JP7186681B2 - 送信装置 - Google Patents
送信装置 Download PDFInfo
- Publication number
- JP7186681B2 JP7186681B2 JP2019160570A JP2019160570A JP7186681B2 JP 7186681 B2 JP7186681 B2 JP 7186681B2 JP 2019160570 A JP2019160570 A JP 2019160570A JP 2019160570 A JP2019160570 A JP 2019160570A JP 7186681 B2 JP7186681 B2 JP 7186681B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- switching
- signal
- power amplifier
- outputs
- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a power saving command
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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
- H04B1/02—Transmitters
- H04B1/04—Circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
-
- 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
- H04B1/02—Transmitters
- H04B1/04—Circuits
- H04B2001/0408—Circuits with power amplifiers
-
- 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
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transmitters (AREA)
Description
まず、図1に基づき、第1の実施形態に係る送信装置の構成を説明する。
図1は、第1の実施形態に係る送信装置の一例を示すブロック図である。
パケットPは、4usのGuard period、8usのReference periodを有して構成されている。その後、アンテナの切り替えと送信信号Txの送信が交互に構成されている。具体的には、パケットは、Reference periodの後に、それぞれ1usまたは2usのSW slot A1、Tx slot B1、SW slot A2、Tx slot B2、・・・、SW slot An、Tx slot Bnを有して構成されている。
次に、第2の実施形態について説明する。
図5は、第2の実施形態に係る送信装置の一例を示すブロック図である。なお、図5において、図1と同様に構成については同一の符号を付して説明を省略する。
Claims (2)
- 送信信号を増幅して出力するパワーアンプと、
少なくとも2つ以上のアンテナのうち、前記パワーアンプからの送信信号を出力するアンテナを切り替えるアンテナスイッチと、
前記アンテナスイッチに前記アンテナを切り替えるための切替制御信号を出力した際に、前記パワーアンプの出力パワー制御を行う制御回路と、
を有し、
前記制御回路は、前記アンテナの切り替えを、所定の切替期間の中央で行うように、前記切替制御信号を前記アンテナスイッチに出力し、前記所定の切替期間の内、前記アンテナの切り替えを行うまで、前記パワーアンプの出力をパワーダウンさせ、前記アンテナの切り替えを行った後、前記パワーアンプの出力をパワーアップさせる
ことを特徴とする送信装置。 - 送信データから搬送波の同相成分の第1信号及び直交成分の第2信号を生成し、少なくとも2つ以上のアンテナのうち、いずれかのアンテナに切り替えるための切替制御信号を出力した際に、前記第1信号及び前記第2信号の振幅制御を行う制御回路と、
前記切替制御信号に基づき、前記送信データを出力するアンテナに切り替えるアンテナスイッチと、
変調回路と、
を有し、
前記制御回路は、前記アンテナの切り替えを、所定の切替期間の中央で行うように、前記切替制御信号を前記アンテナスイッチに出力し、
前記変調回路は、前記所定の切替期間の内、前記アンテナの切り替えを行うまで、前記第1信号及び前記第2信号の振幅を小さくし、前記アンテナの切り替えを行った後、前記第1信号及び前記第2信号の振幅を大きくする
ことを特徴とする送信装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019160570A JP7186681B2 (ja) | 2019-09-03 | 2019-09-03 | 送信装置 |
US16/802,333 US11191022B2 (en) | 2019-09-03 | 2020-02-26 | Transmission apparatus |
US17/509,870 US11785548B2 (en) | 2019-09-03 | 2021-10-25 | Transmission apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019160570A JP7186681B2 (ja) | 2019-09-03 | 2019-09-03 | 送信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021040247A JP2021040247A (ja) | 2021-03-11 |
JP7186681B2 true JP7186681B2 (ja) | 2022-12-09 |
Family
ID=74680279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019160570A Active JP7186681B2 (ja) | 2019-09-03 | 2019-09-03 | 送信装置 |
Country Status (2)
Country | Link |
---|---|
US (2) | US11191022B2 (ja) |
JP (1) | JP7186681B2 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000013248A (ja) | 1998-06-25 | 2000-01-14 | Mitsubishi Electric Corp | 送信出力制御装置 |
JP2001332986A (ja) | 2000-05-24 | 2001-11-30 | Matsushita Electric Ind Co Ltd | 送信出力制御方法及び基地局装置並びに送信出力調整方法及び装置 |
CN1378400A (zh) | 2001-03-23 | 2002-11-06 | 株式会社东芝 | 无线通信装置和发送功率控制装置 |
US20100151898A1 (en) | 2008-12-11 | 2010-06-17 | Electronics And Telecommunications Research Institute | Transmitter/receiver for wireless communication system |
JP2015192414A (ja) | 2014-03-28 | 2015-11-02 | 富士通株式会社 | 携帯端末装置およびアンテナ切り替え方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04274625A (ja) | 1991-03-01 | 1992-09-30 | Toshiba Corp | ダイバーシチアンテナ装置 |
JP2863993B2 (ja) | 1995-06-22 | 1999-03-03 | 松下電器産業株式会社 | Cdma無線多重送信装置およびcdma無線多重伝送装置およびcdma無線受信装置およびcdma無線多重送信方法 |
JPH09275351A (ja) * | 1996-04-08 | 1997-10-21 | Matsushita Electric Ind Co Ltd | 複数モード移動無線機 |
US6216012B1 (en) * | 1997-11-07 | 2001-04-10 | Conexant Systems, Inc. | Dualband power amplifier control using a single power amplifier controller |
US6397077B1 (en) * | 1998-05-20 | 2002-05-28 | Conexant Systems, Inc. | Wide frequency range couplers and detectors for power detection in multiple frequency band systems |
US6466165B2 (en) | 2000-06-16 | 2002-10-15 | Kabushiki Kaisha Toshiba | Adaptive array antenna |
JP3719954B2 (ja) | 2000-06-16 | 2005-11-24 | 株式会社東芝 | アダプティブアレイアンテナ、その送信方法、及び送信機 |
US7529526B2 (en) * | 2004-04-08 | 2009-05-05 | Christopher Brindle | Apparatus and method for detecting radio frequency transmission power levels |
US7683842B1 (en) * | 2007-05-30 | 2010-03-23 | Advanced Testing Technologies, Inc. | Distributed built-in test and performance monitoring system for electronic surveillance |
JP4866456B2 (ja) * | 2009-09-15 | 2012-02-01 | 東芝テック株式会社 | Rfタグリーダライタ |
JP5467979B2 (ja) * | 2010-09-14 | 2014-04-09 | ルネサスエレクトロニクス株式会社 | 高周波モジュール |
US9444540B2 (en) * | 2011-12-08 | 2016-09-13 | Apple Inc. | System and methods for performing antenna transmit diversity |
US8873662B2 (en) * | 2012-04-05 | 2014-10-28 | Ericsson Modems Sa | MIMO configuration methods and apparatus |
US9722771B2 (en) * | 2015-09-30 | 2017-08-01 | Skyworks Solutions, Inc. | Parallel use of serial controls in improved wireless devices and power amplifier modules |
US20220278650A1 (en) * | 2021-02-26 | 2022-09-01 | Skyworks Solutions, Inc. | Power amplifiers with supply capacitor switching |
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2019
- 2019-09-03 JP JP2019160570A patent/JP7186681B2/ja active Active
-
2020
- 2020-02-26 US US16/802,333 patent/US11191022B2/en active Active
-
2021
- 2021-10-25 US US17/509,870 patent/US11785548B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000013248A (ja) | 1998-06-25 | 2000-01-14 | Mitsubishi Electric Corp | 送信出力制御装置 |
JP2001332986A (ja) | 2000-05-24 | 2001-11-30 | Matsushita Electric Ind Co Ltd | 送信出力制御方法及び基地局装置並びに送信出力調整方法及び装置 |
CN1378400A (zh) | 2001-03-23 | 2002-11-06 | 株式会社东芝 | 无线通信装置和发送功率控制装置 |
US20100151898A1 (en) | 2008-12-11 | 2010-06-17 | Electronics And Telecommunications Research Institute | Transmitter/receiver for wireless communication system |
JP2015192414A (ja) | 2014-03-28 | 2015-11-02 | 富士通株式会社 | 携帯端末装置およびアンテナ切り替え方法 |
Also Published As
Publication number | Publication date |
---|---|
US20210068057A1 (en) | 2021-03-04 |
JP2021040247A (ja) | 2021-03-11 |
US20220046545A1 (en) | 2022-02-10 |
US11785548B2 (en) | 2023-10-10 |
US11191022B2 (en) | 2021-11-30 |
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