JP4735838B2 - Small base station apparatus, base station registration management system, registration method, registration management method, and registration program - Google Patents

Small base station apparatus, base station registration management system, registration method, registration management method, and registration program Download PDF

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JP4735838B2
JP4735838B2 JP2006086631A JP2006086631A JP4735838B2 JP 4735838 B2 JP4735838 B2 JP 4735838B2 JP 2006086631 A JP2006086631 A JP 2006086631A JP 2006086631 A JP2006086631 A JP 2006086631A JP 4735838 B2 JP4735838 B2 JP 4735838B2
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base station
spreading code
position information
code
small base
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JP2007266785A (en
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充高 吉田
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日本電気株式会社
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  The present invention relates to a small base station that can be carried by a base station for home use and consumer use, and particularly relates to a small base station device, a base station registration management system, a registration method, a registration management method, and a registration program.

  Base station equipment that relays calls between mobile terminals and exchanges that are currently in use must be installed, and the location information must be set manually. I must.

  By the way, even if the base station device is installed everywhere in the field, there is a limit to the area that can be covered by the base station device. For example, it may be difficult to connect a mobile terminal in a specific room of a house. Therefore, a base station device setting system for a small home base station device that can be installed by a user and is easy to use in a place where a mobile terminal is difficult to connect has been proposed (for example, see Patent Document 1).

JP 2005-328152 A

  However, in the base station apparatus setting system described in Patent Document 1, a spread code string that does not affect surrounding base stations is received in response to a setting request message received from the base station apparatus by the radio base station information registration apparatus. Since the determined spread code string is supplied to the small base station apparatus, there is a disadvantage that the small base station apparatus installed cannot autonomously assign the spread code.

  The present invention provides a small-sized home base station apparatus, a base station registration management system, a registration method, a registration management method, and a location information registration program that can improve the above-described disadvantages and can autonomously assign spreading codes. The purpose is to do.

  In order to achieve the above object, a small base station apparatus according to the present invention is portable for home use and consumer use, and controls a small base station main unit connected to a network and the operation of the base station main unit. And a main control unit. The base station main body described above is connected to the network, and position information acquisition means for acquiring position information of the base station main body from a GPS satellite and storing it in a storage unit pre-installed in the base station main body. Position information transmitting means for transmitting identification information and position information of the base station main body to a spread code management device for managing spreading codes of neighboring base stations, and the spreading corresponding to the position information of the base station main body A spreading code receiving means for receiving a spreading code used by a neighboring base station sent from a code management device, and a spreading code not used by the neighboring base station based on the received spreading code. And a spreading code allocating means for transmitting to the spreading code managing apparatus together with identification information for allocating the information to the unit and registering the same (claim 1).

In this way, the spreading code not used by the neighboring base station based on the spreading code of the neighboring base station sent from the spreading code management device by the spreading code allocating means on the small base station side described above can be The station itself can be assigned autonomously, which simplifies the process of identifying and registering the spreading code, thereby enabling easy and effective communication with surrounding base stations.
Here, the network to which the small base station main body described above is connected may be an IP (Internet Protocol) network.

The base station registration management system according to the present invention is a spread code management apparatus that is connected to a small base station that can be carried for home use and consumer use via an IP (Internet Protocol) network and manages the operation of the base station. It has.
The spreading code management apparatus described above receives the identification number and position information of the base station sent from the small base station, and spread codes of one or more neighboring base stations corresponding to the position information Searching and retrieving the registration database and transmitting to the base station a spreading code search transmission function, and when a spreading code not used by the neighboring base station is sent from the small base station, the spreading code is A spreading code non-interference judging function for judging whether or not interference with the spreading code used by the neighboring base station is determined, and judging that the spreading code from this small base station does not interfere with the spreading code of the neighboring base station And a spreading code registration management function for registering and managing the information when it is done (claim 3).

  As a result, the spreading code management device can quickly and reliably register and manage the assigned spreading code sent from the small base station, and effectively and reliably avoid interference with neighboring base stations. can do.

  Furthermore, the base station registration method according to the present invention includes an ultra-compact base station main unit that can be carried for home and consumer use and connected to a network, and a main control unit that controls the operation of the base station main unit. The position information of the small base station in the small base station provided with a base station is obtained by registering the position information of the base station main body from a GPS satellite. Location information acquisition step for storing in a storage unit pre-installed in the main unit, and identification information and position information of the base station main unit for a spreading code management device connected to the network and managing the spreading code of each base station A location information transmitting step for transmitting the base station, and an extension for receiving a spreading code used by a neighboring base station transmitted from the spreading code management device corresponding to the location information of the base station main body. Based on the received code, a spreading code that is not used by the neighboring base station is assigned to the base station main body and transmitted to the spreading code management apparatus together with identification information for registration. And a spreading code assigning step (claim 4).

  As a result, the small base station itself allows spreading codes not used by the neighboring base stations based on the spreading codes of the neighboring base stations provided from the spreading code management device by the spreading code assignment step on the small base station side described above. Can be assigned autonomously.

In addition, the base station registration management method according to the present invention is connected to a small base station that can be carried for households and consumers via an IP (Internet Protocol) network, and spread codes of peripheral base stations including the small base station. And the location information of the small base station is transmitted to the spread code management device and registered, and the identification number of the base station sent from the small base station and A spread code search and transmission step of searching for and retrieving a registration database preliminarily equipped with a spread code of one or more neighboring base stations corresponding to the position information and receiving the position information; and transmitting to the small base station; When a spreading code not used by the neighboring base station is sent from the small base station, the spreading code and the interference reference used by the neighboring base station Spreading code non-interference judging step for judging whether or not, and spreading code registration management for registering and managing the spreading code from the small base station when it is judged that it does not interfere with the spreading code of the neighboring base station A process. (Claim 5).
Even in this case, the spread code transmitted from the small base station is easily and reliably registered and managed by the code management device.

In addition, the base station registration management method according to the present invention is connected to a small base station that can be carried for households and consumers via an IP (Internet Protocol) network, and spread codes of peripheral base stations including the small base station. And a method for registering and managing the position information of the small base station in the spread code management apparatus, wherein the small base station obtains the position information of the small base station from a GPS satellite. A position information acquisition step of storing in a storage unit equipped in advance, a position information transmission step in which the small base station transmits identification information and position information relating to the small base station to the spread code management device, and the spreading The code management device receives the identification number and position information of the base station sent from the small base station, and one or more surroundings corresponding to the position information Removed by searching the pre-equipped with registration database the spreading code Chikyoku and a spreading code search transmission step of transmitting to the small base station.

Furthermore, the base station registration management method is the small base station, and the spreading code which is not used by the neighboring base station based on the spreading code of the neighboring base station sent from the spreading code managing device is self-registered. A spreading code allocating step for allocating for a small base station and transmitting the identification code together with identification information to the spreading code management device, and a spreading code in the spreading code management device that is not used by the neighboring base station A spread code non-interference determining step for determining whether or not the spread code interferes with a spread code used by the neighboring base station when it is sent from a station, and in this spread code management device, A spread code registration management step for registering and managing a spread code from the small base station when it is determined that the spread code from the neighboring base station does not interfere with the spread code. Claim 6).
In this way, the spread code from the small base station is easily and reliably registered and managed in the spread code management device.

Further, the location information registration program according to the present invention is for registering location information of a small base station that can be carried for home use and consumer use to a spread code management device connected from the small base station via a network. As a program for transmission processing,
A position information acquisition processing function for acquiring the position information of the small base station from a GPS satellite and storing it in the storage unit of the small base station, the spread code of each base station connected to the network A position information transmission processing function for transmitting the identification information and position information of the small base station to the spreading code management apparatus for managing the information, and the spread code management apparatus corresponding to the position information from the small base station. A spreading code reception processing function for receiving and processing a spreading code used by a neighboring base station, and a spreading code not used by the neighboring base station based on the received spreading code for its own small base station And having the computer execute a spreading code specifying function for transmitting to the spreading code management apparatus together with the identification information for registration. To (claim 7).
Even in this case, based on the spreading code of the neighboring base station sent from the spreading code management device, the spreading code not used by the neighboring base station can be autonomously and quickly assigned by the small base station itself. .

  As described above, according to the present invention, it is possible to autonomously assign and register a spreading code of a small base station that can be carried by a base station for home use or consumer use. It is possible to provide a small base station apparatus, a base station registration management system, a registration method, a registration management method, and a registration program that have effects.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

  FIG. 1 is a block diagram showing a configuration of an embodiment according to the present invention. As shown in FIG. 1, this embodiment supports a small base station device (hereinafter referred to as “HomeBTS”) 10 that can be carried for home and consumer use, and installation of the HomeBTS 10, as well as surrounding base station devices. A base station control device (spreading code management device) 20 that manages 30 information (hereinafter referred to as “BTS”) is connected to an IP (Internet Protocol) network 40 and constructed.

  Home BTS 10 is connected to IP network 40 and to a switching center (not shown) via a switching network (not shown). As shown in FIG. Base station body 10A including a unit 12, a transmission / reception unit 13, a message generation unit 14, a storage unit 15, a position information acquisition unit 16, an input unit 17, a spreading code allocation unit 18, and an antenna 19. And a main controller 10B that individually controls the operation of each component of the base station body 10A. Here, the transmission / reception unit 13, the message generation unit 14, the position information acquisition unit 16, and the spreading code allocation unit 18 actually transfer a control program (not shown) stored in the storage unit 15 to a CPU (not shown). ) Is generated by executing.

The incoming call processing unit 11 converts a speech signal whose spectrum is spread from a portable terminal (not shown) and spreads over a wide communication band into a baseband signal, and is a despreader 11a. And a filter 11b and a demodulator 11c.
The despreader 11a superimposes the spread code (PN code: Psude Random Nois code) input from the spread code generator 13 on the speech signal spread over a wide band received by wireless communication, and displays the original narrow and high peak. A call signal having a communication band is output (despreading process). Note that the noise included in the call signal has a wide and low peak communication band because the spread processing is not performed in the mobile terminal.

The filter 11b outputs a speech signal obtained by removing a noise component from the incoming signal output from the despreader 11a to the demodulator 11c.
The demodulator 11c demodulates the speech signal having no noise component input from the filter 11b by using a phase shift method to generate a speech signal composed of a baseband signal. Output to means 13a.

The call processing unit 12 converts a call signal composed of a baseband signal transmitted from the exchange to a call signal having a wide communication band and a low peak, which is necessary for transmitting to the mobile terminal on the receiving side. A carrier wave generator 12a, a modulator 12b, and a spreader 12c.
The carrier wave generator 12 a outputs a carrier wave for carrying the baseband signal input from the call signal transmitting / receiving unit 13 b of the transmitting / receiving unit 13. The modulator 12b outputs a speech signal obtained by modulating the speech signal superimposed on the carrier wave by the phase shift method to the spreader 12d. The spreader 12 c superimposes a spread code on the input phase shift modulated speech signal, generates a speech signal having a wide communication band and a low peak, and outputs this signal to the antenna 19.

The transmission / reception unit 13 includes a call signal transmission / reception unit 13a and a message transmission / reception unit 13b. Among these, the call signal transmission / reception means 13 a transmits the call signal output from the incoming call processing unit 11 to the switching center, and outputs the call signal transmitted from the switching station to the call processing unit 12.
The message transmitting / receiving means (position information transmitting means, spreading code receiving means) 13b transmits a spreading code request message described later to the base station controller 20 via the IP network 40. Further, the message transmission / reception means 13b receives a spread code notification message, which will be described later, received from the base station controller 20 via the IP network 40. Further, the message transmission / reception means 13b transmits a spreading code assignment message to be described later to the base station controller 20 via the IP network 40. Further, the message transmission / reception means 13b receives a permission message (to be described later) received from the base station control device 20 via the IP network 40.

  The message generation unit 14 includes a serial number for identifying the Home BTS 10 stored in the serial number storage area in the storage unit 15, and position information and cell radius temporarily stored in the work area in the storage unit 15. Is generated, a spreading code request message in which these pieces of information are described is generated, and the generated spreading code request message is output to the message transmitting / receiving means 13b of the transmitting / receiving unit 13. The message generator 14 generates a spreading code assignment message in which the spreading code assigned by the spreading code assigning unit (spreading code assigning means) 18 is described. To 13b.

  Here, the spreading code request message is a message for requesting a spreading code used by the BTS 30 installed around the Home BTS 10. The spreading code assignment message is a message indicating a spreading code other than the spreading code used by the BTS 30 installed around the Home BTS 10. Here, the BTS 30 installed in the vicinity of the Home BTS 10 refers to the BTS 30 having a cell radius that overlaps the cell radius of the Home BTS 10.

The storage unit 15 includes a control program storage area, a serial number storage area, and a work area. A control program is stored in the control program storage area, a manufacturing number is stored in the manufacturing number storage area, and position information and a cell radius of the Home BTS 10 are temporarily stored in the work area.
The position information acquisition unit (position information acquisition unit) 16 receives position information including the latitude and longitude of the HomeBTS 10 from the GPS satellite 50 and temporarily stores the position information in a work area included in the storage unit 15.

The input unit 17 inputs a cell radius occupied by the HomeBTS 10 and temporarily stores the cell radius in a work area included in the storage unit 15.
A spreading code assigning unit (spreading code assigning means) 18 assigns a spreading code other than the spreading code described in the spreading code notification message input from the message sending / receiving unit 13b of the sending / receiving unit 13, and uses the assigned spreading code as a message. Output to the generation unit 14.
The antenna 19 transmits the call signal output from the call processing unit 12 to the portable terminal by wireless communication.

As shown in FIG. 3, the base station control device (spreading code management device) 20 includes a spreading code identification unit 21, a storage unit 22, an interference determination unit 23, a spreading code registration unit 24, and a message generation unit 25. The transmitter / receiver 26 is provided.
Here, the spread code specifying unit 21, the interference determination unit 23, the spread code registration unit 24, the message generation unit 25, and the transmission / reception unit 26 are controlled by a CPU (not shown) stored in the storage unit 22 (see FIG. (Not shown).
As shown in FIG. 4, the spreading code specifying unit 21 includes a distance calculating unit 21a, a combined cell radius calculating unit 21b, a neighboring base station specifying unit 21c, and a spreading code specifying unit 21d.

  The distance calculation means 21a reads the spread code request message stored in the work area in the storage unit 22, and is described in the position information described in this message and the position information data stored in the position information storage DB 22a22a. The distance between the Home BTS 10 and the BTS 30 indicated by the position information data is calculated from the current position information, and the calculated distance is output to the neighboring base station specifying means 21c. Next, the distance calculating unit 21a outputs the cell radius described in the spreading code request message and the cell radius described in the position information data to the combined cell radius calculating unit 21b.

  The sum cell radius calculation means 21b calculates the sum cell radius value by summing the cell radius described in the input spread code request message and the cell radius described in the position information data. The total cell radius value is output to the neighboring base station specifying means 21c.

  When the total cell radius value is input, the neighboring base station specifying unit 21c determines whether the input total cell radius total value is greater than or equal to the distance previously input from the distance calculation unit 21a. When it is determined that the total cell radius value is greater than or equal to the distance, it is determined that the BTS 30 having the input manufacturing number is installed around the Home BTS 10, and this manufacturing number is output to the spreading code specifying means 21d. To do.

  The spread code specifying means (spread code assigning means) 21d, when the serial number is input from the neighboring base station specifying means 21, searches the positional information data describing the serial number stored in the positional information storage DB 22a. The spread code described in this data is identified as the spread code used in the BTS 30 installed around the Home BTS 10, and this spread code is output to the work area of the storage unit 22 (spread code). Search transmission function).

  The storage unit 22 includes a control program storage area (not shown), the position information storage DB (spreading code data storage means) 22a, and a work area (not shown). A control program is stored in the control program storage area, the position information data is stored in the position information storage DB 22a, and a spread code request message and a spread code specifying means of the spread code specifying unit 21 are stored in the work area. The spreading code specified by 21c is stored. As shown in FIG. 5, the location information storage DB 22a stores location information data having a serial number for identifying the Home BTS 10 and BTS 30, location information consisting of latitude and longitude, a spreading code to be used, and a cell radius.

  The interference determination unit 23 confirms again whether or not there is a BTS 30 that interferes with the Home BTS 10 when the Home BTS 10 actually starts operation. That is, the interference determination unit 23 determines whether or not the position information data of the BTS 30 (in the vicinity of the Home BTS 10) having the same spreading code as that assigned by the Home BTS 10 via the IP network 40 is stored in the position information storage DB 22a. And the presence / absence thereof is determined (spread code interference determination function).

  When the interference determination unit 23 determines that the position information data is stored in the position information storage DB 22a, the interference determination unit 23 determines that the spread code received from the Home BTS 10 interferes with the BTS 30 installed in the vicinity. If not, it is determined that there is no interference. If the interference determination unit 23 determines that there is interference, the interference determination unit 23 outputs information indicating that there is interference to the spreading code specifying unit 21. If it determines that there is no interference, the interference determination unit 23 describes it in the spread allocation message. The manufactured serial number is output to the spread code registration unit 24.

  When the serial number is input, the spread code registration unit 24 reads the spread code request message describing the serial number stored in the work area of the storage unit 22, and manufactures the Home BTS 10 described in the message. Based on the number, the position information, the spread code, and the cell radius, the position information data of the Home BTS 10 is generated, and the generated position information data is registered in the position information storage DB 22a (spread code registration management function). In addition, the spreading code registration unit 24 outputs an instruction to generate a message permitting the spreading code described in the spreading code assignment message transmitted previously to the message generation unit 25 and also has a work in the storage unit 22. The spreading code request message and spreading code assignment message stored in the area are deleted.

  When the spreading code specified by the spreading code specifying unit 21 is input, the message generating unit 25 generates the above-described spreading code notification message and outputs this message to the transmitting / receiving unit 21. When the message generation unit 25 receives an instruction to generate a spreading code permission message described in the spreading code assignment message transmitted from the spreading code registration unit 24 in advance, the message generation unit 25 displays the permission message described above. The message is generated and output to the transmission / reception unit 26.

  The transmission / reception unit 26 stores the spreading code request message received from the Home BTS 10 via the IP network 40 in the work area of the storage 24. Further, when the spreading code notification message and the permission message input from the message generation unit 25 are input, the transmission / reception unit 22 transmits these messages to the Home BTS 10 via the IP network 40.

  Next, the operation of the entire system in this embodiment will be described.

6 and 7 are flowcharts showing the operation of the system.
Now, after the Home BTS 10 is installed and connected to the IP (Internet Protocol) network 40, when the Home BTS 10 starts, the position information acquisition unit 16 of the Home BTS 10 is composed of the latitude and longitude indicating its own position from the GPS satellite 50. The position information is received (step S11), the received position information is stored in the work area of the storage unit 16, and the fact that the position information has been received is input to the message generation unit 15 (position information acquisition step).

  When the fact that the position information has been received is input, the message generation unit 14 reads the position information and cell radius from the work area of the storage unit 15, the manufacturing number stored in the manufacturing number storage area, and the read position information Then, a spreading code request message in which the cell radius and the manufacturing number are described is generated (step S12), and this message is output to the transmission / reception unit 13.

  The message transmission / reception means 13b of the transmission / reception unit 13 transmits the spreading code request message input from the message generation unit 15 to the base station controller 20 via the IP network 40 (step S13: location information transmission step).

  When the base station control device 20 receives the spreading code request message transmitted by the HomeBTS 10, the transmitting / receiving unit 26 temporarily stores the received spreading code request message in the work area of the storage unit 22 (step S21), and at the same time, the spreading code request message. Is output to the spread code identification unit 21.

  Next, the distance calculation means 21a of the spread code specifying unit 21 reads the spread code request message stored in the work area in the storage unit 22 (step S22). Thereafter, the distance calculating unit 21a searches and determines whether there is position information data that has not been read yet and is stored in the position information storage DB 22a in the storage unit 22 (step S23). If the distance calculation unit 21a determines that there is no position information data that has not yet been read in the position information storage DB 22a (step S23; no), the process proceeds to step S27. On the other hand, when it is determined that there is position information data that has not yet been read in the position information storage DB 22a (step S23; present), the distance calculation unit 21a reads position information data that has not yet been read from the position information storage DB 22a.

  Thereafter, the distance calculation means 21a calculates the position information data from the latitude / longitude as the position information described in the read position information data and the latitude / longitude as the position information described in the spread code request message. The distance between the BTS 30 and the Home BTS 10 is calculated (step S24). Next, the distance calculating unit 21a outputs the calculated distance to the neighboring base station specifying unit 21c, and adds the cell radius described in the spread code request message and the cell radius described in the position information data to the sum cell. It outputs to the radius calculation means 21b.

  When the cell radius described in the spread code request message and the cell radius described in the position information data are input from the distance calculating unit, the total cell radius calculating unit 21b adds these cell radii. The sum cell radius value is calculated, and this sum cell radius value is output to the neighboring base station specifying means 21c.

  When the total cell radius value is input from the total cell radius calculation unit 21b, the neighboring base station specifying unit 21c determines whether the total cell radius total value is equal to or greater than the distance input from the distance calculation unit 21a. (Step S25). When the neighboring base station specifying unit 21c determines that the total cell radius value is greater than or equal to the distance (step S25; YES), the BTS 30 having the input manufacturing number is installed around the Home BTS 10. And the serial number is output to the spread code specifying means 21d.

  For example, referring to FIG. 1, the spread code specifying unit 21 determines that there are BTSs 30 # 1, # 2, and # 3 as BTSs 30 installed around the Home BTS 10, and uses these spread codes as work pieces. Store in the area.

  When the manufacturing code is input from the neighboring base station specifying unit 21, the spreading code specifying unit 21d reads the spreading code in the position information data describing the manufacturing number stored in the position information storage DB 22a (step S26), this spreading code is identified as the spreading code used in the BTS 30 installed around the Home BTS 10, and this spreading code is stored in the work area of the storage unit 22. Thereafter, the spread code specifying means 21d shifts the process to step S23, and continues the same process as described above.

In step S25, if the neighboring base station specifying unit 21c determines that the sum of cell radii is less than the distance (step S25; NO), the process proceeds to step S23 and the same process as described above is continued. Let
In step S23, when it is determined that there is no position information data that has not yet been read in the position information storage DB 22a (step S23; no), the distance calculation unit 21a sends an instruction to prompt generation of the above-described spreading code notification message. The data is output to the generation unit 25.
Then, the message generation unit 25 reads the spreading code (which may be plural) stored in the work area of the storage unit 22, generates a spreading code notification message in which the read spreading code is described (step S27), Outputting this message to the transceiver 26;

  The transmission / reception unit 26 transmits the spreading code notification message input from the message generation unit 25 to the Home BTS 10 via the IP network 40 (step S28: spreading code search transmission step).

When the Home BTS 10 receives the spreading code notification message, the message transmission / reception unit 13b of the transmission / reception unit 13 temporarily stores the spreading code notification message in the work area of the storage unit 15 (step S14), and spreads that the message has been received. The data is output to the code allocation unit 18.
Then, the spread code allocating unit 18 reads the spread code notification message from the work area of the storage unit 15, assigns a spread code that is not the spread code described in this message (step S15), and the spread code is described. An instruction to generate a spreading code assignment message is output to the message generator 14. For example, referring to FIG. 1, the spreading code assigning unit 18 assigns spreading codes other than the spreading codes used by the BTSs 30 of # 1, # 2, and # 3 that have been transmitted (spreading code assigning step).

  After that, the message generation unit 14, based on the input instruction, the spreading code assignment message in which the serial number stored in the work area of the storage unit 15 and the spreading code assigned by the spreading code assignment unit 18 are described. Is generated (step S16), and this message is output to the transmission / reception unit 13.

The message transmitting / receiving unit 13b of the transmitting / receiving unit 13 transmits the input spreading code assignment message to the base station control device 20 via the IP network 40 (step S17).
When the base station controller 20 receives the spreading code assignment message, the transmission / reception unit 26 temporarily stores this message in the work area of the storage unit 22 (step S29), and informs the interference determination unit 23 that this message has been received. Notice.

  Next, the interference determination unit 23 determines whether there is position information data that has not been read yet and is stored in the position information storage DB 22a included in the storage unit 22 (step S30). When the interference determination unit 23 determines that there is no position information data that has not yet been read in the position information storage DB 22a (step S30; no), the process proceeds to step S35 (spread code non-interference determination step). . On the other hand, when it is determined that there is position information data that has not yet been read in the position information storage DB 22a (step S30; present), the interference determination unit 23 reads position information data that has not yet been read from the position information storage DB 22a. Then, the spreading code request message having the serial number described in the spreading code assignment message is read from the work area of the storage unit 22.

  Thereafter, the interference determination unit 23 calculates the position from the latitude / longitude as the position information described in the read position information data and the latitude / longitude as the position information described in the read spread code request message. The distance between the BTS 30 of the information data and the Home BTS 10 is calculated (step S31).

  After that, the interference determination unit 23 adds the cell radius described in the read position information data and the cell radius described in the spread code request message to a value equal to or greater than the previously calculated distance. It is determined whether or not there is (step S32). When the interference determination unit 23 determines that the sum of the cell radii is equal to or greater than the distance (step S32; YES), the interference determination unit 23 determines that the BTS 30 is installed around the Home BTS 10. Next, the interference determination unit 23 determines whether or not the spreading code of the BTS 30 determined to be installed in the vicinity of the Home BTS 10 is described in the previously transmitted spreading code notification message ( Step S33).

  When the interference determination unit 23 determines that the spreading code of the BTS 30 determined to be installed around the Home BTS 10 is not described in the previously transmitted spreading code notification message (step S33; NO) ), And the spreading code described in the position information data is stored in the work area of the storage unit 22 (step S34). On the other hand, when the interference determination unit 23 determines that the spreading code of the BTS 30 determined to be installed in the vicinity of the Home BTS 10 is described in the previously transmitted spreading code notification message (step S33; YES), the process proceeds to step S30, and the same process as described above is continued.

  In step S30, when the interference determination unit 23 determines that there is no position information data that has not yet been read in the position information storage DB 22a (step S30; no), the spread code is stored in the work area of the storage unit 22. It is determined whether or not there is (step S35). If it is determined that the spread code is stored in the work area (step S35; YES), the interference determination unit 23 proceeds to step S27 and continues the same process as described above. On the other hand, when it is determined that the spread code is not stored in the work area (step S35; NO), that is, the spread code described in the input spread code assignment message interferes. If it is determined that there is not, the serial number described in the spreading code request message is output to the spreading code registration unit 24.

  When the serial number is input, the spread code registration unit 24 reads the spread code request message describing the serial number stored in the work area of the storage unit 22 and reads the Home BTS 10 described in this message. Based on the serial number, the position information, the spread code, and the cell radius, the home BTS 10 position information data is generated, and this position information data is registered in the position information storage DB 22a (step S36: spread code registration management step). . After that, the spread code registration unit 24 outputs an instruction to generate a message permitting the assigned spread code that has been transmitted to the message generation unit 25 and the spread stored in the work area of the storage unit 22. Delete the code request message and spreading code assignment message.

  The message generation unit 25 generates a permission message under the instruction from the spread code identification unit 21 and outputs this message to the transmission / reception unit 26. The transmission / reception unit 26 transmits this message to the Home BTS 10 via the IP network (step S37), and ends the process.

When the Home BTS 10 receives the permission message, the transmission / reception unit 13 outputs the received permission message to the spreading code allocation unit 18.
Thereafter, when the permission message is input, the spread code assigning unit 18 notifies the spread generator 13 of the spread code assigned previously, and the spread code generator 13 is set so as to generate this spread code ( Step S18), the process is terminated.

Here, for each process executed on the small base station or the small base station apparatus 10 side described above, that is, a position information acquisition process, a position information transmission process, a spread code reception process, and a spread code allocation process, the execution procedure thereof The contents may be programmed as a processing function or a specific function and executed by a computer.
Even in this case, it is possible to provide a location information registration program that functions substantially the same as the contents executed by the above-described small base station registration method.

  As described above, according to the above-described embodiment, the base station control device 20 refers to the position information data stored in the storage unit 22 and is installed around the Home BTS 10 based on the position information received from the Home BTS 10. The spreading codes of the BTSs 10 of # 1, # 2, and # 3 that have been set can be specified. Also, the Home BTS 10 can autonomously assign spreading codes different from these spreading codes based on the spreading codes used by the BTSs 10 of # 1, # 2, and # 3 received from the base station controller 20.

  As described above, according to the present invention, the user can use the above-described small base station (for example, home use) as long as there is an environment in which Internet communication is possible at a place where installation is desired without requiring special procedures or installation work. By purchasing a micro base station, a mobile phone call can be made using the base station. That is, the user of the Home BTS 10 can easily communicate with other mobile terminals without using special installation work or complicated location information registration procedures by simply using the existing IP network.

It is a block diagram which shows the structure of one Embodiment which concerns on this invention. It is a block diagram which shows the structure of the small base station apparatus in FIG. It is a block diagram which shows the structure of the base station control apparatus (spreading code management apparatus) in FIG. It is a block diagram which shows the structure of the spreading code specific | specification part in FIG. It is a figure which shows an example of the positional information registration data memorize | stored in positional information storage DB in FIG. 4 is a flowchart showing a part of the operation of the system disclosed in FIGS. 1 to 3; 4 is a flowchart showing another part of the operation of the system disclosed in FIGS. 1 to 3;

Explanation of symbols

10 Small base station, small base station equipment (HomeBTS)
10A Base station main unit 10B Main control unit 11 Incoming processing unit 12 Outgoing processing unit 13 Transmission / reception unit 13a Call signal transmission / reception unit 13b Message transmission / reception unit (position information transmission unit, spreading code reception unit)
14 position information message generation unit 15, 22 storage unit 16 position information acquisition unit (position information acquisition means)
17 Input Unit 18 Spreading Code Allocation Unit (Spreading Code Allocation Unit)
20 Base station control device (spreading code management device)
21 spreading code specifying unit 21c peripheral base station specifying means (peripheral base station apparatus specifying means)
21d Spread code specifying means (spread code assigning means)
22a Position information storage DB 22a (spreading code data storage means)
23 Interference Judgment Unit 24 Spreading Code Registration Unit 25 Message Generation Unit 26 Transmission / Reception Unit (Spreading Code Transmitting Unit)
30 Peripheral base stations (BTS)
40 IP network 50 GPS satellite

Claims (7)

  1. In a small base station apparatus that is portable for home use and consumer and that includes a small base station main unit connected to a network and a main control unit that controls the operation of each unit of the base station main unit.
    The base station body unit obtains position information of the base station body unit from a GPS satellite and stores it in a storage unit equipped in advance, and a spreader connected to the network and managing spreading codes of neighboring base stations Position information transmitting means for transmitting identification information and position information of the base station main body to the code management device, and a peripheral base transmitted from the spreading code management device corresponding to the position information of the base station main body A spreading code receiving means for receiving a spreading code of the station, and a spreading code not used by the neighboring base station based on the received spreading code, and assigning the spreading code to its own base station main body and registering it A small base station apparatus comprising spreading code allocating means for transmitting to a code management apparatus.
  2. In the small base station apparatus according to claim 1,
    A small base station apparatus, wherein a network to which the base station main body is connected is an IP network.
  3. In a base station registration management system comprising a spread code management device that is connected to a small base station that can be carried for home use and a consumer via an IP network, and manages the small base station,
    The spreading code management device is
    The base station identification number and location information sent from the small base station are received, and one or two or more neighboring base station spreading codes corresponding to the location information are retrieved and retrieved from a registration database, and the A spreading code search transmission function to transmit to the base station;
    Spreading that determines whether or not the spreading code interferes with the spreading code used by the neighboring base station when a spreading code not used by the neighboring base station is sent from the small base station A code non-interference determination function;
    A base station registration characterized by comprising a spreading code registration management function for registering and managing the spreading code from the small base station when it is determined that the spreading code does not interfere with the spreading code of the neighboring base station Management system.
  4. A small base station main body that can be carried for home and consumer use and connected to a network, and a main controller that controls the operation of each component of the base station main body, A base station registration method for transmitting and registering location information to a spread code management device installed separately in advance,
    A position information acquisition step of acquiring position information of the base station main body from a GPS satellite and storing it in a storage unit equipped in advance in the base station main body,
    A location information transmission step of transmitting identification information and location information of the base station main body to a spreading code management device connected to the network and managing a spreading code of each base station;
    A spreading code receiving step of receiving a spreading code used by a neighboring base station sent from the spreading code management device corresponding to the position information of the base station main body;
    A spreading code allocating step of allocating a spreading code not used by the neighboring base station based on the received spreading code for its own base station main body and transmitting it to the spreading code management apparatus together with identification information for registration; A base station registration method comprising:
  5. A portable code base station that is connected to a small base station that can be carried for home and consumer use via an IP network and that manages spreading codes of peripheral base stations, including the small base station, includes a position from the small base station. A base station registration management method for registering and managing information in the spreading code management device,
    Receiving the identification number and position information of the base station sent from the small base station and searching a registration database preliminarily equipped with one or two or more neighboring base station spreading codes corresponding to the position information A spreading code search transmission step for taking out and transmitting to the micro base station;
    Spreading that determines whether or not the spreading code interferes with the spreading code used by the neighboring base station when a spreading code not used by the neighboring base station is sent from the small base station A code non-interference determining step;
    A base station registration comprising: a base code registration managing step for registering and managing the base code when the base code from the small base station is determined not to interfere with the base station base station Management method.
  6. Positioning information of the small base station, comprising a spreading code management device that is connected to a portable base station for home use and consumer use via an IP network and manages spreading codes of peripheral base stations including the small base station Is a base station registration management method for registering and managing to the spreading code management device,
    A position information acquisition step in which the small base station acquires position information of the small base station from a GPS satellite and stores it in a storage unit equipped in advance;
    A position information transmission step in which the small base station transmits identification information and position information relating to the small base station to the spreading code management device;
    The spreading code management device receives the base station identification number and location information sent from the small base station, and is equipped in advance with one or more neighboring base station spreading codes corresponding to the location information. Searching and retrieving the registered database and transmitting to the small base station spread code search transmission step,
    In the small base station, based on the spreading code of the neighboring base station sent from the spreading code management device, assigning a spreading code not used by the neighboring base station for its own small base station, A spreading code assigning step for transmitting together with the identification information to the spreading code management device;
    In the spread code management apparatus, when a spread code not used by the neighboring base station is sent from the small base station, the spread code interferes with the spread code used by the neighboring base station. A spreading code non-interference determining step for determining whether to do,
    In this spread code management device, comprising: a spread code registration management step for registering and managing a spread code from the small base station when it is determined that it does not interfere with the spread code of the neighboring base station. A base station registration management method characterized by comprising:
  7. A position information registration program for transmitting position information of a small base station that can be carried for home use and consumer use for transmission from the small base station to a spread code management device connected via a network. ,
    On the small base station side, position information acquisition processing function for acquiring position information of the small base station from a GPS satellite and storing it in the storage unit of the small base station,
    A location information transmission processing function for transmitting the identification information and location information of the small base station to a spreading code management device connected to the network and managing the spreading code of each base station;
    A spreading code reception processing function for receiving and processing a spreading code used by a neighboring base station sent from the spreading code management device in response to position information from the small base station;
    Based on the received spreading code, a spreading code not used by the neighboring base station is allocated for its own small base station, and the spreading code is specified for registration and transmitted to the spreading code management apparatus together with the identification information function,
    A position information registration program characterized by causing a computer to execute.
JP2006086631A 2006-03-27 2006-03-27 Small base station apparatus, base station registration management system, registration method, registration management method, and registration program Expired - Fee Related JP4735838B2 (en)

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