JP3260106B2 - PHS terminal - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mobile communication system, and more specifically, to a PHS (Personal Handy-Phone System).
m) etc.

[0002]

2. Description of the Related Art In a PHS service, unlike an ordinary portable telephone service, a private telephone system can be constructed in addition to communication with a public network. That is, the PHS terminal
In the outdoors, it can be used as a PHS terminal in the same way as a normal mobile phone. In addition, for example, in a general home or office, a base unit connected to a wired analog public network or digital public network is used as a self-managed base station, and its child device (cordless phone) is used. ) Can also be used. In addition, it can be used as a transceiver between two PHS terminals.

When a PHS terminal is used as a slave unit of a private base station, the PHS terminal used as a slave unit is used on the private base station side.
The terminal is registered, and the slave unit writes data (system call code, etc.) of the self-operating base station into an internal nonvolatile memory or the like. After performing predetermined registration for each of the private base station and the PHS terminal, when the PHS terminal catches the radio wave of the registered private base station, the PHS terminal compares the system call code broadcasted from the private base station, If the comparison results in a match, the mobile station is determined to be a connectable base station. As described above, within a range where the PHS terminal can catch the radio wave of the private base station, the PHS terminal functions as a slave unit of the private base station.

[0004]

However, such a PHS terminal in the prior art could register only one self-owned base station. Therefore, when another private base station that is not currently registered in the memory is used as the private base station of the PHS terminal, the registered data that has already been registered is deleted, and then the data of the private base station that the user wants to newly connect to is stored in the internal base station. Had to be written to non-volatile memory. Therefore, the PHS terminal can be connected to each branch of the same company,
For example, when the mobile station is used in the self-operated base stations installed in the branch A and the branch B, only one of the self-operated base stations can be registered. Therefore, the registration must be changed frequently.

As described above, in the conventional PHS terminal,
When newly registering the data of the self-operating base station, the currently registered data is overwritten. Therefore,
When connecting to a plurality of private base stations, each time the private base station changes, a predetermined registration operation has to be performed between the private base station and the PHS terminal.

An object of the present invention is to solve the problems of the prior art and to provide a PHS terminal that can be used as a slave unit of a plurality of self-operating base stations without changing registration .
You .

[0007]

According to the present invention, there is provided a PHS terminal capable of communicating with a base station of a public network and a base station connected to the public network. There is a storage means for storing a plurality of different registration data for each private base station for communicating with the private base station. Then, when the PHS terminal communicates with the own base station,
To receive data reported by the nearest self-managed base station.
This data is stored in the registered data stored in the storage means.
First, compare with the latest registered data to see if it matches.
If it matches, the other registration data stored in the storage means
Comparison of new registrations in order, starting with the new registration
If there is data, make this registration data the latest registration data
At the same time as the base station of this registration data
Selected as a self-managed base station .

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a PHS terminal according to the present invention;

Referring to FIG. 2, there is shown an example of a system configuration of an embodiment of a PHS terminal according to the present invention and a self-operating base station connectable to the PHS terminal as a slave unit. In FIG. 2, a public network 1 is an ISDN network or an analog network, and is connected to a private branch exchange (PBX) 5 or a subscriber terminal of a business office 3 or the like via a subscriber exchange (not shown). And PHS connection devices (not shown) connected to base stations 9-1 to 9-k, which are PHS public base stations.

In the office 3, a plurality of private base stations 7-1 to 7-n are accommodated in a private branch exchange 5, and each private base station 7 connects PHS terminals 10a to 10m as necessary to cordless phones (cordless phones). It is registered as. PHS terminal 1
Reference numeral 0 denotes a telephone showing an embodiment of the PHS terminal according to the present invention. That is, each of the PHS terminals 10a to 10m has a structure in which registration data (system call codes and the like) of a plurality of self-service base stations 7 can be written in an internal nonvolatile memory so that smooth communication can be performed in the business establishment 3-1. Has become. The PHS terminal 10 is also capable of communicating within the other office 3-2.
Further, when the PHS terminals 10a to 10m go out of the business office 3, the PHS terminals 10a to 10m are similarly connected to the base stations 9-1 to 9-
It is possible to connect to the public network 1 via k.

FIG. 3 is a functional block diagram showing an embodiment of the PHS terminal 10 shown in FIG. In FIG. 3, 1
1 is a microphone, 12 is a key input unit for inputting a telephone number or the like of a called terminal, 30 is a C for controlling the entire PHS terminal 10
PU (central processing unit), 14 is a display unit for displaying telephone numbers and the like, 15 is a sound source circuit unit for converting a digital audio signal into an analog audio signal, 16 is a speaker for converting an analog audio signal into audio, and 17 is a radio wave An antenna for radiating or receiving the signal, a high-frequency circuit section for generating a high-frequency signal modulated with transmission data or demodulating transmission data from the high-frequency signal, and a protocol control section for controlling a communication procedure and a data structure. .

The CPU 30 operates according to a program written in the ROM 30a. That is, when connecting to the desired private base station 9, the CPU 30 registers registration data such as a system call code that differs for each private base station 9 in the EPROM 30b, which is a nonvolatile memory,
The standby processing with the self-operated base station 9 registered in b is performed, and the nearest self-operated base station 9 is selected at any time.

FIG. 4 shows an example of registration data stored in the EPROM 30b. In the present embodiment,
A plurality of private base stations 9 can be stored in the registration areas 1 to n shown in FIG. In this example, the registered area is recorded in “storage location”, the system call code of each registered area is recorded in “information 1”, and the area information of each registered area is recorded in “information 2”.

If the power is on, the CPU 30
The system call code transmitted from the private base station and the registration data registered in the EPROM 30b are sequentially compared via the antenna 17, the high-frequency circuit unit 18 and the protocol control unit 19. As a result of the comparison, if a system call code of a private base station different from the currently set private base station is received, the private base station corresponding to this system code is selected as a new private base station, and the setting is updated. I do.

In FIG. 3, the ROM 30a and the EPROM
Although 30b is described inside the CPU 30, it is not particularly necessary to form them inside the CPU 30, and a ROM and an EPROM provided separately from the CPU may be used. In FIG. 3, E is used as a nonvolatile memory.
Although a PROM is used, a non-volatile memory other than the EPROM may be used, and a volatile memory may be used as long as it has a function of backing up data.

Next, the processing of the PHS terminal and the private base station in the present embodiment will be described with reference to flowcharts. Note that the processing flow used in the following description shows a schematic operation as a flow control diagram, and the actual processing inside the PHS terminal is executed by real-time, event control, and sequential processing.

Referring to FIG. 1, there is shown a processing flow for registering a private base station in a PHS terminal. When registering a self-operated base station, it is confirmed whether or not there is already registered data (S100). As a result, if there is no other registration data, the head of the registration data writing area (the registration area 1 shown in FIG. 4) is selected (S102). If there is already registered data, the pointer of the registered data writing area is updated (S104).

As a result, if there is a write area (S1)
06), the data such as the system call code of the private base station transmitted from the private base station to be registered
b (see FIG. 3) (S108), and confirms whether or not the registration has been normally performed (S110). If the registration is not performed normally, the process S108 is repeated, and if the registration is performed normally, the registration process ends (S114). In addition, processing S10
If the writing area is full and writing cannot be performed in step 6, the display area 1 shown in FIG.
4 (S112), and ends the registration process (S11).
4).

FIG. 5 shows a processing flow for sequentially updating connectable private base stations by receiving a system call code transmitted from the private base station. This process is performed at a predetermined cycle while the power of the PHS terminal is turned on. When the system call code is received from the private base station, the received content of the private base station corresponding to the received system call code is referred to (S120). Next, reference is made to the registration data of the previously registered self-operating base station which is currently set as the self-operating base station to be connected (S12).
2).

Then, it is determined whether or not the self-service base station of the received system call code is the same as the self-service base station registered immediately before (S124). This is set (S126), and the search processing for the self-operating base station is terminated (S130). Processing S
If it is determined that they are not the same in 124, the data of the next own base station registered in the registration data area is referred to (S128). As a result, if there is registered data to be referred to, in step S124, the private base station corresponding to the registered data is compared with the private base station of the received system call code to determine whether or not they are the same. If the self-operating base station of the registration data referred to in step S128 is the same as the self-operating base station of the received system call code, the self-operating base station is set as a connecting self-operating base station in step S126.

Process S124 → Process S128 → Process S13
As a result of repeating step 2, if there is no registered data corresponding to the self-service base station of the received system call code, the processing shifts to out-of-service processing (S134). As a result, the PHS terminal does not function as a slave unit of the own base station, but functions as a PHS terminal.

FIG. 6 is a processing flow of a standby process of the self-operating base station in the PHS terminal. The PHS terminal according to the present embodiment can register a plurality of private base stations as described above. Therefore, the PHS terminal constantly monitors which area in the registered private base station is currently located at a fixed cycle, and the PHS terminal can perform a smooth calling process through the nearest private base station. The standby process is performed as follows.

If the PHS terminal is powered on, the PHS terminal searches the registered data for a private base station that matches the received private base station broadcast information (such as a system call code). The broadcast information of the corresponding self-operating base station is acquired, and the process proceeds to a standby process (S140). Thereafter, when the PHS terminal moves and is out of the service area of the self-operating base station currently performing the standby process (S142), the broadcast information transmitted from the self-operating base station is monitored (S1).
44), a search for a self-operated base station is performed again (S146). Then, the process transits to another task of the standby process, that is, the standby process of the newly selected self-operating base station (S14).
8).

As described above, when the PHS terminal functions as a slave unit of the private base station, the transmission is performed via the private base station selected by the standby processing in the transmission processing as described above. On the other hand, when a PHS terminal functioning as a slave unit is called via a public line, for example, if a slave unit number corresponding to a sub-address is assigned to each PHS terminal, the number of the station line to which the own base station is connected is set. By adding a sub address to the number, it is possible to directly call a desired PHS terminal.

In the present embodiment, the self-operated base station can limit the use period and use form of the PHS terminal registered as a slave unit. In other words, in the present embodiment, when the PHS terminal is registered as a slave unit for the first time, information such as whether to continue using the terminal is entered as a process on the self-operating base station side. It can be used immediately when it enters the usable range (the range where the radio wave of the self-operated base station can be received). In addition, by setting a usage period limit (prohibiting calling for one week or one month) in the self-operated base station, it is possible to easily and effectively manage the child device including prevention of unauthorized use. . Hereinafter, the registration process of the PHS terminal in the private base station will be described with reference to FIG.

When registering a PHS terminal as a slave unit in the self-managed base station, it is first determined whether registration conditions exist (S15).
0). If there is no particular registration condition, a setting without registration restriction is made (S156), and if there is a registration condition, its contents, for example, a use period and a use form (such as transmission restriction) are set (S1).
52), the set registration restriction is stored (S154). Next, the self-managed base station registration process is started (S158), and if the registration is successful (S160), the registration ends (S16).
4). If the registration is not successful (S160), the registration restriction stored in step S154 is discarded, if any, and the current state is maintained if there is no registration restriction in step S156 (S16).
2), the registration process ends (S164).

FIG. 8 shows a processing flow for deleting the registration of a PHS terminal registered as a slave unit in the self-operated base station. When performing registration deletion, it is first checked whether the registration deletion is due to the limitation of the usage period set in the PHS terminal (S
170), if it is due to the limitation of the use period, the PH
The unique information and restriction of the S terminal are deleted (S172), and the registration deletion is terminated (S174). If it is not due to the limitation of the use period, the registration deletion processing is terminated as it is (S174).

FIG. 9 is an operation flow showing the processing on the self-operating base station side when an operation for calling an outside line is performed from a PHS terminal registered as a slave unit. When the self-operating base station receives a request for an outgoing line from the PHS terminal,
The registered contents of the S terminal are searched (S180). If non-permission of outside line transmission is set for this PHS terminal (S182), a call setting rejection flag at the time of outside line transmission is set (S184), and the processing of the usage pattern ends (S18).
8). On the other hand, if no outgoing call is set to the PHS terminal (S182), the call setting rejection flag for outgoing call is cleared (S186), and the process of the usage pattern ends (S188). If the call setting rejection flag for outgoing line is set in step S184, the PHS terminal that requested outgoing line cannot make outgoing line. If the call setting rejection flag for outgoing line is cleared in step S186, An external line can be transmitted from the PHS terminal that has requested the external line transmission.

Although one embodiment of the present invention has been described above, the present invention is not particularly limited to this. That is, in the present embodiment, an example has been shown in which the PHS terminal automatically selects the self-operating base station to be accessed from the registered self-operating base stations. However, for example, the self-operating base station registered in the key input unit shown in FIG. A selection key for selecting a station may be provided, and a self-operated base station may be selected by key operation. In this case, it is particularly effective for a small-scale self-owned base station system or a self-owned base station used at home. At home, a control method that enables direct communication between PHS terminals can be adopted.
It is also possible to switch the PHS terminal that has been waiting temporarily to the same own base station and realize a direct telephone call between the PHS terminals.

[0030]

As described above, since the PHS terminal according to the present invention can register a plurality of private base stations, there is no need to re-register each time the private base station changes. Therefore, the convenience in using the PHS terminal in a plurality of self-operating base stations is greatly improved. In particular, PHS terminals have the advantage that the coverage area of base stations is small, and thus have the advantage of low power consumption. However, even within the same premises, one self-owned base station cannot cover the area and a plurality of self-operated base stations May need to be installed. If the present invention is applied in such a case, the PHS terminal can be used as a slave unit in the same use range between different self-service base stations, so that the effect in such an application is particularly large.

[Brief description of the drawings]

FIG. 1 is a processing flow showing an embodiment when setting registration data of a private base station in a PHS terminal according to the present invention.

FIG. 2 is a system configuration diagram showing an example of a communication system to which the present invention is applied.

FIG. 3 is a functional block diagram showing an embodiment of a PHS terminal according to the present invention.

FIG. 4 is a diagram showing an example of registration data in a PHS terminal according to the present invention.

FIG. 5 is a processing flow showing an embodiment of a comparison process between the broadcast data transmitted from the private base station and the registration data of the private base station in the PHS terminal according to the present invention.

FIG. 6 is a process flow showing an embodiment of a standby process in a PHS terminal according to the present invention.

FIG. 7 is a processing flow showing an embodiment of registration processing of a PHS terminal to be registered as a slave in the self-operating base station according to the present invention.

FIG. 8 is a processing flow showing an embodiment of deleting a registration of a PHS terminal registered as a slave unit in the self-operating base station according to the present invention.

FIG. 9 is a processing flow showing an example of a case where a use mode is restricted for a PHS terminal registered as a child device in the self-operating base station according to the present invention.

[Description of Signs] 7-1 to 7-n Privately owned base stations 10a to 10m PHS terminal 30 CPU 30a ROM 30b EPROM

────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-7-75170 (JP, A) JP-A-8-172667 (JP, A) JP-A-2-1666928 (JP, A) JP-A-63-167 175532 (JP, A) JP-A-63-252032 (JP, A) JP-A-9-70070 (JP, A) JP-A-8-79829 (JP, A) JP-A-6-104827 (JP, A) (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q ^7/ 00-7/38 H04B ⁷ /24-7/26 102

Claims (1)

(57) [Claims] 1. A PHS terminal capable of communicating with any of a base station of a public network and a private base station connected to the public network, wherein the PHS terminal is different for each private base station for communicating with the private base station. It has storage means for storing a plurality of registration data, and when the PHS terminal communicates with the private base station, receives data reported by the nearest private base station.
And registration data that this data is stored in the storage means
Chi, compares whether to match the latest registered data, other entries stored in said storage means if a mismatch
The comparison with the data is performed sequentially from the new registration, and if there is matching registration data, this registration data is updated to the latest registration.
Recorded data and store this registered data
Option to select a base station as the nearest self-managed base station
PHS terminal, comprising the stages.