JP7114779B2 - 調整可能な帯域外干渉緩和システムおよび方法 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—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
- H04B1/005—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
- 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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—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
- H04B1/005—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
- H04B1/0067—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 one or more circuit blocks in common for different bands
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—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
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
- H04B1/50—Circuits using different frequencies for the two directions of communication
- H04B1/52—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
- H04B1/525—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa with means for reducing leakage of transmitter signal into the receiver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—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
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Description
[0001]この出願は、2017年3月27日に出願された米国仮出願番号62/477,341、2017年4月27日に出願された米国仮出願番号62/490,932、および2017年10月12日に出願された米国仮出願番号62/571,595の利益を主張するものであり、これらはすべて、この参照によりその全体が組み込まれる。
[0002]本発明は、一般に無線通信分野に関し、より具体的には調整可能な帯域外干渉を軽減するための新規かつ有用なシステムおよび方法に関する。
[0022]調整可能な帯域外干渉緩和システム1000は、送信帯域干渉キャンセルシステム(TxICS)1100、送信帯域ノイズキャンセルシステム(TxNCS)1200、受信帯域干渉キャンセルシステム(RxICS)1300、および受信帯域ノイズキャンセルシステム(RxNCS)1400のうちの1以上を含む。システム1000はさらに、信号カプラ1010、増幅器1020、周波数アップコンバータ1030、周波数ダウンコンバータ1040、アナログ-デジタル変換器(ADC)1050、デジタル-アナログコンバータ(DAC)1060、時間遅延1070、フィルタ1080、およびその他の回路要素(位相シフタ、減衰器、トランスなど)を含む、干渉キャンセルおよび/またはフィルタリングを実現する任意数の追加要素を含み得る。
[00110]リレーおよび共同設置トランシーバ用の調整可能な帯域外干渉緩和システム2000は、干渉キャンセルシステム(ICS)2100と、ノイズキャンセルシステム(NCS)2200との少なくとも1つを備える。システム2000は、信号カプラ2010、増幅器2020、周波数アップコンバータ2030、周波数ダウンコンバータ2040、アナログデジタル変換器(ADC)2050、デジタル-アナログコンバータ(DAC)2060、時間遅延2070、フィルタ2080、およびその他の回路コンポーネント(位相シフタ、減衰器、変圧器など)を含む、干渉キャンセルおよび/またはフィルタリングを可能にする任意の数の追加要素をさらに含むことができる。
Claims (20)
- 干渉を緩和するためのシステムにおいて、当該システムが第1の信号および第2の信号に関連しており、当該システムが:
受信帯域の外側にある信号を抑制するように構成された受信バンドパスフィルタと;
送信帯域の外側にある信号を抑制するように構成された送信バンドパスフィルタと;
前記受信バンドパスフィルタと送信バンドパスフィルタの間に通信可能に接続された送信帯域干渉キャンセルシステム(TxICS)と;
前記受信バンドパスフィルタと送信バンドパスフィルタの間に前記TxICSと並行に接続された受信帯域干渉キャンセルシステム(RxICS)と;
通信システムのアンテナに通信可能に接続されたデュプレクサと;
前記デュプレクサと、前記受信バンドパスフィルタと、前記通信システムの送信機との間に通信可能に接続された第1の信号カプラであって、
前記デュプレクサが、前記第1の信号カプラと前記アンテナとの間に通信可能に接続されており、
前記受信バンドパスフィルタが、前記第1の信号カプラと前記TxICSとの間に通信可能に接続されており、
前記受信バンドパスフィルタが、前記第1の信号カプラと前記RxICSとの間に通信可能に接続されている、第1の信号カプラと;
前記デュプレクサと、前記送信バンドパスフィルタと、前記通信システムの受信機との間に通信可能に接続された第2の信号カプラであって、
前記デュプレクサが、前記第2の信号カプラと前記アンテナとの間に通信可能に接続されており、
前記送信バンドパスフィルタが、前記第2の信号カプラと前記TxICSとの間に通信可能に接続されており、
前記送信バンドパスフィルタが、前記第2の信号カプラと前記RxICSとの間に通信可能に接続されている、第2の信号カプラと;を具えることを特徴とするシステム。 - 請求項1に記載のシステムにおいて、前記TxICSが、
前記第1の信号をサンプリングすることにより、TxICS信号サンプルを生成し、
前記TxICS信号サンプルを、前記第2の信号内の自己干渉の存在のTxICS表示に変換することにより、TxICS干渉キャンセル信号を生成し、
前記第2の信号から前記TxICS干渉キャンセル信号を減算する、ように構成されていることを特徴とするシステム。 - 請求項2に記載のシステムにおいて、
前記第1の信号が前記送信機の送信信号であり、
前記第2の信号が前記受信機の受信信号である、ことを特徴とするシステム。 - 請求項3に記載のシステムにおいて、前記受信信号内の自己干渉の存在のTxICS表示が、受信機によって受信された前記送信帯域内にある前記送信信号の表示を含んでいることを特徴とするシステム。
- 請求項3または4に記載のシステムにおいて、前記TxICSが、
送信機により生成された前記送信帯域内にある送信信号の表示をモデル化することにより、第2の干渉キャンセル信号を生成し、
信号サンプルから前記第2の干渉キャンセル信号を減算するように構成されていることを特徴とするシステム。 - 請求項1乃至5のいずれか1項に記載のシステムにおいて、前記第2の信号カプラが整合回路を具えることを特徴とするシステム。
- 請求項6に記載のシステムにおいて、前記整合回路が、前記受信機と、前記TxICSおよびRxICSの少なくとも一方との間のインピーダンス整合を実行するように構成されていることを特徴とするシステム。
- 請求項6または7に記載のシステムにおいて、前記整合回路が、前記受信機と、前記TxICSおよびRxICSの少なくとも一方との間の遅延整合を実行するように構成されていることを特徴とするシステム。
- 干渉を緩和するためのシステムにおいて:
通信システムのアナログ送信信号に通信可能に接続された送信カプラであって、前記通信システムが、前記アナログ送信信号を送信パスおよび干渉キャンセルパスに接続し、前記通信システムが送信帯域および受信帯域に関連している送信カプラと;
前記通信システムのアナログ受信信号に通信可能に接続された受信カプラであって、前記通信システムが、前記アナログ受信信号を受信パスおよび前記干渉キャンセルパスに接続する受信カプラと;
前記送信パスおよび受信パスを前記通信システムのアンテナに通信可能に接続するデュプレクサと;
前記干渉キャンセルパスに沿って前記送信カプラと受信カプラとの間に配置された干渉キャンセルモジュールであって、当該干渉キャンセルモジュールが:
前記干渉キャンセルパスに沿って前記送信カプラの近くに配置された受信帯域フィルタであって、前記干渉キャンセルパス上の信号をフィルタリングして前記受信帯域の外にある信号パワーを低減させる受信帯域フィルタと;
前記干渉キャンセルパスに沿って前記受信カプラの近くに配置された送信帯域フィルタであって、前記干渉キャンセルパス上の信号をフィルタリングして前記送信帯域の外にある信号パワーを低減させる送信帯域フィルタと;
前記受信帯域フィルタと送信帯域フィルタとの間に配置された干渉キャンセルシステムであって、当該干渉キャンセルシステムが、前記干渉キャンセルパスからの信号をサンプリングし、サンプリングされた信号に基づいて干渉キャンセル信号を生成し、当該干渉キャンセル信号を前記干渉キャンセルパスに出力する、干渉キャンセルシステムと;を含む干渉キャンセルモジュールと;
を具えることを特徴とするシステム。 - 請求項9に記載のシステムにおいて、前記干渉キャンセルシステムが前記送信帯域フィルタから前記信号を受信し、前記システムが、前記干渉キャンセル信号と前記アナログ受信信号とを結合することを特徴とするシステム。
- 請求項10に記載のシステムにおいて、前記干渉キャンセルシステムが、前記サンプリングされた信号の送信帯域に基づいて前記干渉キャンセル信号を生成することを特徴とするシステム。
- 請求項10に記載のシステムが、さらに、前記アナログ受信信号を前記干渉キャンセル信号に対して遅延させる時間遅延回路を具えており、前記干渉キャンセル信号の生成時に導入される遅延を補償することを特徴とするシステム。
- 請求項10に記載のシステムが、さらに、前記受信帯域フィルタと送信帯域フィルタとの間に配置された第2の干渉キャンセルシステムを具え、前記第2の干渉キャンセルシステムが、前記受信帯域フィルタから第2の信号をサンプリングし、サンプリングされた第2の信号に基づいて第2の干渉キャンセル信号を生成し、前記干渉キャンセルパスに前記第2の干渉キャンセル信号を出力し、前記システムが前記第2の干渉キャンセル信号を前記アナログ送信信号と結合することを特徴とするシステム。
- 請求項10に記載のシステムが、さらに、前記干渉キャンセル信号と前記アナログ受信信号との間のインピーダンス整合を実行する整合回路を具えることを特徴とするシステム。
- 請求項10に記載のシステムが、さらに第2の干渉キャンセルシステムを具え、前記第2の干渉キャンセルシステムが、前記アナログ送信信号の送信帯域部分をサンプリングし、前記送信帯域の部分に基づいて第2の干渉キャンセル信号を生成し、前記第2の干渉キャンセル信号を前記アナログ送信信号と結合することを特徴とするシステム。
- 請求項15に記載のシステムが、さらに、前記第2の干渉キャンセル信号と前記アナログ送信信号との間のインピーダンス整合を実行する整合回路を具えることを特徴とするシステム。
- 請求項9に記載のシステムにおいて、前記干渉キャンセルシステムが前記受信帯域フィルタから信号を受信し、前記システムが、前記干渉キャンセル信号を前記アナログ送信信号と結合することを特徴とするシステム。
- 請求項17に記載のシステムにおいて、前記干渉キャンセルシステムが、前記サンプル信号の受信帯域に基づいて、前記干渉キャンセル信号を生成することを特徴とするシステム。
- 請求項17に記載のシステムが、さらに、前記干渉キャンセル信号と前記アナログ送信信号との間のインピーダンス整合を実行する整合回路を具えることを特徴とするシステム。
- 請求項17に記載のシステムが、さらに、前記アナログ送信信号を前記干渉キャンセル信号に対して遅延させる時間遅延回路を具えており、前記干渉キャンセル信号の生成時に導入される遅延を補償することを特徴とするシステム
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US201762477341P | 2017-03-27 | 2017-03-27 | |
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US62/490,932 | 2017-04-27 | ||
US201762571595P | 2017-10-12 | 2017-10-12 | |
US62/571,595 | 2017-10-12 | ||
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