JP2003332969A - Base station device for cdma mobile communication - Google Patents

Base station device for cdma mobile communication

Info

Publication number
JP2003332969A
JP2003332969A JP2002133740A JP2002133740A JP2003332969A JP 2003332969 A JP2003332969 A JP 2003332969A JP 2002133740 A JP2002133740 A JP 2002133740A JP 2002133740 A JP2002133740 A JP 2002133740A JP 2003332969 A JP2003332969 A JP 2003332969A
Authority
JP
Japan
Prior art keywords
transmission
signal
amplitude
phase
control
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2002133740A
Other languages
Japanese (ja)
Other versions
JP3670250B2 (en
Inventor
Yoshihiko Takeuchi
嘉彦 竹内
Hirohisa Hirayama
浩久 平山
Toru Haneda
亨 羽田
Koji Fukino
幸治 吹野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Radio Co Ltd
Original Assignee
Japan Radio Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP2002133740A priority Critical patent/JP3670250B2/en
Publication of JP2003332969A publication Critical patent/JP2003332969A/en
Application granted granted Critical
Publication of JP3670250B2 publication Critical patent/JP3670250B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device which can adjust an amplitude and a phase of a transmission circuit correctly even if an output level of a transmitter is changed, and which keeps a transmission antenna directivity in a normal state. <P>SOLUTION: A transmission reference signal corrector 72 corrects a transmission reference signal as a reference which is supplied to an error detector 62 for controlling the amplitude and phase of the transmission circuit. A control volume determining device 73 is provided to determine control volume Wt of an amplitude and phase controller 31 on the transmitting side against a reference value Wo and its allowable range ΔW. A table corrector 74 and a transmission control signal setting device 75 are provided which increase or decrease control volume of transmission power by a transmission control signal TCS based on the result of determination by the device 73. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明はＣＤＭＡ移動通信基
地局装置に関し、特に複数のアンテナ素子から成るアレ
イ・アンテナを用いて、複数の移動局それぞれに対する
アンテナ指向性を形成してこれら複数の移動局との間で
通信を行うＣＤＭＡ移動通信基地局装置に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CDMA mobile communication base station apparatus, and in particular, an array antenna composed of a plurality of antenna elements is used to form antenna directivity for each of a plurality of mobile stations. Belongs to a CDMA mobile communication base station device that communicates with

【０００２】[0002]

【従来の技術】まず最初に、アレイ・アンテナを用いな
いセル方式のＣＤＭＡ移動通信基地局の場合、各基地局
は管轄エリアに対して報知情報を通知する信号を送信す
る。この際、各移動局は複数の基地局からの報知情報を
受信し、この受信電力もしくは受信Ｅｂ／Ｉｏ（１Ｈｚ
当りの干渉電力Ｉｏに対する１ビット当りのエネルギ）
が最大となる基地局を選択して位置登録を行い、在圏す
ることを通知する。基地局の構成するセルが複数の固定
指向性のアンテナにより分割されセクタを構成する場合
においても、同様に受信電力もしくは受信Ｅｂ／Ｉｏが
最大になるセクタを選択して位置登録を行い、在圏する
ことを通知する。ここで、基地局から送信される電力は
各セルもしくはセクタのエリアを決め、基地局間相互の
エリア区分および相互の重なりを決める重要な要素であ
る。また、各基地局は複数の移動局に対して通信を行
い、従って基地局から送信を行うが、各移動局にて受信
される電力もしくはＥｂ／Ｉｏには規定値が設定されて
おり、従って移動局数が増加するに従い、基地局の送信
する電力は増加する。2. Description of the Related Art First, in the case of a cell type CDMA mobile communication base station which does not use an array antenna, each base station transmits a signal for notifying broadcast information to a jurisdiction area. At this time, each mobile station receives broadcast information from a plurality of base stations, and the received power or received Eb / Io (1 Hz
Energy per bit for interference power Io per hit)
Select the base station that maximizes the location, perform location registration, and notify that you are in the area. Even when the cell formed by the base station is divided by a plurality of fixed directional antennas to form a sector, the sector in which the received power or the received Eb / Io is maximized is similarly selected and the location registration is performed. Notify you to do so. Here, the power transmitted from the base station is an important element that determines the area of each cell or sector and determines the area division between base stations and the mutual overlap. Further, each base station communicates with a plurality of mobile stations, and therefore transmits from the base station, but the power received by each mobile station or Eb / Io is set to a specified value. The power transmitted by the base station increases as the number of mobile stations increases.

【０００３】そこで、基地局の送信機は収容できる移動
局数により、もしくは伝送速度を考慮して最大送信電力
が決まりこの最大送信電力で送信する能力を持たねばな
らない。しかし、収容する移動局数が少ない場合はこの
送信機に入力される信号レベルは非常に小さくなる。こ
のような場合、送信機の利得を下げ、適度な入力信号に
て動作する方が適切な場合もある。以上説明したよう
に、基地局の送信機はエリアを決定するため、もしくは
収容移動局数により送信機の利得を変える場合がある。Therefore, the transmitter of the base station must determine the maximum transmission power depending on the number of mobile stations that can be accommodated or in consideration of the transmission rate, and have the ability to transmit at this maximum transmission power. However, when the number of mobile stations accommodated is small, the signal level input to this transmitter becomes very small. In such cases, it may be more appropriate to reduce the gain of the transmitter and operate with a moderate input signal. As described above, the transmitter of the base station may change the gain of the transmitter in order to determine the area or depending on the number of accommodated mobile stations.

【０００４】次に、アレイ・アンテナを用いたセル方式
のＣＤＭＡ移動通信基地局の場合、基地局はセルを決定
するアンテナ指向性にて報知情報を流すと共に、複数の
セクタを形成するアンテナ指向性にて報知情報を流すこ
とにより、複数セクタの基地局を構成することもでき
る。この場合、アンテナ指向性を場所や時間により異な
らせることにより、固定指向性アンテナを用いた基地局
に比べてより柔軟なセルもしくはセクタが構成できるメ
リットを持っている。加えて、個別移動局に対して指向
性を有するビームを形成するならば、このアンテナ指向
性に基づくアンテナ利得が得られ、基地局にとっては低
電力であっても移動局における受信電力もしくはＥｂ／
Ｉｏを確保でき、結果として他移動局に対する干渉を軽
減するメリットを持つ。Next, in the case of a cell type CDMA mobile communication base station using an array antenna, the base station sends broadcast information by the antenna directivity for determining a cell and the antenna directivity for forming a plurality of sectors. It is also possible to configure a base station of a plurality of sectors by sending the broadcast information in. In this case, by making the antenna directivity different depending on the place or time, there is an advantage that a more flexible cell or sector can be configured as compared with a base station using a fixed directional antenna. In addition, if a beam having directivity to the individual mobile station is formed, an antenna gain based on this antenna directivity is obtained, and even if the base station has low power, the reception power at the mobile station or Eb /
Io can be secured, and as a result, it has an advantage of reducing interference with other mobile stations.

【０００５】しかし、アレイ・アンテナを用いる場合、
特定の方向に対して同相となるよう、各アンテナ素子の
位相を決定せねばならず、また特定方向以外への送信電
力を下げるためには、各アンテナ素子の位相のみなら
ず、振幅も設定する必要がある。また、複数のセクタも
しくは個別移動局に対するビームを形成する場合、各々
の信号に対して振幅及び位相を決定するため、特定の信
号に対してアンテナ素子での振幅及び位相を決めるだけ
でなく、同時に他の信号に対しては別の振幅及び位相に
て同時に送信する必要がある。ここで、ＲＦ（無線）周
波数で各移動局に対する信号の振幅及び位相重み付けを
行い、各々合成するより、ベースバンドもしくはＩＦ
（中間）周波数で重み付けを行った後合成した信号をＲ
Ｆ周波数に変換して送信する方が、回路構成上有利にな
る場合が多い。However, when using an array antenna,
The phase of each antenna element must be determined so that it is in phase with a specific direction, and in order to reduce the transmission power in directions other than the specific direction, not only the phase of each antenna element but also the amplitude is set. There is a need. Further, when forming a beam for a plurality of sectors or individual mobile stations, the amplitude and phase are determined for each signal, so not only is the amplitude and phase at the antenna element determined for a specific signal, but at the same time Other signals need to be transmitted simultaneously with different amplitudes and phases. Here, the amplitude and phase of the signal for each mobile station are weighted at the RF (radio) frequency, and the respective signals are combined, and the baseband or IF
The signal that is synthesized after weighting with the (intermediate) frequency is R
In many cases, converting to the F frequency and transmitting the signal is advantageous in terms of circuit configuration.

【０００６】以上の点から、アレイ・アンテナを用いた
セル方式の移動通信基地局の場合、各アンテナ素子に付
随する共用器、パワーアンプ、送信機全体の振幅及び位
相が各アンテナ素子間で相互に等しいことが望まれる。
しかし、前述したように、基地局は送信電力を制御する
必要があり、ここで、送信電力の制御を送信機で行う場
合、可変利得の増幅器を用いるが、この増幅器の利得を
変えることにより、同時に位相が変化し、また、送信機
相互の利得のばらつきもあって、複数ビームを形成する
基地局で送信電力を制御すると、固定指向性アンテナを
用いた基地局に比べて制御するのが難しくなる。From the above points, in the case of a cell type mobile communication base station using an array antenna, the amplitude and phase of the duplexer, power amplifier, and transmitter as a whole associated with each antenna element are mutually different between the antenna elements. Is desired to be equal to.
However, as described above, the base station needs to control the transmission power, and when the transmission power is controlled by the transmitter, a variable gain amplifier is used, but by changing the gain of this amplifier, At the same time, the phase changes, and there is also variation in gain between transmitters, so controlling the transmission power at a base station that forms multiple beams is more difficult to control than a base station that uses a fixed directional antenna. Become.

【０００７】このような、従来のＣＤＭＡ移動通信基地
局装置の具体的な一例について、全体構成を示す図３、
及びその振幅・位相制御送受信部の構成を示す図４を参
照して説明する。このＣＤＭＡ移動通信基地局装置は、
複数のアンテナ素子１１が配列されたアレイ・アンテナ
１０を用いて、複数の個別の通信経路に対し、送信電波
の送信方向、及び送られて来た電波に対する受信方向を
設定して通信を行う多元接続可能なＣＤＭＡ移動通信基
地局装置であって、アレイ・アンテナ１０の複数のアン
テナ素子１１それぞれと対応して設けられた複数の振幅
・位相制御送受信部３０ｘを備えて成り、これら振幅・
位相制御送受信部３０ｘそれぞれが、対応する個別の通
信経路の送信情報信号を無線周波帯の送信信号に変換処
理し、送受信共用器３３を介して対応するアンテナ素子
１１に供給する、出力レベルが制御可能な送信機３２
と、対応するアンテナ素子１１と接続して設けられ、送
受信共用器３３を介して入力された、対応するアンテナ
素子１１からの無線周波帯の受信信号を、個別の通信経
路の受信情報信号に変換処理し、かつその出力レベルが
一定化するように利得制御される可変利得増幅型の受信
機３６と、送信情報信号及び受信情報信号の周波帯と同
一の周波帯を有する受信系の参照信号を、受信系制御用
局部発振信号ｆｒに基づいて無線周波帯の受信信号と同
一の周波帯の信号に変換し、かつその信号レベルを、受
信機３６の利得と対応する値の減衰量で減衰させて設定
し、対応する無線周波帯受信信号伝送路に導入する、受
信参照信号レベル設定・参照信号導入部３４と、受信系
の参照信号導入部分から、対応する受信機３６を経由し
てその受信情報信号の出力端に至るまでの受信系信号経
路における、受信系の参照信号に対する振幅特性及び位
相特性を、受信系信号経路の受信情報信号出力端近傍の
信号と、遅延器６０経由の受信系の参照信号のその導入
部分の信号との間の差の情報に基づいて制御し、かつこ
の受信情報信号出力端の信号中の受信系の参照信号部分
を除去する、受信系振幅位相制御・参照信号除去手段の
誤差検出器６１、受信側振幅・位相制御器３７、及び参
照信号除去器３８の加算器３８２と、受信系の参照信号
との間の相関係数が十分小さい送信系の参照信号を、送
信機３２への送信情報信号入力端に印加し、この送信機
３２で無線周波帯の送信信号と同一の周波帯の信号に変
換処理し、送受信共用器３３を介して対応するアンテナ
素子１１に供給し、この対応するアンテナ素子１１への
送信信号伝送路から、無線周波帯の送信系の参照信号を
導き出して送信系制御用局部発振信号に基づいて無線周
波帯の受信信号と同一の周波帯に変換し、かつその信号
レベルを、送信機３２の出力信号レベルと対応する値の
減衰量で減衰させて設定する、送信参照信号導出・レベ
ル設定部３５を含み、送信系の参照信号を、対応するア
ンテナ素子１１の受信信号伝送路に導入、供給して、送
信情報信号の入力端から、アンテナ素子１１への送信信
号伝送路の参照信号導出部分に至るまでの送信系信号経
路における送信系の参照信号に対する振幅特性及び位相
特性を、送信情報信号の入力端の信号と参照信号導出部
分の出力端の信号との間の差の情報に基づいて制御し、
かつ受信情報信号出力端の信号中の送信系の参照信号成
分を除去する、送信系振幅位相制御・参照信号除去手段
の誤差検出器６２、送信側振幅・位相制御器３１、及び
参照信号除去器３８の加算器３８１と、送信器３２の出
力レベルを制御すると共に、送信参照信号導出・レベル
設定部３５における、参照信号の出力レベルを制御す
る、送信電力制御部６３と、受信情報信号の出力レベル
を検出して、受信機３６の利得、及び受信参照信号レベ
ル制御用の可変減衰器３４４の減衰量を制御する、振幅
レベル検出器３９と、を有する構成となっている。FIG. 3 showing the overall configuration of a concrete example of such a conventional CDMA mobile communication base station apparatus.
Also, description will be given with reference to FIG. This CDMA mobile communication base station device is
Using the array antenna 10 in which a plurality of antenna elements 11 are arranged, communication is performed by setting a transmission direction of a transmission radio wave and a reception direction of a transmitted radio wave for a plurality of individual communication paths. A connectable CDMA mobile communication base station device comprising a plurality of amplitude / phase control transmission / reception units 30x provided corresponding to the plurality of antenna elements 11 of the array antenna 10, respectively.
Each of the phase control transmission / reception units 30x converts a transmission information signal of a corresponding individual communication path into a transmission signal of a radio frequency band and supplies it to the corresponding antenna element 11 via the transmission / reception duplexer 33, which controls the output level. Possible transmitter 32
And a radio frequency band reception signal from the corresponding antenna element 11 that is provided by being connected to the corresponding antenna element 11 and is input via the transmission / reception duplexer 33 is converted into a reception information signal of an individual communication path. A variable gain amplification type receiver 36, which is processed and whose gain is controlled so that its output level is constant, and a reference signal of a reception system having a transmission information signal and the same frequency band as the frequency band of the reception information signal. , The local oscillation signal fr for controlling the receiving system is converted into a signal in the same frequency band as the received signal in the radio frequency band, and the signal level is attenuated by an attenuation amount of a value corresponding to the gain of the receiver 36. The reception reference signal level setting / reference signal introducing section 34 to be introduced into the corresponding radio frequency band reception signal transmission line and the reference signal introducing section of the receiving system, and the reception via the corresponding receiver 36. Information The amplitude characteristic and the phase characteristic with respect to the reference signal of the reception system in the reception system signal path up to the output end of the signal of the reception information signal output end of the reception system signal path and the reception system via the delay device 60 are referred to. Control based on the information of the difference between the signal of its introduction part and that of the signal, and remove the reference signal part of the reception system in the signal at the output end of this reception information signal, reception system amplitude phase control / reference signal removal A reference signal of the transmission system having a sufficiently small correlation coefficient between the error detector 61 of the means, the reception side amplitude / phase controller 37, the adder 382 of the reference signal remover 38, and the reference signal of the reception system, It is applied to the transmission information signal input terminal to the transmitter 32, converted into a signal of the same frequency band as the transmission signal of the radio frequency band by this transmitter 32, and is converted to the corresponding antenna element 11 via the duplexer 33. Supply this corresponding From the transmission signal transmission path to the tena element 11, a reference signal of the transmission system of the radio frequency band is derived, converted to the same frequency band as the reception signal of the radio frequency band based on the local oscillation signal for control of the transmission system, and A transmission reference signal derivation / level setting unit 35, which sets the signal level by attenuating the output signal level of the transmitter 32 by a value corresponding to the value of the corresponding antenna element 11, is provided. Amplitude characteristics with respect to the reference signal of the transmission system in the transmission system signal path from the input end of the transmission information signal to the reference signal derivation portion of the transmission signal transmission line to the antenna element 11 after being introduced and supplied to the reception signal transmission line. And the phase characteristic is controlled based on the information on the difference between the signal at the input end of the transmission information signal and the signal at the output end of the reference signal derivation portion,
Further, the error detector 62 of the transmission system amplitude / phase control / reference signal removing means, the transmission side amplitude / phase controller 31, and the reference signal remover for removing the reference signal component of the transmission system in the signal at the output terminal of the reception information signal. The output power of the adder 381 of 38 and the transmitter 32, and the output level of the reference signal in the transmission reference signal derivation / level setting unit 35, the transmission power control unit 63, and the output of the reception information signal An amplitude level detector 39 for detecting the level and controlling the gain of the receiver 36 and the attenuation amount of the variable attenuator 344 for controlling the received reference signal level.

【０００８】この振幅・位相制御送受信部３０ｘの、送
信系の振幅・位相制御（以下、キャリブレーションとい
うこともある）に関わる部分を抽出したものが図５であ
り、可変利得型の送信機３２の入力端から、送受信共用
器３３を経由して、アンテナ素子１１に至るまでの、送
信信号経路に対し、送信系の参照信号（例えば送信情報
信号ＴＸ１，ＴＸ２）を用いて、送信機３２の入力端の
信号と、送信参照信号導出・レベル設定部３５で導出さ
れ、レベル設定されてキャリブレーション済みの受信系
回路に導入され、これを経由した信号と、の間の、振幅
・位相誤差を検出（誤差検出器６２）し、これにより、
送信系回路の振幅、位相を制御（３１）している。FIG. 5 shows a portion of the amplitude / phase control transmission / reception unit 30x relating to the amplitude / phase control (hereinafter, also referred to as calibration) of the transmission system, which is a variable gain type transmitter 32. Of the transmitter 32 using the reference signals (for example, the transmission information signals TX1 and TX2) of the transmission system for the transmission signal path from the input end of the transmission path to the antenna element 11 via the transmission / reception duplexer 33. The amplitude / phase error between the signal at the input end and the signal that is derived by the transmission reference signal derivation / level setting unit 35, is set in the level, is introduced into the calibrated reception system circuit, and passes through this, Detection (error detector 62),
The amplitude and phase of the transmission system circuit are controlled (31).

【０００９】[0009]

【発明が解決しようとする課題】上述した従来のＣＤＭ
Ａ移動通信基地局装置は、送信機３２が可変利得型とな
っていて、その送信信号レベルが制御されるようになっ
ており、一方、この送信系の回路の振幅及び位相の制御
が、送信機３２の入力端の信号と、この信号が送信機３
２を通って送受信共用器３３を経由し、アンテナ素子１
１への無線周波帯の送信信号伝送路に伝送された信号を
導出した後、レベル設定してキャリブレーション済みの
受信系回路へ再導入し、この受信系回路を経由した信号
と、の間の誤差を検出して行われる構成となっており、
送信機３２の増幅利得を制御して送信信号のレベルを変
えると、これに伴って送信系回路の位相も変化し、ま
た、各アンテナ素子１１と接続する複数の振幅・位相制
御送受信部３０ｘにおける、送信機３２相互の利得のば
らつきもあって、通信を行う複数の移動局に対し複数ビ
ームを形成する基地局で、その総送信電力を制御しつ
つ、各アンテナ素子１１とつながる送信系回路の振幅及
び位相を等しくすることは、極めて困難であり、送信ア
ンテナ指向性が乱れやすいという問題点があった。DISCLOSURE OF THE INVENTION The above-mentioned conventional CDM
In the A mobile communication base station device, the transmitter 32 is of a variable gain type and its transmission signal level is controlled, while the amplitude and phase of the circuit of this transmission system are controlled by the transmission. Signal at the input of the transmitter 32 and this signal at the transmitter 3
2 through the transmission / reception duplexer 33 and the antenna element 1
After deriving the signal transmitted to the transmission signal transmission line of the radio frequency band to 1, then re-introducing it into the calibrated reception system circuit after setting the level, and between the signal passing through this reception system circuit and It is configured to detect the error,
When the level of the transmission signal is changed by controlling the amplification gain of the transmitter 32, the phase of the transmission system circuit is also changed accordingly, and in the plurality of amplitude / phase control transmission / reception units 30x connected to the respective antenna elements 11. , A base station that forms a plurality of beams for a plurality of mobile stations that communicate with each other due to variations in gain between the transmitters 32 controls a total transmission power of the base station and a transmission system circuit connected to each antenna element 11. It is extremely difficult to equalize the amplitude and the phase, and there is a problem that the directivity of the transmitting antenna is easily disturbed.

【００１０】本発明の目的は、上記従来技術の問題点に
鑑みて、基地局装置において総送信電力の変更があって
も、各アンテナ素子とつながる送信系回路の振幅及び位
相を正しく合わせることができて送信アンテナ指向性を
正常な状態に保つことができる、送信電力制御とキャリ
ブレーションとを連携させたＣＤＭＡ移動通信基地局装
置を提供することにある。In view of the above-mentioned problems of the prior art, an object of the present invention is to correct the amplitude and phase of the transmission system circuit connected to each antenna element even if the total transmission power is changed in the base station device. Another object of the present invention is to provide a CDMA mobile communication base station apparatus that can coordinate transmission power control and calibration and that can maintain the transmission antenna directivity in a normal state.

【００１１】[0011]

【課題を解決するための手段】本発明のＣＤＭＡ移動通
信基地局装置は、複数のアンテナ素子が配列されたアレ
イ・アンテナを用いて、複数の移動局に対し送信方向及
び受信方向を設定してこれら移動局との間で通信を行う
ＣＤＭＡ移動通信基地局装置であって、前記アレイ・ア
ンテナの複数のアンテナ素子と対応接続する複数の振幅
・位相制御送受信部を含んで成り、これら複数の振幅・
位相制御送受信部それぞれが次の各構成を有することを
特徴とする。 （イ）移動局に対する送信情報信号を、無線周波帯の送
信信号に変換し、かつ送信制御信号に従ってその出力レ
ベルを制御して対応するアンテナ素子へと供給する、可
変利得型の送信機 （ロ）対応するアンテナ素子からの無線周波帯の受信信
号を、受信情報信号に変換、増幅し、かつその出力レベ
ルが一定化するように利得制御する、可変利得型の受信
機 （ハ）前記受信情報信号と同一の周波帯を有する受信系
参照信号を、対応するアンテナ素子からの受信信号と同
一の無線周波帯に変換し、かつそのレベルを設定してこ
のアンテナ素子とつながる受信信号伝送路から導入し、
前記受信機を含む受信系回路を経由させて、この受信系
参照信号の、前記受信系回路における入力端の信号と出
力端の信号との間の振幅及び位相の誤差を検出し、この
検出結果に基づいて前記受信系回路を経由する信号に対
する振幅及び位相を制御する、受信側振幅・位相制御手
段 （ニ）前記送信情報信号と同一の周波帯を有して前記送
信機を含む送信系回路に供給され、この送信系回路を経
由した送信系参照信号を、対応するアンテナ素子への送
信信号伝送路から導出してそのレベルを、前記送信制御
信号と対応する送信参照信号減衰制御信号に基づいて設
定、制御し、かつ、前記無線周波帯の受信信号と同一の
周波帯に変換して前記受信系回路へと導入する、送信参
照信号導出・レベル設定導入手段 （ホ）前記送信系回路の入力端から分岐、抽出された送
信系参照信号に対し、その振幅及び位相を前記送信参照
信号減衰制御信号に基づいて補正する送信参照信号補正
器 （ヘ）前記送信参照信号レベル補正器で補正された送信
系回路入力端の送信系参照信号と、前記送信系回路を経
由し導出されて振幅及び位相が制御済みの受信系回路に
導入されたこの受信系回路の出力端の送信参照信号と、
の間の振幅及び位相の誤差を検出し、この検出結果に基
づいて前記送信系回路を経由する信号に対する振幅及び
位相を制御する、送信側振幅・位相制御手段 （ト）前記送信側振幅・位相制御手段における振幅及び
位相の制御量が、予め設定された制御量に対しその許容
範囲内にあるか、この許容範囲の上にあるか下にあるか
を判定する、送信側振幅・位相制御量判定部 （チ）送信電力設定信号に基づいて、前記送信参照信号
減衰制御信号、及び送信電力制御信号を発生する、送信
電力・送信参照信号レベル制御部 （リ）前記送信側振幅・位相制御量判定部の判定結果、
及び前記送信電力制御信号に基づいて前記送信制御信号
を発生し、かつこの送信制御信号による前記送信機の出
力レベル制御量を増減させるか不変とするかを決定して
前記送信機の出力レベルを制御する、送信制御信号設定
手段A CDMA mobile communication base station apparatus of the present invention uses an array antenna in which a plurality of antenna elements are arranged to set a transmission direction and a reception direction for a plurality of mobile stations. A CDMA mobile communication base station apparatus for performing communication with these mobile stations, comprising a plurality of amplitude / phase control transmitting / receiving sections which are correspondingly connected to a plurality of antenna elements of the array antenna.・
Each of the phase control transmission / reception units has the following configuration. (A) A variable gain type transmitter (robot) that converts a transmission information signal for a mobile station into a transmission signal in a radio frequency band, controls its output level in accordance with a transmission control signal, and supplies it to a corresponding antenna element. ) A variable gain type receiver (c) for controlling the gain of a radio frequency band received signal from a corresponding antenna element into a received information signal, amplifying it, and controlling its output level to be constant. Received system reference signal having the same frequency band as the signal is converted to the same radio frequency band as the received signal from the corresponding antenna element, and its level is set and introduced from the received signal transmission line connected to this antenna element. Then
Through a receiving system circuit including the receiver, an amplitude and phase error between the signal at the input end and the signal at the output end in the receiving system circuit of the receiving system reference signal is detected, and the detection result is detected. Amplitude and phase control means for controlling the amplitude and phase of the signal passing through the receiving system circuit based on the following: (d) A transmitting system circuit including the transmitter having the same frequency band as the transmission information signal. The transmission system reference signal supplied to the transmission system circuit is derived from the transmission signal transmission path to the corresponding antenna element, and its level is determined based on the transmission control signal and the transmission reference signal attenuation control signal corresponding to the transmission control signal. Transmission reference signal derivation / level setting introduction means (e) of the transmission system circuit, which is set and controlled as described above, and which is introduced into the reception system circuit after being converted into the same frequency band as the reception signal of the radio frequency band. Minute from input end A transmission reference signal corrector for correcting the amplitude and phase of the extracted transmission reference signal based on the transmission reference signal attenuation control signal (f) a transmission system circuit corrected by the transmission reference signal level corrector A transmission system reference signal at the input end, and a transmission reference signal at the output end of this reception system circuit introduced through the transmission system circuit and introduced into the reception system circuit whose amplitude and phase have been controlled,
Between the transmission side amplitude / phase control means (g) for detecting the amplitude and phase error between the two and controlling the amplitude and phase for the signal passing through the transmission system circuit based on the detection result. Amplitude / phase control amount on the transmission side for determining whether the control amount of amplitude and phase in the control means is within the permissible range of the preset control amount, or above or below this permissible range Judgment unit (h) Generates the transmission reference signal attenuation control signal and the transmission power control signal based on the transmission power setting signal, and the transmission power / transmission reference signal level control unit (i) the transmission side amplitude / phase control amount. Judgment result of the judgment unit,
And an output level of the transmitter by generating the transmission control signal based on the transmission power control signal, and determining whether to increase or decrease the output level control amount of the transmitter by the transmission control signal. Transmission control signal setting means for controlling

【００１２】また、前記送信制御信号設定手段が、前記
送信側振幅・位相制御量判定部の判定結果及び前記送信
電力制御信号に基づいて前記送信制御信号による送信機
出力レベルの制御内容を修正するテーブル修正器と、前
記送信電力制御信号に基づいて前記送信制御信号を発生
し、かつ前記テーブル修正器でその制御内容が修正され
たこの送信制御信号により前記送信機の出力レベルを制
御する、テーブル・タイプの送信制御信号設定部と、を
含んで構成される。Further, the transmission control signal setting means corrects the control content of the transmitter output level by the transmission control signal based on the determination result of the transmission side amplitude / phase control amount determination section and the transmission power control signal. A table modifier, which generates the transmission control signal based on the transmission power control signal, and controls the output level of the transmitter by the transmission control signal whose control content is modified by the table modifier. And a type of transmission control signal setting unit.

【００１３】[0013]

【発明の実施の形態】本発明の一実施の形態は、複数の
アンテナ素子が配列されたアレイ・アンテナを用いて、
複数の移動局に対し送信方向及び受信方向を設定してこ
れら移動局との間で通信を行うＣＤＭＡ移動通信基地局
装置であって、上記アレイ・アンテナの複数のアンテナ
素子と対応接続する複数の振幅・位相制御送受信部を含
んで成り、これら複数の振幅・位相制御送受信部それぞ
れが次の各構成を有している。すなわち、移動局に対す
る送信情報信号を、無線周波帯の送信信号に変換し、か
つ送信制御信号に従ってその出力レベルを制御して対応
するアンテナ素子へと供給する、可変利得型の送信機
と、対応するアンテナ素子からの無線周波帯の受信信号
を、受信情報信号に変換、増幅し、かつその出力レベル
が一定化するように利得制御する、可変利得型の受信機
と、上記受信情報信号と同一の周波帯を有する受信系参
照信号を、対応するアンテナ素子からの受信信号と同一
の無線周波帯に変換し、かつそのレベルを設定してこの
アンテナ素子とつながる受信信号伝送路から導入し、上
記受信機を含む受信系回路を経由させて、この受信系参
照信号の、上記受信系回路における入力端の信号と出力
端の信号との間の振幅及び位相の誤差を検出し、この検
出結果に基づいて上記受信系回路を経由する信号に対す
る振幅及び位相を制御する、受信側振幅・位相制御手段
と、上記送信情報信号と同一の周波帯を有して上記送信
機を含む送信系回路に供給され、この送信系回路を経由
した送信系参照信号を、対応するアンテナ素子への送信
信号伝送路から導出してそのレベルを、上記送信制御信
号と対応する送信参照信号減衰制御信号に基づいて設
定、制御し、かつ、上記無線周波帯の受信信号と同一の
周波帯に変換して上記受信系回路へと導入する、送信参
照信号導出・レベル設定導入手段と、上記送信系回路の
入力端から分岐、抽出された送信系参照信号に対し、そ
の振幅及び位相を上記送信参照信号減衰制御信号に基づ
いて補正する送信参照信号補正器と、上記送信参照信号
レベル補正器で補正された送信系回路入力端の送信系参
照信号と、上記送信系回路を経由し導出されて振幅及び
位相が制御済みの受信系回路に導入されたこの受信系回
路の出力端の送信参照信号と、の間の振幅及び位相の誤
差を検出し、この検出結果に基づいて上記送信系回路を
経由する信号に対する振幅及び位相を制御する、送信側
振幅・位相制御手段と、上記送信側振幅・位相制御手段
における振幅及び位相の制御量が、予め設定された制御
量に対しその許容範囲内にあるか、この許容範囲の上に
あるか下にあるかを判定する、送信側振幅・位相制御量
判定部と、送信電力設定信号に基づいて、上記送信参照
信号減衰制御信号、及び送信電力制御信号を発生する、
送信電力・送信参照信号レベル制御部と、上記送信側振
幅・位相制御量判定部の判定結果、及び上記送信電力制
御信号に基づいて上記送信制御信号を発生し、かつこの
送信制御信号による上記送信機の出力レベル制御量を増
減させるか不変とするかを決定して上記送信機の出力レ
ベルを制御する、送信制御信号設定手段と、を有し、更
にこの送信制御信号設定手段が、上記送信側振幅・位相
制御量判定部の判定結果及び上記送信電力制御信号に基
づいて上記送信制御信号による送信機出力レベルの制御
内容を修正するテーブル修正器と、上記送信電力制御信
号に基づいて上記送信制御信号を発生し、かつ上記テー
ブル修正器でその制御内容が修正されたこの送信制御信
号により上記送信機の出力レベルを制御する、テーブル
・タイプの送信制御信号設定部と、を含んで成る構成と
なっている。BEST MODE FOR CARRYING OUT THE INVENTION One embodiment of the present invention uses an array antenna in which a plurality of antenna elements are arranged,
A CDMA mobile communication base station device which sets a transmission direction and a reception direction for a plurality of mobile stations and communicates with these mobile stations, wherein the plurality of mobile stations correspond to a plurality of antenna elements of the array antenna. The amplitude / phase control transmission / reception unit is included, and each of the plurality of amplitude / phase control transmission / reception units has the following configurations. That is, a variable gain type transmitter that converts a transmission information signal for a mobile station into a transmission signal in a radio frequency band and controls its output level according to a transmission control signal to supply it to a corresponding antenna element, The same as the above-mentioned received information signal, and a variable gain type receiver for converting the received signal in the radio frequency band from the antenna element into a received information signal, amplifying it, and controlling the gain so that its output level becomes constant. The reception system reference signal having the frequency band of is converted into the same radio frequency band as the reception signal from the corresponding antenna element, and its level is set and introduced from the reception signal transmission line connected to this antenna element, Through the receiving system circuit including the receiver, the amplitude and phase errors of the receiving system reference signal between the signal at the input end and the signal at the output end of the receiving system circuit are detected. A reception side amplitude / phase control means for controlling the amplitude and phase of a signal passing through the reception system circuit based on the detection result, and a transmission system including the transmitter having the same frequency band as the transmission information signal. The transmission system reference signal that is supplied to the circuit and that has passed through this transmission system circuit is derived from the transmission signal transmission path to the corresponding antenna element, and its level is used as the transmission reference signal attenuation control signal corresponding to the transmission control signal. Based on the transmission reference signal derivation / level setting introduction means, which is set and controlled based on the above, and which is introduced into the reception system circuit after being converted into the same frequency band as the reception signal of the radio frequency band, and the transmission system circuit. A transmission reference signal corrector that corrects the amplitude and phase of the transmission system reference signal branched and extracted from the input end based on the transmission reference signal attenuation control signal, and the transmission reference signal level corrector. The corrected transmission system reference signal at the input end of the transmission system circuit and the transmission reference signal at the output end of this reception system circuit introduced through the above transmission system circuit and introduced into the reception system circuit whose amplitude and phase have been controlled And an error in amplitude and phase between the two, and based on this detection result, the amplitude and phase control means for controlling the amplitude and phase for the signal passing through the transmission system circuit; Amplitude and phase control on the transmitting side for judging whether the amplitude and phase control amounts in the phase control means are within the permissible range with respect to a preset control amount, or above or below this permissible range Based on the amount determination unit and the transmission power setting signal, the transmission reference signal attenuation control signal, and the transmission power control signal is generated,
The transmission power / transmission reference signal level control unit, the determination result of the transmission side amplitude / phase control amount determination unit, and the transmission control signal are generated based on the transmission power control signal, and the transmission by the transmission control signal is performed. A transmission control signal setting means for controlling the output level of the transmitter by deciding whether to increase or decrease the output level control amount of the transmitter, and controlling the output level of the transmitter. A table corrector that corrects the control contents of the transmitter output level by the transmission control signal based on the determination result of the side amplitude / phase control amount determination unit and the transmission power control signal, and the transmission based on the transmission power control signal A table type transmission controller that generates a control signal and controls the output level of the transmitter by the transmission control signal whose control content is modified by the table modifier. It has a configuration comprising a signal setting section.

【００１４】このような構成とすることにより、基地局
装置において総送信電力を変更する必要が生じ、この総
送信電力を変更した場合に、送信電力の変化に伴う送信
系回路の振幅及び位相の差が生じてその制御量が変化し
たとしても、その制御量を設定量と比較して送信電力を
設定規定量だけ修正し、かつ振幅、位相制御の基準とな
る送信参照信号も総送信電力の変化に伴って補正される
ので、複数の振幅・位相制御送受信部相互間でその振幅
及び位相を正しく合わせることができ、送信アンテナ指
向性を正常な状態に保つことができる。With such a configuration, it becomes necessary to change the total transmission power in the base station apparatus, and when the total transmission power is changed, the amplitude and phase of the transmission system circuit associated with the change in the transmission power are changed. Even if there is a difference and the control amount changes, the control amount is compared with the set amount, the transmission power is corrected by the set specified amount, and the transmission reference signal that serves as the reference for amplitude and phase control also has the total transmission power. Since the correction is performed according to the change, the amplitude and the phase can be correctly matched among the plurality of amplitude / phase control transmitting / receiving units, and the directivity of the transmitting antenna can be maintained in a normal state.

【００１５】[0015]

【実施例】次に本発明の実施例について図面を参照して
説明する。図１は本発明の一実施例のＣＤＭＡ移動通信
基地局装置全体を示す系統図、図２はその振幅・位相制
御送受信部の、送信系回路に関わる部分を抽出したブロ
ック図である。この実施例では、ＣＤＭＡ移動通信基地
局装置全体が図３に示された従来例と同様の構成となっ
ており、複数のアンテナ素子１１と対応接続する複数の
振幅・位相制御送受信部３０それぞれは、その送信側振
幅・位相制御器３１、送信機３２、送受信共用器３３、
受信参照信号レベル設定・参照信号導入部３４、送信参
照信号導出・レベル設定部３５、受信機３６、受信側振
幅・位相制御器３７、参照信号除去器３８（一部図示省
略）、振幅レベル検出器３９（図示省略）、遅延器６０
（図示省略）、及び誤差検出器６１（図示省略），６２
が前述の従来例と同一の機能、構成を有し、送信電力制
御部６３に代えて送信電力・送信参照信号レベル制御部
７１が設けられ、新たに、送信参照信号補正器７２、制
御量判定器７３、テーブル修正器７４、及び送信制御信
号設定部（テーブル）７５が設けられた構成となってい
て、送信電力・送信参照信号レベル制御部７１、及び新
たに設けられた部分の詳細は次のとおりとなっている。Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a system diagram showing the entire CDMA mobile communication base station apparatus of one embodiment of the present invention, and FIG. 2 is a block diagram in which a portion related to a transmission system circuit of an amplitude / phase control transmission / reception unit is extracted. In this embodiment, the entire CDMA mobile communication base station device has the same configuration as that of the conventional example shown in FIG. 3, and each of the plurality of amplitude / phase control transmission / reception units 30 corresponding to the plurality of antenna elements 11 is connected to each other. , Its transmission side amplitude / phase controller 31, transmitter 32, transmission / reception duplexer 33,
Reception reference signal level setting / reference signal introducing unit 34, transmission reference signal deriving / level setting unit 35, receiver 36, reception side amplitude / phase controller 37, reference signal remover 38 (partly not shown), amplitude level detection Device 39 (not shown), delay device 60
(Not shown), and error detectors 61 (not shown), 62
Has the same function and configuration as the above-mentioned conventional example, a transmission power / transmission reference signal level control unit 71 is provided in place of the transmission power control unit 63, and a transmission reference signal corrector 72 and a control amount determination are newly added. The device 73, the table corrector 74, and the transmission control signal setting unit (table) 75 are provided, and the details of the transmission power / transmission reference signal level control unit 71 and the newly provided portion will be described below. It is as follows.

【００１６】まず、送信電力・送信参照信号レベル制御
部７１は、送信電力設定信号ＴＰＳに基づいて、送信参
照信号導出・レベル設定部３５の可変減衰器３５３の減
衰量を設定、制御する送信参照信号減衰制御信号ＡＴＣ
と、送信制御信号設定部７５への送信電力制御信号ＴＰ
Ｃを発生する。次に、送信参照信号補正器７２は、送信
系回路の入力端である送信機３２の入力端から分岐、抽
出された送信系参照信号に対し、その振幅及び位相を送
信参照信号減衰制御信号ＡＴＣに基づいて補正し、誤差
検出器７２における送信系回路の振幅、位相誤差検出の
ための基準信号（ｄｔ）とする。First, the transmission power / transmission reference signal level control unit 71 sets and controls the attenuation amount of the variable attenuator 353 of the transmission reference signal derivation / level setting unit 35 based on the transmission power setting signal TPS. Signal attenuation control signal ATC
And a transmission power control signal TP to the transmission control signal setting unit 75
Generate C. Next, the transmission reference signal corrector 72 determines the amplitude and phase of the transmission system reference signal branched and extracted from the input end of the transmitter 32, which is the input end of the transmission system circuit, to the transmission reference signal attenuation control signal ATC. The reference signal (dt) for detecting the amplitude and phase error of the transmission system circuit in the error detector 72.

【００１７】次に制御量判定器７３は、送信側振幅・位
相制御器３１における振幅及び位相の制御量（ウェート
量Ｗｔ）が、予め設定された制御量Ｗｏに対しその許容
範囲ΔＷ内にあるか、この許容範囲ΔＷの上にあるか下
にあるかを判定し、許容範囲ΔＷ内であれば、“０”、
上にあれば“＋”、下にあれば“−”の制御量判定信号
Ｊを出力する。Next, in the control amount determiner 73, the amplitude and phase control amount (weight amount Wt) in the transmission side amplitude / phase controller 31 is within the allowable range ΔW with respect to the preset control amount Wo. Or whether it is above or below this allowable range ΔW, and if it is within the allowable range ΔW, “0”,
The control amount determination signal J of "+" if it is above and "-" if it is below is output.

【００１８】次に、テーブル修正器７４、及びテーブル
・タイプの送信制御信号設定部７５は送信制御信号設定
手段を形成し、この送信制御信号設定手段で、制御量判
定信号Ｊ、及び送信電力制御信号ＴＰＣに基づいて送信
制御信号ＴＣＳを発生し、かつこの送信制御信号ＴＣＳ
による送信機３２の出力レベル制御量を増減させるか不
変とするかを決定して送信機３２の出力レベルを制御す
るようになっており、テーブル修正器７４が、制御量判
定信号Ｊ及び送信電力制御信号ＴＰＣに基づいて送信制
御信号設定部７５内の送信制御信号ＴＣＳのテーブルを
修正量ΔＡだけ書き換え修正し、送信制御信号設定部７
５が、送信電力制御信号ＴＰＣに基づいて送信制御信号
ＴＣＳを発生し、かつテーブル修正器７４でその制御内
容が修正されたこの送信制御信号ＴＣＳにより、送信機
３２の出力レベルを制御する、構成となっている。Next, the table corrector 74 and the table type transmission control signal setting section 75 form a transmission control signal setting means, and the transmission control signal setting means controls the control amount judgment signal J and the transmission power control. A transmission control signal TCS is generated based on the signal TPC, and the transmission control signal TCS is generated.
The output level control amount of the transmitter 32 is determined by increasing or decreasing and the output level of the transmitter 32 is controlled, and the table corrector 74 controls the control amount determination signal J and the transmission power. Based on the control signal TPC, the table of the transmission control signal TCS in the transmission control signal setting unit 75 is rewritten and corrected by the correction amount ΔA, and the transmission control signal setting unit 7
5, a transmission control signal TCS is generated based on the transmission power control signal TPC, and the output level of the transmitter 32 is controlled by the transmission control signal TCS whose control content is corrected by the table correction unit 74. Has become.

【００１９】この実施例では、送信電力・送信参照信号
レベル制御部７１により、従来例と同様に、アンテナ素
子１１への無線周波帯の送信信号伝送路から導出された
送信参照信号のレベルが可変減衰器３５３で、送信機３
２の利得を吸収するように制御されて、振幅、位相制御
済みの受信系回路に導入される。そして、送信系回路の
入力端である送信機３２の入力端の送信参照信号と、振
幅、位相制御済みの受信系回路の出力端の送信系参照信
号とが誤差検出器６２で比較され、その振幅、位相誤差
が検出されることになる。このとき、送信機３２の出力
レベルが変化すると、これに伴って送信系回路を経由す
る送信参照信号の振幅及び位相に誤差が生じるので、こ
の誤差を、送信参照信号補正器７２で補正する。その結
果、送信系回路を経由する信号に対し、正確な振幅、位
相の制御が行われ、参照信号除去器３８により送信参照
信号は確実に除去される。In this embodiment, the transmission power / transmission reference signal level control unit 71 varies the level of the transmission reference signal derived from the transmission signal transmission line in the radio frequency band to the antenna element 11 as in the conventional example. Transmitter 3 with attenuator 353
It is controlled so as to absorb the gain of 2, and is introduced into the reception system circuit whose amplitude and phase have been controlled. Then, the error detector 62 compares the transmission reference signal at the input end of the transmitter 32, which is the input end of the transmission system circuit, with the transmission reference signal at the output end of the reception system circuit whose amplitude and phase have been controlled. Amplitude and phase errors will be detected. At this time, if the output level of the transmitter 32 changes, an error occurs in the amplitude and the phase of the transmission reference signal passing through the transmission system circuit accordingly. Therefore, this error is corrected by the transmission reference signal corrector 72. As a result, the signal passing through the transmission system circuit is accurately controlled in amplitude and phase, and the reference signal remover 38 reliably removes the transmitted reference signal.

【００２０】一方、送信機３２の出力信号を制御する送
信制御信号ＴＣＳは、送信電力制御信号ＴＰＣに基づい
て生成され、可変減衰器３５３の減衰量を設定する送信
参照信号減衰制御信号ＡＴＣと対応しており、すなわ
ち、送信機３２の増幅利得と可変減衰器３５３の減衰量
とは互いに逆数の関係にあり、この対応関係に基づいて
その制御内容が設定されて、この送信制御信号ＴＣＳに
より送信機３２の出力レベルが制御されるが、この対応
関係がずれると、送信側振幅・位相制御器３１による制
御量（ウェート量Ｗｔ）が基準値Ｗｏ及びその許容範囲
ΔＷからずれてしまうので、このずれを制御量判定器７
３で判定してテーブル修正器７４及び送信制御信号設定
部７５により、送信制御信号ＴＣＳによる制御量を増減
させて送信機３２の振幅利得を制御し、その出力レベル
を増減させることにより、制御量（Ｗｔ）は基準値Ｗｏ
に対しその許容範囲ΔＷ内に収束し、かつ、送信電力も
その許容範囲内に収束して、総送信電力の変更があって
も、振幅・位相制御を正しく合せ、かつ複数の振幅・位
相制御送受信部３０相互間で均一化することができて、
送信アンテナ指向性を正常な状態に保つことができる。On the other hand, the transmission control signal TCS for controlling the output signal of the transmitter 32 is generated based on the transmission power control signal TPC and corresponds to the transmission reference signal attenuation control signal ATC for setting the attenuation amount of the variable attenuator 353. That is, that is, the amplification gain of the transmitter 32 and the attenuation amount of the variable attenuator 353 have an inverse relationship with each other, and the control content is set based on this correspondence relationship, and transmission is performed by this transmission control signal TCS. Although the output level of the machine 32 is controlled, if this correspondence relationship is deviated, the control amount (weight amount Wt) by the transmission side amplitude / phase controller 31 deviates from the reference value Wo and its allowable range ΔW. Displacement is a control amount determiner 7
3, the table corrector 74 and the transmission control signal setting unit 75 increase / decrease the control amount by the transmission control signal TCS to control the amplitude gain of the transmitter 32, and increase / decrease its output level to obtain the control amount. (Wt) is the reference value Wo
On the other hand, if the total transmission power is converged within the allowable range ΔW and the transmission power is also converged within the allowable range, the amplitude / phase control is correctly adjusted and a plurality of amplitude / phase controls are performed. It is possible to make the transmitters / receivers 30 uniform,
The directivity of the transmitting antenna can be maintained in a normal state.

【００２１】ここで、制御量（Ｗｔ）と、設定値Ｗｏ及
びその許容範囲ΔＷ、並びに制御量判定信号Ｊ（以下、
点に判定信号Ｊという）と、テーブルの修正動作等につ
いて、より詳しく説明すると、｜Ｗｔ｜がＷｏ＋ΔＷ／
２以上であれば、判定信号Ｊは｛＋｝を出力し、｜Ｗｔ
｜がＷｏ−ΔＷ／２以上で、Ｗｏ＋ΔＷ／２以下であれ
ば、｛０｝を出力し、｜Ｗｔ｜がＷｏ−ΔＷ／２以下で
あれば、｛−｝を出力するようにすれば、Ｗｔが許容範
囲ΔＷ内であれば｛０｝が出力され、許容範囲の上もし
くは下にて｛＋｝もしくは｛−｝が出力される。この値
により、テーブル修正器７４は設定された修正量ΔＡだ
け、送信制御信号設定部７５のテーブルを修正して再
度、上記同様のループを繰り返す。この結果、送信電力
は送信キャリブレーションにより補正された状況で、許
容範囲内で正しく収束する。Here, the control amount (Wt), the set value Wo and its allowable range ΔW, and the control amount determination signal J (hereinafter,
The judgment signal J) and the correction operation of the table will be described in more detail. | Wt | is Wo + ΔW /
If it is 2 or more, the determination signal J outputs {+}, and | Wt
If | is Wo−ΔW / 2 or more and Wo + ΔW / 2 or less, {0} is output, and if | Wt | is Wo−ΔW / 2 or less, {−} is output. If Wt is within the allowable range ΔW, {0} is output, and above or below the allowable range, {+} or {-} is output. With this value, the table corrector 74 corrects the table of the transmission control signal setting unit 75 by the set correction amount ΔA and repeats the same loop as above. As a result, the transmission power is properly converged within the allowable range in the situation where the transmission power is corrected by the transmission calibration.

【００２２】以上説明したように、位相及び振幅特性を
複数の送信系で等しくするためのキャリブレーション動
作を継続している際に、基地局の総送信電力を変更して
も、送信電力を決定する可変利得増幅器の利得の変更に
伴う利得の不確かさを、参照信号の導入で補正しなが
ら、同時に発生する位相の変化も補正するという、キャ
リブレーションと送信電力制御の連動をして実現でき
る。As described above, the transmission power is determined even if the total transmission power of the base station is changed while continuing the calibration operation for equalizing the phase and amplitude characteristics in a plurality of transmission systems. The gain uncertainty due to the change of the gain of the variable gain amplifier is corrected by introducing the reference signal, and at the same time, the change in the phase that occurs at the same time is also corrected.

【００２３】[0023]

【発明の効果】以上説明したように本発明は、送信電力
の変更があった場合でも、その送信系回路の振幅、位相
誤差検出の基準となる、送信機入力端からの送信参照信
号に対し、送信電力変更に伴う補正を行うことにより、
送信側振幅・位相制御が正確に実行でき、更に、送信側
振幅・位相制御量が設定量及びその許容範囲内にある
か、その上か下かを判定して送信電力を設定された規定
量だけ修正、或いはそのままとする、構成とすることに
より、送信電力の変化に伴う送信系回路の振幅、位相の
差が生じてその制御量が変化したとしても、これらの間
で連携を取りながら、この制御量を設定量の許容範囲内
に収束させることができて、複数の振幅・位相制御送受
信部相互間で、その振幅、位相を正しく合せることがで
き、送信アンテナ指向性を正常な状態に保持することが
できる、という効果がある。As described above, according to the present invention, even when the transmission power is changed, the transmission reference signal from the transmitter input terminal, which serves as a reference for the amplitude and phase error detection of the transmission system circuit, is detected. By correcting the transmission power,
Amplitude / phase control on the transmission side can be accurately executed, and the specified amount of transmission power is determined by determining whether the amplitude / phase control amount on the transmission side is within the set amount and its allowable range, or above or below it. However, even if the control amount changes due to the difference in the amplitude and phase of the transmission system circuit due to the change in the transmission power, by making the correction, or leaving it as it is, while coordinating between these, This control amount can be converged within the allowable range of the set amount, and the amplitude and phase can be correctly adjusted between multiple amplitude / phase control transceiver units, and the transmission antenna directivity can be maintained in a normal state. The effect is that it can be held.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例の、ＣＤＭＡ移動通信基地局
装置全体を示す系統図である。FIG. 1 is a system diagram showing an entire CDMA mobile communication base station apparatus according to an embodiment of the present invention.

【図２】図１に示されたＣＤＭＡ移動通信基地局装置に
おける、各振幅・位相制御送受信部の、送信系回路に関
わる部分を抽出したブロック図である。FIG. 2 is a block diagram in which a portion related to a transmission system circuit of each amplitude / phase control transmission / reception unit in the CDMA mobile communication base station device shown in FIG. 1 is extracted.

【図３】従来のＣＤＭＡ移動通信基地局装置全体の一例
を示す系統図である。FIG. 3 is a system diagram showing an example of the entire conventional CDMA mobile communication base station apparatus.

【図４】図３に示されたＣＤＭＡ移動通信基地局装置に
おける、各振幅・位相制御送受信部のブロック図であ
る。4 is a block diagram of each amplitude / phase control transmission / reception unit in the CDMA mobile communication base station device shown in FIG.

【図５】図４に示された振幅・位相制御送受信部の、送
信系回路に関わる部分を抽出したブロック図である。5 is a block diagram in which a portion related to a transmission system circuit of the amplitude / phase control transmission / reception unit shown in FIG. 4 is extracted.

【符号の説明】[Explanation of symbols]

１０ アレイ・アンテナ １１ アンテナ素子 ２０ アンテナ指向性制御部 ２１，２２ 指向性制御素子 ３０，３０ｘ 振幅・位相制御送受信部 ３１ 送信側振幅・位相制御器 ３２ 送信機 ３３ 送受信共用器 ３４ 受信参照信号レベル設定・参照信号導入部 ３５ 送信参照信号導出・レベル設定部 ３６ 受信機 ３７ 受信側振幅・位相制御器 ３８ 参照信号除去器 ６１，６２ 誤差検出器 ６３ 送信電力制御部 ７１ 送信電力・送信参照信号レベル制御部 ７２ 送信参照信号補正器 ７３ 制御量判定器 ７４ テーブル修正器 ７５ 送信制御信号設定部 10 array antenna 11 Antenna element 20 Antenna directivity controller 21,22 Directional control element 30,30x Amplitude / phase control transceiver 31 Transmitter amplitude / phase controller 32 transmitter 33 Transmitter / receiver 34 Reception reference signal level setting / reference signal introducing section 35 Transmission reference signal derivation / level setting unit 36 receivers 37 Receiver side amplitude / phase controller 38 Reference signal remover 61,62 Error detector 63 Transmission power control unit 71 Transmission power / transmission reference signal level control unit 72 Transmit reference signal corrector 73 Control quantity determiner 74 Table modifier 75 Transmission control signal setting section

───────────────────────────────────────────────────── フロントページの続き (72)発明者 羽田 亨 東京都三鷹市下連雀五丁目１番１号 日本 無線株式会社内 (72)発明者 吹野 幸治 東京都三鷹市下連雀五丁目１番１号 日本 無線株式会社内 Ｆターム(参考） 5K022 EE01 EE21 EE31 5K067 CC10 EE02 EE10 EE22 GG08 KK02 KK03    ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toru Haneda             5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan             Wireless Co., Ltd. (72) Inventor Koji Fukino             5-1-1 Shimorenjaku, Mitaka City, Tokyo Japan             Wireless Co., Ltd. F term (reference) 5K022 EE01 EE21 EE31                 5K067 CC10 EE02 EE10 EE22 GG08                       KK02 KK03

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 複数のアンテナ素子が配列されたアレイ
・アンテナを用いて、複数の移動局に対し送信方向及び
受信方向を設定してこれら移動局との間で通信を行うＣ
ＤＭＡ移動通信基地局装置であって、前記アレイ・アン
テナの複数のアンテナ素子と対応接続する複数の振幅・
位相制御送受信部を含んで成り、これら複数の振幅・位
相制御送受信部それぞれが次の各構成を有することを特
徴とするＣＤＭＡ移動通信基地局装置。 （イ）移動局に対する送信情報信号を、無線周波帯の送
信信号に変換し、かつ送信制御信号に従ってその出力レ
ベルを制御して対応するアンテナ素子へと供給する、可
変利得型の送信機 （ロ）対応するアンテナ素子からの無線周波帯の受信信
号を、受信情報信号に変換、増幅し、かつその出力レベ
ルが一定化するように利得制御する、可変利得型の受信
機 （ハ）前記受信情報信号と同一の周波帯を有する受信系
参照信号を、対応するアンテナ素子からの受信信号と同
一の無線周波帯に変換し、かつそのレベルを設定してこ
のアンテナ素子とつながる受信信号伝送路から導入し、
前記受信機を含む受信系回路を経由させて、この受信系
参照信号の、前記受信系回路における入力端の信号と出
力端の信号との間の振幅及び位相の誤差を検出し、この
検出結果に基づいて前記受信系回路を経由する信号に対
する振幅及び位相を制御する、受信側振幅・位相制御手
段 （ニ）前記送信情報信号と同一の周波帯を有して前記送
信機を含む送信系回路に供給され、この送信系回路を経
由した送信系参照信号を、対応するアンテナ素子への送
信信号伝送路から導出してそのレベルを、前記送信制御
信号と対応する送信参照信号減衰制御信号に基づいて設
定、制御し、かつ、前記無線周波帯の受信信号と同一の
周波帯に変換して前記受信系回路へと導入する、送信参
照信号導出・レベル設定導入手段 （ホ）前記送信系回路の入力端から分岐、抽出された送
信系参照信号に対し、その振幅及び位相を前記送信参照
信号減衰制御信号に基づいて補正する送信参照信号補正
器 （ヘ）前記送信参照信号レベル補正器で補正された送信
系回路入力端の送信系参照信号と、前記送信系回路を経
由し導出されて振幅及び位相が制御済みの受信系回路に
導入されたこの受信系回路の出力端の送信参照信号と、
の間の振幅及び位相の誤差を検出し、この検出結果に基
づいて前記送信系回路を経由する信号に対する振幅及び
位相を制御する、送信側振幅・位相制御手段 （ト）前記送信側振幅・位相制御手段における振幅及び
位相の制御量が、予め設定された制御量に対しその許容
範囲内にあるか、この許容範囲の上にあるか下にあるか
を判定する、送信側振幅・位相制御量判定部 （チ）送信電力設定信号に基づいて、前記送信参照信号
減衰制御信号、及び送信電力制御信号を発生する、送信
電力・送信参照信号レベル制御部 （リ）前記送信側振幅・位相制御量判定部の判定結果、
及び前記送信電力制御信号に基づいて前記送信制御信号
を発生し、かつこの送信制御信号による前記送信機の出
力レベル制御量を増減させるか不変とするかを決定して
前記送信機の出力レベルを制御する、送信制御信号設定
手段1. An array antenna in which a plurality of antenna elements are arranged is used to set a transmission direction and a reception direction for a plurality of mobile stations and to perform communication with these mobile stations.
A DMA mobile communication base station apparatus, comprising: a plurality of amplitudes corresponding to a plurality of antenna elements of the array antenna;
A CDMA mobile communication base station apparatus comprising a phase control transmission / reception unit, each of the plurality of amplitude / phase control transmission / reception units having the following configurations. (A) A variable gain type transmitter (robot) that converts a transmission information signal for a mobile station into a transmission signal in a radio frequency band, controls its output level in accordance with a transmission control signal, and supplies it to a corresponding antenna element. ) A variable gain type receiver (c) for controlling the gain of a radio frequency band received signal from a corresponding antenna element into a received information signal, amplifying it, and controlling its output level to be constant. Received system reference signal having the same frequency band as the signal is converted to the same radio frequency band as the received signal from the corresponding antenna element, and its level is set and introduced from the received signal transmission line connected to this antenna element. Then
Through a receiving system circuit including the receiver, an amplitude and phase error between the signal at the input end and the signal at the output end in the receiving system circuit of the receiving system reference signal is detected, and the detection result is detected. Amplitude and phase control means for controlling the amplitude and phase of the signal passing through the receiving system circuit based on the following: (d) A transmitting system circuit including the transmitter having the same frequency band as the transmission information signal. The transmission system reference signal supplied to the transmission system circuit is derived from the transmission signal transmission path to the corresponding antenna element, and its level is determined based on the transmission control signal and the transmission reference signal attenuation control signal corresponding to the transmission control signal. Transmission reference signal derivation / level setting introduction means (e) of the transmission system circuit, which is set and controlled as described above, and which is introduced into the reception system circuit after being converted into the same frequency band as the reception signal of the radio frequency band. Minute from input end A transmission reference signal corrector for correcting the amplitude and phase of the extracted transmission reference signal based on the transmission reference signal attenuation control signal (f) a transmission system circuit corrected by the transmission reference signal level corrector A transmission system reference signal at the input end, and a transmission reference signal at the output end of this reception system circuit introduced through the transmission system circuit and introduced into the reception system circuit whose amplitude and phase have been controlled,
Between the transmission side amplitude / phase control means (g) for detecting the amplitude and phase error between the two and controlling the amplitude and phase for the signal passing through the transmission system circuit based on the detection result. Amplitude / phase control amount on the transmission side for determining whether the control amount of amplitude and phase in the control means is within the permissible range with respect to a preset control amount, or above or below this permissible range Judgment unit (h) Transmission power / transmission reference signal level control unit (i) Generates the transmission reference signal attenuation control signal and the transmission power control signal based on the transmission power setting signal (i) The transmission side amplitude / phase control amount Judgment result of the judgment unit,
And an output level of the transmitter by generating the transmission control signal based on the transmission power control signal, and determining whether to increase or decrease the output level control amount of the transmitter by the transmission control signal. Transmission control signal setting means for controlling 【請求項２】 前記送信制御信号設定手段が、前記送信
側振幅・位相制御量判定部の判定結果及び前記送信電力
制御信号に基づいて前記送信制御信号による送信機出力
レベルの制御内容を修正するテーブル修正器と、前記送
信電力制御信号に基づいて前記送信制御信号を発生し、
かつ前記テーブル修正器でその制御内容が修正されたこ
の送信制御信号により前記送信機の出力レベルを制御す
る、テーブル・タイプの送信制御信号設定部と、を含ん
で成る、請求項１記載のＣＤＭＡ移動通信基地局装置。2. The transmission control signal setting means corrects the control content of the transmitter output level by the transmission control signal based on the determination result of the transmission side amplitude / phase control amount determination unit and the transmission power control signal. A table modifier and generating the transmission control signal based on the transmission power control signal,
2. The CDMA according to claim 1, further comprising a table type transmission control signal setting unit for controlling the output level of the transmitter by the transmission control signal whose control content is corrected by the table correction unit. Mobile communication base station device.
JP2002133740A 2002-05-09 2002-05-09 CDMA mobile communication base station apparatus Expired - Lifetime JP3670250B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002133740A JP3670250B2 (en) 2002-05-09 2002-05-09 CDMA mobile communication base station apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002133740A JP3670250B2 (en) 2002-05-09 2002-05-09 CDMA mobile communication base station apparatus

Publications (2)

Publication Number Publication Date
JP2003332969A true JP2003332969A (en) 2003-11-21
JP3670250B2 JP3670250B2 (en) 2005-07-13

Family

ID=29696611

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002133740A Expired - Lifetime JP3670250B2 (en) 2002-05-09 2002-05-09 CDMA mobile communication base station apparatus

Country Status (1)

Country Link
JP (1) JP3670250B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005041598A1 (en) * 2003-10-27 2005-05-06 Fujitsu Limited Multiantenna radio system and antenna unit
US8327208B2 (en) 2007-11-05 2012-12-04 Japan Radio Co., Ltd. Time-division duplex transmit-receive apparatus
JP2016518093A (en) * 2013-05-15 2016-06-20 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Signal conditioning method and apparatus, and cell

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005041598A1 (en) * 2003-10-27 2005-05-06 Fujitsu Limited Multiantenna radio system and antenna unit
US8327208B2 (en) 2007-11-05 2012-12-04 Japan Radio Co., Ltd. Time-division duplex transmit-receive apparatus
JP2016518093A (en) * 2013-05-15 2016-06-20 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． Signal conditioning method and apparatus, and cell

Also Published As

Publication number Publication date
JP3670250B2 (en) 2005-07-13

Similar Documents

Publication Publication Date Title
US7003310B1 (en) Coupled uplink/downlink power control and spatial processing with adaptive antenna arrays
CA2202829C (en) Devices for transmitter path weights and methods therefor
US9160427B1 (en) Transmit diversity with formed beams in a wireless communications system using a common pilot channel
US8615245B2 (en) Radio network controller, base station, mobile station, mobile communication system and mobile communication method
WO2001091330A1 (en) Calibration system for array antenna receiving apparatus
EP1969865A2 (en) Mobile station, system and method for use in wireless communications
KR20010082084A (en) Adaptive antenna operable in accordance with different algorithms
MXPA05004603A (en) Method and apparatus for adapting antenna array using received predetermined signal.
EP1545149A2 (en) Beam weightings control in a beam handoff
JPH10336087A (en) Maximum ratio synthesis transmission diversity device
JP3673732B2 (en) Array antenna transmission pattern calibration method
JP2000299659A (en) Radio transmittor output controller and radio communication system
EP1603255B1 (en) Transmission beam control method, adaptive antenna transmitter/receiver apparatus and radio base station
JP2003332969A (en) Base station device for cdma mobile communication
JPH10313472A (en) Radio base station unit and radio terminal
WO2005015773A1 (en) Array antenna receiver apparatus and received signal correcting method
WO1999051049A1 (en) Base station and method of communication
WO2010021595A1 (en) Communication device and method for controlling an antenna arrangement
JP2002325062A (en) Mobile communication system and mobile communication terminal
CN1312858C (en) Base station
US7398098B2 (en) Radio base apparatus, transmission power control method, and transmission power control program
JP2003092548A (en) Radio terminal, and method and program for transmission directivity calibration
JP2003338772A (en) Cdma mobile communication base station apparatus
JP2002271254A (en) Adaptive antenna equipment and its control method
US8130856B1 (en) Adjustable transmit diversity

Legal Events

Date Code Title Description
A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20050131

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20050412

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20050413

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20090422

Year of fee payment: 4

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20100422

Year of fee payment: 5

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20110422

Year of fee payment: 6

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120422

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20120422

Year of fee payment: 7

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130422

Year of fee payment: 8

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140422

Year of fee payment: 9