JP3092064B2 - Antenna control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0101]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital radio transceiver constituting a micro cell, comprising an external line connecting trunk for connecting to a telephone line or a data line, and a relay between the external line connecting trunk and a mobile terminal. An extension connection between a relay connection trunk for connection and multiple mobile terminals
The connection constitutes a row of cormorants extension connection trunk walk connection antenna or twisted pair between the external line connected trunk or an external base station and the relay connection trunk
The coaxial cable or optical cable or their combination
Bound by viewing the combined heat transmission means, connected between said external connection trunk and the mobile terminal, it relates antenna controller performed by the relay, such as control signals or data contained in the RF signal from the external connection trunk is there.

[0092]

2. Description of the Related Art FIG. 10 is a block diagram of an antenna control device disclosed in Japanese Patent Application No. 9-323708. In FIG. 10, (1) is a control trunk, (2) is an extension connection trunk, (3) is a trunk connection trunk, (4) is an external connection trunk, (11a), (21a)-(21k), ( 3
1a)-(31m), (41a)-(41n) are digital transceivers operating in time division or code division, (32 ) and (33) are antenna branching / combiners, and (4)
2) is a line interface, (52) is a telephone line or data line, (53) is an outdoor antenna, (54)
(55), (56), (57), (58), (59) are connection coaxial cables, (61), (62), (63), (64) are connection terminals, (101) is an external base station, and (102) is The antenna control device, (103a) and (103b) are distributed antennas, and (104a) and (104b) are mobile terminals. Next, the operation will be described. The control trunk (1) includes at least one digital transceiver (11a), and transmits and receives control signals to and from the mobile terminals (104a) and (104b). The extension connection trunk (2) is composed of a digital transceiver (21a) --- (21k),
An extension connection is made between the mobile terminals (104a) and (104b). The relay connection trunk (3) comprises a digital transceiver (31a)-(31m) and an antenna branching / combiner (32), and is connected to an external antenna (53) via a connection terminal (63). A relay connection is made between the mobile terminal (104a) or (104b) and the external base station (101). The external line connecting trunk (4) is composed of a digital transceiver (41a)-(41n) and a line interface (42). The mobile terminal (104a) or (104b) and a telephone line or data line (52).
Make a relay connection between Each transceiver (11a), (2
1a) --- (21k), (31a) --- (31m),
(41a) - antenna terminal (41n), the antenna branch & combiner more common connection terminal (33) (61)
(62), connection cables (54), (55)
(56) Distributed antenna (103a) via (57)
(103b) and the mobile terminal (104a) (10
4b).

[0093]

The conventional antenna control device is configured as described above. However, since the trunk for trunk connection and the trunk for external line connection are connected via a branching device,
They must be housed in the same housing or placed close to each other. According to the present invention, the relay connection trunk and the external line connection trunk of the antenna control device are separately installed and installed .
Antenna or twisted pair cable or
Is a coaxial cable or optical cable or a combination of these.
Joined by viewing the combined transmission unit, and an object thereof is to expand the service area of the total.

[0093]

Means for Solving the Problems] transceiver digital method for the construction of micro-cell according to the present invention, frequency division or time division or code divider or their
It operates in combination and transmits and receives high-frequency signals modulated by digital signals.
Function to make an external line connection, an internal line connection, a relay connection, or a call connection with a mobile terminal.

[0056]

In the present invention, a digital type transceiver constituting a microcell comprises an external line connecting trunk for connecting to a telephone line or a data line, and an internal line connecting trunk for making an internal line connection between mobile terminals. An external connection trunk or a relay connection trunk for performing a relay connection between the external base station and the mobile terminal is configured, and the external connection trunk or the external base station is connected to the extension connection trunk or the relay connection trunk. connection <br/> antenna or Tsuisutopeakeburua Rui combination or these coaxial cables or optical cables between
Joined by heat transmission means, call connection by a control signal or data information such as that contained in the high-frequency signal from the external connection trunk is made.

[0086]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. In FIG. 1, (1) is a control trunk, (2) is an extension connection trunk, (3) is a trunk connection trunk , and (4)
External connections trunks, (11a), (2 1a ) - (2
1k ), ( 31a)-(31m ), ( 41a)-
(41n) is a transceiver for digital system for operating in a few minutes split or time division or code <br/> divider or combinations thereof for details on how (32) (43) (33) is an antenna branch-synthesizer, ( 42) the line inter-off rays scan unit, (5
1) is an antenna of an external line connecting trunk, ( 52) is a telephone line or a data line, (53) is an outdoor antenna, (5)
4a) and (54b) are coaxial for connecting an indoor antenna.
To case b le, (61) (62) (63) (64) (65)
Is a connection terminal, (101) is an external base station, (102) is an antenna control device, and (104a) and (104b) are mobile terminals.

[007] In FIG. 1, a control trunk (1) consists of de di <br/> barrel type transceiver (11a), to transmit and receive control signals mobile terminal and (104a) with respect to (104b). The extension connection trunk (2) is composed of a digital transceiver (21a)-(21k).
04a) and (104b) cascade connection or
Time slot conversion or code conversion or these
Combination perform the internal line connection. Relay connection trunk (3)
The digital transceivers (31a) - and (31m)
Branching and combining the branch-synthesizer (32) and a second antenna terminal for branching and combining the first antenna terminal
It consists of a branching-combining device for (33), splitting and combiner
(32) is an external antenna (5 via the connection terminal (63)
3) , and the branching / synthesizing unit (33) is connected to the connection terminal (6).
1) The same for connecting an indoor antenna via (62)
Are respectively connected to a coaxial cable (54a) (54b), mobile terminals (104a) or (104b) and an external base station (1
01) or cascade or time slot conversion or code conversion between the outer line connection trunk (4)
Or performing connection relay contact in combination. The external line connecting trunk (4) is a digital transceiver (41).
a) - (41n) and the line Inter-off rays scan unit (42)
And is composed of an antenna branch-synthesizer (43), the antenna (51) is connected via the connection terminal (65), medium
Connection trunk (3) and telephone line or data line
External line connection is made with (52).

Here, each transmission / reception signal of the relay connection trunk (3)
The transceiver (31a)-(31m) is connected to an external base station (10
1) Or the external line connecting trunk (4) is synchronized, and the antenna (51) of the external line connecting trunk (4), the antenna of the external base station (101) and the outdoor antenna (53) of the relay connecting trunk (3) are connected. Are connected in space, and are connected to the connecting coaxial cables (54a) and (54b).
Indoor antenna and the mobile terminal which (104a) (104b)
Antennas are also coupled in space to form a good space division switch. Also, each transceiver (41a) of the external line connection trunk (4)-(41
The same effect can be obtained even when n) is configured by an external base station for public service. Also, if the relay connection preparative <br/> rank (3) is installed is divided into a plurality of groups, further, a large antenna controller of scale is completed.

FIG. 2 is a block diagram showing another embodiment of the antenna control apparatus of the present invention. In FIG. 1, an outdoor antenna (53) and an antenna (57) of an external line connecting trunk (4) are shown.
Are connected by a connecting coaxial cable (58), and the same effect can be obtained.

FIG. 3 is a block diagram showing another embodiment of the antenna control apparatus of the present invention, wherein (1a) and (1b) are control trunks, (2a) and (2b) are extension connection trunks, and (3)
a) (3b) is a trunk for trunk connection, (4) is a trunk for external line connection, (11a), (21a)-(21k), (3)
1a)-(31m), (41a)-(41n) are digital transceivers constituting microcells, (32
a) (32 b) (43) (33a) (33b) is antenna <br/> Na branched-synthesizer (42) the line inter off rays scan unit,
(51) is an antenna of an external line connecting trunk, ( 52) is a telephone line or a data line, (53a) and (53b) are outdoor antennas, and (54b) and (55b) are indoor antennas.
Coaxial cables for connection, (60a) indoor antenna, (61b) (62a) ( 62b) (63a) (63
b) (64) and (65) are connection terminals, (101) is an external base station, (102a) and (102b) are antenna control devices, and (104a) (104b) (104c) (104)
d) is a mobile terminal.

In FIG. 3, the control trunk (1a) (1
b) at least one digital transceiver (11)
a) mobile terminals (104a) (104b)
(104c) Transmit / receive control signals to / from (104d). The extension connection trunks (2a) and (2b) are digital transceivers (21a) --- (2
1k) and the mobile terminals (104a) (104b)
Alternatively, an extension connection is made between (104c) and (104d). The relay connection trunks (3a) and (3b) are digital transceivers (31a) --- (3
1m) and antenna splitters / combiners (32a) (32b ) and
And (33a) and (33b).
a) An external antenna (53a) (53
b) is connected, and the connection terminal (62a) or (62)
b) via an indoor antenna (60a ) or connection end
Connect the indoor antenna via the child (61c) (62c)
Coaxial cables (54b) and (55b)
Is, mobile terminals (104a) (104b) (104c )
(104d) and cascaded or time slot conversion or code conversion between the external connection trunk (4)
Alternatively, relay connection is performed by combining these . External connections trunk (4) is a digital type constituting the microcell transceiver (41a) - (41n) and line inter <br/> prefectural scan unit (42) and the antenna branch-combiner (4
3) and an antenna via a connection terminal (65)
(51) evidence supporting connected. Relay connection trunk (3a)
Alternatively rows outside line connecting the digital signal from (3b) with respect to transmission and reception to telephone lines or data lines (52)
U. Here, the relay connection trunk antenna controller (102b) (3b) is to loom the role of relay in tandem between the outside line connection trunk (4) Other antenna controller (102a), the further, scale Antenna control device network with a large size can be realized.

FIG. 4 is a block diagram showing another embodiment of the antenna control apparatus of the present invention, wherein (1c) is a control trunk,
(2c) is an extension connection trunk, (3a) (3b) (3
c) is a trunk for trunk connection, (4) is a trunk for external line connection,
(11a), (21a)--(21k), (31a)-
-(31m), (41a)-(41n) are digital transceivers constituting microcells, (32a) (3
2b) (32c) (43) (33a) (33b) (33
c) is an antenna splitter / combiner, (42) is a line interface unit, (52) is a telephone line or data line,
(54c) and (55c) are coaxial cables for connecting an indoor antenna, (60a) and (60b) are indoor antennas,
(62a) (62b) (61c) (62c) (63a)
(63b) (63c) (63d) (64) (65) are connection terminals, (102a) (102b) (102c) are antenna control devices, (104a) (104b) (104)
c) (104d) (104e) (104f) are mobile terminals, (105) is a CATV (cable television) device, (106a) and (106b) are coaxial cables for connection,
(107) is a bidirectional booster, (108a) (108
b) (108c), (108d) and (108e) are couplers,
(108f) is a mixer, (12 1) is fixed end late, (12
2) is a digital transceiver, (123) is an operation control unit,
(124) is a handset, (125) is an adapter including a digital transceiver, (126) is an existing or standard telephone, (131a) and (131b) are converters for converting between an optical signal and a high-frequency signal, (132) is an optical cable. Coaxial cable for connection (106a) (106b)
Is, for example, a high-frequency signal such as a TV signal of CATV broadcasting using a band of 70 MHz to 450 MHz in the down direction,
A high-frequency signal modulated with a digital signal or the like is transmitted using the 10 MHz to 50 MHz band in the upstream direction. These signals are amplified on the way by the bidirectional booster (107) and transmitted to a distant place. Optical cable (13
2) The converter (131a) (131b), which is connected to both ends and converts the optical signal and the high-frequency signal mutually, transmits a signal obtained by converting the high-frequency signal into an optical signal, and transmits the converted signal again. (131b) converts the optical signal into a high-frequency signal, and connects the coaxial cable (106a) (10
6b). The digital transceiver (41a)-(41n) of the external line connection trunk (4) is a simple portable telephone system.
Stem frequency band and protocol (modulation method, coding method
Wherein transmission system, and control procedures, etc.) will be operating, it
Among them, the protocol was not converted and only the frequency band was
To the second frequency band assigned to the connecting coaxial cable
Has been converted . These digital transceivers (41a)
The high-frequency signal of-(41n) is combined by the antenna branching / combining device (43), coupled to the connecting coaxial cable (106) via the coupler (108d), and amplified by the bidirectional booster (107). , Transmitted to a distant place. Antenna control devices (102a) (102b) (1
02c) are the couplers (108a), (108b) and (108
c) to the connecting coaxial cable (106). Digital transceivers (11a), (31)
a) --- (31 m) is a coaxial cable (106) for connection.
Simple mobile phone cis if example example assigned the second frequency band was to
To convert back to the third frequency band assigned to Temu, cascaded or time slot conversion or transcoding or a combination of these performs relay connection, indoor antenna (60a) (60b) or coaxial connection Since it has a function of transmitting and receiving from an indoor antenna connected to the cables (54c) and (55c), for example, when a mobile terminal (104a) makes a call, it is relayed by the antenna control device (102a) and connected to the connection coaxial cable (106a). ) (106b) via an external line connecting trunk (4) and connected to a subscriber telephone or another mobile terminal via a public telephone line (52).
The fixed terminal (121) is coupled to the connecting coaxial cable (106b) via a coupler (108d). The digital transceiver (122) directly accesses the frequency band allocated to the connecting coaxial cable (106b),
The operation control unit (123) and the handset (124) enable talking with a subscriber telephone on the telephone line (52) via the external line trunk (4). The fixed end end (121)
Can be directly connected to, for example, coaxial cables (54c) and (55c) connected to the antenna control equipment (102c). Standard telephone or existing telephone (12
6) is an adapter (1) having a digital transceiver.
25) and a coupling (108e) to the connecting coaxial cable (106b). The adapter (125) directly accesses the frequency band allocated to the connecting coaxial cable (106b), and the telephone (126) communicates with the subscriber of the telephone line (52) through the external trunk (4) or the antenna. Control device (102a) (1
02b) Mobile terminal (104a) via (102c)
(104b) (104c) (104d) (104e)
(104f). Further, the adapter (12
5) can be directly connected to, for example, the connection coaxial cables (54c) and (55c) connected to the antenna control device (102c). With this connection, even if the magnitude of the high-frequency signal to the relay trunk is not uniform due to the difference in the distance between the plurality of mobile terminals and the relay connection trunk, the magnitude of the high-frequency signal in the upstream direction in the optical cable (132) is large. Can be kept almost constant, and the optical cable (13
The effect of interfering with a weak signal due to intermodulation caused by nonlinear distortion during high-frequency signal transmission in 2) is greatly reduced.

FIG. 5 is a block diagram showing another embodiment of the antenna control apparatus according to the present invention, in which (3a), (3b) and (3c).
Is a trunk for trunk connection, (4) is a trunk for external line connection, (3)
1a) --- (31n) is a digital transceiver constituting a microcell, (32a) (32b) (32c)
(43) (33a) (33b) (33c) are antenna branching / combiners, (42) is a line interface unit, (5)
2) telephone line or data line, (60a) (60
b) (60c) is an indoor antenna, (62a) (62b)
(62c) (63a) (63b) (63c) (64)
(65) is a connection terminal, (102a) (102b) (1
02c) is an antenna control device, (104a) is a mobile terminal, (106a) and (106b) are coaxial cables for connection,
(108a), (108b), (108c), and (108d) are couplers. (131a), (131b), and (131c) are converters for converting between an optical signal and a high-frequency signal.
2) is an optical cable. External connections trunk (4) of digital transceivers (41a) - (41n), if example <br/> example, the frequency bands of the simple portable telephone system and flop Rotoko Le
(Modulation system, coding system, transmission system, control procedure, etc.)
In will be operating, the protocol without converting Of these,
Handyphone to reduce the loss of a coaxial cable
A second lower frequency band different from the first frequency band of the stem
Have been assigned . These digital transceivers (41
a) The high-frequency signal of (41n) is combined by the antenna branching / combining device (43), coupled to the connecting coaxial cable (106a) via the coupling device (108d), and transmitted to a distant place. The optical cable (132) transmits a signal obtained by converting the high-frequency signal into an optical signal by the converters (131a) and (131b) for converting between the high-frequency signal and the optical signal connected to both ends, and transmits the optical signal again. Is converted to a high-frequency signal, and the coaxial cable for connection (106a) (106
Connect to b). Antenna control device (102a) (10
2b) and (102c) combiners (108a) and (108)
b) The coaxial cable (106) for connection via (108c)
a) (106b) or an optical cable (132). The optical signal combined by the combiner (108b) converts the optical signal between the optical signal and the high-frequency signal (131).
The signal is converted into a high frequency signal by c) and connected to the antenna control device (102b). A digital transceiver (31a)-(31n) is connected to a coaxial cable (10
6a) the second lower frequency assigned to (106b) above;
The first was assigned to a simple mobile phone system if example example the number band
3 and has a function of relaying by cascade connection, time slot conversion, code conversion, or a combination thereof. For example, the digital transceiver (31a) of each antenna control device (102a) (102b) (102c) performs relaying at the same frequency, the same time slot, or the same code, and similarly performs the other Transceiver (31b) --- (31
In the case of n), the relay is performed similarly. When relaying a digital signal from the mobile terminal (104a), each antenna control device (102a) (102b) (102c) determines the timing at which the signal reaches the transceiver (41a) of the external connection trunk (4). Timing adjusting means for uniformity, and a transceiver (41) of the external connection trunk (4) according to the magnitude of the high frequency signal from the mobile terminal (104a).
It has transmission output adjusting means for adjusting the magnitude of the high-frequency signal transmitted toward a). Mobile terminal (104a)
Is relayed by a plurality of antenna control devices, for example, (102a) and (102b), the transceiver (41a) of the external line connection trunk (4) transmits two antenna control devices (102a) and (102b). ), The two high-frequency signals (modulated by digital signals) have the same timing, and the magnitude of the high-frequency signal from the mobile terminal (104a) has a large amplitude. The reception sensitivity is improved by the same effect as the maximum ratio diversity. On the other hand, the digital signal transmitted from the transceiver (41a) of the external line connecting trunk (4) is transmitted to each antenna control device (102a) (10
2b) According to (102c), since the mobile terminal (104a) has a means for adjusting the timing so that relaying is performed at the same frequency, the same time slot, the same code, or the same timing, the mobile terminal (104a) controls these antennas. Since high-frequency signals transmitted from the devices (102a), (102b), and (102c) can be received at almost the same timing, mutual interference can be reduced. With the above-described configuration, communication can be continuously maintained by a function similar to handover even when the mobile terminal (104a) is moving.

FIG. 6 is a block diagram showing a specific embodiment of the antenna control device according to the present invention. (102a) is an antenna control device, and (31a) is a digital system (as an example,
Time-division multiplexing / time-division simultaneous transmission / reception system transceiver (8
1a) is a transmitter, (82a) is a receiver, (83a) (8)
4a) is a baseband IC, (85a) is a control unit, and (8a)
6a) and (87a) are switches for switching between the connection terminals (62a) and (63a), and (71a) (72a)
(73a) is a band-pass filter, (108a) is a coupler with a connecting coaxial cable, (32a) and (33a) are splitters, (88a) is a down converter, (89a) is an up converter, and (90a) is a timing. Adjusting means, (91a) is a variable attenuator, (92a) is a variable delay line, (60a) is an indoor antenna, (104a)
(104b) is a mobile terminal. First, the transceiver (31
From a), a broadcast signal is transmitted through the control channel. The broadcast signal includes the mobile terminal (104a) (1
04b) can be included. In this state, when the mobile terminal (104a) calls another mobile terminal (104b), the transceiver (31)
Switch (86a) (87a) uses antenna (60a) in all slots to perform loopback in a)
Side is selected and sends a paging signal for paging the mobile terminal (104b) to another mobile terminal (104b);
When another mobile terminal (104b) responds, baseband relay is performed, for example, between different time slots, and a connection state is established with the mobile terminal (104a). When either side ends the call, the line is disconnected and the system returns to the standby state. If the mobile terminal (104a) calls the telephone line, the switches (86a) (87a) are connected between the indoor antenna (60a) and the connecting coaxial cable coupler (108a), for example, by a switch (86a). 86a) is a mode for alternately switching between the fifth and seventh time slots, and the switch (87a) is a mode for alternately switching between the first and third time slots. Coupler with cable (1
08a), and when the other party responds, for example, baseband relay is performed between different time slots,
The mobile terminal (104a) is connected to the other party. When either side ends the call, the line is disconnected and the system returns to the standby state. The down converter (88a) and the up converter (89a) are connected to a coaxial cable (10
Only the second frequency band assigned to the mobile terminal (1 ) is assigned to the mobile terminal (1).
04a), for example , a simple mobile phone system.
It converted mutually to a third frequency band allocated to the stem, to achieve interconnection with mobile terminals (104a) to a telephone line. The operation of the timing adjusting means (90a), the variable attenuator (91a), and the variable delay line (92a) will be described with reference to FIG.

In FIG. 7, a digital signal transmitted from the external line connecting trunk (4) through the connecting coaxial cable (106) is converted by the first antenna control device (102c) into (111a) of FIG. 7 (c). Received at the timing,
In contrast, from the relay connection trunk (31a) digital signal at a timing of delayed time _{t 1} through the coaxial cable (106) for connection (113a) is returned to the external connection trunk (4). Antenna control device (102
b) When the position of (102a) is far from the external line connecting trunk (4), the reception timing is as shown in FIG. 7 (b).
Alternatively Since delayed by a time _{t 2} or _{t 3} as shown in (a), these timing adjusting means lag (90
a) as early as (1) in FIG. 7 (b) or (a).
Adjustment is made so that the digital signal is transmitted to the external line connection trunk (4) at the timing of 13a). Similarly, the transmission timing (114a) to the mobile terminal (104a) and the reception timing (112a) from the mobile terminal (104a)
Is also adjusted by the timing adjusting means (90a).
Further, the magnitude of the digital signal transmitted to the external line connecting trunk (4) can be changed by the variable attenuator (91a) in accordance with the magnitude of the signal received from the mobile terminal (104a). On the other hand, a relay connection trunk (102a)
(102b) The timing at which (102c) receives the digital signal from the external connection trunk (4) can be made uniform by providing the variable delay line (92a), and therefore, the transmission timing (114a) to the mobile terminal (104a) can be made uniform. ) Are equalized, the relay connection trunk (10
2a) (102b) Interference due to high-frequency signals transmitted from (102c) can be reduced.

[016] Figure 8 is a diagram for explaining the operation of the present invention, the 8 (1) is Ri downlink RF signals der coaxial cable connection, (2) the uplink RF Signal . First and second coupled to a connecting coaxial cable
Digital transmission / reception of external line connection trunk
This is a time-division simultaneous transmission and reception method,
The downlink frequency band of the signal is different from the uplink frequency band
In the case, for example, a downlink from the first external connection trunk
The high frequency signal in the direction is transmitted to the transmission slot
b) transmission in descending order from the second external connection trunk
The high frequency signal in the direction is transmitted to the transmission slot (116a) (116).
b) Transmission in the order of b) and going up to the first external connection trunk
Receiving the high frequency signal in the receiving slot (117a) (117).
b) transmission in order, and going up to the second external line connection trunk
Receiving the high-frequency signal in the direction (118a) (118)
by receiving in the order of b), it is possible to increase the transmission capacity of the coaxial cable connected to the 2-fold.

FIG. 9 is another block diagram showing a specific embodiment of the antenna control device of the present invention. (102a) is an antenna control device, and (31a1) and (31a2) are digital systems (as an example). , A time-division multiplexing / time-division simultaneous transmission / reception system), (81a1) and (81a2) are transmitters,
(82a1) and (82a2) are receivers, (83a1) and (8
3a2) is a synthesizer, (84a1) and (83a2) are baseband ICs, (85a1) and (85a2) are control units, (71a), (72a) and (73a) are bandpass filters, and (108a) is a connection coaxial cable (106). ), (32a) and (33a) are splitters, and (88a)
Is a down converter, (89a) is an up converter, (90a) is a timing adjusting means, (91a) is a variable attenuator, (92a) is a variable delay line, (60)
a) is an antenna, and (104a) and (104b) are mobile terminals. First, a notification signal is transmitted from the transceiver (31a2) through the control channel. This broadcast signal can include information for regulating the transmission output of the mobile terminals (104a) (104b). In this state, when the mobile terminal (104a) calls the telephone line (52), the transceiver (31a1) and the transceiver (31a1).
2) is cascaded between the baseband ICs (84a1) and (84a2) via the trunk line (66a), and the baseband signal of the receiver (82a1) is transmitted to the transmitter (81a2) and to the receiver (81a2). The baseband signal of 82a2) is relayed to the transmitter (81a1). Transmitter (81a
1) sends a call signal to the telephone line via a coupler (108a) with a connecting coaxial cable (106),
If the other party responds, the mobile terminal (104a) and the other party are connected. When either side ends the call, the line is disconnected and the system returns to the standby state. Down converter (8
8a) and upconverter (89a) is assigned the second frequency band to the connecting coaxial cable (106)
Themselves, frequency assigned to the mobile terminal (104a), For example <br/>, third frequency that are assigned to handyphone system
The mobile terminal (104a) and the telephone line (52) are mutually converted into several bands to realize mutual connection. Alternatively, if the transmitter (81a1) and the receiver (82a1) are operated directly in the second frequency band allocated to the connection cable (106), the down converter (88a) and the up converter (89a) can be operated. Can be omitted. Timing adjusting means (90a), variable attenuator (91a),
Variable delay line (92a) is a transceiver (31a1)
, And its operation is as described in FIG.

In the above description, the case where a coaxial cable or an optical cable for connection is used has been described. However, similar effects can be obtained by using a similar transmission cable such as an existing telephone line twisted pair cable or LAN twisted pair cable. Is obtained. In addition, it is possible to branch the coaxial cable for connection, insert a booster for amplification, or supply power through the core wire of the transmission cable. In addition, an existing LAN coaxial cable, a CATV coaxial cable, or a transmission cable such as an optical cable can be used as it is as a connection coaxial cable, so that an inexpensive system can be constructed. Further, between the antenna controller coupled with the space or transmission cable, it is also possible to assign the same frequency band than that used to connect to the mobile terminal. In addition, it is possible to connect a large number of antenna control devices in tandem, and it is also possible to branch in the middle. Similar effects can be obtained by using a separate twisted pair cable or a transmission cable such as a coaxial cable or an optical cable in the downstream and upstream directions as the connection coaxial cable.

[0119]

Since the present invention is constructed as described above, the external connection trunk can be installed separately, and the external connection trunk and the relay connection trunk can be separated by using a space or connection coaxial cable. Connection or tandem relay using a relay connection trunk.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing one embodiment of an antenna control device of the present invention.

FIG. 2 is a configuration diagram showing another embodiment of the antenna control device of the present invention.

FIG. 3 is a configuration diagram showing another embodiment of the antenna control device of the present invention.

FIG. 4 is a configuration diagram showing another embodiment of the antenna control device of the present invention.

FIG. 5 is a configuration diagram showing another embodiment of the antenna control device of the present invention.

FIG. 6 is a configuration diagram showing a specific embodiment of the antenna control device of the present invention.

FIG. 7 is a diagram showing the operation of the antenna control device of the present invention.

FIG. 8 is a diagram showing another operation of the antenna control device of the present invention.

FIG. 9 is a configuration diagram showing another specific embodiment of the antenna control device of the present invention.

FIG. 10 is a configuration diagram showing an example of a conventional antenna control device.

[Explanation of symbols]

1, 1a, 1b, 1c Control trunk 2, 2a, 2b, 2c Internal connection trunk 3, 3a, 3b, 3c Relay connection trunk 4 External connection trunk 11a Digital transceiver 21a, --21k Digital transceiver 31a , -31m, 31a1, 31a2 Digital transceiver 32, 32a, 32b, 32c Antenna branch / combiner 33, 33a, 33b, 33c Antenna branch / combiner 41a, -41n Digital transceiver 42 Telephone line 43 Antenna branching / combining device 51 Antenna for external line connection trunk 52 Telephone line or data line 53, 53a, 53b Outdoor antenna 54, 54a, 54b Connection cable 55, 55a, 55b Connection cable 56, 57, 58, 59 Connection cable 60 a, 6 0b , 60c Indoor antennas 61, 62, 62a, 62b, 62c, 63 Connection terminals 63a, 63b, 63c, 63d, 64 Connection terminals 71a, 72a, 73a Bandpass filters 81a, 81a1, 81a2 Digital transmitters 82a, 82a1 , 82a2 Digital receivers 83a, 83a1, 83a2 Synthesizers 84a, 84a1, 84a2 Baseband ICs 85a, 85a1, 85a2 Control unit 86a, 87a Switch 88a Down converter 89a Upconverter 90 Transmission / reception time slot adjustment circuit 91a Variable attenuator 92a Variable delayer In 101 External base station 102, 102a, 102b, 102c Antenna control device 103a, 103b, 103c Indoor antenna 104a, 104b, 104c Mobile terminal 10 d, 104e, 104e, 104f Mobile terminal 105 CATV device 106a, 106b Bidirectional booster for coaxial cable 107 for connection 108a, 108b, 108c, 108d Coaxial cable coupler for connection 108e Coaxial cable coupler for connection 108f Mixer 111a, 111b Reception timing from external connection trunk 112a, 112b Reception timing from mobile terminal 113a, 113b Transmission timing to external connection trunk 114a, 114b Transmission timing to mobile terminal 115a, 115b, 116a, 116b Downward digital signal 117a, 117b , 118a, 118b upstream of the digital signal 121 fixed end end 122 digital transceiver 123 operation control unit 124 handset 125 phone connection adapter 126 already Existing or standard telephones 131a, 131b, 131c Converter for converting between optical signals and high-frequency signals 132 Optical cable

Claims (11)

(57) [Claims] In a digital mobile radio system constituting a microcell, a digital transceiver is provided with:
External connection trunk for connecting to a telephone line or data line, and cascade connection, time slot conversion, code conversion, or a combination thereof for performing a relay connection between the external connection trunk or an external base station and a mobile terminal. A trunk connection trunk and an extension connection trunk for performing an extension connection by cascade connection or time slot conversion or code conversion or a combination thereof between a plurality of mobile terminals,
The antenna of the mobile terminal and the first of the relay connection trunk
And an antenna connected to a second antenna terminal connected to the relay connection trunk by spatially coupling the antenna terminal of the extension connection trunk and an antenna connected to the antenna terminal of the extension connection trunk via a branching / combining device. The external connection trunk or the antenna connected to the external base station is connected by a space, and the relay connection trunk or
Is digital from the high-frequency signal received by the extension connection trunk
The signal is reproduced, and the reproduced digital signal is converted to a high-frequency signal.
Antenna control apparatus characterized in that modulation is carried out 2. A mobile radio system digital constituting the microcell, the transceiver of digital
An outer <br/> line connection trunk that is connected to the structure by phone line or data line Ri, the antenna end of the external connection trunk
Twisted pair cable or coaxial cable
Cable or optical cable or a combination of these
Provide a transmission cable and the transmission cable at an interval
Multiple couplers and digital transceiver
Separate from the first connection terminal configured and connected to the coupler.
A relay connection preparative <br/> rank for performing relay connection cascaded or time slot conversion or transcoding or in combination with the second connecting terminals provided on, the transceiver of digital Composed pertinent
Cascade connection or time slot between the second connection terminals
Conversion or code conversion or a combination of these
Extension connection trunk for making extension connections
High-frequency signal through the antenna connected to connection terminal 2
Mobile terminals that transmit and receive
Link and extension trunks
The digital signal is generated, a high digital signal the reproduction
Antenna control device for modulating a frequency signal 3. A digital system for forming a micro cell.
In mobile radio systems, digital transceivers
Connected to a telephone line or data line
Line connection trunk and antenna end of the external line connection trunk
Twisted pair cable or coaxial cable
Cable or optical cable or a combination of these
Provide a transmission cable and the transmission cable at an interval
Multiple couplers and digital transceiver
Separate from the first connection terminal configured and connected to the coupler.
Cascade connection with the second connection terminal
Or time slot conversion or code conversion or
A relay connection token for performing a relay connection by combining
Rank and the antenna connected to the second connection terminal
Mobile terminals that transmit and receive wireless signals through
The digital signal is converted from the high-frequency signal received by the relay connection trunk.
And reproduces the generated digital signal as a high-frequency signal.
To the outside connection trunk and the relay trunk.
Of the high-frequency signal transmitted between
Of a high-frequency signal transmitted between the mobile terminal and the mobile terminal.
Protocol where the protocols are the same or similar.
Antenna control device 4. A digital transmission system connected to the coupler.
Claims, characterized in that it comprises a adapter for connecting the fixed terminal or a phone that is configured by the receiver
4. The antenna control device according to claim 2 or 3. 5. The relay connection trunk according to claim 1 , wherein the first relay connection trunk performs tandem relay between the external line connection trunk or an external base station and the second relay connection trunk. The antenna control device according to claim 1, 6. The external connection trunks and high for the frequency band to connect the said relay connection trunks and the mobile terminal of the high-frequency signal for coupling between the relay connection trunk
Set the frequency band to the same or lower
Or the external connection trunk and the trunk connection trunk
Up and down the frequency band of the high-frequency signal for connection
The direction of the relay connection trunk and the mobile terminal.
The high frequency signal frequency band for coupling between
The same frequency band is set in the same direction and the conversion means for the relay connection trunk to perform conversion between the frequency bands is provided.
Claim 2 characterized by having
Item 4. An antenna control device according to item 3. 7. A plurality of trunk connection trunks are connected to the same outside line connection.
The relay device according to claim 2 , further comprising timing adjustment means for making the timing at which the mobile terminal receives the digital signal uniform when relaying the digital signal in the down direction from the connection trunk. In the third paragraph
The described antenna control device 8. There there are a plurality of relay connection trunk when the adapter to connect the fixed terminal or phone transmits uplink digital signal, is the outside line connection trunk
Claims second term or third serial mounting of the antenna controller in section, characterized in that it comprises a timing adjusting means for equalizing the timing of receiving the uplink digital signal received 9. plurality of relay connection trunk is the amplitude of the upstream of the high-frequency signal to be transmitted to the outside line connection preparative <br/> rank, the magnitude of the high-frequency signal received from the same mobile terminal has a transmission output adjusting means for adjusting response, the outside
Maximum Ratio Diversity
Claims second characterized that you have a function of b
Item 4. The antenna control device according to item 3 or 3. 10. plurality of external connection trunk is assigned a different frequency bands on up direction and the down direction, downstream of the digital signal to which the first external connection trunk is transmitted to the person the relay connection trunk Has a free time slot in
Sending a digital signal between the second outside line connection trunk is the free time at the same frequency as the frequency of those said relay connection the first outside line connection trunk to trunk transmission slot
Increase the transmission capacity in the cable by receiving
Antenna control device according to the second term or third term claims, characterized in that 11. walk transmission means cable telephone lines for coupling between the external connection trunk and the RELAY connection trunk walk is the fixed end late or the adapter
Is the cable for LAN or the cable for bidirectional CATV
, And the one having an amplification means for amplifying the signal in the middle of the upstream and downstream of the transmission cable are different or uplink signal frequency band and the downlink signal or the transmission cable different frequency bands Or this
4. The antenna control device according to claim 2, wherein the antenna control device is a combination of the two.