JP2000138699A - Subscriber radio access network system and its control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subscriber radio access network system where a space for installation of a subscriber outdoor device is minimized even in the case of installing many subscriber indoor devices in a house with excellent outward appearance and reduced power consumption and to provide its control method. SOLUTION: The system is provided with a subscriber outdoor device 20 corresponding to a plurality of subscriber indoor devices 30-1-30-4 respectively installed at subscribers, the subscriber outdoor device 20 is used to terminate a radio access channel 21 with respect to an enterprise base station 10 and concentrates wired signals with respect to the subscriber indoor devices 30-1-30-4. Then a signal from the subscriber outdoor device 20 to the subscriber indoor devices is multiplexed by the time division multiplex system and broadcast to each subscriber indoor device. Signals sent from each subscriber indoor device to the subscriber outdoor device 20 are multiplexed and transmitted by the time division multiple access system and the demand assign multi-access system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a subscriber radio access network system using a radio signal for an access line between a subscriber and a business operator, and a control method therefor. A single subscriber outdoor unit is provided for each of the subscriber indoor units, an access line is terminated by the single subscriber outdoor unit, and a wired signal is transmitted to and from a plurality of indoor units. The present invention relates to a subscriber radio access network system and a control method thereof.

[0002]

2. Description of the Related Art Recently, a subscriber radio access network system using a radio signal for an access line between a subscriber and an operator has been proposed.

FIG. 9 is a system configuration diagram showing the overall configuration of a subscriber wireless access network system.

In FIG. 9, this subscriber radio access network system comprises a plurality of operator base stations 10-1 to 10-n installed on the operator side and a subscriber outdoor unit 20 installed on the subscriber side. Are connected by a wireless access line 21, and are connected to the operator base station 10-1.
10 to 10-n are connected to the operator network center 100 via the wired access lines 50-1 to 50-n.
And is connected to another network 200.

[0005] A subscriber indoor unit 30 is connected to the subscriber outdoor unit 20 installed on the subscriber side, and one or a plurality of subscriber terminals 40-1 to 40-4 are connected to the subscriber indoor unit 30.
0-m are connected.

In such a configuration, one or a plurality of subscriber terminals 40-1 to 40-1 connected to the subscriber indoor unit 30 are provided.
40-m is a subscriber indoor device 30, a subscriber outdoor device 2.
0, it is possible to connect to the operator network center 100 via the wireless access line 21, and to connect to another network 2 via the operator network center 100
00 to perform communication.

[0007]

In this type of subscriber wireless access network system, the outdoor subscriber unit 20 is provided one-to-one with respect to the indoor subscriber unit 30.
Connected to an apartment or large building
When a large number of indoor equipments are installed in a house, it is necessary to install a large number of outdoor equipments corresponding to the indoor equipments, so that a large space for installing the outdoor equipments is required. Required, and the installation of a large number of subscriber outdoor equipment may impair the aesthetics of this house,
Furthermore, there is a problem that a large power consumption is required to operate a large number of outdoor subscriber devices.

FIG. 10 is a diagram showing a state of installation of a subscriber outdoor device when a plurality of subscriber indoor devices are installed in one house.

FIG. 10 shows a case where four subscriber indoor units 30-1 to 30-4 are installed in one house 400. In this case, four subscriber indoor units 30- are installed.
Four subscriber outdoor units 20-1 to 20-4 are connected to each of 1 to 30-4 in a one-to-one correspondence.

Here, the subscriber outdoor units 20-1 to 20-
4 is an operator base station 10 installed on each operator side
Wireless access lines 21-1, 21-2, 21-3, 2
1-4, the operator base station 10 is connected to the operator network center 100 shown in FIG.

According to such a configuration, this house 400
Has four outdoor subscriber devices 20-1 to 20-4 outdoors.
Therefore, it is necessary to secure a space for installing the four subscriber outdoor devices 20-1 to 20-4, and also to install the four subscriber outdoor devices 20-1 to 20-4.
It is conceivable that the installation of -1 to 20-4 impairs the aesthetics of the house 400, and furthermore, a large amount of power consumption for operating the four outdoor subscriber devices 20-1 to 20-4 is required. Problem.

Therefore, the present invention can minimize the space for installing outdoor equipment for subscribers even when a large number of indoor equipments are installed indoors, and are excellent in aesthetics and power consumption. It is an object of the present invention to provide a subscriber radio access network system that can be reduced in size and a control method thereof.

[0013]

To achieve the above object, according to the present invention, there is provided a subscriber radio access network system using radio signals for an access line between a subscriber and an operator. A plurality of subscriber indoor devices respectively installed on the subscriber side, and a wired signal between the plurality of subscriber indoor devices while terminating the access line provided corresponding to the plurality of subscriber indoor devices. And a subscriber outdoor device for concentrating lines.

According to a second aspect of the present invention, in the first aspect of the present invention, the plurality of subscriber indoor units are connected to a plurality of subscriber branch lines, respectively, and the outdoor subscriber unit is a subscriber. The plurality of branch lines and the subscriber line are connected to each other through a common connection line.

According to a third aspect of the present invention, in the first aspect of the present invention, signals transmitted from the outdoor unit to the plurality of indoor units are multiplexed by a time division multiplexing method. A signal broadcast-transmitted to each subscriber indoor device and transmitted from the subscriber indoor device to the subscriber outdoor device is transmitted by being multiplexed by a demand assignment multi-access method by a time division multiple access method. And

According to a fourth aspect of the present invention, in the first aspect of the present invention, collision avoidance for detecting a collision of a signal transmitted from the indoor subscriber unit to the outdoor subscriber unit and avoiding the collision is detected. It is characterized by further comprising means.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, the collision avoiding means detects a collision of a signal transmitted from the indoor subscriber unit to the outdoor subscriber unit. Means, and retransmission control means for retransmitting a signal related to the collision after different delay times have elapsed, when the collision is detected by the collision detection means.

According to a sixth aspect of the present invention, in the fourth aspect of the present invention, the collision detecting means is provided in each of the subscriber indoor units.

According to a seventh aspect of the present invention, in the fourth aspect of the present invention, the collision detecting means is provided on a common connection line connecting the indoor subscriber apparatus and the outdoor subscriber apparatus. Features.

The invention according to claim 8 is characterized in that, in the invention according to claim 4, the collision detection means is provided in an operator base station installed on the operator side.

According to a ninth aspect of the present invention, in the third aspect of the invention, the collision avoiding means detects a collision of a signal transmitted from the indoor subscriber unit to the outdoor subscriber unit. And a random number pattern transmitting means for transmitting a predetermined random number pattern instead of a signal relating to the collision when the collision is detected by the collision detecting means.

The invention described in claim 10 is the same as the ninth invention.
In the described invention, the collision avoiding means is provided between the indoor subscriber device and the outdoor subscriber device.

The invention according to claim 11 is the first invention.
In the invention described in the above, the subscriber is provided via a common connection line which is provided in one of the plurality of subscriber indoor devices and connects the subscriber indoor device and the subscriber outdoor device. Power supply means for supplying power to the outdoor device, and DC current cut means provided in another of the plurality of subscriber indoor devices for cutting a DC current from the common connection line. It is characterized by doing.

According to a twelfth aspect of the present invention, there is provided a method for controlling a subscriber radio access network system using a radio signal for an access line between a subscriber and a business operator, wherein the plurality of subscribers are respectively installed on the subscriber side. Providing one subscriber outdoor unit corresponding to the indoor unit, and terminating the access line by the outdoor unit and concentrating a wired signal between the plurality of indoor units. It is characterized by.

The invention of claim 13 is the first invention.
2. In the invention described in 2, the signal transmitted from the outdoor subscriber unit to the plurality of indoor indoor units is multiplexed by a time division multiplexing method and broadcast-transmitted to each indoor subscriber unit. It is characterized in that a signal transmitted to a subscriber outdoor unit is multiplexed and transmitted by a demand assignment multi-access method by a time division multiple access method.

The invention according to claim 14 is the first invention.
In the invention described in Item 2, when a signal transmitted from the indoor subscriber device to the outdoor subscriber device collides, signals related to the collision are retransmitted with different delay times.

The invention according to claim 15 is the first invention.
5. The invention according to claim 4, wherein the delay time is controlled at random in accordance with a random number generated in the indoor unit of the subscriber related to the collision.

[0028] Further, the invention described in claim 16 is based on claim 1.
In the invention described in Item 2, when a signal transmitted from the indoor subscriber device to the outdoor subscriber device collides, a predetermined random number pattern is transmitted instead of a signal related to the collision.

[0029] The invention according to claim 17 is based on claim 1.
3. In the invention described in 2, the subscriber outdoor unit is connected via a common connection line connecting one of the plurality of subscriber indoor units to the indoor unit and the outdoor unit. Power supply to other subscriber indoor units, and cuts direct current from the common connection line.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a subscriber radio access network system and a control method thereof according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing an embodiment of a main part of a subscriber radio access network system constituted by applying a subscriber radio access network system and a control method thereof according to the present invention.

In the embodiment shown in FIG. 1, four subscriber indoor units 30-1 to 30-4 are provided in one house 400.
Is shown.

In this case, in this embodiment, one subscriber outdoor device 20 is provided corresponding to the plurality of subscriber indoor devices 30-1 to 30-4 installed on the subscriber side, respectively. The outdoor subscriber unit 20 is configured to terminate the wireless access line 21 with the operator base station 10 and to concentrate the wired signals between the plurality of indoor subscriber units 30-1 to 30-4. You.

Here, the communication between the operator base station 10 and the subscriber outdoor unit 20 is a two-way communication in a millimeter wave band, and the TDM / TDMA system is adopted as the radio access system.

That is, transmission (downlink) of a signal from the operator base station 10 to the subscriber outdoor unit 20 is performed by TDM (Tim
e Division Multiplexer), and transmission (uplink) of a signal from the outdoor subscriber unit 20 to the operator base station 10 is performed by TDMA.
(Time Division Multiple Access)
nd Assin Multiple Access).

FIG. 2 is a diagram showing a state of connection between a subscriber indoor unit and a subscriber outdoor unit in the subscriber radio access network system of the present invention.

In the subscriber radio access network system of the present invention shown in FIG. 2, a subscriber branch is provided between n indoor subscriber units 30-1 to 30-n and one outdoor subscriber unit 20. Lines 31-1 to 31-n, common connection line 8
0, connected via the subscriber concentrator 22. The outdoor subscriber unit 20 terminates the wireless access line 21 with the operator base station 10 and transmits a wired signal to the plurality of indoor subscriber units 30-1 to 30-n. Concentrate via 22.

By the way, in the above configuration, since the down line for transmitting the signal from the operator base station 10 to the subscriber outdoor unit 20 is the broadcast (broadcast) communication as described above, the subscriber indoor unit 30- 1 to 30-n capture the entire radio frame transmitted from the operator base station 10 to the subscriber outdoor device 20.

On the other hand, since the upstream line for transmitting the signal from the outdoor subscriber unit 20 to the operator base station 10 is of the DAMA system as described above, the subscriber indoor unit 30
A plurality of subscriber indoor units 30-1 to 30-n can simultaneously access a line request from -1 to 30-n to the operator base station 10.

Therefore, a plurality of subscriber indoor units 30-1 to 30-1
If a line request to the operator base station 10 is made from 30-n at the same time, there is a possibility that this line request will collide. That is, the plurality of indoor units 30-1 to 30-n are connected to the common connection line 80 which is physically common to the outdoor unit 20.
Are connected via a plurality of indoor units 30-1 to 30-n.
, There is a possibility of signal collision.

The presence / absence of this signal collision is determined by monitoring the uplink on the operator base station 10 side.
The presence / absence of the collision is notified from the operator base station 10 to each of the subscriber indoor units 30-1 to 30-n via the downlink.

FIG. 3 is a sequence chart showing the above-described processing performed between the subscriber indoor unit 30 and the operator base station 10.

In FIG. 3, when a line request is transmitted from the subscriber indoor unit 30 to the operator base station 10, the operator base station 10 monitors the uplink to determine whether there is a collision of the line request. Is determined, and the result of the determination is notified from the operator base station 10 to the subscriber indoor unit 30 as a status notification.

Here, when the operator base station 10 determines that there is no collision of the line request, the operator base station 10 notifies the subscriber indoor unit 30 of an accessible time slot corresponding to the line request. Line assignment is performed.

When the carrier base station 10 determines that there is a line request collision, a process for avoiding collision, which will be described in detail later, is performed on the subscriber side.

FIG. 4 is a diagram showing an example of downlink signals from the operator base station 10 to the subscriber indoor units 30-1 to 30-n.

From the operator base station 10 to the subscriber outdoor unit 20
The downlink line for transmitting the signal to the subscriber outdoor device 20 is a TDM system broadcast (broadcast) communication.
The signal transmitted to the common connection line 80 from the
It is carried out by a method of broadcasting.

Here, the subscriber indoor units 30-1 to 30-
In the case of n, it is determined whether an incoming call is received by the own device by detecting the ID of the incoming signal. That is, each of the subscriber indoor units 30-1 to 30-n captures the entire radio frame transmitted from the operator base station 10 to the subscriber outdoor unit 20 and transmitted to the common connection line 80, and transmits a signal addressed to itself. Selectively acquire and discard signals addressed to other devices.

That is, in FIG. 4, the operator base station 1
0 to the subscriber indoor units 30-1 to 30-n are collectively captured by the subscriber indoor units 30-1 to 30-n, respectively. The signal to the device 30-1 is transmitted to the subscriber indoor device 30-.
1, the signal to the subscriber indoor unit 30-2 is selectively acquired by the subscriber indoor unit 30-2, and the signal to the subscriber indoor unit 30-n is obtained by the subscriber indoor unit 30-n. 30-n.

FIG. 5 shows the subscriber indoor units 30-1 to 30-.
FIG. 3 is a diagram showing an example of an uplink signal from the n to the operator base station 10.

Uplink signals from the subscriber indoor units 30-1 to 30-n to the operator base station 10 adopt the DAMA system, and therefore, a plurality of subscriber indoor units 30-1 to 30-3 are used.
If 0-n transmit signals at the same time, the signals collide on the common connection line 80.

This collision of signals is detected by the carrier base station 10 arranged on the carrier side, and is transmitted as a status notification via the downlink to the subscriber indoor units 30-1 to 30-30.
-N is notified. The subscriber indoor units 30-1 to 30- relating to the collision of this signal having received the collision detection status notification.
n calculates a random waiting time using a random number, and retransmits a signal related to the collision after the calculated waiting time has elapsed.

In FIG. 5, first, the subscriber indoor unit 3
0-1 and the indoor unit 30-2 transmit signals at the same time, and the signal transmitted from the indoor unit 30-1 and the signal transmitted from the indoor unit 30-2 collide with each other. Is shown.

In this case, the signals transmitted from the indoor unit 30-1 and the indoor unit 30-2 fail, and the indoor unit 30-1 and the indoor unit 3
0-2 calculates a random standby time using a random number, and retransmits a signal related to the collision after the calculated standby time has elapsed.

Here, since a random number is used for counting the standby time, there is a probability that the standby time calculated by the subscriber indoor unit 30-1 matches the standby time calculated by the subscriber indoor unit 30-2. Is very low, so that signal collision between the subscriber indoor unit 30-1 and the subscriber indoor unit 30-2 can be avoided, and the signal transmission is successful.

The signal collision between the subscriber indoor unit 30-1 and the subscriber indoor unit 30-2 could be avoided. However, as shown in FIG. May collide with a signal transmitted from another indoor unit such as the indoor unit 30-n.

In this case, each of the subscriber indoor unit 30-2 and the subscriber indoor unit 30-n calculates a random standby time using a random number, and after the calculated standby time has elapsed, the subscriber indoor unit 30-n. 2 re-transmits the signal related to the collision, and the subscriber indoor unit 30-n re-transmits the signal related to the collision. As a result, signal collision between the subscriber indoor device 30-2 and the subscriber indoor device 30-n can be avoided, and the signal transmission is successful.

In the above-described embodiment, the configuration is such that the signal is detected by the operator base station 10 located on the operator side, but the signal collision is detected on the common connection line 80. It can also be configured to detect and notify the subscriber indoor unit 20.

By the way, the above configuration makes it possible to recover the colliding signal. However, when the colliding signal occurs, the colliding signal is transmitted to the wireless access line 21 through the outdoor subscriber unit 20. . In this case, spurious signals are generated in the signal transmitted through the wireless access line 21 due to the collision signal.

FIG. 6 shows a state in which spurious signals are generated due to a collision signal.

In FIG. 6, reference numeral 23 denotes a desired desired wave, and reference numerals 24-1, 24-2, 25-1, and 25-2 denote spurs generated by collision of signals. This spurious is undesirable because it acts as noise outside the band used by the subscriber radio access network system and interferes with other systems.

Therefore, another embodiment of the present invention which eliminates spurious signals caused by the collision of signals will be described below.

FIG. 7 is a block diagram showing another embodiment of the main part of the subscriber radio access network system configured by applying the subscriber radio access network system and the control method according to the present invention.

In the configuration shown in FIG. 7, a plurality of subscriber indoor units 30-1 to 30-n and one subscriber outdoor unit 2
0, the collision avoidance device 300 is arranged, and when a collision occurs in the signals transmitted from the plurality of subscriber indoor devices 30-1 to 30-n, the occurrence of the collision is determined by the collision avoidance device 300. It is configured to detect and generate a predetermined random number pattern in place of the collision signal.

According to such a configuration, when a signal collision occurs, the signal transmitted to the wireless access line 21 via the subscriber outdoor unit 20 has a random number pattern. Also wireless access line 21
No spurious will be generated in the signal transmitted through.

In the base station of the operator, the detection of the random number pattern allows the indoor units 30-1 to 30-n of the subscribers.
Can detect a signal collision, and can then take measures such as a request for retransmission of a signal, so that there is no problem in system operation.

In FIG. 7, a collision avoidance device 300 of this embodiment includes a plurality of indoor units 30-1 to 30-.
n and one subscriber outdoor device 20. Here, a configuration in which the collision avoidance device 300 is provided in the outdoor subscriber device 20 is conceivable, but such a configuration is not preferable because the versatility of the outdoor subscriber device 20 is impaired.

[0068] The collision avoidance device 300 is the subscriber indoor device 3.
Hybrid circuit 30 connected to 0-1 to 30-n
1, splitter 302, amplifier 303, amplifier 304,
Delay circuit 305, selection circuit 306, PN pattern generation section 307, splitter 3 connected to outdoor subscriber device 20
08, detection circuits 309-1 to 309-n for detecting signals transmitted from the subscriber indoor units 30-1 to 30-n, A
The ND circuit 310 is provided.

In the above configuration, the downlink signal from the outdoor unit 20 is transmitted to the splitter 308 and the amplifier 30.
3, transmitted to the subscriber indoor units 30-1 to 30-n via the splitter 302 and the hybrid circuit 301.

The subscriber indoor units 30-1 to 30-n
Is transmitted to the subscriber's outdoor device 20 via the hybrid circuit 301, the splitter 302, the amplifier 304, the delay circuit 305, the selection circuit 306, and the splitter 308.

Now, the subscriber indoor units 30-1 to 30-n
If a collision occurs in the signal transmitted from the, the AND circuit 310 detects the collision. That is, when signals are simultaneously transmitted from at least two of the indoor units 30-1 to 30-n, a collision detection signal is generated from the AND circuit 310. And this AN
The collision detection signal from the D circuit 310 is output from the PN pattern generator 30 by replacing the output of the selection circuit 306 with the output of the delay circuit 305.
7 is selected.

As a result, the random number pattern generated from the PN pattern generation section 307 is applied to the outdoor subscriber unit 20 via the selection circuit 306 and the splitter 308.

That is, the subscriber indoor units 30-1 to 30-
When no collision has occurred in the signal transmitted from n, the selection circuit 306 is switched to select the output of the delay circuit 305, and the indoor units 30-1 to 30- are switched.
n from the hybrid circuit 301,
The signal is transmitted to the subscriber's outdoor device 20 via the splitter 302, the amplifier 304, the delay circuit 305, the selection circuit 306, and the splitter 308, and the uplink signal is transmitted from the subscriber's outdoor device 20 to the wireless access line 21.

However, the subscriber indoor units 30-1 to 30-
When a collision occurs in the signal transmitted from the AND circuit n, the collision detection signal output from the AND circuit 310 causes the selection circuit 30
6 is switched so as to select the output of the PN pattern generation unit 307, whereby the outdoor unit 20 generates a PN pattern instead of the uplink signal from the indoor units 30-1 to 30-n. The random number pattern generated by the unit 307 is transmitted to the wireless access line 21.

Here, the subscriber indoor units 30-1 to 30-
Since the signal of the uplink from n is added to the selection circuit via the delay circuit 305, the signal transmitted from the outdoor subscriber unit 20 to the wireless access line 21 is not affected by signal collision, and Even if a signal collision occurs, spurious as shown in FIG. 6 due to a signal transmitted to the wireless access line 21 does not occur.

This random number pattern is received by the carrier base station 10 arranged on the carrier side, and the carrier base station 10 receives the random number pattern and thereby receives the indoor subscriber units 30-1 to 30-n. Side knows the signal collision and can send a status notification indicating the signal collision to the downlink.

FIG. 8 is a block diagram showing power supply to outdoor equipment 20 in the configuration shown in FIG.

In the configuration shown in FIG. 10, subscriber indoor units 30-1 to 30-4 and subscriber outdoor units 20-1 to 20-1.
20-4 corresponded one-to-one, so that the indoor subscriber units 30-1 to 30-4 were connected to the outdoor subscriber units 20-1 to 20-.
4 were supplied with power.

However, as shown in FIG. 2, when a configuration is adopted in which one subscriber outdoor device 20 is installed for a plurality of subscriber indoor devices 30-1 to 30-n, this one The problem is how to supply power to the outdoor device 20 of the subscriber.

Therefore, in the configuration shown in FIG. 8, the power supply of one of the plurality of indoor units 30-1 to 30-n, for example, the indoor unit 30-n is supplied. The circuit 70 is configured to supply power to the subscriber outdoor device 20.

That is, the DC power supply current output from the power supply circuit 70 connected to the subscriber indoor unit 30-n includes the subscriber indoor unit 30-n, the subscriber branch line 31-n,
The power flows to the outdoor device 20 via the common connection line 80 and the subscriber line 22, whereby power is supplied to the outdoor device 20.

The other indoor units 30-1 to 30- (n-1) other than the indoor unit 30-n have direct current cut units 32-1 to 32-32 at their signal input / output units.
(N-1) is provided.

According to such a configuration, the subscriber indoor unit 3
0-1 to 30-n, one subscriber indoor unit 30-
n can be used to supply power to the outdoor device 20 and the direct current cut device 32-1
~ 32- (n-1), the power supply from this one subscriber indoor unit 30-n is changed to another subscriber indoor unit 30-n.
It does not affect the signal input / output of -1 to 30- (n-1).

In this case, the subscriber indoor unit 30-n
Is 1 for a plurality of subscriber indoor units 30-1 to 30-n.
Since they are arranged, the power consumption for the subscriber indoor unit 30-n can be minimized.

[0085]

As described above, according to the present invention,
In a control method for a subscriber wireless access network system using a radio signal for an access line between a subscriber and an operator, one subscriber corresponding to a plurality of subscriber indoor units respectively installed on the subscriber side Since an outdoor device is provided, and a wireless access line is terminated by the outdoor device of the subscriber and a wired signal is connected to a plurality of indoor devices of the subscriber, a large number of indoor devices are installed in the house. Even in the case of installation, the space for installing the outdoor equipment of the subscriber can be minimized, and it is also aesthetically pleasing,
This has the effect of reducing power consumption.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a main part of a subscriber radio access network system configured by applying a subscriber radio access network system and a control method thereof according to the present invention.

FIG. 2 is a diagram showing a state of connection between a subscriber indoor device and a subscriber outdoor device in the subscriber wireless access network system of the present invention.

FIG. 3 is a sequence chart showing the above processing performed between the subscriber indoor unit 30 and the operator base station 10.

FIG. 4 is a diagram illustrating an example in which a subscriber base station 30-1 is connected to an operator base station 10.
It is a figure which shows an example of the signal of the downlink to 30-n.

FIG. 5 is a diagram showing an example of uplink signals from the subscriber indoor units 30-1 to 30-n to the operator base station 10.

FIG. 6 illustrates a state in which spurious signals are generated by a collision signal.

FIG. 7 is a block diagram showing another embodiment of the main part of the subscriber radio access network system configured by applying the subscriber radio access network system and the control method thereof according to the present invention.

FIG. 8 shows a subscriber outdoor device 20 in the configuration shown in FIG.
FIG. 3 is a block diagram showing power supply to the power supply.

FIG. 9 is a system configuration diagram showing an entire configuration of a subscriber wireless access network system.

FIG. 10 is a diagram showing a state of installation of a subscriber outdoor device when a plurality of subscriber indoor devices are installed in one house.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Business base station 20 Subscriber outdoor apparatus 21 Radio access line 22 Subscriber concentrator 30-1 to 30-n Subscriber indoor apparatus 31-1 to 31-n Subscriber branch line 32-1 to 32-n DC current cut Device 50 Wired access line 70 Power supply device 80 Common connection line 300 Collision avoidance device 301 Hybrid circuit 302 Splitter 303 Amplifier 304 Amplifier 305 Delay circuit 306 Selection circuit 307 PN pattern generator 308 Splitter 309-1 to 309-n Detection circuit 310 AND Circuit house 400

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinya Mishima 3-term Asahigaoka 3-chome, Hino-shi, Tokyo F-term in the Toshiba Hino Plant (reference) 5K030 GA05 HB01 HC13 JA01 JA02 JL01 JL09 KA23 LA01 LB12 LD02 5K032 AA04 BA15 CA08 CA10 CA12 CC10 DA08 DA21 DB25 DB26 5K033 AA04 BA14 CA08 CA12 CB13 DA13 DA17 DB17 DB18 5K067 AA41 BB02 CC04 EE10 EE12 EE22 HH05

Claims (17)

[Claims] 1. A subscriber radio access network system using a radio signal for an access line between a subscriber and an operator, wherein a plurality of subscriber indoor units respectively installed on the subscriber side; A subscriber outdoor unit provided for the indoor unit and terminating the access line and concentrating a wired signal between the indoor unit and the plurality of indoor units. Network system. 2. The plurality of subscriber indoor units are each connected to a plurality of subscriber branch lines, and the outdoor subscriber units are connected to a subscriber concentrator, and the plurality of subscriber branch lines and the subscriber 2. The subscriber wireless access network system according to claim 1, wherein the subscriber line is connected to the concentrator via a common connection line. 3. A signal transmitted from the outdoor unit to the plurality of indoor units is multiplexed by a time division multiplexing method and broadcasted to each indoor unit. The subscriber wireless access network system according to claim 1, wherein the signal transmitted to the subscriber outdoor unit is transmitted by being multiplexed by a demand assignment multiple access method by a time division multiple access method. 4. The subscriber according to claim 1, further comprising collision avoiding means for detecting a collision of a signal transmitted from said indoor unit to said outdoor unit and avoiding said collision. Wireless access network system. 5. The collision avoiding unit includes: a collision detecting unit configured to detect a collision of a signal transmitted from the indoor unit to the outdoor unit; and a case where the collision is detected by the collision detecting unit. ,
5. The subscriber wireless access network system according to claim 4, further comprising: retransmission control means for retransmitting the signals related to the collision after different delay times have elapsed. 6. The subscriber radio access network system according to claim 4, wherein said collision detecting means is provided in each of said subscriber indoor units. 7. The subscriber radio access network system according to claim 4, wherein said collision detection means is provided on a common connection line connecting said indoor subscriber unit and said outdoor subscriber unit. 8. The subscriber wireless access network system according to claim 4, wherein said collision detecting means is provided in an operator base station installed on said operator side. 9. The collision avoiding unit includes: a collision detecting unit configured to detect a collision of a signal transmitted from the indoor unit to the outdoor unit; and a case where the collision is detected by the collision detecting unit. ,
4. The subscriber wireless access network system according to claim 3, further comprising a random number pattern transmitting means for transmitting a predetermined random number pattern instead of the signal relating to the collision. 10. The subscriber wireless access network system according to claim 9, wherein said collision avoidance means is provided between said indoor subscriber device and said outdoor subscriber device. 11. One of said plurality of subscriber indoor units.
Power supply means provided in one of the subscriber indoor units, for supplying power to the outdoor unit via a common connection line connecting the indoor unit and the outdoor unit; and 2. The subscriber wireless access network according to claim 1, further comprising: a DC current cut unit provided in another indoor unit of the subscriber, for cutting a DC current from the common connection line. system. 12. A method for controlling a subscriber wireless access network system using a wireless signal for an access line between a subscriber and a business operator, wherein the control method corresponds to a plurality of subscriber indoor units respectively installed on the subscriber side. A subscriber outdoor device, wherein the subscriber outdoor device terminates the access line, and collects a wire signal between the plurality of subscriber indoor devices. Network system control method. 13. The subscriber indoor unit multiplexes a signal transmitted from the outdoor unit to the plurality of indoor units by a time division multiplexing method and broadcasts the multiplexed signal to each indoor unit. 13. The method of controlling a subscriber wireless access network system according to claim 12, wherein a signal transmitted to a user outdoor device is multiplexed by a time-division multiple access method and a demand assign multi-access method and transmitted. 14. The apparatus according to claim 12, wherein, when a signal transmitted from said indoor unit to said outdoor unit collides, signals related to said collision are retransmitted with different delay times. A method for controlling a subscriber wireless access network system. 15. The subscriber wireless access network system according to claim 14, wherein the delay time is controlled at random according to a random number generated in a subscriber indoor / outdoor device related to the collision. Control method. 16. When a signal transmitted from the indoor subscriber unit to the outdoor subscriber unit collides, a predetermined random number pattern is transmitted instead of a signal related to the collision. A subscriber wireless access network system as described. 17. One of said plurality of subscriber indoor units.
Power is supplied from one indoor unit to the outdoor unit via a common connection line connecting the indoor unit and the outdoor unit, and the common connection is used for other indoor units. 13. The method according to claim 12, wherein the direct current from the line is cut.