JP2003169368A - W-CDMA digital mobile phone system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To significantly increase the number of mobile stations which can be accommodated per a single frequency. <P>SOLUTION: A control unit 113 of a parent station 110 has a function to accept in-area registration of mobile stations 121-12n transmitted from a base band signal processing part 112. The control unit 113 has a function to control a wired interface 111 at incoming from a public network 100 or outgoing to the public network 100, a function to control a radio interface 114 for frequency setting, etc., to assure a radio circuit between the parent station 110 and the mobile stations 121-12n, and a function to control the base band process part 112. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a W-CDMA digital mobile phone system.

[0002]

2. Description of the Related Art For example, in Japanese Unexamined Patent Publication No. 8-223626, there is a connection between a large number of mobile stations which are directly connected to a public line network without using a mobile communication exchange and accommodated by the TDMA system and the public line network. A digital mobile phone small base station that provides services such as telephone calls and extension calls between mobile stations is disclosed.

FIG. 12 is a block diagram showing the structure of a conventional small-sized base station for digital mobile phones. In FIG. 12, this digital mobile phone small base station 1200 includes a control unit 1203, a radio unit 1204, and a modulation / demodulation unit 1205.
, Time division multiplexing control unit 1206, line connection unit 1207
And a line connection control unit 1208 and a voice generation unit 1209.

The control unit 1203 controls each unit and realizes the function of the base station. The wireless unit 1204 includes a control unit 12
And mobile stations 1201 and 1202 located under the control of 03.
Transmission / reception is performed by the DMA method. The modulation / demodulation unit 1205 demodulates the received data from the radio unit 1204 under the control of the control unit 1203 and outputs the demodulated data to the time division multiplexing control unit 1206, and the transmission data from the time division multiplexing control unit 1206 is modulated to modulate the radio unit 1204. Supply to.

The time division multiplexing control unit 1206 includes a control unit 12
Under the control of 03, the time-division multiplexed data on the wireless line side demodulated by the modulation / demodulation unit 1205 is divided into slot data and output to the line connection unit 1207, and the transmission data input from the line connection unit 1207 is time-divided. Modulation and demodulation unit 12
Output to 05.

Under the control of the control unit 1203, the line connection unit 1207 outputs the voice data signal from the public network 1210 or the voice generation unit 1209 to the time division multiplexing control unit 1206, and the time division multiplexing control unit 1206 divides it. The data signal of the selected slot is output to the public network 1210. Under the control of the control unit 1203, the line connection control unit 1208 performs a slot connection command from the line connection unit 1207 to the public network 1210 and connection management. The voice generation unit 1209 is the control unit 1
Under the control of 203, the call voice to the user is output to the line connection unit 1207 when the preset call condition is satisfied.

[0007]

However, since the PDC system adopted in the TDMA system is time division multiplex communication of 3 or 6 slots, there is a limit to the number of mobile stations that can talk at once. Therefore, in a TDMA system,
The number of mobile stations accommodated in one frequency is about several, and it is difficult to increase the number.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a W-CDMA digital portable telephone system capable of remarkably increasing the number of mobile stations that can be accommodated per frequency. .

[0009]

A W-CDMA digital portable telephone system of the present invention comprises a W-CDMA mobile station,
It is connected to a public telephone network and manages the location of the existing W-CDMA mobile station, and provides a communication service between the W-CDMA mobile station and a fixed telephone in the public telephone network and a communication service between the mobile stations. And a W-CDMA master station.

According to this structure, it is possible to provide the communication service between the mobile station and the fixed telephone in the W-CDMA digital portable telephone system, and also provide the communication service between the mobile stations in the master station. It can accommodate multiple simultaneous communication states between stations.

The W-CDMA digital portable telephone system of the present invention comprises a master station control device having means for collectively controlling a plurality of the W-CDMA master stations and means for performing radio management of the system. Adopt the configuration

According to this structure, the number of mobile stations accommodated in the system can be increased by including the control means for controlling the W-CDMA master station and the means for radio management of the system.

The W-CDMA digital portable telephone system of the present invention comprises a parent having means for collectively controlling a plurality of the W-CDMA parent stations and means for managing movement of mobile stations existing in the system. A configuration including a station control device is adopted.

According to this configuration, by providing the control means for controlling the W-CDMA master station and the means for managing the movement of the mobile station existing in the system, handover between a plurality of master stations is realized, The communication service area can be expanded.

In the W-CDMA digital portable telephone system of the present invention, the plurality of W-CDMA master stations are provided with a device timing synchronizing means.

According to this structure, by providing the device timing synchronizing means of the plurality of master stations, the handover operation between the plurality of master stations can be simplified.

In the W-CDMA digital portable telephone system of the present invention, the plurality of W-CDMA master stations are provided with an absolute time notification signal receiving means as a part of the device timing synchronizing means.

According to this structure, the same timing signal can be reproduced between the devices by including the receiving means for the absolute time notification signal such as GPS.

In the W-CDMA digital mobile phone system according to the present invention, the master station control device includes the plurality of W-CDs.
A means for delivering a timing signal for synchronization to the MA master station is adopted.

According to this structure, the plurality of W-CDMA master stations can synchronize with each other by receiving the same timing signal for synchronization from the master station control device.

In the W-CDMA digital portable telephone system of the present invention, the W-CDMA master station examines the state of the surrounding mobile communication network at the time of starting up the device and autonomously determines the radio parameter of the own station. A configuration including a receiving unit is adopted.

With this configuration, it is possible to autonomously determine the wireless parameter of the own station by checking the state of the surrounding mobile communication network when the device is started up.

In the W-CDMA digital portable telephone system of the present invention, whether the W-CDMA mobile station operates in a public mobile communication network or operates in the W-CDMA master station. An operation mode determining means for determining an operation mode as to whether or not both sides are simultaneously waiting is adopted.

According to this structure, the W-CDMA mobile station is provided with the operation mode judging means so that the W-CDMA mobile station operates in the public mobile communication network or operates in the W-CDMA master station. It is possible to determine the operation mode of whether or not to perform simultaneous standby for both.

In the W-CDMA digital mobile phone system of the present invention, the W-CDMA master station extracts the system clock of the public mobile communication network from the output of the downlink signal receiving means and the operating clock of its own station. And a means for following the extracted clock.

According to this structure, it is possible to secure the frequency stability of the master station with inexpensive parts.

In the W-CDMA digital mobile phone system of the present invention, the W-CDMA master station comprises a digital signal interface means.

According to this structure, it is possible to accommodate a plurality of simultaneous calls and to provide a high speed service.

The W-CDMA digital portable telephone system of the present invention is self-sustaining without being connected to the W-CDMA mobile station and the public telephone network, manages the location of the W-CDMA mobile station, and moves to the W-CDMA mobile station. And a W-CDMA master station that provides communication services between stations.

With this configuration, it is possible to provide a communication service between a plurality of mobile stations within the master station.

The W-CDMA digital portable telephone system of the present invention comprises a master station control device having means for collectively controlling a plurality of the W-CDMA master stations and means for performing radio management of the system. Adopt the configuration

With this configuration, the number of mobile stations accommodated in the system can be increased.

The W-CDMA digital portable telephone system of the present invention comprises a parent having means for collectively controlling a plurality of the W-CDMA parent stations and means for managing movement of mobile stations existing in the system. A configuration including a station control device is adopted.

With this configuration, it is possible to realize a handover between a plurality of master stations.

In the W-CDMA digital mobile phone system of the present invention, the plurality of W-CDMA master stations are provided with a device timing synchronizing means.

With this configuration, the handover operation between a plurality of master stations can be simplified.

In the W-CDMA digital portable telephone system of the present invention, the plurality of W-CDMA master stations are provided with an absolute time notification signal receiving means as a part of the device timing synchronizing means.

According to this structure, the same timing signal can be reproduced between the devices by including the absolute time notification signal receiving means such as GPS.

In the W-CDMA digital portable telephone system of the present invention, the master station control device is the plurality of W-CDs.
A means for delivering a timing signal for synchronization to the MA master station is adopted.

According to this structure, the plurality of W-CDMA master stations can synchronize with each other by receiving the same timing signal for synchronization from the master station control device.

In the W-CDMA digital portable telephone system of the present invention, the W-CDMA master station examines the state of the surrounding mobile communication network at the time of starting the device and autonomously determines the radio parameter of the own station. A configuration including a receiving unit is adopted.

With this configuration, it is possible to autonomously determine the wireless parameter of the own station by checking the state of the surrounding mobile communication network when the device is started up.

In the W-CDMA digital portable telephone system of the present invention, the W-CDMA master station extracts the system clock of the public mobile communication network from the output of the downlink signal receiving means and the operating clock of the own station. And a means for following the extracted clock.

According to this structure, it is possible to secure the frequency stability of the master station with inexpensive parts.

[0045]

BEST MODE FOR CARRYING OUT THE INVENTION The essence of the present invention is that W-CDMA in which a base station is directly connected to a public network without using a mobile station switch.
It is to realize a digital mobile phone system.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a W-CDMA digital mobile phone system according to Embodiment 1 of the present invention.

The W-CDMA digital mobile phone system shown in FIG. 1 has a master station 11 directly connected to a public network 100.
0 and a plurality of mobile stations 121 wirelessly connected to the master station 110.
.About.12n.

The master station 110 has a wired interface section 11
1, a baseband processing unit 112, a control unit 113,
The wireless interface unit 114 is provided.

The control unit 113 has a function of accepting the registration of the location of the mobile stations 121 to 12n sent from the baseband signal processing unit 112. Also, the control function of the wired interface unit 111 when receiving an incoming call from the public network 100 and making an outgoing call to the public network 100, the master station 110, and the mobile stations 121 to 12 are used.
It has a control function of the wireless interface unit 114 such as a frequency setting for securing a wireless line with n, and a control function of the baseband processing unit 112.

The wired interface unit 111 is used for the public network 1
The public network 10 having an electrical interface function with 00
The digital signal is exchanged between 0 and the baseband processing unit 112.

The baseband processing unit 112 has a code processing function (spreading / multiplexing, for each channel) peculiar to the W-CDMA signal exchanged with the radio interface unit 114.
Rake reception), an error correction function for controlling an error in a wireless section, and a conversion function of a user signal exchanged with the wired interface unit 111.

The radio interface section 114 has a function of modulating the transmission signal processed by the baseband processing section 112, converting it into a radio frequency signal for radio transmission, and the mobile station 1.
It has a function of frequency-converting the received signals from 21 to 12n to generate a signal in the baseband band and outputting the signal to the baseband processing unit 112.

Next, the operation of the W-CDMA digital mobile phone system having the above configuration will be described in detail.

First, in the master station 110, the control unit 113 sets a channel in the baseband processing unit 112 in order to send out a common channel that enables a mobile station to be present when the device is started up. Wireless interface unit 11
Wireless setting to 4. When the mobile stations 121 to 12n receive and recognize this common channel, the mobile stations 121 to 12n exchange information with the master station 110, and register in the master station 110.
In the master station 110, the location information of the mobile stations 121 to 12n is held in the control unit 113.

In this state, when an incoming call arrives from the public network 100 to the mobile station 121 in the area,
The following operation is performed. The wired interface unit 111 detects a call from the public network 100, and the control unit 11
Notify 3. The control unit 113 performs call control with the public network 100, and the mobile station 1 controls the baseband processing unit 112.
Set the channel to call 21. The baseband processing unit 112 performs encoding and decoding, transmits / receives signals to / from the mobile station 121 via the wireless interface unit 114, and performs line setting. As a result, the public network 100
And the mobile station 121 are connected via the master station 110, and the public network 100 and the mobile station 121 can communicate with each other.

When the mobile station 121 makes a call, the call signal from the mobile station 121 is transmitted by the radio interface unit 1.
14, the control unit 113 via the baseband processing unit 112
Is notified, and control is performed by the control unit 113 so that a wireless line is secured. After that, the control unit 113 makes a call to the public network 100 via the wired interface unit 111 to secure a wired line with the public network 100. When the wired line with the public network 100 is secured, the mobile station 121 and the public network 100 can communicate with each other by connecting with the wireless line.
In this way, it is possible to make and receive calls between the mobile station and the public network 100 via the master station 110.

Further, the mobile station 122 registered in the area
Mobile stations up to 12n can perform extension communication between mobile stations while the public network 100 is used. An operation in which, for example, the mobile station 122 and the mobile station 12k perform extension communication while the mobile station 121 is communicating with the public network 100 will be described.

A transmission signal from the mobile station 122 is notified to the control unit 113 via the radio interface unit 114 and the baseband processing unit 112, and the control unit 113 controls the radio line to be secured. After that, when the control unit 113 recognizes that the calling party of the mobile station 122 is the mobile station 12k that has already registered in the area, the control unit 113 then activates the process of calling the mobile station 12k, and Set the channel. Baseband processing unit 112
Performs coding, transmits / receives signals to / from the mobile station 12k via the wireless interface unit 114, and performs line setting. As a result, the lines of the mobile station 122 and the mobile station 12k are connected in the baseband processing unit 112, and communication is possible.

Here, in the case of W-CDMA, TDMA
Unlike the above case, by changing the spreading code for each channel, many resources can be secured at the same frequency. For example, when a transmission rate on a wireless line with a spreading factor of 64 is used, up to 64 types of code resources can be used. Therefore, according to the first embodiment, communication between a plurality of mobile stations can be performed simultaneously.

(Second Embodiment) FIG. 2 is a block diagram showing the configuration of a master station in a W-CDMA digital mobile phone system according to a second embodiment of the present invention. Note that, in FIG. 2, elements that are the same as in the configuration shown in FIG. 1 are assigned the same reference numerals.

In FIG. 2, the wireless interface unit 11
Reference numeral 4 denotes a downlink signal transmission unit 141 for mobile stations, an uplink signal reception unit 142 from mobile stations, and an antenna interface unit 143 for realizing a transmission / reception diversity configuration.
And a downlink signal receiving unit 144.

Next, the operation of the master station having the above configuration will be described. In the master station 110, when the device is started up, the control unit 113 sends out a common channel that allows the mobile station to be in the service area. In order to identify the frequency used by another cellular base station and the code type for cell discrimination, the downlink signal receiving section 1 in the wireless interface section 114 is identified.
For 44, the frequency of the downlink signal is set. The control unit 113 also gives a code search instruction to the baseband processing unit 112 to identify it.

With this, since the state of the surrounding mobile communication network can be checked when the apparatus is started up, it becomes possible to autonomously determine the wireless parameter of the own station, and it is possible to perform reliable and high quality without interference. It is possible to provide various services.

(Third Embodiment) FIG. 3 is a block diagram showing a configuration of a mobile station in a W-CDMA digital mobile phone system according to a third embodiment of the present invention.

The mobile stations 121 to 12n shown in FIG. 1 have the same configuration, and the mobile station 121 representatively shown has a radio interface section 301 and a baseband processing section 302 as shown in FIG. A control unit 303 and an operation mode storage unit 304 are provided. The control unit 303 determines whether the mobile station 121 operates in a cellular mobile communication network, operates in the master station, or waits for both sides simultaneously. Use to judge.

With the above configuration, the mobile station can be provided with the communication services for both the communication in the mobile communication network and the communication between the master stations.

(Embodiment 4) FIG. 4 is a block diagram showing the configuration of a W-CDMA digital portable telephone system according to Embodiment 4 of the present invention.

In the W-CDMA digital mobile phone system shown in FIG. 4, a plurality of master stations 401 to 40m are connected to the public network 100 via a master station control device 410. Here, the master stations 401 to 40m are the master stations 110 shown in FIG.
It has almost the same configuration as. The master station control device 410 includes a wired interface unit 411, a master station control unit 412, and a wireless management unit 413.

User signals from the master stations 401 to 40m are connected to the public network 100 via the wired interface unit 411. In addition, the master station control unit 412 collectively manages the wireless parameters (frequency, used code type, etc.) managed by the standalone master station 110, and the user signals of the master stations 401 to 40m are managed by the master station controller. 412 is set and processed in accordance with an instruction. The wireless management unit 413 determines and stores the reported values of wireless parameters from each master station and the instructed setting values.

Next, the operation of the W-CDMA digital mobile phone system having the above configuration will be described.

Each of the master stations 401 to 40m sends out a common channel that allows the mobile station to be in the area when the device is started up. To send it to another master station, or
The control unit 113 sets the frequency of the downlink signal in order to identify the frequency used by another cellular base station and the code type for cell discrimination. The control unit 113 also gives a code search instruction to the baseband processing unit 112 to identify it.

The master stations 401 to 40m notify the master station controller 410 of the downlink signal status. Master station control device 41
At 0, the wireless conditions from the respective master stations are aggregated, and the wireless parameters such as the frequency and the code type set in each master station are set.

As described above, since the master station control device 410 centrally manages a plurality of master stations 401 to 40m, interference between the master stations in the system and interference with the cellular system is prevented from the mobile communication network. Can be prevented autonomously without control of. Therefore, the accommodation of mobile stations can be increased by increasing the number of master stations, and a stable extension communication service can be provided.

(Fifth Embodiment) FIG. 5 is a block diagram showing the configuration of a W-CDMA digital portable telephone system according to the fifth embodiment of the present invention. In FIG. 5, the master station control device 500 is provided with a mobility management unit 504 in the master station control device 410 shown in FIG. Others are the same as the configuration shown in FIG.

In FIG. 5, the mobility management unit 504 has information about which mobile station is located in each parent station, and a handover procedure for changing the parent station of the connection destination while the mobile station moves. Take control.

Next, the operation of the W-CDMA digital mobile phone system having the above configuration will be described.

It is assumed that the mobile station 121 is in a call state while making a call while the mobile station 121 has registered in the master station 401. In this state, in order to continue the communication even if the mobile station 121 moves, the connected master station must be changed.

First, when the mobile station 121 moves to the edge of the area of the master station 401, the master station 402 can also receive at the same time. The state is the master station control device 5 via the master station 401.
Movement management unit 5 connected to the master station control unit 412 of 00
04 will be notified. In the mobility management unit 504, the mobile station 12
It recognizes that 1 is in the area transition state, and sets the channel for the master station 402 in order to set the diversity state for the master station 402.

Next, the mobile station 121 shifts from the communication state of the two branches to the communication state of only the signal of the master station 402 by further moving. The mobility management unit 504 determines that the area transfer is completed based on the state of the line with the master station 401, releases the channel setting to the master station 401, and performs control such that resources are distributed.

By the operation of the mobility management unit 504 as described above, the mobile station accommodated in the system repeatedly hands over the update of the master station staying in the mobile station and the update of the communicating master station. Therefore, it is possible to provide a wide service area.

(Embodiment 6) FIG. 6 is a block diagram showing the configuration of a master station in a W-CDMA digital mobile phone system according to Embodiment 6 of the present invention.

In FIG. 6, master station 600 is connected to master station controller 410 shown in the fourth embodiment or master station controller 500 shown in the fifth embodiment. As shown in FIG. 6, the master station 600 includes the master station inter-timing timing synchronization unit 601 and the master station device timing synchronization unit 601 in the configuration of the master station 110 shown in FIG. In addition, an in-device timing control unit 602 that generates and controls a necessary timing signal in the device is added.

Next, the operation of the W-CDMA digital mobile phone system having the above configuration will be described.

In order to perform the handover, the mobility management unit 504 shown in FIG. 5 recognizes that the mobile station 121 is in the area transition state, and sets the master station 402 to the diversity state with respect to the master station 402. The additional channel setting is performed for, but at this time, the frame offset timing of the channel is also set.

As a result, with respect to the system timing between the master stations, if the synchronization in frame units is secured, the frame timing may be set at the same timing as the connection source. Part 50
Management in 4 is easy.

When synchronization is not secured between the master stations,
The shift management unit 504 recognizes the shift amount and corrects it when setting the additional connection destination, or the mobile station measures the timing of the additional connection destination with respect to the connection source, and the result is used as control information via the master station. A function of notifying the mobile management unit 504 of the master station control device 410 is required, and complicated control is required. However, according to the sixth embodiment, such a situation can be avoided.

Therefore, according to the sixth embodiment, the overhead processing in the handover can be reduced, so that the system capable of performing the handover with simple control can be realized.

(Embodiment 7) FIG. 7 is a block diagram showing the configuration of a master station in a W-CDMA digital mobile phone system according to Embodiment 7 of the present invention.

As shown in FIG. 7, the master station 700 is provided with an inter-master station apparatus timing synchronization section 701 in place of the master station apparatus timing synchronization section 601 in the configuration of the master station 600 shown in FIG. ing.

The master station device timing synchronization section 701 is
The PS receiver 711 and the timing extractor 712 are provided. The GPS reception unit 711 outputs the received absolute time notification signal to the timing extraction unit 712. The timing extraction unit 712 generates a timing signal from the input absolute time notification signal. In-apparatus timing control unit 602
Generates and controls a timing signal required in the device based on the signal generated by the timing extraction unit 712.

Since each master station can synchronize at the same device timing by extracting the absolute time from the same GPS signal, the overhead processing in handover can be reduced and handover can be performed with simple control. Can be realized.

(Embodiment 8) FIG. 8 is a block diagram showing the configuration of a master station in a W-CDMA digital mobile phone system according to Embodiment 8 of the present invention.

As shown in FIG. 8, the master station 60 shown in FIG.
In the configuration of 0, the inter-master station apparatus timing synchronization section 601 is provided in place of the inter-master station apparatus timing synchronization section 601. The inter-master station timing synchronization unit 801 includes a timing extraction unit 712 and extracts a timing signal from a signal input from the outside. The in-device timing control unit 602 generates and controls a timing signal required in the device based on the signal generated by the timing extraction unit 712.

Accordingly, a master station control device 810 is provided in place of the master station control device 410 or the master station control device 500. The master station control device 810 is provided with an inter-master station timing signal generation unit 811 and supplies a timing signal to the timing extraction unit 712 of the master station 800.

That is, the plurality of master stations 800 receive the same timing signal distribution from the master-station synchronization timing signal generation section 811 provided in the master station control device 810, and the timing extraction section 712 receives the same contents. The timing reproduction is performed, and the in-apparatus timing control unit 602 generates and controls a timing signal required in the apparatus based on the timing of the same content.

Therefore, since the device timings can be synchronized in a plurality of master stations, the overhead processing in the handover can be reduced, and a system can be realized in which the handover can be performed by simple control.

(Ninth Embodiment) FIG. 9 is a block diagram showing the configuration of a master station in a W-CDMA digital mobile phone system according to a ninth embodiment of the present invention.

As shown in FIG. 9, the master station 900 is the same as the master station 110 shown in FIG. 2 except that it has a system clock extraction section 901 and an in-apparatus system clock generation section 902.
And a frequency oscillator 903 are additionally provided, and the device timing control unit 602 shown in FIGS. 6 to 8 is further provided.

Next, the operation of the W-CDMA digital mobile phone system having the above configuration will be described.

The master station 900 has a radio interface section 11
By providing the downlink signal receiving unit 144 of the mobile communication network in the vicinity within 4, it is possible to receive and demodulate highly stable radio waves. The system clock extraction unit 901 extracts and reproduces a symbol clock or a chip clock from the signal demodulated by the downlink signal reception unit 144. The in-apparatus system clock generation unit 902 causes the output from the frequency oscillator 903 used in the master station 900 to follow the clock reproduced by the system clock extraction unit 901. The in-device timing control unit 602 generates and controls a timing signal required in the device based on the clock output from the system clock generation unit 902.

As described above, since the highly stable system clock of the mobile communication network is extracted and the device operation is made to follow it, the master station also operates with the highly stable clock without using an expensive frequency oscillator. It is possible to provide high quality communication service.

(Embodiment 10) FIG. 10 is a block diagram showing the configuration of a master station in a W-CDMA digital portable telephone system according to Embodiment 10 of the present invention.

As shown in FIG. 10, the master station 1000 is provided with an ISDN interface section 1001 as a digital signal interface instead of the wired interface section 111 in the configuration of the master station 110 shown in FIG.

By providing the ISDN interface section 1001, it is possible to accommodate a plurality of calls at the same time in this system even if the public network is connected to one line, and it is possible to provide a high speed service at the same time.

(Embodiment 11) FIG. 11 is a block diagram showing the structure of a W-CDMA digital portable telephone system according to Embodiment 11 of the present invention.

As shown in FIG. 11, in the parent station 1100, the wired interface section 111 is deleted from the configuration of the parent station 110 shown in FIG. That is, the W-CDMA digital mobile phone system according to the eleventh embodiment is composed of a master station and a mobile station which are not connected to the public network.

In the eleventh embodiment, a service equivalent to extension communication of a plurality of mobile stations in the master station can be provided without connecting to the public network. At this time, if the master station control device as in the fourth embodiment is provided, the number of mobile stations accommodated can be increased. Further, if the master station control device as in the fifth embodiment is provided, handover between a plurality of master stations can be realized.

[0109]

As described above, according to the present invention,
The number of mobile stations that can be accommodated per frequency can be significantly increased.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a W-CDMA digital mobile phone system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a master station in a W-CDMA digital mobile phone system according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a configuration of a mobile station in a W-CDMA digital mobile phone system according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a W-CDMA digital mobile phone system according to a fourth embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a W-CDMA digital mobile phone system according to a fifth embodiment of the present invention.

FIG. 6 is a block diagram showing a configuration of a master station in a W-CDMA digital mobile phone system according to a sixth embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a master station in a W-CDMA digital mobile phone system according to a seventh embodiment of the present invention.

FIG. 8 is a block diagram showing a configuration of a master station in a W-CDMA digital mobile phone system according to an eighth embodiment of the present invention.

FIG. 9 is a block diagram showing a configuration of a master station in a W-CDMA digital mobile phone system according to a ninth embodiment of the present invention.

FIG. 10 is a W-CDMA according to a tenth embodiment of the present invention.
Block diagram showing the configuration of a master station in a digital mobile phone system

FIG. 11 is a W-CDMA according to an eleventh embodiment of the present invention.
Block diagram showing the configuration of a digital mobile phone system

FIG. 12 is a block diagram showing a configuration of a conventional digital mobile phone small base station.

[Explanation of symbols]

100 public network 110, 401 to 40 m, 600, 700, 800, 9
00, 1000, 1100 Master station 111, 411 Wired interface section 112, 302 Baseband processing section 113, 303 Control section 114, 301 Wireless interface section 121-12n Mobile station 141 Downstream signal transmission section 142 Upstream signal reception section 143 Antenna interface section 144 downlink signal reception unit 304 operation mode storage unit 410, 500, 810 master station control device 412 master station control unit 413 radio management unit 504 mobility management unit 601, 701, 801 master station device timing synchronization unit 602 device internal timing control unit 711 GPS reception section 712 Timing extraction section 811 Master-to-base station synchronization timing signal generation section 901 System clock extraction section 902 In-apparatus system clock generation section 903 Frequency oscillator 1001 ISDN interface section

Claims (18)

[Claims] 1. A W-CDMA mobile station and a W-CDMA mobile station, which is connected to a public telephone network and located in the area, manages the location of the W-CDMA mobile station and a fixed telephone in the public telephone network. A W-CDMA digital mobile phone system, comprising: a W-CDMA master station that provides a communication service and a communication service between mobile stations. 2. The master station control device comprising: a unit for collectively controlling a plurality of the W-CDMA master stations and a unit for performing radio management of the system. W-CDMA digital mobile phone system. 3. A master station controller comprising means for collectively controlling a plurality of the W-CDMA master stations and means for managing movement of mobile stations existing in the system. The W-CDMA digital mobile phone system according to claim 1. 4. The W-CDMA digital portable telephone system according to claim 2, wherein the plurality of W-CDMA master stations are provided with device timing synchronizing means. 5. The W-CDMA digital apparatus according to claim 4, wherein the plurality of W-CDMA master stations are provided with an absolute time notification signal receiving means as a part of the device timing synchronizing means. Mobile phone system. 6. The master station control device is configured to control the plurality of W-Cs.
Means for delivering timing signals for synchronization to the DMA master station,
The W-CDMA digital mobile phone system according to claim 2 or 3, further comprising: 7. The W-CDMA master station comprises downlink signal receiving means for checking the state of a surrounding mobile communication network when the apparatus is started up and autonomously determining the radio parameters of the own station. The W-CDMA digital mobile phone system according to any one of claims 1 to 6. 8. An operation mode in which the W-CDMA mobile station operates in a public mobile communication network, operates in the W-CDMA master station, or simultaneously waits for both parties. The W-CDMA digital mobile phone system according to any one of claims 1 to 7, further comprising: an operation mode judging means for judging. 9. The W-CDMA master station comprises means for extracting the system clock of the public mobile communication network from the output of the downlink signal receiving means, and means for making the operating clock of the own station follow the extracted clock. The W-CDMA digital mobile phone system according to claim 7, further comprising: 10. The W-CDMA master station according to claim 1, wherein the W-CDMA master station comprises digital signal interface means.
Digital mobile phone system. 11. A W-CDMA mobile station, and a W-CDMA master station that is independent of a public telephone network and is self-sustaining and provides communication services between a plurality of the W-CDMA mobile stations. W-CDMA digital mobile phone system. 12. The master station control device comprising: a unit for collectively controlling a plurality of the W-CDMA master stations and a unit for performing radio management of the system. W-CDMA digital mobile phone system. 13. A master station control device comprising means for collectively controlling a plurality of the W-CDMA master stations and means for managing movement of mobile stations existing in the system. The W-CDMA digital mobile phone system according to claim 11. 14. The W-CDMA digital mobile phone system according to claim 12, wherein the plurality of W-CDMA master stations are provided with device timing synchronization means. 15. The plurality of W-CDMA master stations are provided with an absolute time notification signal receiving means as a part of the device timing synchronizing means.
The W-CDMA digital mobile phone system described. 16. The master station control device comprises the plurality of W-
14. The W-CDMA digital mobile phone system according to claim 12 or 13, further comprising: means for distributing a timing signal for synchronization to a CDMA master station. 17. The W-CDMA master station comprises downlink signal receiving means for checking the state of a surrounding mobile communication network when the apparatus is started up and autonomously determining the radio parameter of the own station. The W-CDMA digital mobile phone system according to any one of claims 11 to 16. 18. The W-CDMA master station comprises means for extracting the system clock of the public mobile communication network from the output of the downlink signal receiving means, and means for making the operating clock of the own station follow the extracted clock. The W-CDMA digital mobile phone system according to claim 17, further comprising: