JP2001257634A - Base station antenna system for mobile communication - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a base station antenna system for mobile communication having an adaptive antenna function where an antenna section can be prevented from becoming large. SOLUTION: The antenna system is provided with an antenna section 11 having an antenna element 11a with a two-story configuration of an adaptive processing antenna 13a and a main antenna 12a and having an antenna element 11b with a two-story configuration of an adaptive processing antenna 13b and a main antenna 12b, with an adaptive control section 32a that combines an output of the main antenna 12a with an output of the adaptive processing antenna 13b and an adaptive control section 32b that combines the output of the main antenna 12b with the output of the adaptive processing antenna 13a to respectively provide an amplitude and a phase to eliminate an interference signal to a diversity control section 33, and with the diversity control section 33 that applies diversity synthesis to the outputs of the adaptive control sections 32a and 32b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base station antenna device for mobile communication, which improves communication quality while improving the installability of an antenna.

[0002]

2. Description of the Related Art FIG. 7 is a block diagram showing a conventional base station antenna apparatus for mobile communication. In the drawing, reference numeral 1 denotes an antenna section on the premise of diversity control using a 2-antenna element configuration, and 1a and 1b denote antenna elements. is there.

Next, the operation will be described. When diversity control is assumed, the antenna unit 1 of each base station antenna device is configured by two antenna elements 1a and 1b. The received signals of these antenna elements 1a and 1b are respectively output to the subsequent radio control devices, and are demodulated and diversity-combined in the respective channels.

[0004]

Since the conventional base station antenna apparatus for mobile communication is configured as described above,
In a case where the antenna unit 1 functions as an adaptive antenna for removing an interference signal, a plurality of antenna units 1 are further provided.
There is a problem that it needs to be installed around, and the installation area becomes large.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. Even if a function as an adaptive antenna for removing an interference signal is provided, it is possible to reduce the size of the antenna unit and reduce the installation area. An object of the present invention is to obtain a base station antenna device for mobile communication that improves the problem.

[0006]

According to the present invention, a base station antenna apparatus for mobile communication according to the present invention comprises an antenna section in which each antenna element has a two-stage configuration consisting of a main antenna and an adaptive processing antenna, and one antenna element. Combining the output of the main antenna and the output of the adaptive processing antenna of the other antenna element, and combining the output of the main antenna of the other antenna element and the output of the adaptive processing antenna of one antenna element, respectively, An adaptive control unit for providing an amplitude and a phase for eliminating the noise, and a diversity control unit for diversity-combining the output of the adaptive control unit.

A base station antenna apparatus for mobile communication according to the present invention is used as a main antenna by switching the connection between an antenna unit in which each antenna element is composed of a plurality of radiating elements and a radiating element according to a communication environment. An element switching unit that controls a distribution ratio of a radiating element and a radiating element used as an adaptive processing antenna, and a combination of an output of a main antenna of one antenna element and an output of an adaptive processing antenna of the other antenna element of the element switching unit. In addition, an output of the main antenna of the other antenna element and an output of the adaptive processing antenna of the one antenna element are combined, and an output of the adaptive control section and an output of the adaptive control section which respectively provide an amplitude and a phase for removing an interference signal. A diversity control unit for performing diversity combining. .

A base station antenna apparatus for mobile communication according to the present invention has an antenna unit in which each antenna element is composed of a plurality of radiating elements, a plurality of amplifiers for amplifying the output of each radiating element, and a communication environment. By selecting the output from each amplifier, the distribution ratio between the radiating element used as the main antenna of one antenna element and the radiating element used as the adaptive processing antenna is controlled, and the radiating element used as the main antenna of the other antenna element And an element selector for controlling the distribution ratio of the radiating element used as the adaptive processing antenna, and combining the output of the main antenna of one antenna element and the output of the adaptive processing antenna of the other antenna element of the element selector. And the output of the main antenna of the other antenna element and the adaptability of the one antenna element. Combining the output of the processing antenna, but with a adaptive controller which gives the amplitude and phase to remove each interfering signal, and a diversity controller for diversity combining the output of the adaptive controller.

[0009] A base station antenna apparatus for mobile communication according to the present invention comprises an electro-optical conversion section for converting an electric signal of an antenna section, an element switching section, or an amplifier into an optical signal, and an optical fiber for transmitting the converted optical signal. And a photoelectric conversion unit that converts the transmitted optical signal into an electric signal and outputs the electric signal to an adaptive control unit or an element selection unit.

[0010] A base station antenna apparatus for mobile communication according to the present invention performs control by combining adaptive control and diversity control during transmission and reception.

The base station antenna apparatus for mobile communication according to the present invention is based on the premise that diversity control is performed by a two-antenna element configuration covering the cover area, and the diversity is achieved by a two-antenna element configuration covering an adjacent cover area. An adjacent antenna unit assuming control and one antenna element of the antenna unit as a main antenna, and combining one antenna element of the adjacent antenna unit as an adaptive processing antenna, and using the other antenna element of the antenna unit As the main antenna, the other antenna element of the adjacent antenna unit is combined as an adaptive processing antenna, an adaptive control unit that provides an amplitude and a phase for removing an interference signal, and a diversity control unit that diversity-combines the output of the adaptive control unit. Equipped It is.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. Embodiment 1 FIG. FIG. 1 is a configuration diagram showing a base station antenna apparatus for mobile communication according to a first embodiment of the present invention. In the figure, reference numeral 11 denotes an antenna unit on the assumption of diversity control using a two-antenna element configuration, and 11a and 11b denote antenna elements. , 12a are the main antenna of the antenna element 11a,
12b is a main antenna of the antenna element 11b, 13a is an adaptive processing antenna provided on the upper stage of the main antenna 12a, and 13b is an adaptive processing antenna provided on the upper stage of the main antenna 12b. And adaptive processing antenna 13a,
Main antenna 12b and adaptive processing antenna 13b
Are arranged in a two-stage configuration. Reference numeral 31 denotes a wireless control device that processes a signal received by the antenna unit 11. In this wireless control device 31, 32a
Is an adaptive control unit that combines the output of the main antenna 12a of the antenna element 11a and the output of the adaptive processing antenna 13b of the antenna element 11b, and provides an amplitude and a phase for removing an interference signal. 32b is a main antenna of the antenna element 11b. Output of 12b and antenna element 1
An adaptive control unit for combining the output of the adaptive processing antenna 13a of FIG. 1a and providing an amplitude and a phase for removing an interference signal, and 33 is an adaptive control unit 3
This is a diversity control section for diversity combining the outputs of 2a and 32b.

Next, the operation will be described. As shown in FIG. 1, a two-stage configuration is adopted in which adaptive processing antennas 13a and 13b are stacked on main antennas 12a and 12b. In the wireless control device 31, the adaptive control unit 32a combines the output of the main antenna 12a of the antenna element 11a with the output of the adaptive processing antenna 13b of the antenna element 11b, and the adaptive control unit 32b controls the main control of the antenna element 11b. The output of the antenna 12b and the output of the adaptive processing antenna 13a of the antenna element 11a are combined to give an amplitude and a phase for removing an interference signal. In this way, a processing system capable of removing two sets of interference can be constructed, and the respective outputs are diversity-combined by the diversity control unit 33 in each channel as in the related art.

As described above, the first embodiment has a two-stage configuration in which the adaptive processing antennas 13a and 13b are stacked on the main antennas 12a and 12b.
When constructing an adaptive processing system for performing interference removal, it is not necessary to consider the arrangement position of a new antenna, and the installation area of the antenna can be improved.

In the first embodiment, the adaptive processing antenna 13 is placed on the main antennas 12a and 12b.
a, 13b are stacked, but the main antennas 12a, 12b
The adaptive processing antennas 13a and 13b may be provided under the two-stage configuration, and the same effect can be obtained.

Embodiment 2 FIG. 2 is a configuration diagram showing a base station antenna device for mobile communication according to a second embodiment of the present invention. In the drawing, reference numeral 14a denotes a plurality of radiating elements constituting an antenna element 11a, and 14b denotes an antenna element 11b.
Are a plurality of radiating elements. Reference numeral 15a is provided corresponding to the antenna element 11a and is freely connectable to each radiating element 14a, and is used as a radiating element used as a main antenna and an adaptive processing antenna by switching connection with the radiating element 14a according to a communication environment. An element switching section 15b for controlling the distribution ratio of the radiating elements is provided in correspondence with the antenna element 11b and is freely connectable to each of the radiating elements 14b. By switching the connection with the radiating element 14b in accordance with the communication environment, the main part is provided. An element switching unit that controls a distribution ratio between a radiating element used as an antenna and a radiating element used as an adaptive processing antenna. The output of the radiating element used as the main antenna of the element switching section 15a and the output of the radiating element used as the adaptive processing antenna of the element switching section 15b are converted into an adaptive control section 32.
a, and outputs the output of the radiating element used as the main antenna of the element switching section 15b and the output of the radiating element used as the adaptive processing antenna of the element switching section 15a to the adaptive control section 32b. The other configuration is the same as that of the first embodiment, and the description thereof will not be repeated.

Next, the operation will be described. As shown in FIG. 2, in a case where each antenna element 11a, 11b has a configuration in which a plurality of radiating elements 14a, 14b are arranged in a vertical direction to obtain a desired pattern, the element switching unit 15a radiates the radiation according to the communication environment. By switching the connection with the element 14a, the distribution ratio of the radiating element used as the main antenna and the radiating element used as the adaptive processing antenna is controlled. The element switching unit 15b controls the distribution ratio of the radiating element used as the main antenna and the radiating element used as the adaptive processing antenna by switching the connection with the radiating element 14b according to the communication environment. This communication environment is, for example, when many mobile communication terminals are located in the coverage area under their jurisdiction, and when it is desired to give priority to the amount of communication data with those mobile communication terminals, the distribution of the main antenna over the adaptive processing antenna If it is desired to increase the ratio while giving priority to the removal of jamming radio waves, control is performed so that the distribution ratio of the adaptive processing antenna is higher than that of the main antenna. Hereinafter, the operations of the adaptive control units 32a and 32b and the diversity control unit 33 are the same as in the first embodiment.

As described above, in the second embodiment, the antenna elements 11a and 11b are connected to the plurality of radiating elements 14a and 14a.
4b, and the element switching units 15a and 15b divide the antenna elements 11a and 11b into two parts to control the distribution ratio of the radiating element used as the main antenna and the radiating element used as the adaptive processing antenna. Therefore, apparently, the interference removal and the diversity combining can be made compatible with the two antenna elements 11a and 11b, and it is not necessary to consider the arrangement position of the new antenna, and the installation area of the antenna can be improved. Further, by the element switching units 15a and 15b,
Radiating elements 14a, 14a according to the communication environment in the coverage area
By switching the connection with 4b, adaptive control in consideration of the communication environment can be performed.

Embodiment 3 FIG. 3 is a block diagram showing a base station antenna device for mobile communication according to a third embodiment of the present invention. In the drawing, reference numeral 16a denotes a plurality of amplifiers for amplifying the output of each radiating element 14a of the antenna element 11a;
b is a plurality of amplifiers for amplifying the output of each radiating element 14b of the antenna element 11b. Numeral 34 is provided in the wireless control device 31, and individually selects the output from each of the amplifiers 16a and 16b in accordance with the communication environment, so that the antenna element 1
The distribution ratio between the radiating element 14a used as the main antenna and the radiating element 14a used as the adaptive processing antenna is controlled, and the radiating element 14b used as the main antenna of the antenna element 11b and the radiating element 14b used as the adaptive processing antenna are controlled. This is an element selection unit for controlling the ratio. The output of the radiating element 14a used as the main antenna of the antenna element 11a of the element selecting unit 34 and the output of the radiating element 14b used as the adaptive processing antenna of the antenna element 11b are output to the adaptive control unit 32a, and the main control of the antenna element 11b is performed. Output of radiating element 14b used as antenna and antenna element 1
The output of the radiating element 14a used as the adaptive processing antenna 1a is output to the adaptive control unit 32b. The other configuration is the same as that of the second embodiment, and the description thereof will not be repeated.

Next, the operation will be described. As shown in FIG. 3, a plurality of amplifiers 16a and 16b for amplifying the output of each of the radiating elements 14a and 14b are provided to increase the level of a received signal, and to be provided at a location remote from the antenna unit 11. 31 enables the output of each radiating element 14a, 14b. The element selecting unit 34 individually selects the outputs from the amplifiers 16a and 16b according to the communication environment, thereby distributing the radiating element 14a used as the main antenna of the antenna element 11a and the radiating element 14a used as the adaptive processing antenna. The radiating element 14 which controls the ratio and is used as the main antenna of the antenna element 11b
b and a radiating element 14b used as an adaptive processing antenna. This communication environment is the same as in the second embodiment. Further, the element selecting section 34 can collectively input the reception signals of the respective radiating elements 14a and 14b which have been output from the respective amplifiers 16a and 16b and have increased levels, and furthermore, receive the received signals in accordance with the communication environment. Since signals can be individually selected, precise selection can be realized, and highly accurate adaptive control and diversity control in consideration of a communication environment can be performed. Hereinafter, adaptive control units 32a and 32b,
The operation with the diversity control unit 33 is the same as in the first embodiment.

As described above, in the third embodiment, a plurality of amplifiers 16a and 16b for amplifying the outputs of the radiating elements 14a and 14b are provided. In the element selecting section 34, the amplifiers 16a and 16b are set according to the communication environment. Since the outputs from 16b are individually selected, it is not necessary to consider the arrangement position of a new antenna, and the installation area of the antenna can be improved. In addition, by providing a plurality of amplifiers 16a and 16b and increasing the level of the received signal, a radio control device 31 provided at a location remote from the antenna unit 11 is provided.
The output of each of the radiating elements 14a and 14b can be transmitted at a good reception level, and the element selecting section 34 can collectively input the received signals of each of the radiating elements 14a and 14b. Since the received signals can be individually selected according to the communication environment, precise selection can be realized, and highly accurate adaptive control and diversity control can be performed in consideration of the communication environment.

Embodiment 4 FIG. 4 is a configuration diagram showing a base station antenna apparatus for mobile communication according to a fourth embodiment of the present invention. In the figure, reference numeral 17 denotes each of the amplifiers 16a and 16b.
An electric-to-optical converter for converting the electric signal into an optical signal; 18, an optical fiber for transmitting the optical signal converted by the electro-optical converter 17; 35, provided on the wireless controller 31 side; The photoelectric conversion unit converts a signal into an electric signal and outputs the electric signal to the adaptive control units 32a and 32b. The other configuration is the same as that of the third embodiment, and the description thereof will not be repeated.

Next, the operation will be described. The electric-optical converter 17 converts the electric signals of the amplifiers 16 a and 16 b into optical signals, and transmits the optical signals through the optical fiber 18. The photoelectric conversion unit 35 converts the optical signal transmitted by the optical fiber 18 into an electric signal and outputs the electric signal to the adaptive control units 32a and 32b.

As described above, in the fourth embodiment, the signals from the amplifiers 16a and 16b are transmitted by the optical fiber 18, so that even if there is a distance from the antenna unit 11 to the wireless control device 31, Transmission loss can be greatly reduced, power consumption can be reduced, and communication quality can be improved.

In the fourth embodiment, each amplifier 1
Although the signals of 6a and 16b were transmitted through the optical fiber 18, the antenna unit 11 or the element switching units 15a and 15b
May be transmitted by the optical fiber 18, or the transmitted signal may be output to the element selection unit 34.

Embodiment 5 In Embodiments 1 to 4, the case where the base station antenna apparatus for mobile communication is received has been described. However, the configuration shown in Embodiments 1 to 4 is also used for transmission, and The control may be performed by combining the control and the diversity control. At the time of transmission, by performing the same system processing as at the time of reception, unnecessary radiation in the direction of the interfering user is reduced, and by scanning the beam in the direction of the desired user, transmission power is reduced and communication quality is improved. be able to.

Embodiment 6 FIG. FIG. 5 is a block diagram showing a base station antenna apparatus for mobile communication according to a sixth embodiment of the present invention. In the figure, reference numeral 19 denotes a base station antenna apparatus that covers the cover area, and reference numeral 20 denotes a base station that covers an adjacent cover area. A station antenna device. Reference numeral 21 denotes an antenna unit on the premise of diversity control using a two-antenna element configuration, and reference numerals 21a and 21b denote antenna elements. 2
Reference numeral 2 denotes an adjacent antenna unit on the premise of diversity control using a two-antenna element configuration, and reference numerals 22a and 22b denote antenna elements. The antenna unit 21 and the adjacent antenna unit 22 are configured in the same manner as in the related art. 41,
42 is a radio control device of the base station antenna devices 19 and 20,
43a designates the antenna element 21a of the antenna section 21 as a main antenna and the antenna element 22 of the adjacent antenna section 22
a as an adaptive processing antenna, and an adaptive control unit for giving an amplitude and a phase for removing an interference signal. 43b is an antenna element 21 of the antenna unit 21.
b is a main antenna, and an adaptive control unit that combines the antenna element 22b of the adjacent antenna unit 22 as an adaptive processing antenna and provides an amplitude and a phase for removing an interference signal. 45 is an adaptive control unit 43
and a diversity control unit for diversity-combining the outputs of a and 43b. 44a is an adaptive control unit for combining the antenna element 22a as a main antenna and the antenna element 21a as an adaptive processing antenna, and 44b is an adaptive control unit for the antenna element 22b as a main antenna.
This is an adaptive control unit that combines b as an adaptive processing antenna. 46 is an adaptive control unit 44
and a diversity control unit for diversity-combining the outputs of a and 44b.

FIG. 6 is a plan view showing an arrangement of a base station antenna apparatus for mobile communication according to a sixth embodiment of the present invention. In FIG. 6, when cover area 1 is the cover area, FIG. Two base station antenna devices 19 are provided in the cover area 1.
The base station antenna devices 20 adjacent to the two base station antenna devices 19 respectively in the cover areas 2 and 3 adjacent to
Is an example in which is provided.

Next, the operation will be described. In the first to fifth embodiments, an adaptive processing antenna is provided in addition to the main antenna. In the sixth embodiment, the configuration of the antenna unit is the same as that of the related art, and the base unit provided in the adjacent cover area is provided. The adjacent antenna section 22 of the station antenna device 20 is used as an adaptive processing antenna. In the radio control device 41 of the base station antenna device 19 provided in the cover area 1, the adaptive control unit 43 a uses the antenna element 21 a of the antenna unit 21 as a main antenna and the antenna element 2 of the adjacent antenna unit 22.
2a is combined as an adaptive processing antenna to give an amplitude and a phase for removing an interference signal, and the adaptive control unit 43b sets the antenna element 21b of the antenna unit 21 as a main antenna and sets the antenna element 22b of the adjacent antenna unit 22 as the main antenna. Combined as an adaptive processing antenna to provide an amplitude and a phase for removing an interference signal. The diversity control unit 45 includes the adaptive control unit 4
The outputs of 3a and 43b are diversity-combined. Similarly, in the radio controller 42 of the base station antenna device 20 provided in the cover areas 2 and 3, the antenna unit 21 of the base station antenna device 19 provided in the adjacent cover area 1 is also used as an adaptive processing antenna. Things.

As described above, according to the sixth embodiment, the configuration of the antenna unit is made the same as that of the prior art, and the adjacent antenna unit 22 of the base station antenna device 20 provided in the adjacent cover area is used for adaptive processing. Since it is used as an antenna, it is possible to achieve both interference cancellation and diversity combining with the same antenna configuration as the conventional technology, eliminating the need to consider the new antenna placement position and improving the antenna installation area. it can.

[0031]

As described above, according to the present invention, each antenna element has an upper and lower two-stage configuration of the main antenna and the adaptive processing antenna, the output of the main antenna of one antenna element and the other Combining the output of the adaptive processing antenna of the other antenna element with the output of the main antenna of the other antenna element and the output of the adaptive processing antenna of one antenna element, respectively, the amplitude and phase for removing the interference signal Since the adaptive control unit that provides the adaptive control unit and the diversity control unit that performs diversity combining of the output of the adaptive control unit is configured, when constructing an adaptive processing system for performing interference removal, a new antenna arrangement position is set. There is no need to consider it, and the effect of improving the antenna installation area It is obtained.

According to the present invention, the radiating element used as the main antenna by switching the connection between the radiating element and the radiating element according to the communication environment and the antenna for adaptive processing are provided. An element switching unit for controlling a distribution ratio of a radiating element used as the antenna unit, and combining an output of a main antenna of one antenna element of the element switching unit and an output of an adaptive processing antenna of the other antenna element, and the other antenna element Combining the output of the main antenna and the output of the adaptive processing antenna of one of the antenna elements, an adaptive control unit for providing an amplitude and a phase for removing an interference signal, and a diversity control unit for diversity combining the output of the adaptive control unit. So that two seemingly It is possible to achieve both interference cancellation and diversity combining in antenna element, it is not necessary to consider the arrangement position of a new antenna, it is possible to improve the footprint of the antenna. Further, by switching the connection with the radiating element according to the communication environment by the element switching unit, an effect that adaptive control in consideration of the communication environment can be performed can be obtained.

According to the present invention, an antenna unit in which each antenna element is composed of a plurality of radiating elements, a plurality of amplifiers for amplifying the output of each radiating element, and an output from each amplifier are selected according to a communication environment. By controlling the distribution ratio of the radiating element used as the main antenna of one antenna element and the radiating element used as the adaptive processing antenna, the radiating element used as the main antenna of the other antenna element and the adaptive processing antenna are used. An element selector for controlling the distribution ratio of the radiating element, and combining the output of the main antenna of one antenna element and the output of the adaptive processing antenna of the other antenna element of the element selector, and The output of the antenna and the output of the adaptive processing antenna of one antenna element are combined. And an adaptive control unit for giving an amplitude and a phase for removing an interference signal, respectively, and a diversity control unit for diversity combining the output of the adaptive control unit, so that it is necessary to consider a new antenna arrangement position. And the installation area of the antenna can be improved. Also, by providing a plurality of amplifiers and increasing the level of the received signal, it is possible to transmit the output of each radiating element at a good receiving level to an element selecting section provided at a location away from the antenna section. In the element selection unit, the received signals of the respective radiating elements can be input collectively, and further, the received signals can be individually selected according to the communication environment.
A precise selection can be realized, and an effect of performing highly accurate adaptive control and diversity control in consideration of the communication environment can be obtained.

According to the present invention, an electro-optical converter for converting an electric signal of an antenna unit, an element switching unit, or an amplifier into an optical signal, an optical fiber for transmitting the converted optical signal, and an optical fiber for transmitting the transmitted optical signal. Since it is configured to include an optical control unit that converts the signal into an electric signal and outputs the signal to an adaptive control unit or an element selection unit, an antenna unit, an element switching unit, or an amplifier to an adaptive control unit or an element selection unit. Even when there is a distance, transmission loss can be greatly reduced, and the effect of reducing power consumption and improving communication quality can be obtained.

According to the present invention, at the time of transmission and at the time of reception, control is performed by combining adaptive control and diversity control. Therefore, unnecessary radiation in the direction of the interfering user is reduced, and the beam is transmitted in the direction of the desired user. The effect of being able to reduce transmission power and improve communication quality is obtained by scanning.

According to the present invention, the antenna section is premised on diversity control by a two-antenna element configuration covering the cover area, and the adjacent antenna is premised on diversity control by a two-antenna element configuration covering the adjacent cover area. And one antenna element of the antenna section as a main antenna, one antenna element of an adjacent antenna section as an adaptive processing antenna, and the other antenna element of the antenna section as a main antenna, and the adjacent antenna section Combining the other antenna element as an adaptive processing antenna, an adaptive control unit that provides an amplitude and a phase for removing an interference signal, and a diversity control unit that diversity-combines the output of the adaptive control unit. Same as conventional technology Such a configuration of the antenna unit, it is possible to achieve both interference cancellation and diversity combining, it is not necessary to consider the arrangement position of a new antenna, the effect capable of improving the footprint of the antenna is obtained.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a base station antenna device for mobile communication according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram illustrating a base station antenna device for mobile communication according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a base station antenna device for mobile communication according to a third embodiment of the present invention.

FIG. 4 is a configuration diagram illustrating a base station antenna device for mobile communication according to a fourth embodiment of the present invention.

FIG. 5 is a configuration diagram illustrating a base station antenna device for mobile communication according to a sixth embodiment of the present invention.

FIG. 6 is a plan view showing an arrangement of a base station antenna apparatus for mobile communication according to a sixth embodiment of the present invention.

FIG. 7 is a configuration diagram showing a conventional base station antenna device for mobile communication.

[Explanation of symbols]

11 antenna part, 11a, 11b, 21a, 21b,
22a, 22b antenna element, 12a, 12b main antenna, 13a, 13b adaptive processing antenna, 14a, 14b radiating element, 15a, 15b element switching section, 16a, 16b amplifier, 17 electro-optical conversion section, 18 optical fiber, 19, 20 Base station antenna device, 21 related antenna unit, 22 adjacent antenna unit,
31, 41, 42 wireless control devices, 32a, 32b, 4
3a, 43b, 44a, 44b adaptive control unit,
33, 45, 46 diversity control unit, 34 element selection unit, 35 photoelectric conversion unit.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shuji Urasaki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term (reference) 5J021 AA02 AA06 AB02 CA06 DB02 DB03 DB04 FA06 FA20 FA26 FA29 FA31 FA32 GA01 GA02 GA08 HA05 HA10 5K059 CC03 DD32 DD37

Claims (6)

[Claims] An antenna unit in which each antenna element has a two-stage configuration of a main antenna and an adaptive processing antenna on the premise of diversity control by a two-antenna element configuration, and a main antenna of one of the antenna elements of the antenna unit And the output of the adaptive antenna of the other antenna element are combined with the output of the main antenna of the other antenna element and the output of the adaptive antenna of the other antenna element to remove interference signals. A base station antenna device for mobile communication, comprising: an adaptive control unit for giving an amplitude and a phase to be changed; and a diversity control unit for diversity-combining the output of the adaptive control unit. 2. Assuming diversity control with a two-antenna element configuration, each antenna element is provided with a plurality of radiating elements, and each antenna element of the antenna section is provided and is freely connectable to each radiating element. An element switching unit that controls the distribution ratio of the radiating element used as the main antenna and the radiating element used as the adaptive processing antenna by switching the connection with the radiating elements according to the communication environment; and one of the element switching units. While combining the output of the main antenna of the antenna element and the output of the adaptive processing antenna of the other antenna element,
An adaptive control unit that combines the output of the main antenna of the other antenna element and the output of the adaptive processing antenna of the one antenna element to provide an amplitude and a phase for removing an interference signal, and a diversity combination of the output of the adaptive control unit. A base station antenna device for mobile communication, comprising: a diversity control unit. 3. An antenna unit in which each antenna element is composed of a plurality of radiating elements, and a plurality of amplifiers that amplify the output of each radiating element of the antenna section, on the premise of diversity control using a two-antenna element configuration. By selecting the output from each of the amplifiers according to the environment, the distribution ratio between the radiating element used as the main antenna of one antenna element and the radiating element used as the adaptive processing antenna is controlled, and the main antenna of the other antenna element is controlled. An element selection unit that controls a distribution ratio of a radiating element used as an antenna and a radiating element used as an adaptive processing antenna,
In addition to combining the output of the main antenna of one of the antenna elements and the output of the adaptive processing antenna of the other antenna element, the output of the main antenna of the other antenna element and the adaptive processing of the one antenna element A base station antenna apparatus for mobile communication, comprising: an adaptive control unit that combines an output of an antenna to provide an amplitude and a phase for removing an interference signal, and a diversity control unit that diversity-combines the output of the adaptive control unit. 4. An electro-optical conversion section for converting an electric signal of an antenna section, an element switching section, or an amplifier into an optical signal, an optical fiber for transmitting the optical signal converted by the electro-optical conversion section, and a transmission by the optical fiber. 4. An optical control unit for converting the optical signal into an electric signal and outputting the electric signal to an adaptive control unit or an element selecting unit. Base station antenna device for mobile communication. 5. The method according to claim 1, wherein the control is performed by combining the adaptive control and the diversity control at the time of transmission and at the time of reception.
The base station antenna device for mobile communication according to claim. 6. An antenna unit assuming diversity control by a two-antenna element configuration covering said cover area, an adjacent antenna unit assuming diversity control by a two-antenna element configuration covering an adjacent cover area, One antenna element of the antenna unit is used as a main antenna, and one antenna element of the adjacent antenna unit is combined as an adaptive processing antenna, and the other antenna element of the antenna unit is used as a main antenna, and the other antenna element of the adjacent antenna unit is used as the main antenna. A base station antenna for mobile communication, comprising: an adaptive control unit that combines the antenna elements of the above as adaptive processing antennas and provides an amplitude and a phase for removing an interference signal, respectively, and a diversity control unit for diversity-combining the output of the adaptive control unit. apparatus.