JP6879679B2 - キャリアアグリゲーションシステム、キャリアアグリゲーションを用いる電力増幅器システム、キャリアアグリゲーション回路、キャリアアグリゲート信号の個別のキャリアと関連付けられる電力を検出する方法、電力増幅器モジュール、およびモバイルワイヤレス通信装置 - Google Patents
キャリアアグリゲーションシステム、キャリアアグリゲーションを用いる電力増幅器システム、キャリアアグリゲーション回路、キャリアアグリゲート信号の個別のキャリアと関連付けられる電力を検出する方法、電力増幅器モジュール、およびモバイルワイヤレス通信装置 Download PDFInfo
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- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/0057—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using diplexing or multiplexing filters for selecting the desired band
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- H04B1/0053—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band
- H04B1/006—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges with common antenna for more than one band using switches for selecting the desired band
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Transmitters (AREA)
- Amplifiers (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Description
本願は、2016年6月26日に出願された、「アグリゲートされるキャリアの個別のキャリアの電力検出(POWER DETECTION OF INDIVIDUAL CARRIER OF AGGREGATED CARRIER)」と題された米国仮特許出願番号第62/185,507号の米国特許法第119条(e)に基づく優先権の利益を主張し、上記仮出願の開示はその全体が引用により本明細書に援用される。
技術分野
本開示は電子システムに関し、特に無線周波数(RF)回路に関する。
ロングタームエボリューション(LTE)用のアップリンクチャネルにおけるシステムの中には、単一のアップリンクキャリアを用いるものがある。アップリンクチャネルは、ハンドセットから基地局までであり得る。キャリアは、入力信号で変調されて情報を送信する信号であり得る。キャリアは典型的に、周波数が入力信号よりもはるかに高い。キャリアは無線周波数信号であり得る。単一のアップリンクキャリアを用いるLTEシステムでは、電力制御は典型的に、1つ以上の方向性結合器および1つ以上の関連付けられる電力検出器を用いて維持される。そのようなシステムでは、典型的に、多重送信の電力を制御する必要はない。
請求項に記載されるイノベーションの各々はいくつかの局面を有し、当該局面のいずれもその望ましい属性について単独で原因となることはない。請求項の範囲を限定することなく、本開示のいくつかの顕著な特徴が以下に簡潔に記載される。
ある実施形態の以下の詳細な説明は、具体的な実施形態のさまざまな説明を提示する。しかし、本明細書中に記載されるイノベーションは、たとえば、請求項によって規定および包含されるような多数の異なる方法で実施可能である。この説明では、同様の参照番号および/または記号は同一のまたは機能的に同様の要素を示し得る図面を参照する。図面に示される要素は必ずしも一定の縮尺で描かれているとは限らないことが理解されるであろう。さらに、ある実施形態は、図面に示されるよりも多い要素、および/または図面に示される要素のサブセットを含んでもよいことが理解されるであろう。さらに、いくつかの実施形態は、2つ以上の図面からの特徴の任意の好適な組合せを組込んでもよい。
Claims (19)
- キャリアアグリゲーションシステムであって、
各々が別個のキャリアと関連付けられた無線周波数源と、
周波数領域多重化を行なうように構成された周波数多重化回路とを備え、前記周波数多重化回路はキャリアアグリゲート信号を提供するように構成された端子を含み、前記キャリアアグリゲート信号は前記無線周波数源と関連付けられた前記別個のキャリアのアグリゲーションを含み、前記周波数多重化回路はダイプレクサまたはトリプレクサであり、前記キャリアアグリゲート信号は、時分割二重化キャリアアグリゲート信号であり、前記キャリアアグリゲーションシステムはさらに、
方向性結合器を備え、前記方向性結合器は、前記周波数多重化回路が前記無線周波数源と前記方向性結合器との間の信号経路内にあるように配置され、
前記方向性結合器は、前記別個のキャリアのうちの1つのキャリアの無線周波数電力の表示を提供するように構成される、キャリアアグリゲーションシステム。 - 前記キャリアアグリゲート信号は、アドバンスト・ロングタームエボリューション規格に従う、請求項1に記載のキャリアアグリゲーションシステム。
- 前記無線周波数源は電力増幅器を含む、請求項1に記載のキャリアアグリゲーションシステム。
- 前記周波数多重化回路と前記方向性結合器との間に結合されたアンテナスイッチをさらに備える、請求項1に記載のキャリアアグリゲーションシステム。
- 前記方向性結合器とアンテナポートとの間に結合されたアンテナスイッチをさらに備える、請求項1に記載のキャリアアグリゲーションシステム。
- 前記方向性結合器の出力を周波数多重化して、前記別個のキャリアのうちの第1のキャリアの電力の表示を第1の電力検出器に提供し、前記別個のキャリアのうちの第2のキャリアの電力の表示を第2の電力検出器に提供するように配置されたダイプレクサをさらに備える、請求項1に記載のキャリアアグリゲーションシステム。
- 前記方向性結合器に結合された電力検出器をさらに備える、請求項1に記載のキャリアアグリゲーションシステム。
- キャリアアグリゲーションシステムであって、
各々が別個のキャリアと関連付けられた無線周波数源と、
周波数領域多重化を行なうように構成された周波数多重化回路とを備え、前記周波数多重化回路はキャリアアグリゲート信号を提供するように構成された端子を含み、前記キャリアアグリゲート信号は前記無線周波数源と関連付けられた前記別個のキャリアのアグリゲーションを含み、前記キャリアアグリゲーションシステムはさらに、
前記別個のキャリアのうちの第1の個別のキャリアの無線周波数電力の表示を提供するように構成された方向性結合器と、
前記無線周波数電力の表示を前記方向性結合器から電力検出器に選択的に提供するように構成されたマルチスロースイッチとを備える、キャリアアグリゲーションシステム。 - キャリアアグリゲーションを用いる電力増幅器システムであって、前記電力増幅器システムは、
第1のキャリアと関連付けられた第1の電力増幅器および第2のキャリアと関連付けられた第2の電力増幅器を少なくとも含む電力増幅器を備え、前記第1のキャリアおよび前記第2のキャリアは無線周波数信号であり、前記電力増幅器システムはさらに、
周波数領域多重化を行なうように構成された周波数多重化回路を備え、前記周波数多重化回路は、少なくとも前記第1のキャリアおよび前記第2のキャリアのアグリゲーションを含むキャリアアグリゲート信号を提供するように構成された端子を含み、前記電力増幅器システムはさらに、
前記第1の電力増幅器と前記周波数多重化回路との間に結合されたバンドパスフィルタと、
前記第1の電力増幅器と前記バンドパスフィルタとの間の信号経路内にある方向性結合器とを備え、前記方向性結合器はアグリゲートされた前記キャリアの個別のキャリアの電力の表示を提供するように構成され、前記個別のキャリアは前記第1のキャリアまたは前記第2のキャリアの一方である、電力増幅器システム。 - 前記方向性結合器と前記バンドパスフィルタとの間に結合された帯域選択スイッチをさらに備える、請求項9に記載の電力増幅器システム。
- 前記第2の電力増幅器と関連付けられた第2の方向性結合器をさらに備え、前記周波数多重化回路は、前記方向性結合器および前記第2の方向性結合器に結合された異なる端子を有する、請求項9に記載の電力増幅器システム。
- 前記電力増幅器システムはアップリンクチャネル通信用に構成される、請求項9に記載の電力増幅器システム。
- 前記バンドパスフィルタはデュプレクサの送信フィルタである、請求項9に記載の電力増幅器システム。
- 前記方向性結合器と前記バンドパスフィルタとの間に結合された無線周波数スイッチをさらに備える、請求項9に記載の電力増幅器システム。
- 前記方向性結合器に結合された電力検出器をさらに備える、請求項9に記載の電力増幅器システム。
- 前記別個のキャリアのうちの第2の個別のキャリアの無線周波数電力の表示を提供するように構成された第2の方向性結合器をさらに備え、前記マルチスロースイッチは、前記第2の方向性結合器の出力を前記電力検出器に選択的に電気的に接続するように構成される、請求項8に記載のキャリアアグリゲーションシステム。
- 前記方向性結合器および前記第2の方向性結合器は、異なる周波数帯域におけるパフォーマンスを高めるように構成される、請求項16に記載のキャリアアグリゲーションシステム。
- 無線周波数スイッチをさらに備え、前記方向性結合器は前記無線周波数スイッチと前記周波数多重化回路との間に結合される、請求項8に記載のキャリアアグリゲーションシステム。
- デュプレクサをさらに備え、前記方向性結合器は前記デュプレクサと前記周波数多重化回路との間に結合される、請求項8に記載のキャリアアグリゲーションシステム。
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