JP2014107728A - Reception device and reception method - Google Patents

Reception device and reception method Download PDF

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JP2014107728A
JP2014107728A JP2012259663A JP2012259663A JP2014107728A JP 2014107728 A JP2014107728 A JP 2014107728A JP 2012259663 A JP2012259663 A JP 2012259663A JP 2012259663 A JP2012259663 A JP 2012259663A JP 2014107728 A JP2014107728 A JP 2014107728A
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JP6025524B2 (en
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Sakiko Nakamura
咲子 中村
Jun Kitakado
順 北門
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Kyocera Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a reception device and reception method capable of adaptively controlling gain regardless of a modulation system for reception data.SOLUTION: A reception device 1 for receiving reception data 20 which is transmitted from a transmission device and includes a control data section 21 modulated by using a modulation system not accompanied by change of amplitude and a user data section 22 modulated by using a predetermined modulation system comprises: a control unit 162 which sets a power measurement section of the reception data 20 in the control data section 21 when the predetermined modulation system is a modulation system accompanied by change of amplitude, and calculates maximum amplitude on the basis of reception power measured in the power measurement section; and a gain control unit 163 for controlling gain of an amplification unit 12 for performing amplification processing on a reception signal received in the next frame, on the basis of the maximum amplitude.

Description

本発明は、利得を制御する受信装置及び受信方法に関する。   The present invention relates to a receiving apparatus and a receiving method for controlling gain.

従来無線装置において、信号復調部に最適な電力レベルの受信信号を供給するために、現在受信したフレームの電力を基に、次のフレームの利得を制御（自動利得制御）していた（例えば特許文献１）。   In a conventional radio apparatus, in order to supply a reception signal having an optimum power level to a signal demodulator, the gain of the next frame is controlled (automatic gain control) based on the power of the currently received frame (for example, patent) Reference 1).

特開２００６−１９７６５２号公報JP 2006-197652 A

受信データが例えばＱＡＭ等の変調方式により変調された部分を含む場合の従来の無線装置の動作について説明する。図８は受信データがＱＰＳＫとＱＡＭにより変調されている例を示す。従来の無線装置は、受信データの略中央部の区間を電力測定区間とし、当該区間の電力を元に現在受信したフレームの電力を算出し、次のフレームの利得を制御する。しかしながら、受信データの略中央部の区間はＱＡＭにより変調されているため、変調方式による振幅の変化が含まれてしまい、正確な受信電力を算出することができず、適切な利得を得ることができない。そのため、従来の無線装置は、次フレームにおける利得制御において受信信号の振幅を適切なレベルに調整できず、受信エラーが生じてしまっていた。   The operation of the conventional radio apparatus when the received data includes a portion modulated by a modulation scheme such as QAM will be described. FIG. 8 shows an example in which received data is modulated by QPSK and QAM. A conventional radio apparatus uses a section at a substantially central portion of received data as a power measurement section, calculates the power of the currently received frame based on the power of the section, and controls the gain of the next frame. However, since the section in the substantially central part of the received data is modulated by QAM, the amplitude change due to the modulation method is included, and it is not possible to calculate an accurate received power and obtain an appropriate gain. Can not. For this reason, the conventional radio apparatus cannot adjust the amplitude of the received signal to an appropriate level in gain control in the next frame, and a reception error has occurred.

従って、上記のような問題点に鑑みてなされた本発明の目的は、受信データの変調方式にかかわらず適応的に利得を制御することができる受信装置及び受信方法を提供することにある。   Accordingly, an object of the present invention made in view of the above problems is to provide a receiving apparatus and a receiving method capable of adaptively controlling the gain regardless of the modulation method of the received data.

上記課題を解決するために本発明に係る受信装置は、
振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信装置であって、
前記所定の変調方式が、振幅の変化を伴う変調方式である場合、前記受信データにおける電力測定区間を前記制御データ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出する制御部と、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御する利得制御部と、
を備えることを特徴とする。 In order to solve the above problems, a receiving apparatus according to the present invention provides:
A receiving apparatus that receives received data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is a modulation method with a change in amplitude, the power measurement interval in the received data is set as the control data interval, and the maximum amplitude is calculated based on the received power measured in the power measurement interval A control unit,
Based on the maximum amplitude, a gain control unit that controls the gain of the amplification unit that performs amplification processing of the received signal received in the next frame;
It is characterized by providing.

また、本発明に係る受信装置は、
振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信装置であって、
前記所定の変調方式が、振幅の変化を伴う変調方式ではない場合、前記受信データにおける電力測定区間を前記ユーザデータ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出する制御部と、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御する利得制御部と、
を備えることを特徴とする。 The receiving device according to the present invention is
A receiving apparatus that receives received data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is not a modulation method with amplitude change, the power measurement section in the received data is set as the user data section, and the maximum amplitude is calculated based on the received power measured in the power measurement section A control unit,
Based on the maximum amplitude, a gain control unit that controls the gain of the amplification unit that performs amplification processing of the received signal received in the next frame;
It is characterized by providing.

また、本発明に係る受信装置は、
前記制御部はさらに、ユーザデータ区間におけるフェージングの有無を検出し、フェージングが生じている場合、前記制御データ区間における受信電力に基づき最大振幅を算出し、前記制御データ区間から算出した最大振幅及び前記ユーザデータ区間から算出した最大振幅に基づき予測電力を算出し、
前記利得制御部は、前記予測電力に基づき前記増幅部の利得を制御することを特徴とする。 The receiving device according to the present invention is
The control unit further detects the presence or absence of fading in the user data section, and when fading occurs, calculates the maximum amplitude based on the received power in the control data section, the maximum amplitude calculated from the control data section and the Calculate the predicted power based on the maximum amplitude calculated from the user data section,
The gain control unit controls the gain of the amplification unit based on the predicted power.

また、本発明に係る受信装置は、
前記受信装置はさらに直近のフレームで増幅処理を行った際の最大振幅を記憶する記憶部を備え、
前記制御データ区間から算出した最大振幅と、前記制御部は前記ユーザデータ区間から算出した最大振幅と、前記記憶部に記憶された前記直近のフレームで増幅処理を行った際の最大振幅とに基づき予測電力を算出することを特徴とする。 The receiving device according to the present invention is
The receiving device further includes a storage unit that stores the maximum amplitude when the amplification process is performed on the latest frame,
Based on the maximum amplitude calculated from the control data section, the maximum amplitude calculated by the control unit from the user data section, and the maximum amplitude when amplification processing is performed on the latest frame stored in the storage unit The predicted power is calculated.

また、本発明に係る受信装置は、
前記制御データ区間における電力測定は、該制御データ区間のプリアンブル区間において行うことを特徴とする。 The receiving device according to the present invention is
The power measurement in the control data section is performed in a preamble section of the control data section.

また、本発明に係る受信方法は、
振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信方法であって、
前記所定の変調方式が、振幅の変化を伴う変調方式である場合、前記受信データにおける電力測定区間を前記制御データ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出するステップと、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御するステップと、
を含むことを特徴とする。 The receiving method according to the present invention is as follows.
A reception method for receiving reception data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is a modulation method with a change in amplitude, the power measurement interval in the received data is set as the control data interval, and the maximum amplitude is calculated based on the received power measured in the power measurement interval And steps to
Based on the maximum amplitude, controlling the gain of the amplification unit that performs the amplification process of the received signal received in the next frame;
It is characterized by including.

また、本発明に係る受信方法は、
振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信方法であって、
前記所定の変調方式が、振幅の変化を伴う変調方式ではない場合、前記受信データにおける電力測定区間を前記ユーザデータ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出するステップと、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御するステップと、
を含むことを特徴とする。 The receiving method according to the present invention is as follows.
A reception method for receiving reception data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is not a modulation method with amplitude change, the power measurement section in the received data is set as the user data section, and the maximum amplitude is calculated based on the received power measured in the power measurement section And steps to
Based on the maximum amplitude, controlling the gain of the amplification unit that performs the amplification process of the received signal received in the next frame;
It is characterized by including.

また、本発明に係る受信方法は、
前記受信方法はさらに、ユーザデータ区間におけるフェージングの有無を検出するステップと、
フェージングが生じている場合、前記制御データ区間における受信電力に基づき最大振幅を算出し、前記制御データ区間から算出した最大振幅及び前記ユーザデータ区間から算出した最大振幅に基づき予測電力を算出するステップと、
前記利得を制御するステップは、前記予測電力に基づき前記増幅部の利得を制御することを特徴とする。 The receiving method according to the present invention is as follows.
The receiving method further comprises detecting the presence or absence of fading in the user data section;
If fading has occurred, calculating a maximum amplitude based on the received power in the control data interval, and calculating a predicted power based on the maximum amplitude calculated from the control data interval and the maximum amplitude calculated from the user data interval; ,
The step of controlling the gain is characterized by controlling the gain of the amplification unit based on the predicted power.

また、本発明に係る受信方法は、
前記受信方法はさらに直近のフレームで増幅処理を行った際の最大振幅を記憶するステップを含み、
前記予測電力を算出するステップは、前記制御データ区間から算出した最大振幅と、前記制御部は前記ユーザデータ区間から算出した最大振幅と、前記記憶ステップで記憶された前記直近のフレームで増幅処理を行った際の最大振幅とに基づき予測電力を算出することを特徴とする。 The receiving method according to the present invention is as follows.
The reception method further includes the step of storing the maximum amplitude when the amplification process is performed on the latest frame,
The step of calculating the predicted power includes the maximum amplitude calculated from the control data interval, the control unit performs an amplification process on the maximum amplitude calculated from the user data interval, and the latest frame stored in the storage step. The predicted power is calculated based on the maximum amplitude when it is performed.

また、本発明に係る受信方法は、
前記制御データ区間における電力測定は、該制御データ区間のプリアンブル区間において行うことを特徴とする。 The receiving method according to the present invention is as follows.
The power measurement in the control data section is performed in a preamble section of the control data section.

本発明における受信装置及び受信方法によれば、受信データの変調方式にかかわらず適応的に利得を制御することができる。   According to the receiving apparatus and the receiving method of the present invention, the gain can be adaptively controlled regardless of the received data modulation scheme.

実施の形態１の受信装置のブロック図である。3 is a block diagram of a receiving apparatus according to Embodiment 1. FIG. 受信データのデータ構造の例を示す図である。It is a figure which shows the example of the data structure of reception data. 実施の形態１の受信装置の動作を示すフローチャートである。3 is a flowchart illustrating an operation of the receiving apparatus according to the first embodiment. 実施の形態２の受信装置のブロック図である。6 is a block diagram of a receiving apparatus according to Embodiment 2. FIG. 実施の形態２の受信装置の動作を示すフローチャートである。6 is a flowchart illustrating an operation of the receiving apparatus according to the second embodiment. 実施の形態３の受信装置のブロック図である。10 is a block diagram of a receiving apparatus according to Embodiment 3. FIG. 実施の形態３の受信装置の動作を示すフローチャートである。10 is a flowchart illustrating an operation of the receiving apparatus according to the third embodiment. 受信データの例を示す図である。It is a figure which shows the example of reception data.

以下、本発明の実施の形態について説明する。   Embodiments of the present invention will be described below.

（実施の形態１）
図１は本発明の実施の形態１に係る受信装置のブロック図である。本発明の実施の形態１に係る受信装置１は、複数の受信アンテナ１１と、複数の増幅部（ＡＭＰ）１２と、複数のアナログ／デジタル変換部（Ａ／Ｄ）１３と、複数の乗算部１４と、合成部１５と、受信部１６とを備える。受信部１６は、復調部１６１と、制御部１６２と、利得制御部１６３とを備え、受信データ２０に係る各種制御を行う。受信装置１は移動局装置や基地局装置等である。 (Embodiment 1)
FIG. 1 is a block diagram of a receiving apparatus according to Embodiment 1 of the present invention. A receiving apparatus 1 according to Embodiment 1 of the present invention includes a plurality of receiving antennas 11, a plurality of amplification units (AMP) 12, a plurality of analog / digital conversion units (A / D) 13, and a plurality of multiplication units. 14, a synthesis unit 15, and a reception unit 16. The reception unit 16 includes a demodulation unit 161, a control unit 162, and a gain control unit 163, and performs various controls related to the reception data 20. The receiving device 1 is a mobile station device or a base station device.

各受信アンテナ１１は、送信装置から送信される受信信号を受信する。各増幅部１２は、各受信アンテナ１１から受けた受信信号を利得制御部１６３の制御に基づき、増幅処理をする。そして各増幅部１２は、増幅した受信信号を各アナログ／デジタル変換部１３に渡す。   Each reception antenna 11 receives a reception signal transmitted from the transmission device. Each amplification unit 12 amplifies the reception signal received from each reception antenna 11 based on the control of the gain control unit 163. Each amplification unit 12 passes the amplified reception signal to each analog / digital conversion unit 13.

各アナログ／デジタル変換部１３は、増幅された受信信号を受取ると、当該受信信号をアナログからデジタルに変換し、受信データ２０を出力する。そして各アナログ／デジタル変換部１３は、受信データ２０を各乗算部１４及び利得制御部１６３に渡す。   Each analog / digital converter 13 receives the amplified received signal, converts the received signal from analog to digital, and outputs received data 20. Each analog / digital converter 13 passes the received data 20 to each multiplier 14 and gain controller 163.

各乗算部１４は、アナログ／デジタル変換部１３から受取った受信データ２０に、受信アンテナ１１毎に定められる重み係数を乗算し、合成部１５に渡す。合成部１５は、各アンテナが受信し、重み係数が乗算された受信データ２０を合成し、受信部１６の復調部１６１に渡す。   Each multiplication unit 14 multiplies the reception data 20 received from the analog / digital conversion unit 13 by a weighting factor determined for each reception antenna 11 and passes the result to the synthesis unit 15. The synthesizer 15 synthesizes the reception data 20 received by each antenna and multiplied by the weighting coefficient, and passes the synthesized data to the demodulator 161 of the receiver 16.

復調部１６１は、受信データ２０の復調処理を行う。ここで受信データ２０の構造について説明する。図２は、受信データ２０のデータ構造を示す。図２に示すように、受信データ２０は、制御データ区間２１と、ユーザデータ区間２２とを有する。制御データ区間２１は、振幅の変化を伴わない変調方式で変調される。振幅の変化を伴わない変調方式は、例えばＱＰＳＫ、ＢＰＳＫである。制御データ区間２１は制御情報が割当てられるデータ区間であり、過度応答用ランプタイム（Ｒ）と、スタートシンボル（ＳＳ）と、プリアンブル（ＰＲ）と、同期ワード（ＵＷ）とを含む。ユーザデータ区間２２は、データ部（Ｉ）を含み、所定の変調方式で変調される。所定の変調方式は、振幅の変化を伴わない変調方式と、振幅の変化を伴う変調方式のいずれかである。振幅の変化を伴う変調方式は、例えばＱＡＭ、１６ＱＡＭ、６４ＱＡＭである。   The demodulation unit 161 performs a demodulation process on the reception data 20. Here, the structure of the reception data 20 will be described. FIG. 2 shows the data structure of the received data 20. As shown in FIG. 2, the reception data 20 has a control data section 21 and a user data section 22. The control data section 21 is modulated by a modulation method that does not involve a change in amplitude. Modulation methods that do not involve a change in amplitude are, for example, QPSK and BPSK. The control data section 21 is a data section to which control information is assigned, and includes a transient response ramp time (R), a start symbol (SS), a preamble (PR), and a synchronization word (UW). The user data section 22 includes a data part (I) and is modulated by a predetermined modulation method. The predetermined modulation method is either a modulation method that does not change the amplitude or a modulation method that changes the amplitude. For example, QAM, 16QAM, and 64QAM are modulation schemes that involve changes in amplitude.

制御部１６２は、受信部１６に係る各種制御を行う。制御部１６２は、利得制御部１６３から各受信データ２０を受信する。また制御部１６２は受信データ２０に係るユーザデータ区間２２の所定の変調方式が振幅の変化を伴う変調方式であるか否かを判定する。そして制御部１６２は、各受信データ２０に係るユーザデータ区間２２の所定の変調方式が振幅の変化を伴う変調方式であると判定した場合、各受信データ２０における電力測定区間を制御データ区間２１に設定し、当該電力測定区間で測定した受信電力に基づき、最大振幅を算出する。好適には制御データ区間における電力測定区間は、プリアンブル（ＰＲ）の区間（プリアンブル区間）であり、電力測定はプリアンブル区間により行う。そして制御部１６２は、算出した各受信データ２０の最大振幅を、利得制御部１６３に渡す。   The control unit 162 performs various controls related to the receiving unit 16. The control unit 162 receives each received data 20 from the gain control unit 163. Further, the control unit 162 determines whether or not the predetermined modulation method of the user data section 22 related to the reception data 20 is a modulation method that involves a change in amplitude. When the control unit 162 determines that the predetermined modulation scheme of the user data section 22 related to each received data 20 is a modulation scheme with a change in amplitude, the power measurement section in each received data 20 is set to the control data section 21. Set and calculate the maximum amplitude based on the received power measured in the power measurement interval. Preferably, the power measurement section in the control data section is a preamble (PR) section (preamble section), and the power measurement is performed in the preamble section. Then, the control unit 162 passes the calculated maximum amplitude of each received data 20 to the gain control unit 163.

一方、制御部１６２は、各受信データ２０に係るユーザデータ区間２２の所定の変調方式が、振幅の変化を伴う変調方式ではない場合、各受信データ２０における電力測定区間をユーザデータ区間２２に設定し、当該電力測定区間で測定した受信電力に基づき、最大振幅を算出する。そして制御部１６２は、算出した各受信データ２０の最大振幅を、利得制御部１６３に渡す。   On the other hand, the control unit 162 sets the power measurement interval in each received data 20 as the user data interval 22 when the predetermined modulation method of the user data interval 22 related to each received data 20 is not a modulation method involving a change in amplitude. Then, the maximum amplitude is calculated based on the received power measured in the power measurement section. Then, the control unit 162 passes the calculated maximum amplitude of each received data 20 to the gain control unit 163.

利得制御部１６３は、各アナログ／デジタル変換部１３から受取った受信データ２０を、制御部１６２に渡す。また利得制御部１６３は、各受信データ２０の最大振幅を制御部１６２から受取る。利得制御部１６３は、制御部１６２から受取った各受信データ２０の最大振幅に基づき、各増幅部１２の次フレームで受信した受信データの増幅に係る利得を制御する。   The gain control unit 163 passes the received data 20 received from each analog / digital conversion unit 13 to the control unit 162. The gain control unit 163 receives the maximum amplitude of each received data 20 from the control unit 162. The gain control unit 163 controls the gain related to the amplification of the reception data received in the next frame of each amplification unit 12 based on the maximum amplitude of each reception data 20 received from the control unit 162.

次に、実施の形態１に係る受信装置１について、図３に示すフローチャートによりその動作を説明する。   Next, the operation of receiving apparatus 1 according to Embodiment 1 will be described with reference to the flowchart shown in FIG.

はじめに制御部１６２は、受信データ２０に係るユーザデータ区間２２の所定の変調方式が振幅の変化を伴う変調方式であるか否かを判定する（ステップＳ１１）。所定の変調方式が振幅の変化を伴う変調方式である場合、ステップＳ１２に進む。一方、所定の変調方式が振幅の変化を伴う変調方式でない場合、ステップＳ１３に進む。   First, the control unit 162 determines whether or not the predetermined modulation method of the user data section 22 related to the reception data 20 is a modulation method with a change in amplitude (step S11). If the predetermined modulation method is a modulation method with a change in amplitude, the process proceeds to step S12. On the other hand, if the predetermined modulation method is not a modulation method with a change in amplitude, the process proceeds to step S13.

制御部１６２は、各受信データ２０に係るユーザデータ区間２２の所定の変調方式が振幅の変化を伴う変調方式であると判定した場合、各受信データ２０における電力測定区間を制御データ区間２１に設定する（ステップＳ１２）。好適には制御データ区間における電力測定区間は、プリアンブル区間であり、電力測定はプリアンブル区間により行う。そしてステップＳ１４に進む。   When the control unit 162 determines that the predetermined modulation scheme of the user data section 22 related to each received data 20 is a modulation scheme with a change in amplitude, the power measurement section in each received data 20 is set to the control data section 21. (Step S12). Preferably, the power measurement section in the control data section is a preamble section, and the power measurement is performed in the preamble section. Then, the process proceeds to step S14.

一方ステップＳ１１において、制御部１６２が各受信データ２０に係るユーザデータ区間２２の所定の変調方式が振幅の変化を伴う変調方式でないと判定した場合、各受信データ２０における電力測定区間をユーザデータ区間２２に設定する（ステップＳ１３）。そしてステップＳ１４に進む。   On the other hand, when the control unit 162 determines in step S11 that the predetermined modulation scheme of the user data section 22 related to each received data 20 is not a modulation scheme with amplitude change, the power measurement section in each received data 20 is set as the user data section. Is set to 22 (step S13). Then, the process proceeds to step S14.

ステップＳ１２又はステップＳ１３に続いて制御部１６２は、電力測定区間で測定した受信電力に基づき、最大振幅を算出する（ステップＳ１４）。そして制御部１６２は、算出した各受信データ２０の最大振幅を、利得制御部１６３に渡す。   Subsequent to step S12 or step S13, the control unit 162 calculates the maximum amplitude based on the received power measured in the power measurement section (step S14). Then, the control unit 162 passes the calculated maximum amplitude of each received data 20 to the gain control unit 163.

続いて利得制御部１６３は、制御部１６２から受取った各受信データ２０の最大振幅に基づき、各増幅部１２の次フレームで受信した受信信号の増幅に係る利得を制御する（ステップＳ１５）。そして処理が終了する。   Subsequently, the gain control unit 163 controls the gain related to the amplification of the reception signal received in the next frame of each amplification unit 12 based on the maximum amplitude of each reception data 20 received from the control unit 162 (step S15). Then, the process ends.

このように本発明によれば、制御部１６２が受信データ２０の変調方式に応じて電力測定区間を設定して当該区間の受信電力に基づき最大振幅を算出し、利得制御部１６３が当該最大振幅に基づき利得制御するため、受信データの変調方式にかかわらず適応的に利得を制御することができる。   As described above, according to the present invention, the control unit 162 sets a power measurement interval according to the modulation scheme of the reception data 20, calculates the maximum amplitude based on the reception power in the interval, and the gain control unit 163 determines the maximum amplitude. Therefore, the gain can be adaptively controlled regardless of the modulation method of the received data.

なお図１では、受信装置１は受信アンテナ１１を複数備える構成を示したがこれに限られず、受信アンテナ１１を１つのみ備える構成であってもよい。この場合、増幅部１２、アナログ／デジタル変換部１３も１つのみとなる。またこの場合、アンテナ毎の重み付け及び合成が不要であるため、受信装置１は乗算部１４及び合成部１５を備えない。そのためアナログ／デジタル変換部１３は、受信データ２０を受信部１６の復調部１６１と、利得制御部１６３とに渡す。   In FIG. 1, the receiving apparatus 1 is configured to include a plurality of receiving antennas 11. However, the configuration is not limited thereto, and may be configured to include only one receiving antenna 11. In this case, only one amplification unit 12 and analog / digital conversion unit 13 are provided. In this case, since the weighting and combining for each antenna is unnecessary, the receiving apparatus 1 does not include the multiplying unit 14 and the combining unit 15. Therefore, the analog / digital conversion unit 13 passes the reception data 20 to the demodulation unit 161 and the gain control unit 163 of the reception unit 16.

（実施の形態２）
以下に、本発明の実施の形態２について説明をする。図４は、実施の形態２に係る受信装置１ｂのブロック図を示す。実施の形態１と同一の構成については同一の符号を付し、説明は省略する。実施の形態２に係る受信装置１ｂは、概略として、制御部１６２ｂ及び利得制御部１６３ｂがフェージングを考慮して利得を制御する点が実施の形態１と相違する。 (Embodiment 2)
The second embodiment of the present invention will be described below. FIG. 4 is a block diagram of the receiving device 1b according to the second embodiment. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted. The receiving apparatus 1b according to the second embodiment is generally different from the first embodiment in that the control unit 162b and the gain control unit 163b control the gain in consideration of fading.

実施の形態２に係る制御部１６２ｂは、受信データ２０のユーザデータ区間２２におけるフェージングの有無を判定する。そして制御部１６２ｂは、フェージングが生じていると判定した場合、制御データ区間２１における受信電力に基づき最大振幅を算出する。好適には制御部１６２ｂは、プリアンブル区間における受信電力をもとに、最大振幅を算出する。そして制御部１６２ｂは、制御データ区間２１から算出した最大振幅及びユーザデータ区間２２から算出した最大振幅により次フレームの予測電力を算出する。好適には制御部１６２ｂは、制御データ区間２１から算出した最大振幅とユーザデータ区間２２から算出した最大振幅とに基づく時間に対する振幅の増分により、次フレームの受信信号の予測電力を算出する。制御部１６２ｂは、算出した予測電力を利得制御部１６３ｂに渡す。そして利得制御部１６３ｂは、当該予測電力に基づき、各増幅部１２の利得を制御する。   The control unit 162b according to the second embodiment determines the presence or absence of fading in the user data section 22 of the reception data 20. When determining that fading has occurred, the control unit 162b calculates the maximum amplitude based on the received power in the control data section 21. Preferably, the control unit 162b calculates the maximum amplitude based on the received power in the preamble section. Then, the control unit 162b calculates the predicted power of the next frame based on the maximum amplitude calculated from the control data section 21 and the maximum amplitude calculated from the user data section 22. Preferably, the control unit 162b calculates the predicted power of the received signal of the next frame based on an increase in amplitude with respect to time based on the maximum amplitude calculated from the control data section 21 and the maximum amplitude calculated from the user data section 22. The control unit 162b passes the calculated predicted power to the gain control unit 163b. Then, the gain control unit 163b controls the gain of each amplification unit 12 based on the predicted power.

次に、実施の形態２に係る受信装置１ｂについて、図５に示すフローチャートによりその動作を説明する。実施の形態１に係る受信装置１と同一の動作については同一の符号を付し、説明は省略する。   Next, the operation of receiving apparatus 1b according to Embodiment 2 will be described with reference to the flowchart shown in FIG. The same operations as those of receiving apparatus 1 according to Embodiment 1 are denoted by the same reference numerals, and the description thereof is omitted.

ステップＳ１３において、制御部１６２ｂが各受信データ２０における電力測定区間をユーザデータ区間２２に設定した後、制御部１６２ｂは、電力測定区間、すなわちユーザデータ区間２２で測定した受信電力に基づき、最大振幅を算出する（ステップＳ２４）。そして制御部１６２は、算出した各受信データ２０の最大振幅を、利得制御部１６３に渡す。   In step S13, after the control unit 162b sets the power measurement interval in each received data 20 to the user data interval 22, the control unit 162b determines the maximum amplitude based on the power measurement interval, that is, the received power measured in the user data interval 22. Is calculated (step S24). Then, the control unit 162 passes the calculated maximum amplitude of each received data 20 to the gain control unit 163.

続いて制御部１６２ｂは、受信データ２０のユーザデータ区間２２におけるフェージングの有無を判定する（ステップＳ２５）。フェージングが生じていないと判定した場合、ステップＳ１５に移行し、利得制御部１６３ｂが、制御部１６２ｂから受け取った各受信データ２０の最大振幅に基づき、各増幅部１２の次フレームで受信した受信信号の増幅に係る利得を制御して、処理は終了する。   Subsequently, the control unit 162b determines whether or not fading has occurred in the user data section 22 of the received data 20 (step S25). If it is determined that fading has not occurred, the process proceeds to step S15, and the gain control unit 163b receives the received signal received in the next frame of each amplification unit 12 based on the maximum amplitude of each reception data 20 received from the control unit 162b. The gain is related to the amplification, and the process ends.

ステップＳ２５において制御部１６２ｂが、フェージングが生じていると判定した場合、制御部１６２ｂは、制御データ区間２１における受信電力に基づき最大振幅を算出する（ステップＳ２６）。好適には制御部１６２ｂは、プリアンブル区間における受信電力をもとに、最大振幅を算出する。そして制御部１６２ｂは、制御データ区間２１における受信電力から算出した最大振幅と、ユーザデータ区間２２から算出した最大振幅とに基づき、次フレーム受信信号の予測電力を算出する（ステップＳ２７）。制御部１６２ｂは、算出した予測電力を利得制御部１６３ｂに渡す。   When the control unit 162b determines in step S25 that fading has occurred, the control unit 162b calculates the maximum amplitude based on the received power in the control data section 21 (step S26). Preferably, the control unit 162b calculates the maximum amplitude based on the received power in the preamble section. Then, the control unit 162b calculates the predicted power of the next frame received signal based on the maximum amplitude calculated from the received power in the control data section 21 and the maximum amplitude calculated from the user data section 22 (step S27). The control unit 162b passes the calculated predicted power to the gain control unit 163b.

続いて利得制御部１６３ｂは、制御部１６２ｂから受取った予測電力に基づき、各増幅部１２の利得を制御する（ステップＳ２８）。   Subsequently, the gain control unit 163b controls the gain of each amplification unit 12 based on the predicted power received from the control unit 162b (step S28).

このように実施の形態２にかかる受信装置１ｂによれば、制御部１６２ｂがユーザデータ区間２２におけるフェージングの有無を判定し、フェージングが生じていると判定した場合にはフェージングの影響を考慮した次フレームの予測電力を算出し、利得制御部１６３ｂが利得を制御するため、受信データの変調方式及びフェージングの影響を考慮して適応的に利得を制御することができる。   As described above, according to the receiving device 1b according to the second embodiment, the control unit 162b determines the presence / absence of fading in the user data section 22, and when it is determined that fading has occurred, Since the predicted power of the frame is calculated and the gain controller 163b controls the gain, the gain can be adaptively controlled in consideration of the modulation scheme of received data and the influence of fading.

（実施の形態３）
以下に、本発明の実施の形態３について説明をする。図６は、実施の形態３に係る受信装置１ｃのブロック図を示す。実施の形態２と同一の構成については同一の符号を付し、説明は省略する。実施の形態３に係る受信装置１ｃは概略として、実施の形態２の構成に加えて、記憶部１７を備える点が実施の形態２と相違する。 (Embodiment 3)
The third embodiment of the present invention will be described below. FIG. 6 shows a block diagram of a receiving device 1c according to the third embodiment. The same components as those in the second embodiment are denoted by the same reference numerals and description thereof is omitted. Receiving device 1c according to the third embodiment is generally different from the second embodiment in that in addition to the configuration of the second embodiment, a storage unit 17 is provided.

記憶部１７は、直近のフレームで増幅処理を行った際の最大振幅を記憶する。制御部１６２ｃは、ユーザデータ区間２２におけるフェージングの有無を判定する。そして制御部１６２ｃは、フェージングが生じていると判定した場合、制御データ区間２１における受信電力に基づき最大振幅を算出する。好適には制御部１６２ｃは、プリアンブル区間における受信電力をもとに、最大振幅を算出する。また制御部１６２ｃは、直近のフレームで増幅処理を行った際の最大振幅を記憶部１７から読み出す。制御部１６２ｃは、記憶部１７に記憶された直近のフレームで増幅処理を行った際の最大振幅と、制御データ区間２１から算出した最大振幅と、ユーザデータ区間２２から算出した最大振幅に基づき次フレームの予測電力を算出する。制御部１６２ｃは、算出した予測電力を利得制御部１６３ｃに渡す。そして利得制御部１６３ｃは、当該予測電力に基づき、各増幅部１２の利得を制御する。   The storage unit 17 stores the maximum amplitude when the amplification process is performed on the latest frame. The control unit 162c determines whether or not fading occurs in the user data section 22. When determining that fading has occurred, the control unit 162c calculates the maximum amplitude based on the received power in the control data section 21. Preferably, the control unit 162c calculates the maximum amplitude based on the received power in the preamble section. Further, the control unit 162c reads out the maximum amplitude from the storage unit 17 when the amplification process is performed in the latest frame. Based on the maximum amplitude when the amplification process is performed on the latest frame stored in the storage unit 17, the maximum amplitude calculated from the control data section 21, and the maximum amplitude calculated from the user data section 22, the control unit 162 c Calculate the predicted power of the frame. The control unit 162c passes the calculated predicted power to the gain control unit 163c. Then, the gain control unit 163c controls the gain of each amplification unit 12 based on the predicted power.

次に、実施の形態３に係る受信装置１ｃについて、図７に示すフローチャートによりその動作を説明する。実施の形態２に係る受信装置１ｂと同一の動作については同一の符号を付し、説明は省略する。   Next, the operation of receiving apparatus 1c according to Embodiment 3 will be described with reference to the flowchart shown in FIG. The same operations as those of the receiving device 1b according to Embodiment 2 are denoted by the same reference numerals, and description thereof is omitted.

ステップＳ２６の後、制御部１６２ｃは、直近のフレームで増幅処理を行った際の最大振幅を記憶部１７から読み出す（ステップＳ３７）。   After step S26, the control unit 162c reads from the storage unit 17 the maximum amplitude when amplification processing is performed in the latest frame (step S37).

続いて制御部１６２ｃは、記憶部１７に記憶された直近のフレームで増幅処理を行った際の最大振幅と、制御データ区間２１から算出した最大振幅と、ユーザデータ区間２２から算出した最大振幅に基づき次フレームの予測電力を算出する（ステップＳ３８）。制御部１６２ｃは、算出した予測電力を利得制御部１６３ｃに渡す。   Subsequently, the control unit 162c sets the maximum amplitude when the amplification process is performed on the latest frame stored in the storage unit 17, the maximum amplitude calculated from the control data section 21, and the maximum amplitude calculated from the user data section 22. Based on this, the predicted power of the next frame is calculated (step S38). The control unit 162c passes the calculated predicted power to the gain control unit 163c.

続いて利得制御部１６３ｃは、制御部１６２ｃから受取った予測電力に基づき、各増幅部１２の利得を制御する（ステップＳ２８）。   Subsequently, the gain control unit 163c controls the gain of each amplification unit 12 based on the predicted power received from the control unit 162c (step S28).

このように実施の形態３にかかる受信装置１ｃによれば、制御部１６２ｃがユーザデータ区間２２におけるフェージングの有無を判定し、フェージングが生じていると判定した場合には、直近のフレームで増幅処理を行った際の最大振幅も考慮して次フレームの予測電力を算出し、利得制御部１６３ｂが利得を制御するため、受信データの変調方式及びフェージングの影響を考慮して適応的に利得を制御することができる。   As described above, according to the receiving device 1c according to the third embodiment, when the control unit 162c determines whether or not fading has occurred in the user data section 22, and determines that fading has occurred, amplification processing is performed on the latest frame. The predicted power of the next frame is calculated in consideration of the maximum amplitude at the time of performing, and the gain control unit 163b controls the gain. Therefore, the gain is adaptively controlled in consideration of the modulation scheme of received data and the influence of fading. can do.

なお、記憶部１７には、直近のフレームで増幅処理を行った際の最大振幅を記憶する例を示したがこれに限られない。記憶部１７には、直近の複数のフレームで増幅処理を行った際の複数の最大振幅を記憶してもよい。この場合、制御部１６２ｃは、記憶部１７に記憶された当該複数の最大振幅と、制御データ区間２１から算出した最大振幅と、ユーザデータ区間２２から算出した最大振幅に基づき次フレームの予測電力を算出する。   In addition, although the example which memorize | stores the maximum amplitude at the time of performing an amplification process in the latest flame | frame was shown in the memory | storage part 17, it is not restricted to this. The storage unit 17 may store a plurality of maximum amplitudes when amplification processing is performed on a plurality of latest frames. In this case, the control unit 162c calculates the predicted power of the next frame based on the plurality of maximum amplitudes stored in the storage unit 17, the maximum amplitude calculated from the control data section 21, and the maximum amplitude calculated from the user data section 22. calculate.

本発明を諸図面や実施例に基づき説明してきたが、当業者であれば本開示に基づき種々の変形や修正を行うことが容易であることに注意されたい。従って、これらの変形や修正は本発明の範囲に含まれることに留意されたい。例えば、各手段、各ステップ等に含まれる機能等は論理的に矛盾しないように再配置可能であり、複数の手段やステップ等を１つに組み合わせたり、或いは分割したりすることが可能である。   Although the present invention has been described based on the drawings and examples, it should be noted that those skilled in the art can easily make various modifications and corrections based on the present disclosure. Therefore, it should be noted that these variations and modifications are included in the scope of the present invention. For example, the functions included in each means, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of means, steps, etc. can be combined or divided into one. .

１ 受信装置
１１ 受信アンテナ
１２ 増幅部（ＡＭＰ）
１３ アナログ／デジタル変換部（Ａ／Ｄ）
１４ 乗算部
１５ 合成部
１６ 受信部
１７ 記憶部
２０ 受信データ
２１ 制御データ区間
２２ ユーザデータ区間
１６１ 復調部
１６２ 制御部
１６３ 利得制御部
１ｂ 受信装置
１６２ｂ 制御部
１６３ｂ 利得制御部
１ｃ 受信装置
１６２ｃ 制御部
１６３ｃ 利得制御部 1 Receiving Device 11 Receiving Antenna 12 Amplifier (AMP)
13 Analog / Digital converter (A / D)
14 multiplication unit 15 synthesis unit 16 reception unit 17 storage unit 20 reception data 21 control data period 22 user data period 161 demodulation unit 162 control unit 163 gain control unit 1b reception device 162b control unit 163b gain control unit 1c reception device 162c control unit 163c Gain controller

Claims (10)

振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信装置であって、
前記所定の変調方式が、振幅の変化を伴う変調方式である場合、前記受信データにおける電力測定区間を前記制御データ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出する制御部と、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御する利得制御部と、
を備える受信装置。 A receiving apparatus that receives received data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is a modulation method with a change in amplitude, the power measurement interval in the received data is set as the control data interval, and the maximum amplitude is calculated based on the received power measured in the power measurement interval A control unit,
Based on the maximum amplitude, a gain control unit that controls the gain of the amplification unit that performs amplification processing of the received signal received in the next frame;
A receiving device. 振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信装置であって、
前記所定の変調方式が、振幅の変化を伴う変調方式ではない場合、前記受信データにおける電力測定区間を前記ユーザデータ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出する制御部と、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御する利得制御部と、
を備える受信装置。 A receiving apparatus that receives received data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is not a modulation method with amplitude change, the power measurement section in the received data is set as the user data section, and the maximum amplitude is calculated based on the received power measured in the power measurement section A control unit,
Based on the maximum amplitude, a gain control unit that controls the gain of the amplification unit that performs amplification processing of the received signal received in the next frame;
A receiving device. 前記制御部はさらに、ユーザデータ区間におけるフェージングの有無を検出し、フェージングが生じている場合、前記制御データ区間における受信電力に基づき最大振幅を算出し、前記制御データ区間から算出した最大振幅及び前記ユーザデータ区間から算出した最大振幅に基づき予測電力を算出し、
前記利得制御部は、前記予測電力に基づき前記増幅部の利得を制御する、請求項２に記載の受信装置。 The control unit further detects the presence or absence of fading in the user data section, and when fading occurs, calculates the maximum amplitude based on the received power in the control data section, the maximum amplitude calculated from the control data section and the Calculate the predicted power based on the maximum amplitude calculated from the user data section,
The receiving apparatus according to claim 2, wherein the gain control unit controls the gain of the amplification unit based on the predicted power. 前記受信装置はさらに直近のフレームで増幅処理を行った際の最大振幅を記憶する記憶部を備え、
前記制御データ区間から算出した最大振幅と、前記制御部は前記ユーザデータ区間から算出した最大振幅と、前記記憶部に記憶された前記直近のフレームで増幅処理を行った際の最大振幅とに基づき予測電力を算出することを特徴とする、請求項３に記載の受信装置。 The receiving device further includes a storage unit that stores the maximum amplitude when the amplification process is performed on the latest frame,
Based on the maximum amplitude calculated from the control data section, the maximum amplitude calculated by the control unit from the user data section, and the maximum amplitude when amplification processing is performed on the latest frame stored in the storage unit The receiving apparatus according to claim 3, wherein predicted power is calculated. 前記制御データ区間における電力測定は、該制御データ区間のプリアンブル区間において行うことを特徴とする、請求項１、３又は４のいずれか一項に記載の受信装置。   5. The receiving apparatus according to claim 1, wherein power measurement in the control data section is performed in a preamble section of the control data section. 振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信方法であって、
前記所定の変調方式が、振幅の変化を伴う変調方式である場合、前記受信データにおける電力測定区間を前記制御データ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出するステップと、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御するステップと、
を含む受信方法。 A reception method for receiving reception data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is a modulation method with a change in amplitude, the power measurement interval in the received data is set as the control data interval, and the maximum amplitude is calculated based on the received power measured in the power measurement interval And steps to
Based on the maximum amplitude, controlling the gain of the amplification unit that performs the amplification process of the received signal received in the next frame;
Including receiving method. 振幅の変化を伴わない変調方式で変調された制御データ区間と、所定の変調方式で変調されたユーザデータ区間とを含む受信データを受信する受信方法であって、
前記所定の変調方式が、振幅の変化を伴う変調方式ではない場合、前記受信データにおける電力測定区間を前記ユーザデータ区間に設定し、該電力測定区間で測定した受信電力に基づき、最大振幅を算出するステップと、
前記最大振幅に基づき、次フレームで受信した受信信号の増幅処理をする増幅部の利得を制御するステップと、
を含む受信方法。 A reception method for receiving reception data including a control data section modulated by a modulation scheme without a change in amplitude and a user data section modulated by a predetermined modulation scheme,
When the predetermined modulation method is not a modulation method with amplitude change, the power measurement section in the received data is set as the user data section, and the maximum amplitude is calculated based on the received power measured in the power measurement section And steps to
Based on the maximum amplitude, controlling the gain of the amplification unit that performs the amplification process of the received signal received in the next frame;
Including receiving method. 前記受信方法はさらに、ユーザデータ区間におけるフェージングの有無を検出するステップと、
フェージングが生じている場合、前記制御データ区間における受信電力に基づき最大振幅を算出し、前記制御データ区間から算出した最大振幅及び前記ユーザデータ区間から算出した最大振幅に基づき予測電力を算出するステップと、
前記利得を制御するステップは、前記予測電力に基づき前記増幅部の利得を制御することを特徴とする、請求項７に記載の受信方法。 The receiving method further comprises detecting the presence or absence of fading in the user data section;
If fading has occurred, calculating a maximum amplitude based on the received power in the control data interval, and calculating a predicted power based on the maximum amplitude calculated from the control data interval and the maximum amplitude calculated from the user data interval; ,
The receiving method according to claim 7, wherein the step of controlling the gain controls the gain of the amplification unit based on the predicted power. 前記受信方法はさらに直近のフレームで増幅処理を行った際の最大振幅を記憶するステップを含み、
前記予測電力を算出するステップは、前記制御データ区間から算出した最大振幅と、前記制御部は前記ユーザデータ区間から算出した最大振幅と、前記記憶ステップで記憶された前記直近のフレームで増幅処理を行った際の最大振幅とに基づき予測電力を算出することを特徴とする、請求項８に記載の受信方法。 The reception method further includes the step of storing the maximum amplitude when the amplification process is performed on the latest frame,
The step of calculating the predicted power includes the maximum amplitude calculated from the control data interval, the control unit performs an amplification process on the maximum amplitude calculated from the user data interval, and the latest frame stored in the storage step. The reception method according to claim 8, wherein the predicted power is calculated based on the maximum amplitude when performed. 前記制御データ区間における電力測定は、該制御データ区間のプリアンブル区間において行うことを特徴とする、請求項６、８又は９のいずれか一項に記載の受信方法。   10. The reception method according to claim 6, wherein power measurement in the control data section is performed in a preamble section of the control data section.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003142969A (en) * 2001-11-02 2003-05-16 Matsushita Electric Ind Co Ltd Receiver
JP2007067583A (en) * 2005-08-29 2007-03-15 Kyocera Corp Radio communication system, radio communication apparatus, amplification rate determining method and program
JP2009081701A (en) * 2007-09-26 2009-04-16 Kyocera Corp Reception control method and receiver

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003142969A (en) * 2001-11-02 2003-05-16 Matsushita Electric Ind Co Ltd Receiver
JP2007067583A (en) * 2005-08-29 2007-03-15 Kyocera Corp Radio communication system, radio communication apparatus, amplification rate determining method and program
JP2009081701A (en) * 2007-09-26 2009-04-16 Kyocera Corp Reception control method and receiver

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