored necessary data after transmitting the stored necessary data.

  Thereafter, when the radio terminal 20 is handed over to the base station apparatus 10C, the terminal processing unit 17 of the base station apparatus 10C generates necessary data C related to the radio terminal 20 and stores it in the memory 13, and the generated necessity Data C is transmitted to the wireless terminal 20 (S8).

  The radio terminal 20 receives the necessary data C transmitted from the base station device 10C, and stores the received necessary data C in the memory 23 (S9). At this time, what is stored in the memory 23 is the necessary data B and the necessary data C.

  When the location registration with respect to the base station device 10C is performed, the wireless terminal 20 transmits the necessary data B stored in the memory 23 to the base station device 10C with the location registered (S10) and deletes the necessary data B. . The base station device 10C receives the necessary data B transmitted from the radio terminal 20, and stores the received necessary data B in the memory 13 (S11).

  When the memory 23 of the base station apparatus 10B has failed in S5, the radio terminal 20 stores the necessary data A and the necessary data B, and the necessary data A and the necessary data stored in the memory 23 in S10. Data B is transmitted to the base station apparatus 10C that has registered the location.

  Further, the necessary data in the memory 23 of the wireless terminal 20 is encrypted, and the error is detected and the normality is maintained.

  As described above, in the radio communication system according to the embodiment of the present invention, when the location registration for the base station apparatus 10B (base station apparatus 10C) is performed, the radio terminal 20 is connected to the base station apparatus 10A (base station). The necessary data transmitted from the device 10B) is transmitted to the base station device 10B (base station device 10C), and the base station device 10B (base station device 10C) stores the necessary data transmitted from the radio terminal 20 in the memory 23. Therefore, loss of necessary data to be backed up can be prevented in advance. For example, even if the memory 23 of the base station apparatus 10A fails after S1, the necessary data A is transferred to the base station apparatus 10B in S5 and is not lost.

DESCRIPTION OF SYMBOLS 7 Backup power supply 8 Volatile memory 9 Base station apparatus 10 Base station apparatus 11 Wireless communication part 13 Memory 14 Control part 15 Network interface 16 Center processing part 17 Terminal processing part 20 Wireless terminal 21 Wireless communication part 23 Memory 24 Control part 30 Center apparatus

Claims (5)

In a wireless communication system having a wireless terminal, a first base station device, and a second base station device,
The first base station device generates necessary data related to a wireless terminal communicating with itself and stores it in a memory, and transmits the generated necessary data to the wireless terminal,
When the location registration for the second base station device is performed, the wireless terminal transmits necessary data transmitted from the first base station device to the second base station device,
The wireless communication system, wherein the second base station device stores necessary data transmitted from the wireless terminal in a memory. A center device for acquiring necessary data stored in a memory in the first or second base station device;
The wireless communication system according to claim 1, wherein the first or second base station device deletes necessary data stored in a memory.   The wireless communication system according to claim 1, wherein the wireless terminal deletes the transmitted necessary data when transmitting the necessary data to the second base station apparatus. A terminal processing unit for generating necessary data regarding a wireless terminal communicating with itself;
A memory for storing necessary data generated by the data generation unit;
A base station apparatus comprising: a wireless communication unit that transmits necessary data stored in the memory to the wireless terminal. In a wireless terminal capable of communicating with the first base station apparatus and the second base station apparatus,
A wireless communication unit for receiving necessary data generated when communicating with the first base station device;
A memory for storing the necessary data;
And a control unit that controls to transmit necessary data stored in the memory to the second base station device when location registration with respect to the second base station device is performed. Terminal.

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