JPH07170559A - Portable telephone system - Google Patents

Abstract

PURPOSE:To allow the user to recognize the location of a radio base station and the use of the radio base station. CONSTITUTION:A radio base station serving a speech channel by a radio channel to each of plural portable telephone sets is installed in a public telephone box in relation with each portable telephone set and whose presence is easily recognized by the users. The radio base station is made up of a main body 3900 and an antenna 3902 and preferably with a display device by which the use state of speech channels of the radio base station is displayed visually externally.

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.

In such a mobile phone system,
In each area called a zone, a wireless base station that provides a wireless communication channel to a mobile phone located in the zone is arranged.

[0004]

However, it is expected that the radio base station cannot be arranged so as to cover the entire area at the stage of its introduction. For this reason, there are areas where the mobile phone can be used and areas where the mobile phone cannot be used. In this case, it is inconvenient for the user if the area in which the mobile phone can be used cannot be determined without making a call using the mobile phone.

Further, there is a physical limit to the number of radio channels provided by the radio base station to a mobile phone. For this reason,
Even if you are in an area where you can use a mobile phone, you may have to wait for the use. In this case, unlike the conventional public telephone, the user cannot grasp the usage status of the wireless base station of another user, that is, the current usage status of the wireless channel. For this reason, it is predicted that the user will not be able to predict how long the user will be able to use the mobile phone, and will feel uncomfortable. Also, if it can be predicted that the waiting time will be long, each user who will move to the zone of another wireless base station and uses the mobile phone will not be able to predict the waiting time. Concentration only on the station, it is expected that congestion will occur.

Therefore, it is an object of the present invention to provide a mobile phone system capable of showing a user the area where the mobile phone can be used.

It is another object of the present invention to provide a mobile phone system equipped with a radio base station capable of showing the usage status to the user.

[0008]

[Means for Solving the Problems] To achieve the above object,
The present invention provides an exchange, a plurality of radio base stations that are connected to the exchange via a transmission path and are installed in each area in a public telephone box, and the radio base station via a radio transmission path. Provided is a mobile phone system having a mobile phone connected to the mobile phone.

Further, the present invention has the following objects to attain the above objects.
An exchange, a plurality of radio base stations installed in each region that are connected to the exchange via a transmission line, and connected to the radio base station using a part of a plurality of channels on the radio transmission line The mobile phone system according to claim 1, wherein the wireless base station has a display for displaying the usage statuses of the plurality of channels so that the usage statuses of the plurality of channels can be recognized from the outside.

[0010]

According to the portable telephone system of the present invention, the wireless base station is installed in a public telephone box for each area. As a result, the user can recognize that a mobile phone can be used in the vicinity of the public telephone box, and the wireless base station can be installed by using the existing public telephone box without requiring any special facility. be able to. Here, since the existence of the public telephone box is easily recognized and it is closely related to the mobile telephone, it is easy for the user to recognize that the mobile telephone can be used in the vicinity of the public telephone box.

Further, according to the mobile phone system of the present invention, the radio base station displays the use statuses of the plurality of channels on the display provided so as to be recognizable from the outside. From this, the user can predict how long to wait before using the mobile phone.

[0012]

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

First, the configuration of the entire 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 portable 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. It should be noted that the overall configuration of the mobile phone 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 mobile phones Addressing temporary traffic concentration due to events such as the presence of localized high-traffic areas such as stations, bus terminals and downtown areas (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]

Now, in such a configuration, in order to perform call connection control (incoming call processing, etc.) for PS1, PS1
No. 1 needs to detect the current area in which it is located and perform registration (location registration) with the network. As previously mentioned,
In the present embodiment, since the unit of NRA is the unit of BS group, PS1 detects which BS2 group is in its area and registers the detected identification of the BS group in the network.

Here, such position registration can be performed by a method as shown in FIG.

In the present 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. For location registration, PS can be operated by the user's manual instruction.
The position is determined from the signal transmitted by the BS detected in the PS, and the BS is requested to register the determined position. Alternatively, the PS automatically requests the BS to register the determined position when the position determined from the signal transmitted by the BS detected in the PS indicates a change that requires change re-registration. .

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.

Next, as described above, in this embodiment, the LS
4 assumes an ISDN exchange. Therefore,
The interface between the LS4 and BSC3 is an ISDN-compliant I interface. Further, in order to adapt to this, in this embodiment, the BS 2 and the BSC 3 are also I interfaces.

From the viewpoint of effective use of the line, B
S is equipped with a converter of 32 kb / s ADPCM and 64 kb / s PCM, and P
The communication channel between S1 and BS is 32 kb / s ADPCM, and B
2B provided by the I interface between S2 and BSC3
Of the + D channels, the B channel is divided and used (32 kb
/ sADPCM x 2, 16 kb / sADPCM x 2 + 32 kb / sADPCM x 1
Etc.), and it is also possible to secure a communication channel of 2 lines or more between 2 and BSC3 by 2B + D.

Next, the protocol on the interface between such devices is as follows.

First, in FIG. 7, PS1-BS2, BS2-
The protocol based on between BSC3, BSC3-LS4, LS4-NSP7 is shown.

Next, the location registration sequence is shown in FIG. 8, the calling sequence is shown in FIG. 9, and the incoming call sequence is shown in FIG.
FIG. 11 shows a sequence for switching channels during a call, and FIG. 12 shows a sequence for ending / disconnecting a call.

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

Each BS manages the radio channel assigned to the PS and sequentially assigns the radio channel to the calling or receiving PS according to such a protocol. The management of such a wireless channel is described in the second-generation cordless telephone system standard, RCR-STD-28, etc. of the foundation, Radio System Development Center.

The form and mounting form of the BS 2 will be described below.

FIG. 13 shows a first form of BS2 according to this embodiment.

The illustrated BS2 is in the form of the BS2 attached to the wall surface of a building or the like, and the BS main body 3700 and the antenna 3701 are housed in a package 3703 having a waterproof property, a rod heat property, and a cold property.

FIG. 14 shows where the BS2 is attached, and both an installation a by itself and an installation b by a collective type are possible.

Next, FIG. 15 shows a second form of the BS 2 according to this embodiment.

The illustrated form is a form of the BS 2 for mounting the telephone box, and includes the antenna 3903 and the BS main body 3
Separately from 901, a waterproof, sticky heat, and cold protection
It is stored in cages 3900 and 3902. Especially BS
In order to make it easy for the user to recognize the installation of No. 2, the package 3902 for housing the antenna is a transparent dome type package. In addition, a transparent dome type package 3902 may be provided with a display or the like for displaying the state of the BS 2 and the like.

FIG. 16 shows a case where the BS2 is attached to a telephone box. When it is attached to a box-type telephone box, it is on the top surface, and when it is attached to an open-type telephone box, the main body side package 3900 is on the back surface. Is installed in. In either case, the package 3902 accommodating the antenna 3903 is installed on the upper surface so as to secure the wireless sensitivity and call the user's attention.

FIG. 17 shows a telephone box to which the BS2 is attached, and the upper portion of the telephone box is particularly colored to show that the BS is installed. Also, a sticker indicating that the BS is installed on the side surface.
Is pasted.

Now, a BS installed outdoors like this
For example, as shown in FIG. 18, it is preferable to intensively install in a place often used for waiting. As a result, the subscriber can perform communication in the same place as the ordinary telephone by PS1. Further, it is desirable to provide a BS for incoming calls only for waiters so that late calls to the waiters can be smoothly reported, especially in places where congestion is expected. Also, B
Since S2 prioritizes the incoming call to the manually registered subscriber, the incoming call to the waiting person can be prioritized.

Also, if a restaurant or the like is provided with a base unit with 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. In addition, as described above, the BS 2 can be installed using an existing telephone box or the like.

Incidentally, as shown in FIG. 19, it is preferable that the BS 2 installed outdoors displays the information so that the current usage status can be known. That is, the number of used channels, the number of free channels, etc. of the total number of wireless channels are displayed.

Further, the BS2 in the busy state is 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.

Further, this display device or a special display device may be used to provide an emergency display on the originating BS 2 when a police / fire service call is originated. As a result, it is possible to suppress the prank call 110 and improve security (the BS can be easily identified when the call is made to the site).

[0071]

As described above, according to the present invention, it is possible to provide a mobile phone system capable of showing the area where the mobile phone can be used to the user. Further, it is possible to provide a mobile phone system provided with a wireless base station capable of showing the usage status to the user.

[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 an explanatory diagram showing a protocol with which the mobile phone system complies.

FIG. 8 is a sequence diagram showing a location registration sequence of the mobile phone system.

FIG. 9 is a sequence diagram showing a calling sequence of the mobile phone system.
It is a Kens diagram.

FIG. 10 is a sequence diagram showing an incoming call sequence of the mobile phone system.

FIG. 11 is a sequence diagram showing a channel switching sequence of the mobile phone system.

FIG. 12 is a sequence diagram showing a termination sequence and a disconnection sequence of the mobile phone system.

FIG. 13 is an explanatory diagram showing a form of a wireless base station.

FIG. 14 is an explanatory diagram showing a mounting form of a wireless base station.

FIG. 15 is an explanatory diagram showing a form of a wireless base station.

FIG. 16 is an explanatory diagram showing a mounting form of a wireless base station.

FIG. 17 is an explanatory diagram showing a mounting form of a wireless base station.

FIG. 18 is an explanatory diagram showing a BS installed at a meeting place.

FIG. 19 is an explanatory diagram showing a display performed by the BS.

[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 (3)

[Claims] 1. A switch, a plurality of wireless base stations connected to the switch via a transmission line and installed in each area in a public telephone box, and the wireless base via a wireless transmission line. A mobile phone system having a mobile phone connected to a station. 2. An exchange, a plurality of radio base stations installed for each region, which are connected to the exchange via a transmission line, and a part of the plurality of channels on the radio transmission line. A mobile phone system comprising: a mobile phone connected to a radio base station, wherein the radio base station has a display for recognizing the usage status of the plurality of channels from the outside. 3. A network is provided to each mobile phone within a predetermined area.
A wireless base station that provides each of a plurality of communication channels provided on a wireless transmission path for connecting to a mobile phone or a mobile phone requested to connect in response to a request from the mobile phone or the network. A radio base station comprising: means for allocating a call channel, means for managing a call channel allocation status, and a display for displaying the call channel allocation status so that the call channel allocation status can be recognized from the outside.