JP2001251243A - Transmission power control method and system employing channel quality - Google Patents
Transmission power control method and system employing channel qualityInfo
- Publication number
- JP2001251243A JP2001251243A JP2000064139A JP2000064139A JP2001251243A JP 2001251243 A JP2001251243 A JP 2001251243A JP 2000064139 A JP2000064139 A JP 2000064139A JP 2000064139 A JP2000064139 A JP 2000064139A JP 2001251243 A JP2001251243 A JP 2001251243A
- Authority
- JP
- Japan
- Prior art keywords
- transmission power
- power control
- station
- line quality
- determination
- 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.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、移動通信システム
の基地局および移動局における送信電力制御方法および
装置に関する。より詳細には、相手局で測定される受信
電力および回線品質の結果を判定要素に加えて行う送信
電力制御方法および装置に関する。The present invention relates to a transmission power control method and apparatus in a base station and a mobile station of a mobile communication system. More specifically, the present invention relates to a transmission power control method and apparatus for performing a result of reception power and channel quality measured by a partner station in addition to a determination factor.
【０００２】[0002]
【従来の技術】図１は、従来技術における移動通信シス
テムを概略的に示した図である。2. Description of the Related Art FIG. 1 is a diagram schematically showing a conventional mobile communication system.
【０００３】移動通信システムにおける網側のシステム
は、網側装置１００に局間伝送路１０２で接続された複
数の基地局１０４を備える。基地局１０４は無線エリア
１０６ごとに設置され、無線エリア１０６内の移動局１
０８と通信を行う。基地局１０４および移動局１０８で
は、消費電力を節約したり、必要以上の送信電力によっ
て隣接する無線エリア１０６の基地局１０４および移動
局１０８への干渉を抑えるために、送信電力の制御を行
っている。[0003] A network-side system in a mobile communication system includes a plurality of base stations 104 connected to a network-side apparatus 100 via an inter-station transmission line 102. The base station 104 is installed for each wireless area 106, and the mobile station 1 in the wireless area 106
08. The base station 104 and the mobile station 108 perform transmission power control in order to save power consumption and suppress interference of the adjacent wireless area 106 with the base station 104 and the mobile station 108 due to excessive transmission power. I have.
【０００４】従来の送信電力制御方法は、基地局および
移動局が相手局で測定される受信電力レベルを取得し、
あらかじめ設定されている目標値との関係で送信電力の
制御を行う。これにより、自局の送信電力値を制御可能
な範囲であらかじめ設定されている目標値に収束する方
式が採られていた。In the conventional transmission power control method, a base station and a mobile station obtain a reception power level measured at a partner station,
The transmission power is controlled in relation to a preset target value. As a result, a method has been adopted in which the transmission power value of the own station converges to a preset target value within a controllable range.
【０００５】図２は、従来の基地局における送信電力制
御方法のフローチャートの一例を示す。移動局は、あら
かじめ受信レベルの測定（Ｓ２０１）を行い、測定され
た受信レベルを基地局に報告する（Ｓ２０２）。基地局
では、移動局からの受信レベル報告を取得し（Ｓ２１
１）、レベル判定（Ｓ２１２）を行う。より詳細には、
移動局で測定される受信電力レベルが、あらかじめ設定
されている電力目標値からある一定の差が生じた否かを
判定（Ｓ２１２）し、生じている場合には基地局の送信
電力を制御（Ｓ２１３）している。基地局は、この電力
目標値に収束するように可能な範囲で送信電力制御を行
う。FIG. 2 shows an example of a flowchart of a conventional transmission power control method in a base station. The mobile station measures the reception level in advance (S201) and reports the measured reception level to the base station (S202). The base station acquires a reception level report from the mobile station (S21).
1), a level determination (S212) is performed. More specifically,
It is determined whether or not the received power level measured by the mobile station has a certain difference from a preset power target value (S212), and if so, the transmission power of the base station is controlled (S212). S213). The base station performs transmission power control within a possible range so as to converge to this power target value.
【０００６】[0006]
【発明が解決しようとする課題】移動局が存在する無線
エリアによっては、移動局が基地局から受信する受信電
力レベルが十分あるにもかかわらず、隣接する無線エリ
アからの干渉により回線品質が劣化していることがあ
る。ここで、回線品質とは、例えば受信波のビット誤り
率等をいう。Depending on the wireless area where the mobile station is located, the line quality is degraded due to interference from the adjacent wireless area, despite the fact that the mobile station has a sufficient reception power level to receive from the base station. May have. Here, the line quality refers to, for example, a bit error rate of a received wave.
【０００７】従来技術における送信電力制御方式では、
相手局で測定される受信電力レベルが、あらかじめ設定
されている電力目標値からある一定の差が生じた場合
に、相手局の受信電力レベルが電力目標値に収束するよ
うに設定可能な範囲で送信電力の制御を行っている。In the conventional transmission power control method,
When the reception power level measured at the partner station has a certain difference from a preset power target value, the reception power level of the partner station can be set within a range that can be set so as to converge to the power target value. Controlling transmission power.
【０００８】従って、相手局で測定される回線品質が干
渉によって劣化しているとすると、送信電力制御により
送信電力値を下げた場合、送信電力が下がることにより
回線品質がさらに劣化するため、通話が切断されてしま
うことがある。[0008] Therefore, if the line quality measured at the other station is degraded due to interference, and if the transmission power value is reduced by transmission power control, the transmission quality is further reduced due to the decrease in transmission power. May be disconnected.
【０００９】また、相手局で測定される回線品質が良い
にも関わらず、受信電力レベルが目標値より低いため
に、送信電力制御を行い送信電力値を上げることもあ
る。この場合には、必要以上の電力を基地局や移動局で
消費していることになる。[0009] Further, although the line quality measured by the partner station is good, the received power level is lower than the target value, so that the transmitted power may be increased by performing transmission power control. In this case, unnecessary power is consumed by the base station and the mobile station.
【００１０】本発明は、上述の点に鑑みてなされたもの
で、その目的とするところは、通話中の回線品質の劣化
を防ぎ、消費電力の節約が可能な送信電力制御方法及び
装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a transmission power control method and apparatus capable of preventing deterioration of line quality during a call and saving power consumption. Is to do.
【００１１】[0011]
【課題を解決するための手段】本発明は、このような課
題を達成するために、請求項１に記載の発明は、移動通
信システムの基地局および移動局のいずれかが、自局の
送信電力値を制御する送信電力制御方法において、相手
局で測定された回線品質の測定結果を受信する回線品質
受信ステップと、前記測定結果に基づいて、送信電力制
御を行う制御ステップとを備えることを特徴とする。According to the present invention, in order to achieve the above object, according to the first aspect of the present invention, either the base station or the mobile station of the mobile communication system transmits the signal to its own station. A transmission power control method for controlling a power value, comprising a line quality receiving step of receiving a measurement result of a line quality measured by a partner station, and a control step of performing transmission power control based on the measurement result. Features.
【００１２】この方法によれば、送信電力制御を行うと
きに、相手局で測定される回線品質も判定要素に加えて
送信電力制御を行うことにより、通話中の回線品質を送
信電力制御により劣化することを防ぐことが可能とな
る。According to this method, when the transmission power control is performed, the line quality measured at the partner station is also performed in addition to the determination factor to perform the transmission power control, thereby deteriorating the line quality during a call by the transmission power control. Can be prevented.
【００１３】請求項２に記載の発明は、請求項１に記載
の送信電力制御方法において、前記制御ステップは、前
記測定結果を判定する回線品質判定ステップと、該回線
品質判定ステップによる判定結果に基づいて、送信電力
制御を行うための補正値を決定する補正値決定ステップ
とを備えることを特徴とする。According to a second aspect of the present invention, in the transmission power control method according to the first aspect, the control step includes a line quality determining step of determining the measurement result and a determination result by the line quality determining step. And a correction value determining step of determining a correction value for performing transmission power control based on the correction value.
【００１４】この方法によれば、最適な送信電力量を、
相手局で測定される回線品質も判定要素に加えて送信電
力制御を行うことにより、通話中の回線品質を送信電力
制御により劣化することを防ぐことが可能となる。According to this method, the optimum transmission power amount is
By performing transmission power control in addition to the determination factor for the line quality measured by the partner station, it is possible to prevent the line quality during a call from being degraded by the transmission power control.
【００１５】請求項３に記載の発明は、請求項２に記載
の送信電力制御方法において、前記補正値決定ステップ
の出力結果に基づいて、相手局で測定された受信レベル
を判定する受信レベル判定ステップと、該受信レベル判
定ステップの判定結果に基づいて、送信電力制御を行う
ための電力制御ステップとを備えることを特徴とする。According to a third aspect of the present invention, in the transmission power control method according to the second aspect, a reception level determination for determining a reception level measured at a partner station based on an output result of the correction value determination step. And a power control step for performing transmission power control based on the determination result of the reception level determination step.
【００１６】この方法によれば、送信電力制御を行うと
きに、相手局で測定される受信電力と回線品質に基づい
て送信電力制御を行うことにより、通話中の回線品質を
送信電力制御により劣化することを防ぐことが可能とな
る。また、送信電力制御により必要以上に使われる通話
中の消費電力を節約することが可能である。According to this method, when the transmission power control is performed, the transmission power control is performed based on the reception power and the channel quality measured by the partner station, so that the line quality during a call is degraded by the transmission power control. Can be prevented. Further, it is possible to save power consumption during a call that is used more than necessary by transmission power control.
【００１７】請求項４に記載の発明は、自局の送信電力
値を制御する移動通信システムの基地局または移動局の
送信電力制御装置において、相手局で測定された回線品
質の測定結果を受信する回線品質受信手段と、前記測定
結果に基づいて、送信電力制御を行う制御手段とを備え
ることを特徴とする。According to a fourth aspect of the present invention, a base station of a mobile communication system for controlling a transmission power value of a local station or a transmission power control device of a mobile station receives a measurement result of channel quality measured at a partner station. And a control unit for performing transmission power control based on the measurement result.
【００１８】この構成によれば、送信電力制御を行うと
きに、相手局で測定される回線品質も判定要素に加えて
送信電力制御を行うことにより、通話中の回線品質を送
信電力制御により劣化することを防ぐことが可能とな
る。According to this configuration, when the transmission power control is performed, the line quality measured at the other station is added to the determination factor and the transmission power control is performed, so that the line quality during a call is degraded by the transmission power control. Can be prevented.
【００１９】請求項５に記載の発明は、請求項４に記載
の送信電力制御装置において、前記制御手段は、前記測
定結果を判定する回線品質判定手段と、該回線品質判定
手段の判定結果に基づいて、送信電力制御を行うための
補正値を決定する補正値決定手段とを備えることを特徴
とする。According to a fifth aspect of the present invention, in the transmission power control apparatus according to the fourth aspect, the control means includes a line quality determining means for determining the measurement result and a determination result of the line quality determining means. Correction value determining means for determining a correction value for performing transmission power control based on the correction value.
【００２０】この構成によれば、最適な送信電力量を、
相手局で測定される回線品質も判定要素に加えて送信電
力制御を行うことにより、通話中の回線品質を送信電力
制御により劣化することを防ぐことが可能となる。According to this configuration, the optimum transmission power amount is
By performing transmission power control in addition to the determination factor for the line quality measured by the partner station, it is possible to prevent the line quality during a call from being degraded by the transmission power control.
【００２１】請求項６に記載の発明は、請求項５に記載
の送信電力制御装置において、前記補正値決定手段の出
力結果に基づいて、相手局で測定された受信レベルを判
定する受信レベル判定手段と、該受信レベル判定手段の
判定結果に基づいて、送信電力制御を行うための制御手
段とを備えることを特徴とする。According to a sixth aspect of the present invention, in the transmission power control apparatus according to the fifth aspect, a reception level determination for determining a reception level measured at a partner station based on an output result of the correction value determination means. Means, and a control means for performing transmission power control based on a result of the determination by the reception level determining means.
【００２２】この構成によれば、送信電力制御を行うと
きに、相手局で測定される受信電力と回線品質に基づい
て送信電力制御を行うことにより、通話中の回線品質を
送信電力制御により劣化することを防ぐことが可能とな
る。また、送信電力制御により必要以上に使われる通話
中の消費電力を節約することが可能である。According to this configuration, when the transmission power control is performed, the transmission power control is performed based on the reception power and the channel quality measured by the partner station, so that the line quality during a call is degraded by the transmission power control. Can be prevented. Further, it is possible to save power consumption during a call that is used more than necessary by transmission power control.
【００２３】[0023]
【発明の実施の形態】以下、図面を参照しながら本発明
の実施形態について詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２４】図３は、本発明における、送信電力制御方
法のフローチャートの一例を示す。移動局は、あらかじ
め受信レベルおよび回線品質の測定（Ｓ３０１，Ｓ３０
２）を行い、測定された受信レベルおよび回線品質を基
地局に報告する（Ｓ３０３）。基地局では、移動局から
の受信レベル・回線品質報告を取得し（Ｓ３１１）、回
線品質判定（Ｓ３１２）を行う。ここで、回線品質と
は、例えば受信波のビット誤り率等をいう。FIG. 3 shows an example of a flowchart of a transmission power control method according to the present invention. The mobile station measures the reception level and the channel quality in advance (S301, S30
2) is performed, and the measured reception level and channel quality are reported to the base station (S303). The base station acquires the reception level / channel quality report from the mobile station (S311), and performs channel quality determination (S312). Here, the line quality refers to, for example, a bit error rate of a received wave.
【００２５】より詳細には、移動局で測定される回線品
質を、あらかじめ設定されている品質目標値と比較し
（Ｓ３１２）、劣化している場合には、電力目標値に正
の補正値（＋ＡｄＢ）を加える（Ｓ３１３）。More specifically, the line quality measured by the mobile station is compared with a preset quality target value (S312). If the quality is degraded, a positive correction value ( + AdB) is added (S313).
【００２６】さらに、移動局で測定される受信電力レベ
ルが、あらかじめ設定されている電力目標値からある一
定の差が生じた否かを判定（Ｓ３１４）し、生じている
場合には基地局の送信電力を制御（Ｓ３１５）してい
る。Further, it is determined whether the reception power level measured by the mobile station has a certain difference from a preset power target value (S314). The transmission power is controlled (S315).
【００２７】これにより、移動局で測定される回線品質
が悪い場合には、この電力目標値に補正値を加えた値に
収束するように可能な範囲で送信電力制御を行う。従っ
て、回線品質が品質目標値により劣化している場合に
は、回線品質が劣化していない場合に比べて高い受信電
力に収束するようになる。従って、通話中の回線品質
を、送信電力制御により劣化することを防ぐことが可能
となる。Thus, when the channel quality measured by the mobile station is poor, transmission power control is performed within a range as possible as to converge to a value obtained by adding a correction value to the target power value. Therefore, when the channel quality is degraded by the quality target value, the received power converges to a higher level than when the channel quality is not degraded. Therefore, it is possible to prevent the line quality during a call from deteriorating due to transmission power control.
【００２８】さらに本発明における、送信電力制御方法
のフローチャートの一例を図４に示す。図３の場合と同
様に、移動局はあらかじめ受信レベルおよび回線品質の
測定（Ｓ４０１，Ｓ４０２）を行い、測定された受信レ
ベルおよび回線品質を基地局に報告する（Ｓ４０３）。
基地局では、移動局からの受信レベルおよび回線品質報
告を取得し（Ｓ４１１）、レベル判定（Ｓ４１２）を行
う。FIG. 4 shows an example of a flowchart of a transmission power control method according to the present invention. As in the case of FIG. 3, the mobile station measures the reception level and the channel quality in advance (S401, S402), and reports the measured reception level and the channel quality to the base station (S403).
The base station acquires the reception level and the channel quality report from the mobile station (S411), and performs level determination (S412).
【００２９】より詳細には、移動局で測定される回線品
質を、あらかじめ設定されている品質目標値と比較し
（Ｓ４１２）、良い場合には、電力目標値に負の補正値
（−ＡｄＢ）を加える（Ｓ４１３）。More specifically, the line quality measured by the mobile station is compared with a preset quality target value (S412), and if it is good, a negative correction value (-AdB) is added to the power target value. Is added (S413).
【００３０】さらに、移動局で測定される受信電力レベ
ルが、あらかじめ設定されている電力目標値からある一
定の差が生じた否かを判定（Ｓ４１４）し、生じている
場合には基地局の送信電力を制御（Ｓ４１５）してい
る。Further, it is determined whether the received power level measured by the mobile station has a certain difference from a preset power target value (S414). The transmission power is controlled (S415).
【００３１】これにより、移動局で測定される回線品質
が悪い場合には、この電力目標値に補正値を加えた値に
収束するように可能な範囲で送信電力制御を行う。従っ
て、回線品質が品質目標値により良い場合には、回線品
質が劣化している場合に比べて低い受信電力に収束する
ようになる。従って、送信電力制御により必要以上に使
われる通話中の消費電力を節約することが可能である。Thus, when the line quality measured by the mobile station is poor, the transmission power control is performed within a range as possible as to converge to a value obtained by adding the correction value to the power target value. Therefore, when the line quality is better than the quality target value, the received power converges to a lower level than when the line quality is degraded. Therefore, it is possible to reduce power consumption during a call that is used more than necessary by transmission power control.
【００３２】以上説明したように、回線品質が劣化して
いる場合と回線品質が良い場合とで、異なる送信電力制
御方法を併用することにより、最適な送信電力量を導出
することができる。As described above, it is possible to derive an optimum amount of transmission power by using different transmission power control methods depending on whether the line quality is degraded or the line quality is good.
【００３３】図５（ａ）に、本発明にかかる送信電力制
御装置を実装した移動局のブロック構成の一例を、図５
（ｂ）に、本発明にかかる送信電力制御装置を実装した
基地局のブロック構成の一例を示す。FIG. 5A shows an example of a block configuration of a mobile station in which the transmission power control device according to the present invention is mounted.
(B) shows an example of a block configuration of a base station equipped with the transmission power control device according to the present invention.
【００３４】移動局５００は、受信部５０２、受信レベ
ル測定部５０４、回線品質測定部５０６、制御部５０
８、および送信部５１０を備える。移動局５００は、あ
らかじめ基地局５２０からの電波を受信部５０２で受信
し、受信レベル測定部５０４にて受信レベルを、回線品
質測定部５０６にて回線品質を測定する。測定結果は、
制御部５０８にて処理され、送信部５１０から基地局５
２０へと報告される。The mobile station 500 includes a reception section 502, a reception level measurement section 504, a channel quality measurement section 506, and a control section 50.
8 and a transmission unit 510. In mobile station 500, radio wave from base station 520 is received in advance by reception section 502, and reception level is measured by reception level measurement section 504, and channel quality is measured by channel quality measurement section 506. The measurement result is
The processing is performed by the control unit 508, and the transmission
Reported to 20.
【００３５】基地局５２０は、受信部５２２、制御部５
２４、送信電力制御部５２６、送信部５２８を備える。
制御部５２４は、移動局５００からの受信レベルおよび
回線品質報告を、受信部５２２から取得する。制御部５
２４では、この報告に基づいて、前述した方法により送
信電力制御の要否を決定し、送信電力制御部５２６への
制御命令によって、送信部５２８から出力される電力を
制御する。The base station 520 includes a receiving unit 522, a control unit 5
24, a transmission power control unit 526 and a transmission unit 528.
The control unit 524 acquires the reception level and the channel quality report from the mobile station 500 from the reception unit 522. Control unit 5
In 24, based on this report, the necessity of transmission power control is determined by the above-described method, and the power output from the transmission unit 528 is controlled by a control command to the transmission power control unit 526.
【００３６】以上、移動局で測定された受信レベルおよ
び回線品質に基づいて、基地局の送信電力を制御する方
法および装置について述べた。基地局で測定された受信
レベルおよび回線品質に基づいて、移動局の送信電力を
制御する方法および装置についても、同様に導くことが
できる。The method and apparatus for controlling the transmission power of the base station based on the reception level and the channel quality measured by the mobile station have been described above. A method and apparatus for controlling the transmission power of the mobile station based on the reception level and the channel quality measured by the base station can be similarly derived.
【００３７】[0037]
【発明の効果】以上詳細に説明したように、本発明によ
れば、相手局で測定された回線品質の測定結果を受信す
る回線品質受信ステップと、測定結果に基づいて、送信
電力制御を行う制御ステップとを備えたので、送信電力
制御を行うときに、相手局で測定される回線品質も判定
要素に加えて送信電力制御を行うことができ、通話中の
回線品質を送信電力制御により劣化することを防ぐこと
が可能となる。As described above in detail, according to the present invention, a line quality receiving step of receiving a measurement result of the line quality measured at the partner station, and transmission power control is performed based on the measurement result. Control step, when performing transmission power control, it is possible to perform transmission power control by adding the line quality measured at the partner station to the judgment factor, and the line quality during a call is degraded by the transmission power control. Can be prevented.
【００３８】また、本発明によれば、制御ステップは、
測定結果を判定する回線品質判定ステップと、回線品質
判定ステップによる判定結果に基づいて、送信電力制御
を行うための補正値を決定する補正値決定ステップとを
備えたので、最適な送信電力量を、相手局で測定される
回線品質も判定要素に加えて送信電力制御を行うことが
でき、通話中の回線品質を送信電力制御により劣化する
ことを防ぐことが可能となる。According to the present invention, the control step includes:
A line quality determining step of determining a measurement result, and a correction value determining step of determining a correction value for performing transmission power control based on the determination result of the line quality determining step. In addition, transmission power control can be performed in addition to the determination factor of the line quality measured by the partner station, and it is possible to prevent the line quality during a call from being deteriorated by the transmission power control.
【００３９】さらに本発明によれば、補正値決定ステッ
プの出力結果に基づいて、相手局で測定された受信レベ
ルを判定する受信レベル判定ステップと、受信レベル判
定ステップの判定結果に基づいて、送信電力制御を行う
ための電力制御ステップとを備えたので、送信電力制御
を行うときに、相手局で測定される受信電力と回線品質
に基づいて送信電力制御を行うことができ、通話中の回
線品質を送信電力制御により劣化することを防ぐことが
可能となる。また、送信電力制御により必要以上に使わ
れる通話中の消費電力を節約することが可能である。Further, according to the present invention, based on the output result of the correction value determining step, a receiving level determining step of determining the receiving level measured at the other station, and transmitting based on the determining result of the receiving level determining step. And a power control step for performing power control, so that when performing transmission power control, it is possible to perform transmission power control based on reception power and line quality measured at a partner station, and It is possible to prevent quality from deteriorating due to transmission power control. Further, it is possible to save power consumption during a call that is used more than necessary by transmission power control.
【図１】従来技術における移動通信システムを概略的に
示す図である。FIG. 1 is a diagram schematically illustrating a mobile communication system according to the related art.
【図２】従来技術における基地局の送信電力制御方法を
示すフローチャートの一例である。FIG. 2 is an example of a flowchart illustrating a transmission power control method of a base station according to the related art.
【図３】本発明の実施の形態において、回線品質があら
かじめ設定されている品質目標値より劣化している場合
の、送信電力制御方法のフローチャートの一例を示す。FIG. 3 shows an example of a flowchart of a transmission power control method when the line quality is degraded from a preset quality target value in the embodiment of the present invention.
【図４】本発明の実施の形態において、回線品質があら
かじめ設定されている品質目標値より良い場合の、送信
電力制御方法のフローチャートの一例を示す。FIG. 4 shows an example of a flowchart of a transmission power control method when the line quality is better than a preset quality target value in the embodiment of the present invention.
【図５】本発明の実施の形態において、送信電力制御方
法を実装した移動局および基地局のブロック構成の一例
を示す。FIG. 5 shows an example of a block configuration of a mobile station and a base station implementing the transmission power control method in the embodiment of the present invention.
１００ 網側装置 １０２ 局間伝送路 １０４ 基地局 １０６ 無線エリア １０８ 移動局 ５００ 移動局 ５０２，５２２ 受信部 ５０４ 受信レベル測定部 ５０６ 回線品質測定部 ５０８，５２４ 制御部 ５１０，５２８ 送信部 ５２０ 基地局 ５２６ 送信電力制御部 REFERENCE SIGNS LIST 100 network side device 102 inter-station transmission line 104 base station 106 wireless area 108 mobile station 500 mobile station 502, 522 reception unit 504 reception level measurement unit 506 line quality measurement unit 508, 524 control unit 510, 528 transmission unit 520 base station 526 Transmission power control unit
───────────────────────────────────────────────────── フロントページの続き (72)発明者 北川 真清 東京都千代田区永田町二丁目11番１号 エ ヌ・ティ・ティ移動通信網株式会社内 (72)発明者 池下 靖史 東京都千代田区永田町二丁目11番１号 エ ヌ・ティ・ティ移動通信網株式会社内 Ｆターム(参考） 5K014 AA01 EA00 FA00 FA11 GA01 GA02 HA00 HA05 5K060 BB05 CC04 CC11 DD04 KK01 KK06 LL01 5K067 AA23 AA43 DD27 DD44 DD45 DD46 EE02 EE10 GG08 GG09 HH21 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masayoshi Kitagawa 2-11-1 Nagatacho, Chiyoda-ku, Tokyo NTT Mobile Communications Network Co., Ltd. (72) Inventor Yasushi Ikeshita Nagatacho, Chiyoda-ku, Tokyo F-term (reference) 2-11-11 NTT Mobile Communication Network Co., Ltd. 5K014 AA01 EA00 FA00 FA11 GA01 GA02 HA00 HA05 5K060 BB05 CC04 CC11 DD04 KK01 KK06 LL01 5K067 AA23 AA43 DD27 DD44 DD45 DD46 EE02 EE10 GG08 GG09 HH21
Claims (6)
のいずれかが自局の送信電力値を制御する送信電力制御
方法において、 相手局で測定された回線品質の測定結果を受信する回線
品質受信ステップと、 前記測定結果に基づいて送信電力制御を行う制御ステッ
プとを備えることを特徴とする送信電力制御方法。1. A transmission power control method in which one of a base station and a mobile station of a mobile communication system controls a transmission power value of its own station, wherein a line quality reception method receives a measurement result of a line quality measured by a partner station. And a control step of performing transmission power control based on the measurement result.
いて、 前記制御ステップは、 前記測定結果を判定する回線品質判定ステップと、 該回線品質判定ステップによる判定結果に基づいて送信
電力制御を行うための補正値を決定する補正値決定ステ
ップとを備えることを特徴とする送信電力制御方法。2. The transmission power control method according to claim 1, wherein the control step includes: a line quality determination step of determining the measurement result; and a transmission power control based on the determination result of the line quality determination step. And a correction value determining step of determining a correction value for the transmission power control.
いて、 前記補正値決定ステップの出力結果に基づいて相手局で
測定された受信レベルを判定する受信レベル判定ステッ
プと、 該受信レベル判定ステップの判定結果に基づいて送信電
力制御を行うための電力制御ステップとを備えることを
特徴とする送信電力制御方法。3. The transmission power control method according to claim 2, wherein a reception level determination step of determining a reception level measured at a partner station based on an output result of the correction value determination step; And a power control step for performing transmission power control based on the result of the determination.
ステムの基地局または移動局の送信電力制御装置におい
て、 相手局で測定された回線品質の測定結果を受信する回線
品質受信手段と、 前記測定結果に基づいて送信電力制御を行う制御手段と
を備えることを特徴とする送信電力制御装置。4. A transmission power control device of a base station or a mobile station of a mobile communication system for controlling a transmission power value of a self station, a line quality receiving means for receiving a measurement result of a line quality measured by a partner station, Control means for performing transmission power control based on the measurement result.
いて、 前記制御手段は、 前記測定結果を判定する回線品質判定手段と、 該回線品質判定手段の判定結果に基づいて送信電力制御
を行うための補正値を決定する補正値決定手段とを備え
ることを特徴とする送信電力制御装置。5. The transmission power control device according to claim 4, wherein the control unit performs a transmission power control based on a determination result of the line quality determination unit that determines the measurement result. Transmission power control apparatus, comprising: a correction value determining unit for determining a correction value for the transmission.
いて、 前記補正値決定手段の出力結果に基づいて相手局で測定
された受信レベルを判定する受信レベル判定手段と、 該受信レベル判定手段の判定結果に基づいて送信電力制
御を行うための制御手段とを備えることを特徴とする送
信電力制御装置。6. The transmission power control device according to claim 5, wherein a reception level determination unit that determines a reception level measured at a partner station based on an output result of the correction value determination unit, and the reception level determination unit. And a control unit for performing transmission power control based on a result of the determination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000064139A JP2001251243A (en) | 2000-03-08 | 2000-03-08 | Transmission power control method and system employing channel quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000064139A JP2001251243A (en) | 2000-03-08 | 2000-03-08 | Transmission power control method and system employing channel quality |
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| Publication Number | Publication Date |
|---|---|
| JP2001251243A true JP2001251243A (en) | 2001-09-14 |
Family
ID=18583887
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000064139A Pending JP2001251243A (en) | 2000-03-08 | 2000-03-08 | Transmission power control method and system employing channel quality |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289280A (en) * | 2002-03-28 | 2003-10-10 | Sony Corp | Radio communications system, mobile radio communication apparatus and method, fixed radio communication apparatus and method, and program |
| JP2004260467A (en) * | 2003-02-25 | 2004-09-16 | Ntt Docomo Inc | Radio packet communication system, radio packet communication method, base station and mobile station |
| JP2005073149A (en) * | 2003-08-27 | 2005-03-17 | Casio Comput Co Ltd | Radio communication apparatus and radio communication system |
| JP2007267209A (en) * | 2006-03-29 | 2007-10-11 | Nec Corp | Mobile terminal and its transmission power control method |
| JP2016046761A (en) * | 2014-08-26 | 2016-04-04 | 沖電気工業株式会社 | Radio communication system, transmission power control method and radio communication device |
| JP2019013053A (en) * | 2018-10-25 | 2019-01-24 | 沖電気工業株式会社 | Radio communication system, transmission power control method, and radio communication device |
-
2000
- 2000-03-08 JP JP2000064139A patent/JP2001251243A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003289280A (en) * | 2002-03-28 | 2003-10-10 | Sony Corp | Radio communications system, mobile radio communication apparatus and method, fixed radio communication apparatus and method, and program |
| JP2004260467A (en) * | 2003-02-25 | 2004-09-16 | Ntt Docomo Inc | Radio packet communication system, radio packet communication method, base station and mobile station |
| JP2005073149A (en) * | 2003-08-27 | 2005-03-17 | Casio Comput Co Ltd | Radio communication apparatus and radio communication system |
| JP2007267209A (en) * | 2006-03-29 | 2007-10-11 | Nec Corp | Mobile terminal and its transmission power control method |
| JP4609364B2 (en) * | 2006-03-29 | 2011-01-12 | 日本電気株式会社 | Mobile terminal apparatus and transmission power control method thereof |
| JP2016046761A (en) * | 2014-08-26 | 2016-04-04 | 沖電気工業株式会社 | Radio communication system, transmission power control method and radio communication device |
| JP2019013053A (en) * | 2018-10-25 | 2019-01-24 | 沖電気工業株式会社 | Radio communication system, transmission power control method, and radio communication device |
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