JPH07170560A - Portable telephone system - Google Patents

Abstract

PURPOSE:To test a portable telephone system effciently. CONSTITUTION:Upon the receipt of a command from a test operation system Ops, a supervisory test system reserves relay using a designated channel for a test call to a radio base station BS being a test object through an ISDN exchange and gives a command of call of a test call to a test device TTR provided to a specific BS among plural base stations. The test call is connected to the supervisory test system via the BS accepting the reservation. The supervisory test system confirms the normality of the connected call.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile telephone system for realizing the use of a public network using a mobile telephone in which a subscriber line portion is wireless.

[0002]

2. Description of the Related Art For mobile phone systems, "-Special Issue-Evolving Personal Communication" (NIKKEI COMM)
UNICATIONS 1991.2.18, p52-
72) describes one basic concept.

[0003]

However, in the practical application of such a portable telephone system, not only the communication channel system but also how to maintain and operate the system becomes a major issue.

Therefore, an object of the present invention is to provide a mobile phone system capable of efficiently performing various maintenance and operations.

Another object of the present invention is to provide a mobile phone system capable of providing various services to subscribers.

[0006]

[Means for Solving the Problems] To achieve the above object,
The present invention relates to an exchange, a plurality of radio base stations installed for each region, which are connected to the exchange via a transmission line, and the radio base station which is determined according to the position of the exchange, and the radio base station is connected via the radio transmission line. A mobile phone, a test device attached to a specific wireless base station of the plurality of wireless base stations and connectable to an arbitrary wireless base station via a wireless transmission path, and a test between the test device. A test control device connected to the exchange for instructing, via the exchange, any one radio base station other than the specific radio base station to relay a call between the radio transmission line and the exchange. Provided is a mobile phone system having the above.

The present invention also provides an exchange, a plurality of radio base stations installed in each region, which are connected to the exchange via a transmission path, the radio base station determined according to the positions thereof, and radio transmission. A mobile phone that connects to the wireless base station using a part of a plurality of channels on the road, and a specific wireless base station of the plurality of wireless base stations, which is attached to the mobile phone via a wireless transmission path. Relaying between a test device connectable to an arbitrary radio base station and a specific channel on the radio transmission path of the test call between the test device and the exchange is performed by any one other than the particular radio base station. There is provided a mobile phone system having a test control device connected to the exchange, which gives instructions to one radio base station via the exchange.

Further, according to the present invention, an exchange, a plurality of radio base stations connected to the exchange via a transmission line and installed in each region, and a function used by each radio base station are designated online. Provided is a mobile phone system having a configuration management means connected to an exchange.

In addition, according to the present invention, in order to provide a service to a subscriber even on a mobile unit, a plurality of regions installed for each area are connected to the exchange through a transmission line. A wireless base station, a wireless base station installed on a mobile body, which is connected to the exchange through a wireless transmission line, and a mobile phone which is connected to the wireless base station through a wireless transmission line. Mobile phone system.

[0010]

According to the portable telephone system of the present invention, it is attached to a specific radio base station among a plurality of radio base stations. Then, the test control device relays the test call between the test device and the wireless transmission path between the switch and the switch to any one wireless base station other than the specific wireless base station. Direct through. The test call can be sent from the test control device to a test device attached to the specific one radio base station, or can be sent from the test device to the test control device, for example. Accordingly, the normality of the plurality of radio base stations can be efficiently performed by one test device attached to a specific radio base station. Further, if a test call is exchanged by designating a channel, a test can be conducted for each channel.

According to the mobile phone system of the present invention, the configuration management means specifies the function used by each of the radio base stations online. As a result, it is possible to limit the number of channels used by the radio base station connected to the exchange whose traffic volume exceeds a predetermined value, and prevent congestion from spreading to the entire system. That is, the system can be operated according to the traffic.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the mobile phone system according to the present invention will be described below.

1. First, the overall configuration of the mobile phone system according to this embodiment will be described.

First, FIG. 1 shows the physical configuration of the entire mobile phone system according to this embodiment.

In the figure, 1 is a mobile phone (hereinafter referred to as "PS"), 2 is a radio base station (hereinafter referred to as "BS", 3 is a base station controller (hereinafter referred to as "BSC"), and 4 is a subscriber. An exchange (hereinafter referred to as "LS"), 5 is a relay exchange,
6 and 9 are common lines, 7 is a service point (hereinafter referred to as "NS
P ") and 8 are network centers.

In such a system, each BS 2 is in charge of a certain area. PS1 and BS2 are wirelessly connected. Each PS1 registers its position in NSP7 via BS2. The NSP 7 manages the position of each PS. PS1 is wireless and makes a call using BS2 located nearby. When BS2 receives the call from PS1,
This is transmitted to LS4 via BSC3. LS4 is NS
P7 is notified of the position of the called side PS, the routing information from the NSP 7 to the called side PS is obtained, and the call is routed to the called side PS.

Next, FIG. 2 shows the concept of communication in the portable telephone system according to this embodiment.

As shown in the figure, the mobile phone system according to this embodiment has the following characteristic functions as compared with the conventional network that accommodates fixed wired terminals.

Position Registration Position information of a moving PS terminal (a function for registering / managing a calling point when an incoming call is made to the terminal, that is, an access point for a wireless access function in the network as the terminal moves. Is.

Hereinafter, this access point will be referred to as "NRA: Netw
orkRoutingAddress ". As a unit of NRA that is registered and managed as this position information, there may be considered a system of BS2 unit and a system of BS2 group unit, but in this embodiment, it is a BS group unit in consideration of position registration traffic. Then, it has a function of calling a plurality of BSs all at once.

Terminal Authentication In the mobile phone system, since PS1 moves, from the viewpoint of security, the subscriber number (PS) of the wireless terminal is used.
In addition to N), the machine number (MSI) that can uniquely identify the terminal
Authentication is required. Therefore, in this embodiment, a function for terminal authentication is provided in the network.

Management of Correspondence between Individual and Terminal In order to communicate with the called party regardless of the location of the called party, the individual number (PTN: Personal Tele-communi
It is desirable to give a cation number) and communicate with the called party by this personal number. Therefore, in the present embodiment, for this purpose, the subscriber numbers (PSN) of individuals and terminals are managed in association with each other. In addition, the form in which one PTN is used by one individual is also considered.

Individual Authentication In order to realize the management of the correspondence between the individual and the terminal, it is necessary to verify whether the sender / receiver is the individual who is associated with the terminal from the viewpoint of security. Will be needed.

Here, FIG. 3 shows, as an ER model, each entity (entity) necessary for the above functions and the relationship between each entity.

Next, the configuration of the network portion of the mobile phone system will be described.

First, the logical structure of the network is shown in FIG.

In this configuration, each function unit (wired access function unit 43,
Transmission function unit 44, service control function unit 45, service management function unit 46, network operation function unit 4
7. The wireless operation function section 42 and the wireless access function section 2 are added to the service operation function section 48). In this embodiment, these functions are provided below the conventional wire access function 43. This is in consideration of the affinity with existing networks. In addition, functions are added or changed to other functional units of the wireless access function unit 1 and the wireless access function unit 2.

Below, the conventional network is used for each functional unit.
Explain the different functions.

First, the wireless access function 2 section 41 will be described.

The radio access function section 2 41 has the following functions.

Paging using the PCH (Paging channel) in the wireless section
Next, the radio access function 1 and 42 will be described.

The wireless access function section 1 42 has the following functions.

Radio link control Radio channel air-blocking management Radio terminal data management Radio terminal data management such as call origination etc. Terminal authentication PSN and MSI correspondence management and terminal authentication procedure implementation General call Wireless termination within location registration area Simultaneous call when function is received Next, the function added or changed to the transfer function unit 44 will be shown.

Number Translation Routine Identification of PSN Number and Access to Service Control and Routing to Destination Radio Access Next, a function added or changed to the service control function unit 45 will be described.

Logical number conversion PSN to routing address conversion Position information management Changing routing address by position registration signal Charge details Raw information for creating charge details (calling / arriving address / charging index / connection time etc. The function added or changed to the management function unit 46 is shown.

Subscriber data processing Customer-related data such as customer control (screening, etc.) Management of charge details Preparation of charge details based on information from service control and transfer to service operation Next, addition to the service operation function unit 48 or Indicates the changed function.

Charge Management Service Order Next, functions added or changed to the network operation function unit 48 will be described.

Test Radio Access, Test of Radio Termination Function, and Test of Separation from Wired System Traffic Measurement of Traffic such as Originating / Receiving / Registration of Positions The above is the logical configuration of the network.

In mapping such a logical network to a physical network, the radio access function 1
As a method of deploying the unit 42 and the wireless access function 2 unit 41, three forms shown in FIG. 5 are possible.

FIG. 5 shows BS2 and L in each form.
The connection relationship between S4 and NSP is extracted and shown.

In FIG. 5, a is a mode in which one BS is selected from the BS group as a parent BS (BSM) and the function of controlling the BS is provided in the parent BS. In this mode, when the existing LS is used, each BS3 and LS4 are directly connected, and therefore the interface of BS3 and the interface of LS4.
If the LS4 is different, it may be necessary to provide the LS4 with functions such as speed conversion and channel switching during communication.

In FIG. 5, b is a form in which a BS controller (BSC) for controlling the BS is externally attached to the LS4. According to this mode, the interface between the BS3 and the LS4 can be matched by the BSC3, so that the existing LS can be used as it is.

FIG. 5C shows a form in which the radio access function is merged in the LS exchange. According to this mode, the existing LS cannot be used as it is, but there is an advantage that there is little duplication of equipment.

The form telephone system according to the present invention will be described below by taking the form b in which the existing LS can be used as it is as an example. In addition, the existing LS4 used for form b
Will be described assuming an ISDN exchange. The overall configuration of the telephone system shown above (FIG. 1) also has this form b.
It is shown by. In this case, BS-B
Considering the following points, the network configuration between SCs is B
It is desirable to construct a network in which S can be easily added or relocated, or a large-capacity BS is arranged so that a required number of CHs can be allocated by remote control for each BS.

Dramatic growth in demand for telephones Existence of localized high-traffic areas such as around stations, bus terminals, and downtown areas Response to temporary traffic concentration due to events, etc. (eg large exhibitions, sports competitions, (Concert etc.) Here, in Table 1, the physical positions in the form b of each function shown in FIG. 4 are shown in Table 1.

[0046]

[Table 1]

2. Location Registration Next, the location registration method of the mobile system according to the present embodiment will be described.

Call connection control for PS1 (incoming call processing, etc.)
In order to perform, the PS1 needs to perform detection and registration (position registration) of the current area within the network.

As described above, in this embodiment, the unit of NRA is the unit of BS group, so PS1 is
Detecting whether or not you are in the area in charge of the second group, the detected BS
Register the group identity with the network.

Here, possible position registration methods are summarized in FIG.

In this embodiment, of the methods shown in FIG.
The location registration unit is the BS group unit as described above, and both the manual operation and the automatic operation are used to trigger the location registration.
From the BS to the LS4 is immediately triggered when the BS2 requests the location registration, and the database 91 of the NSP7 always stores the location information. Also, in order to avoid excessive concentration of location registration, simultaneous registration is restricted by the number of registrations per unit time.

Here, when position registration is performed in response to a manual instruction from the carrier of PS1 as a trigger for position registration, the network will work unless the carrier of PS1 issues a position registration instruction each time the carrier moves. , It is not possible to make an incoming call because the PS1 position cannot be grasped. Therefore, PS1 needs to perform location registration. As a method for PS1 to automatically perform location registration, there is a method in which PS itself automatically registers when the boundary of the area in charge of BS2 group is exceeded.
For example, if you bring a PS terminal in the car and move at high speed,
The frequency of exceeding the boundary of the area in charge of the BS2 group increases, and when the boundary of the area in charge of the BS2 group is crossed, a large amount of location registration traffic is generated on the network side.

Therefore, in this embodiment, the PS1 is automatically registered by the following method.

FIG. 7 shows a location registration procedure performed by PS1.

PS1 has m BSs (m) in the general calling area (the area in charge of the BS group serving as the location registration unit).
It receives the BCCH transmitted from the wireless zone (K) and creates a BS map from this (101, 102, 103).
The BS map is a list of BSs transmitting each BCCH in order of the reception level of the BCCH received by PS1.

After the above processing is repeated n times in a fixed time period, the combinations of BSs in the created BS maps are compared. "Registration display" is performed (113), and after a certain period of time, the processing of (101, 102, 103) is restarted (1
05).

On the other hand, when the variation in BS combination in the BS map is small, the paging area in which it is located is determined from the received BCCH signal of the BS and a final BS map is created (106, 107). .

If the determined paging area is different from the previously registered area, the BS with the best reception state (or the BS capable of communication with an empty control channel) is selected from the BS map and the location is registered. (108, 1
09).

Then, the intermittent reception mode is entered while monitoring the BS selected in (109) (or while sequentially monitoring the BSs in the map), and the standby state for the incoming call request is entered. If the BS reception level drops,
Returning to the processing from (101), a plurality of BSs (B in the map
The reception level of (S is prioritized) is monitored and collated with the BS map.

On the other hand, if the in-service area position newly determined in (106) is the same as the paging area previously registered, the location is not registered and the target is changed to the BS in the updated BS map. Then, a standby state is entered (104).

According to the location registration procedure, for example, FIG.
Assuming the arrangement of BSs as shown in Fig. 5, as shown in Table 5, changes in the upper BS due to the moving speed of PS and the received power (distance from BS) are received at 5 second intervals, and BSs are ordered in the order of electric field strength.
If you decide to repeat the map 5 times (n = 5),
20km / h from the combination of the top two to three BSs (n = 2)
As described above, the position registration being moved can be deleted. When a PS with a low moving speed enters the area (or the power is turned on), it will be newly registered 25 seconds later.

[0062]

[Table 2]

However, in reality, the moving speed and direction of the PS1 holder are more complicated. For example, PS in a car
Has a large change in traveling speed due to traffic lights and traffic. In addition, the radio wave propagation state changes due to fading and the like, and the reception electric field strength changes even if the PS is stopped depending on the surrounding conditions.

In order to prevent position registration while waiting for a signal, the measurement interval and the number of times of measurement may be set larger than those in the above column (for example, interval × number of times> 2 minutes).
It is more desirable that the number of times (n) and the number of BSs (m) be set according to the usage status of the PS, surrounding conditions, and the like.

By the way, in order to prevent excessive manual registration,
Instead of registering the location immediately with the manual registration instruction,
By the manual registration instruction, the processing shown in FIG.
The number of times (n) may be set shorter than in the case of automatic registration and the activation may be performed.

In addition to the automatic position registration method according to the present embodiment described above, a method in which the BS2 has a function of managing the position information of the PS1 and the position registration is realized by polling from the BS2 to the PS11 is also considered. To be

Now, the PS1 registered in this way
The position information of is managed by the NSP 7. NSP7
Converts a routing address (NRA) in the network from PSN to PS corresponding to PSN.

Depending on the network configuration, a plurality of NSPs may be provided due to processing reasons.

In such a case, management of the position information and each N
A method of managing (overlapping) the entire position information by the SP and a method of collectively managing (dividing) the entire position information by a specific NSP can be adopted.

Here, in Table 3, a plurality of N's in both equations are shown.
The management information of SP7, location registration, data access, data amount, necessity of data synchronization, etc. are shown.

[0071]

[Table 3]

In the mobile phone system according to this embodiment, it is necessary to manage data for terminal authentication at the time of making / receiving a call to PS1 and at the time of location registration. Table 4 also shows the data management method. Method managed by NSP7 shown in
It is possible to adopt a method managed by the home BSC 3 and three methods managed by each BSC 3 in duplicate.

[0073]

[Table 4]

3. Interface between BS2-BSC3 Next, the interface between BS2 and BSC3 will be described.

As described above, this embodiment assumes an ISDN exchange as the LS4.

Therefore, the interface between the LS4 and the BSC3 is an I-interface conforming to ISDN.

Therefore, in this embodiment, BS2 and BSC3
The interval is also the I interface.

3-a. Call Data Interface First, in the present embodiment for explaining the call data interface, from the viewpoint of effective use of the line, the call channel between PS1 and BS is 32 kb / s ADPCM and I2 between BS2 and BSC3. Of the 2B + D channels provided by the interface, the B channel is divided and used (32 kb / s ADPC
M x 2, 16 kb / s ADPCM x 2 + 32 kb / s ADPCM x 1 etc.),
Between BS2 and BSC3, 2B + D secures a communication channel for two or more lines. When providing a service for communicating end-to-end while maintaining low bit rate data in digital form, the sub-channel can be used for this purpose.

The divisional use of the B channel will be described below.

In order to divide and use the B channel, the subchannels in the B channel have BS and BSC configurations.
Need to notify between.

First, the identifier used for this notification will be described.

CCITT Recommendation Q. According to the extension method of 931, as a method of designating the sub-channel in the B channel, as shown in Table 5, the indication of divided use and the sub-channel are indicated in the channel identifier in the message transmitted and received between BS2 and BSC3. A method for extending the information element for displaying the identification of the subchannel and designating the subchannel (channel identifier extension in Table 3), and defining an information element for newly identifying the subchannel as a network-specific information element, this is defined as a message. -A method of specifying subchannels by including them in the table (in Table 5,
Sub-channel identifier addition). However, in the method of extending the channel identifier, it is necessary to change the existing information element.

[0083]

[Table 5]

Next, a description will be given of the sequence of designation of the call channel at the time of an incoming call.

As a method of specifying a call channel at the time of an incoming call, as shown in Table 6, there are a method specified by the BS2 side and a method specified by the BSC3 side. However, in the method specified by the BSC 3 side, since a channel is specified and an incoming call (SETUP transmission) is made, there is a possibility that invalidation of the channel may occur when the BSs are simultaneously called.

[0086]

[Table 6]

Next, the speed conversion method for the B channel in the BSC 4 will be described.

Since the ISDN exchange 4 performs the exchange at a rate of 64 kb / s as a basis, the BSC 4 transmits 32 and 16 kb / s ADPCM data on the sub-channel to 64 bits each.
It is necessary to convert to kb / s PCM data and pass it to the ISDN exchange 4. The reverse operation is also necessary.

In consideration of the possibility that PS1s and terminals having different data rates may coexist in the same BS, there are 6 calls for each call.
4kPCM and 32kADPCM or 64kPCM and 16kAD
It is desirable to dynamically perform conversion such as PCM.

FIG. 9 shows three configuration examples of the line-corresponding speed conversion function unit of the BSC 4.

In the configuration shown in FIG. 9a, in the BSC4, a speed conversion circuit 1401 is installed corresponding to the line in front of the 64 kb / s digital switch 1402. With this circuit, the data rate of each sub-channel is 64 kb / s. This is a configuration for converting to bits.

In the configuration shown in FIG. 9b, in the BSC4, the digital switch 1403 has 64 kb / s or less (8 kb / s).
/ s, 16 kb / s, 32 kb / s) Multi-rate switch capable of exchanging sub-rate data is adopted, and 32 kAD after switching
PCM ← → 64kPCM and 16kADPCM ← → 64kP
Trunks 1404 and 1405 having different functions such as CM are installed. Then, by using the multiple switch 1403, BS2
The low bit rate channels from are classified by speed, connected to the corresponding trunks 1404 and 1405, and the speed of each bit rate is converted to 64 kb / s.
It is configured to be exchanged at 403 and sent to the ISDN exchange.

The configuration shown in FIG. 9c has a structure in which after 64 kb / s digital switch 1406, 64 kb / s or less (8 kb / s,
16 kb / s, 32 kb / s) Multiple switch 1407 capable of exchanging subrate data and various individual trunks 140
Installed a common trunk 1407 consisting of 9, 1410,
Subrate exchange and speed conversion are performed in the common trunk 1407, and the digital switch 1406 exchanges the subrate again.
This is a configuration for sending to the DN exchange. It is a composition.

In the configuration shown in FIG. 9a, the speed conversion unit 1401 needs to handle all speed conversions, and therefore the hardware amount for one line is large. Also,
In the configuration shown in FIG. 9b, the number of multiple switches accommodated is large and the scale is increased. The configuration shown in FIG.
Since the multiple switch 1408 is housed on the 078 side,
The number of multiple switches accommodated is small, and flexible processing is possible.

Table 7 shows a summary of the characteristics of each component.

[0096]

[Table 7]

3-b. Control data interface (D
Channel Usage Method) In this embodiment, BS2 needs to multiplex the call processing signal / location registration signal from each PS to the D channel of the I interface and transmit / receive it to / from BSC3.

As a method of multiplexing the signals with a plurality of PSs on the same D channel, two methods shown in Table 8 can be considered.

[0099]

[Table 8]

The layer 2 multiplex system in Table 8 is a system for identifying the PS terminal by the layer 2 (TEI: terminal identifier) of the I interface. In this case, the BS manages the correspondence between TEI and PS.

However, in the primary group I interface of 23B + D, since TEI = 0 is fixed, TEI cannot be used.

The layer 3 multiplex system in Table 8 is layer 3
A method of identifying a PS terminal by (CR: call number),
The TEI between BS2 and BSC3 is fixed, signals are multiplexed on the same layer 2 link, and PS is identified by the call number.

4. Redundant configuration of BS2 and BSC3 When a failure occurs, in order to avoid it, BS
2. It is desirable that the BSC 3 has a redundant structure.

However, with respect to BS2, since the zones of each BS2 overlap, the influence at the time of a failure is small, and even at the time of a failure, the area is small and the area is moved to an adjacent area to call again. In the present embodiment, the BS 2 does not have a redundant configuration because it is easy to perform. However, it is desirable to take an appropriate redundant configuration for the BS 2 that bears an area requiring particularly reliability.

On the other hand, as for the BSC3, the area covered by the 1BSC is large, the hardware scale is large, and it is necessary to perform high-level processing such as the wireless access function 2 and the authentication procedure described above. Compared to this, failures are more likely to occur and their effects are also large.

Therefore, in this embodiment, in order to ensure reliability, the structure of the BSC 3 is a double structure.

FIG. 10 shows the configuration of the BSC3.

As shown in the figure, except for the terminal end with BS2,
Common part 1 is the part that performs wireless access function 2 and authentication procedures.
It is doubled as 50. Also, two interfaces 152 are provided for the ISDN exchange to be accommodated,
The service can be continued even if one is disconnected.

It is desirable that the line interface section 153 on the ISDN exchange 4 side, which is responsible for the termination of these two interfaces 152, be housed in a separate unit to improve reliability.

5. Protocol Next, a protocol of the mobile phone system according to the present embodiment will be shown.

First, in FIG. 11, PS1-BS2, BS2
-Indicates a protocol conforming between BSC3, BSC3-LS4, LS4-NSP7.

5-a. Basic Sequence Next, the position registration sequence is shown in FIG. 12, the calling sequence is shown in FIG. 13, the incoming call sequence is shown in FIG. 14, the in-call channel switching sequence is shown in FIG. The sequence is shown in FIG.

Note that the channel switching during a call is performed to switch the BS2 communicating with the PS1 when the PS1 moves during a call.

5-b. Sequence for special services (1) Police / firefighting call
It is equipped with the following functions for making calls to fire fighting calls.

Calling ID notification I given to BSC when calling to police or fire stand
In addition to D, the BS number and PSN are also notified. For this purpose, an information element for inserting the BS number is added to the message between BSC and LS. The notification sequence of the calling ID will be shown later.

Recall function When an incoming call is made to the police or fire stand, even if the calling side disconnects the call, it is necessary to maintain the channel between them so that the police and the fire stand can recall the call.

For this reason, in this embodiment, BS2 is provided with a wireless channel holding function and PS1 is called back.

FIG. 17 shows a sequence of police / fire service call for realizing the recall holding function.

As shown in the figure, the hold start timing is 110/11
This is the case when disconnecting from the PS1 terminal after the 9th call. Although not shown in the figure, the hold release trigger is a timeout of a predetermined hold timer / police and disconnection from the fire stand.

Emergency Display In this embodiment, an emergency display lamp or the like is displayed on the outgoing call BS2 when a police / fire service call is sent. This is for suppressing mischievous 110 calls and improving security (the BS can be easily identified when the call is made to the site).

(2) Notification of Calling ID Next, the notification of the calling ID used during the processing of the police / fire service call will be described.

Such notification of the calling ID is necessary for displaying the calling party on the called side during personal communication, in addition to the police / fire fighting call.

In this embodiment, the calling side PSN is notified in the case of PS call-PS arrival, the calling side PSN is notified in the case of PS call-fixed wired terminal arrival, and the fixed wire terminal origin-PS arrival is notified in the case of PS originated-fixed wired terminal arrival. Notify the DN of the fixed wired terminal.

FIG. 18 shows the calling ID notification sequence.

As shown in the figure, in order to display the PSN on the called terminal, the PSN has a function of transferring the PSN end to end. Further, it has a function of transferring two types of numbers in order to transfer the calling ID and the called ID in the network.

7. Data Communication Function Now, the mobile phone system is mainly intended to realize a voice communication call between PSs via a public network. In this embodiment, a data terminal can be connected to PS1 and PS1 is used. Realizes data communication.

FIG. 19 shows the connection configuration between PS1 and the data terminal.

In the figure, 270 is an error control circuit,
Connected between S1 and the data terminal. The error control circuit 270 may be built in the PS1.

An example of media communication that can be performed as data communication via PS1 will be given below.

Data Communication Between Personal Computer, Word Processor, Electronic Notebook PS1 performs digital transmission of 32 kbps per channel. Therefore, when data communication is performed between a personal computer, a word processor, and an electronic notebook, R232C (10.2 kbps) is used as an interface between the error control circuit 270 and the data terminal 271.

In voice communication, a line quality of bit error rate> 10 ## is sufficient, but a better transmission error rate is required in data transmission. Therefore, RS232C redundancy is allocated to error control and transmission is performed. The error circuit improves the transmission error rate.

Communication with ISDN Terminal (G4 Facsimile, Videophone, etc.) Since the transmission speed of an ISDN terminal such as G4 facsimile, videophone is usually 1B = 64 kbps, during data communication, PS1 is 32 kbps for voice communication. Data transmission is performed at 64 kbps for two channels. This 64 kbp
BS2 puts the data of s on the same B channel and BSC
Send to 4. BSC4 exchanges this for LS4.

However, although a transmission error can be tolerated if the dot unit is slightly deteriorated in image transmission, it cannot be shared in the case of a control signal or the like. So 64kb
When communicating with a ps ISDN terminal, error correction is performed by retransmission.

When the immediacy is required such as in a videophone, the PS1 may perform data transmission in the 32 kbps channel 3-4 minutes for voice communication in consideration of the redundancy due to error control. Good.

Communication with Wireless LAN Terminal Currently, various wireless LANs have been proposed.
It is expected that the N terminals and PS1 have greatly different transmission rates. Therefore, when communicating with a wireless LAN terminal, a function for absorbing the speed difference is provided on the wireless LAN or the network.

7. Maintenance and Operation Next, maintenance and operation of the mobile phone system according to the present embodiment will be described.

In the mobile phone system according to the present embodiment, five management tasks of fault management, performance management, configuration management, accounting management and confidentiality management occur for system maintenance and operation. In this embodiment, the maintenance and operation system supports these tasks.

7-a. Configuration of Maintenance / Operation System Therefore, first, the configuration of the maintenance / operation system of the mobile phone system according to the present embodiment will be described.

FIG. 20 shows the configuration of the maintenance operation system on the mobile phone system according to this embodiment.

As shown in the figure, in the present embodiment, a traffic operation system, a maintenance operation system, and a test operation system are provided to support the above-mentioned management operations. Then, each operation system is in charge of each management task as shown in FIG. Further, as shown in FIG. 21, the NSP 7 and the NSSP also play a part in these management tasks.

Here, in FIG. 20, 2900 is a traffic operation system, which is provided with a traffic congestion control system 2902 and a traffic management information system 2901. Reference numeral 2910 is a maintenance operation system, which is an exchange maintenance support system 2911.
Is equipped with. 2920 is a test operation system, which includes a test access management system 2921 and a failure report acceptance system 2922.

Reference numeral 9 is a packet network connecting these operation systems and the monitoring test system 2930 common line 6. Reference numeral 2930 is a monitoring test system, which is an ISD via an intra-maintenance network 2960 and an alarm information transfer network 2950.
Connect to N switch 4 and BSC 3.

Information that needs to be transferred as maintenance information in the maintenance and operation system includes traffic information, command message information, test access information, etc. In the configuration, two methods shown in FIG. 22 can be considered as methods for transferring various information. In the method shown in b in the figure, the packet function of the ISDN exchange is used, and the BSC
Access interface information between and.

In the following, in the present embodiment, for convenience of explanation, the method of b in the figure is adopted.

7-b. Fault Management Business Next, the function of the maintenance operation system that supports the above-mentioned fault management business will be described.

In this embodiment, a failure monitoring function, a test and a diagnosis function are provided to support the failure management work.

7-b-1. Fault Monitoring Function First, the fault monitoring function will be described.

This function assists the maintenance person in grasping the failure state of the communication equipment and taking prompt and appropriate measures against the failure.

By the way, the failure parts of the form telephone system according to the present embodiment are PS failure, PS-BS failure,
BS failure, BS-BSC failure, BSC failure, BSC-
There may be a failure between ISDN exchanges or an ISDN exchange failure. Therefore, in this embodiment, BS2, BSC3, IS
The DN switch 4 monitors the failure. Further, when a failure is detected in the ISDN exchange 4, the failure is detected between the BSC-ISDN exchange.

FIG. 23 shows the transfer route of the fault information detected by BS2 and BSC3. As shown, B
The faults detected in S2 and BSC3 are aggregated in BSC3 and then notified to a predetermined operation system.

The fault monitoring items to be monitored for detecting a fault in this embodiment will be described below.

(1) Fault monitoring items in BS Table 9 shows fault monitoring items in the BS.

[0153]

[Table 9]

Regarding the PS-BS protocol errors and error rates of Nos. 3 and 4 in Table 9, since PS-BS is wireless transmission and PS moves, the state at the time of communication service failure is reproduced. It is expected that there are many cases where this is not possible.
In addition, from the viewpoint of the amount of memory in the BS and the preventive maintenance of the BS, for the fault monitoring items such as protocol errors and error rates, which usually transmit fault information after a certain number of times, accumulated fault information is periodically It is necessary to notify the center of the failure information. Therefore, the present embodiment has a failure information logging function for recording the situation at the time of failure occurrence. Then, the log data includes the BS identifier, the time of failure occurrence, and the failure content.

In this embodiment, B shown in FIG. 24 is used.
According to the processing flow at the time of failure detection in S, the BS stores the failure information in the log file together with the failure information 3105 which transmits the failure information when the failure detection frequency exceeds a certain value (3101). The log file is transmitted to 3103 (3104).

Log file, BS2 reports failure information to BSC
As a method of transmitting data to the I.NET, a method of using a B channel packet on the I interface and a method of using a D channel packet can be considered.

By the way, in the method using the D channel packet, since the D channel from the BS is once terminated in the BSC, the processing load on the processor system in the BSC during the popularization period when the BSC accommodates a large number of BSs. Can be very large. Therefore, in the case of the method using the D channel packet, it is desirable that the so-called frame relay interface is used to perform the transfer without imposing a load on the processor system of the BSC.

(2) Fault Monitoring Item in BSC The BSC monitors the quality of the transmission path and the communication procedure regarding the communication between the BS and the BSC.

Table 10 shows failure monitoring items in the BSC.

[0160]

[Table 10]

Further, regarding a failure in the BSC 3, information on the failure is visually displayed on the alarm display board or the like in the BSC installation station shown by reference numeral 3200 in FIG. 23 from the viewpoint of ease of maintenance, by using a metallic line or the like. Is desirable.

7-b-2. Test / Diagnostic Function Next, the test / diagnosis function will be described.

The test and diagnostic functions perform three tests: a periodic test for preventive maintenance of wireless line connection, a fault isolation test when reporting a fault, and various line / terminal tests for normality confirmation.

Table 11 shows a list of test items of each test.

[0165]

[Table 11]

The contents of each test will be described below.

(1) Periodic Test The periodical test is a periodical test for early detection of defective devices, lines, and defective line connection control functions.
In this test, a tester of the monitoring / testing system and a tester TTR as a test terminal are opposed to each other.

In the case of a wireless terminal, it is difficult to carry out a follow-up investigation / analysis in which the position of the wireless terminal changes every moment, so that such a periodical test is important for preventive maintenance. Note that the monitoring / testing system 2430 has a function of reserving the BS 2 and the radio channel used for the test.
By specifying the S2 and the channel and performing the transmission / reception test with the TTR, the BS and the channel to be tested can be specified. Further, the TTR is provided with a voice signal return function to enable voice confirmation.

By the way, the automatic transmission connection test shown in Table 11 is performed by using the voice signal loopback function in the TTR, and in the configuration shown in the upper part of FIG.
This is a test for testing the normality of the transmission operation by designating S2 and the channel and causing the TTR to transmit. As shown, TT
R is provided in addition to a specific BS among a plurality of BSs. Then, it connects to another BS via a wireless channel.

In addition, the automatic incoming call connection test shown in Table 11 uses the voice signal loopback function in the TTR, has the configuration shown in the upper part of FIG. 26, and specifies BS2 and the channel in the sequence shown in the lower part. In this test, the TTR receives an incoming call to test the normality of the incoming call operation.

(2) Fault Isolation Test The fault isolation test is a test performed to isolate a faulty part.

The fault isolation test is performed when the subscriber makes a fault report to the fault report receiving system 2922 of the test operation system 2920 through the network. In this case, the subscriber uses it for reporting. The connection route to the PS is not always the same as the situation when the failure occurred. Therefore, in this embodiment, the call connection route and the fault information at the time of the call loss are accumulated as journal information in real time, and the journal information is searched at the time of the fault report to find the suspect route.

Regarding the suspected route, a loopback test is carried out in order to isolate the presence / absence of a failure at three points: BS to BSC transmission line section, BS wired section, and wireless section.

That is, as shown in FIG. 27, the transmission path is turned back in correspondence with the assumed failure point, and the test shown in Table 12 is performed according to the turning point.

[0175]

[Table 12]

(3) Line / Terminal Test The line / terminal test is a confirmation test of various lines / terminals shown in Table 13 in order to confirm normality due to failure recovery or new registration.

[0177]

[Table 13]

7-c. Performance Management Work Next, the function of the maintenance operation system that supports the performance management work described above will be described.

In this embodiment, a traffic management function, a restriction, and a centralized call countermeasure function are provided to support the performance management work.

7-c-1. Traffic Management Function First, the traffic management function will be described.

The traffic management function is a function of collecting observation data of short-term and long-term changes such as day, week, month and seasonal changes of various traffic for each BS. Note that the observation data collected in this way is reflected in the equipment plan such as the addition of BSs and the optimal arrangement in order to provide communication services more efficiently.

FIG. 28 shows the traffic data observation points (
) And the data transfer route.

As shown in the figure, traffic observation points are provided outside the BS as much as possible to facilitate future traffic management methods and development of routing technology.

As shown in the figure, the traffic observed by the BSC is collected and managed by the traffic operation system 2900 via the intra-maintenance network 2960. Further, the traffic observed by the BS is transferred to the traffic operation system via the intra-maintenance network 2960 via the BSC, and is collected and managed.

Table 14 shows the purpose of using the collected observation data.

[0186]

[Table 14]

7-c-2. Regulation / centralized call countermeasure function The regulation / centralized call countermeasure function is to regulate outgoing calls, incoming calls, location registration calls, etc. in order to prevent congestion caused by a specific device due to a disaster or event from spreading to the entire network. It is a function to do.

By the way, since there are two types of congestion factors, that is, the incoming call system and the outgoing call / location registration system, the contents of the regulation are shown for each factor.

(1) Congestion of Incoming Call System Congestion of the incoming call system may be for a specific zone or for a specific subscriber, but is processed by incoming call restriction processing in the ISDN exchange.

(2) Congestion of origination / location registration system Congestion of origination / location registration system is also regulated by origination regulation processing in the ISDN exchange. However, even if the location registration is restricted, manual location registration will be accepted.

7-d. Configuration Management Work Next, the function of the maintenance operation system that supports the above-described configuration management work will be described.

In this embodiment, in order to support the configuration management work, a service order registration / opening test function and a BS extension / opening test function are provided.

7-d-1. Service order registration / opening test function First, the service order registration / opening test function will be described.

The service order registration / opening test function includes a service order registration function and a opening test function. The service order registration function is a function to newly install, register new service, and abolish the PS subscriber terminal, and the opening test function is a test to verify the normality of the set subscriber information by the service order registration function. It is a function.

FIG. 29 shows the operation of the service order registration / opening test function.

As shown in FIG. 29, the service order registration function accepts a service order registration request at a service management node (NSSP2980) that registers and manages resources in the network.

That is, the NSSP customer terminal (W
From S), the subscriber information of the PS subscriber terminal is input as service order registration information, edited by the NSSP 2980, and stored as customer definition information in the database DB 3700 attached to the NSSP 2980 for management.

Further, these customer-defined information are stored in the NSP.
Create the subscriber information by converting it to the information format used in
Database base DB37 attached to NSP from SSP2980
Download to 10.

On the other hand, the opening test function is realized by the test operation system 2920 performing an outgoing / incoming connection test in order to confirm the normality of the subscriber information set by the service order registration function.

The outgoing connection test is performed by a tester on the subscriber terminal (PS) side dialing a specific test terminal in the network or dialing a special test number. This is a test that tests whether or not the test operation system 2920 can be connected and confirms the normality of transmission.

The incoming connection test is performed from the test stand of the test operation system 2920 to the PS of the PS terminal to be tested.
This is a test in which N is designated to test whether the connection is normal and to confirm the normality of the incoming call.

7-d-2. BS extension opening test function The BS extension opening test function consists of a BS extension function and a BS opening test function. The BS addition function is a function to newly install a BS in the network, and the BS opening test function is a function to verify that the BS operates normally after the BS is installed.

First, the BS extension function will be described.

Since the BS is considered to be a terminal interface from the viewpoint of the BSC, the BS is registered in the BSC by inserting a service order from the terminal WS attached to the maintenance operation system 2910 to the BSC 3 when adding the BS.

However, at various events (events), etc.,
Since it may be necessary to add BSs in a short time, in such a case, the BSC automatically creates BS-related data at the time of a pseudo call from the expanded BS.

BS such as BS type stored in BSC
Current station change function to rewrite attribute data online,
BS files such as various software stored in BS,
A BS file update function for updating to add a service is provided.

Next, the BS opening test function will be described.

FIG. 30 shows the operation of the BS opening test function.

As shown in the figure, the BS opening test function is realized by the test operation system 2920 performing the outgoing connection and incoming connection tests.

As shown in the figure, in the outgoing connection test, the BS2 to which the power switch is turned on after the BS to be added is attached
Is a test for verifying the normality of transmission by calling the test operation system 2920 via the network.

[0211] The incoming connection test is a process started after a lapse of a certain time after the outgoing connection test, and is a test for verifying the normality of the incoming call by the test operation system 2920 calling the additional BS via the network. Is.

The test operation system 29
Reference numeral 20 monitors the signal sequences of these tests, displays detailed information on the test bench test results on the attached terminal WS, etc., and lights the status lamp built in the BS, which was the test target, according to the test results. To do so.

The above is the description of the maintenance and operation of the mobile phone system according to the present embodiment. Finally, Table 15 shows the functions provided by the BS 2 for realizing the above maintenance and operation functions. It shows in.

[0214]

[Table 15]

8. Services provided to subscribers by the mobile phone system According to the mobile phone system according to this embodiment described above, various services can be realized on the mobile phone system.

These services will be described below.

FIG. 31 shows services that subscribers can enjoy, for example, at the time of waiting.

[0218] As shown in the figure, the subscriber can perform communication in the same place as the ordinary telephone by PS1.

Further, especially in a place where congestion is expected,
By providing a BS only for reception for the waiter, it is possible to inform the waiter of late arrival etc. to the smooth. Further, by prioritizing the incoming call to the subscriber whose BS2 is manually registered, the incoming call to the waiting person can be prioritized.

Also, if a restaurant or the like is provided with a base unit having a wide range of radio waves and subscribers in the store use PS1 as a slave unit via the base unit, even if there is no BS2 nearby, etc. The PS1 can be used without any trouble.

Next, FIG. 32 shows a service that subscribers can enjoy, for example when it is used in a moving body such as a bullet train.

As shown in the figure, by installing a remote BS2 that is connected to the network in the mobile body without any connection, the subscriber can communicate with PS1 in the same manner as a normal telephone.

[0223] In particular, by providing a booth exclusively for conversation, it is possible to conduct conversation so as not to disturb other passengers. When the passenger in the vehicle is notified of an incoming call, the remote BS2 also displays on PS1 a display urging the passenger to move to the conversation-only booth and makes a call while moving to the conversation booth. By requesting the person PS1 to display that he / she is moving, it is possible to use the conversation-only booth without any trouble even when an incoming call is received by a passenger in the vehicle. In addition, as described above, it is possible to perform data communication via the BS2. In addition, a mobile unit equipped with a remote BS2 that connects to the network without a connection,
If dispatched to an area where a normal BS with a failure or a BS that cannot be used due to regular medical examinations is installed, service in that area can be continued even during such a period.

Next, FIG. 33 shows the services that the subscribers can enjoy, taking the case of use in the living area as an example.

As shown in the figure, the subscriber is PS1 in the living area.
With this, communication can be performed in the same manner as a normal telephone.

[0226] In particular, the communication received at the home telephone can be transferred to the PS1 carried by the subscriber who is out. Such a transfer function is provided in LS4, BS3, BS2 according to the area to transfer. By calling and connecting to the PS1 carried by a subscriber who is out from the doorphone at home through the PS1 in the home, it is possible to respond to the guest who is out of the office from the outside. The exchange function for such a call may be provided in BS3 and BS2 depending on the area where the call is made. Similarly, if the home-home equipment and the PS1 are connected at a predetermined trigger, the home-home equipment can be controlled from the outside and the home-home equipment can be controlled. Can be contacted. Also,
A service channel for contacting the neighborhood association and for advertising in the supermarket may be set up at BS2 in the area for use by subscribers. Alternatively, this service channel may be used as a dedicated wireless channel, and the PS1 of the user may receive this dedicated channel in response to the carrier's instruction to receive the service channel. Also, a service channel may be opened only between the calling PS and the calling PS in response to a call made from a specific PTN.

Next, FIG. 34 shows the services that the subscribers can enjoy, for example, when used in a department store.

As shown in the figure, the subscriber is PS1 at the department store.
With this, communication can be performed in the same manner as a normal telephone.
In addition, a service channel may be opened in BS2 in the store for use by subscribers in the department store.

Next, FIG. 35 shows the services that can be enjoyed by the subscribers, for example, when the service is used in an amusement park or a theme park.

As shown in the figure, the subscriber uses PS1 to
Communication can be performed like a normal telephone.

[0231] Also, in particular, the leader of the group is 1 in BS2.
By providing a function for calling N to N, it is possible to contact group members at one time. 1
The call-to-N paging function may be realized by receiving the setting of the group PTN or the representative PTN in advance and calling all the PSs set as the child PTNs of this PTN when the call is made to this PTN. In this case, BS2 may receive the notification from the group member, and the leader PS1 may display the content of the notification from the group member who received the notification.

[0232] Further, a service channel may be opened in BS2 in the park for use by subscribers in the park.

Next, FIG. 36 shows other services that the subscriber can enjoy.

Note that, as shown in FIG. 37, it is preferable that the BS 2 installed outdoors be displayed so that the current usage status can be known.

Also, the BS2 in the busy state receives the subscriber's P
P that accepted the outgoing reservation from S1 and received the priority
It is preferable that the transmission from S1 is accepted in the order of reservation. At this time, BS2 preferably controls the PS1 that has received the reservation to display the number of untransmitted subscribers among the number of subscribers who have received the reservation earlier.

[0236]

As described above, according to the present invention, it is possible to provide a portable telephone system capable of efficiently performing various maintenance and operations.

[Brief description of drawings]

FIG. 1 is a block diagram showing a physical configuration of an entire mobile phone system.

FIG. 2 is an explanatory diagram showing a concept of communication in a mobile phone system.

FIG. 3 is a model diagram showing an ER model of a mobile phone system.

FIG. 4 is an explanatory diagram showing a logical configuration of a network of a mobile phone system.

FIG. 5 is a block diagram showing a physical arrangement of a wireless access function unit 1 and a wireless access function unit 2.

FIG. 6 is an explanatory diagram showing a location registration method.

FIG. 7 is a flowchart showing a processing procedure of location registration processing performed by the PS.

FIG. 8 is an explanatory diagram showing an arrangement example of BSs.

FIG. 9 is a block diagram showing a configuration of a line corresponding speed conversion function unit of the BSC.

FIG. 10 is a block diagram showing a configuration of a BSC.

FIG. 11 is an explanatory diagram showing a protocol with which the mobile phone system complies.

FIG. 12 is a sequence diagram showing a location registration sequence of the mobile phone system.

FIG. 13 is a sequence diagram showing a calling sequence of the mobile phone system.

FIG. 14 is a sequence diagram showing an incoming call sequence of the mobile phone system.

FIG. 15 is a sequence diagram showing a channel switching sequence of the mobile phone system.

FIG. 16 is a sequence diagram showing a termination sequence and a disconnection sequence of the mobile phone system.

FIG. 17 is a sequence diagram showing a sequence of police and firefighting calls of the mobile phone system.

FIG. 18 is a sequence diagram showing a notification sequence of a mobile phone system originating ID.

FIG. 19 is a block diagram showing a connection form between a PS and a data terminal.

FIG. 20 is a block diagram showing a configuration of a maintenance operation system on a mobile phone system.

FIG. 21 is a correspondence diagram showing the correspondence between the operation system and the management work.

FIG. 22 is an explanatory diagram showing a method of transferring maintenance and operation data.

FIG. 23 is an explanatory diagram showing transfer routes of failure information detected by the BS and BSC.

FIG. 24 is a flowchart showing a procedure of processing performed by the BS when detecting a failure.

FIG. 25 is a sequence diagram showing a sequence of an automatic transmission connection test.

FIG. 26 is a sequence diagram showing a sequence of an automatic incoming call connection test.

FIG. 27 is an explanatory diagram showing turning points in a turning test.

FIG. 28 is an explanatory diagram showing traffic data observation points and transfer routes.

FIG. 29 is an explanatory diagram showing the operation of the service order and opening test function.

FIG. 30 is an explanatory diagram showing the operation of the BS opening test function.

FIG. 31 is an explanatory diagram illustrating services provided by a mobile phone system to a user.

FIG. 32 is an explanatory diagram illustrating services provided by a mobile phone system to a user.

FIG. 33 is an explanatory diagram illustrating services provided by a mobile phone system to a user.

FIG. 34 is an explanatory diagram exemplifying the services provided to the user by the mobile phone system.

FIG. 35 is an explanatory diagram showing an example of services provided to the user by the mobile phone system.

FIG. 36 is an explanatory diagram showing an example of services provided to the user by the mobile phone system.

FIG. 37 is an explanatory diagram showing an example of services provided to the user by the mobile phone system.

[Explanation of symbols]

1 Mobile Phone (PS) 2 Wireless Base Station (BS) 3 Base Station Controller (BSC) 4 Subscriber Switch (LS) 6, 9 Common Line 7 Service Point (NSP) 8 Network Center 61 SLT 2980 Network Xer-bis support point (N
SSP)

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location H04Q 7/30 7/38 7/34 7605-5K H04Q 7/04 B (72) Inventor Shinichi Iwaki 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa, Ltd.Hitachi, Ltd. Information & Communication Division (72) Inventor Mitsuyoshi Hashida 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture, Hitachi, Ltd. Information & Communication Division (72) Invention Person Masao Waba, 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa, Ltd.Hitachi, Ltd., Information & Communications Division (72) Inventor Isao Shinbo 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa, Ltd., Hitachi, Ltd., Information & Communications Division ( 72) Inventor Mitsuhiro Wada 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefectural Information & Communication Division, Hitachi, Ltd. (72) Inventor Hiroshi Utaki 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Nagawa Prefecture Incorporated by Hitachi, Ltd., Information & Communication Division (72) Inventor Yoshihiro Kondo 216 Totsuka-cho, Totsuka-ku, Yokohama, Kanagawa Prefecture, Incorporated by Hitachi, Ltd. Information & Communications Division (72) Invention Yoshinobu Yamamoto, 4-6, Kanda Surugadai, Chiyoda-ku, Tokyo, Hitachi, Ltd. (72) Inventor, Chuetsu Shin, Tokyo, 1-280, Higashi Koikeku, Kokubunji, Tokyo, Central Research Laboratory, Hitachi, Ltd. (72) Inventor, Yumiko Watanabe, Tokyo Hitachi, Ltd. 4-6-6, Surugadai, Kanda, Chiyoda-ku (72) Inventor Koichi Ota, 216 Totsuka-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi, Ltd. Information & Communication Division (72) Hiroshi Kuwahara Minato-ku, Tokyo Toranomon 2-3-13 Kokusai Electric Co., Ltd.

Claims (5)

[Claims] 1. An exchange, a plurality of radio base stations installed for each region, which are connected to the exchange via a transmission line, and the radio base station and the radio transmission line which are determined according to their positions. Between a mobile phone to be connected, a specific radio base station among the plurality of radio base stations, and a test device connectable to any radio base station via a radio transmission path, and the test device. A test control device connected to the exchange, which instructs, via the exchange, any one radio base station other than the specific radio base station to relay a test call between the radio transmission line and the exchange. A mobile phone system comprising: 2. An exchange, a plurality of radio base stations installed for each region, which are connected to the exchange via a transmission line, the radio base station determined according to the position, and a plurality of radio base stations on the radio transmission line. A mobile phone connected to the wireless base station using a part of the channels, and a wireless base station attached to a specific wireless base station of the plurality of wireless base stations and connected to an arbitrary wireless base via a wireless transmission path. A test device connectable to a station and a relay between a specific channel on the wireless transmission path of the test call between the test device and the exchange, and any one wireless base station other than the specific wireless base station. In contrast to the above, the mobile phone system has a test control device connected to the exchange, which gives an instruction via the exchange. 3. An exchange, a plurality of radio base stations installed for each region, which are connected to the exchange via a transmission path, and a mobile station, which is connected to the exchange via a wireless transmission path. A mobile phone system comprising a wireless base station and a mobile phone connected to the wireless base station via a wireless transmission path. 4. A plurality of radio base stations installed for each area,
A mobile phone switch that connects to the wireless base station via a wireless transmission line, and a mobile phone switch that connects to the wireless base station via a transmission line and exchanges a call of the mobile phone according to the called number via the wireless base station. A mobile phone system having a function of exchanging a call originated by a predetermined called number to a plurality of mobile phones previously associated with the called number. 5. An exchange, a plurality of radio base stations installed for each area, which are connected to the exchange via a transmission line, and a mobile telephone exchange which is connected to the radio base station via a radio transmission line. A mobile phone system comprising: a mobile phone connected to the wireless base station; and a configuration management unit connected to an exchange for specifying a function to be used in each wireless base station online.