CN101027892B - 具有干扰消除电路的多模式无线装置 - Google Patents

具有干扰消除电路的多模式无线装置 Download PDF

Info

Publication number
CN101027892B
CN101027892B CN2004800139593A CN200480013959A CN101027892B CN 101027892 B CN101027892 B CN 101027892B CN 2004800139593 A CN2004800139593 A CN 2004800139593A CN 200480013959 A CN200480013959 A CN 200480013959A CN 101027892 B CN101027892 B CN 101027892B
Authority
CN
China
Prior art keywords
communication pattern
antenna
communication
form signals
transmitter
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.)
Expired - Fee Related
Application number
CN2004800139593A
Other languages
English (en)
Other versions
CN101027892A (zh
Inventor
提摩西·A·艾克斯奈斯
利昂德·卡萨凯费许
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
InterDigital Technology Corp
Original Assignee
InterDigital Technology Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by InterDigital Technology Corp filed Critical InterDigital Technology Corp
Publication of CN101027892A publication Critical patent/CN101027892A/zh
Application granted granted Critical
Publication of CN101027892B publication Critical patent/CN101027892B/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • H04B1/44—Transmit/receive switching
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Noise Elimination (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

一种多模式无线传输/接收单元(WTRU)包括至少一天线，第一及第二通信模式接收器以及一第一通信模式传输器。该第一及第二接收器同时接收来自该天线的信号。该第一传输器产生并传送第一形态信号至天线，而同时，第二接收器接收来自天线的第二形态信号。于一较佳实施例中，此WTRU还包括一向量乘法器用以降低或消除由第二接收器所接收的信号的干扰，此干扰是由第一传输器所造成。向量乘法器调整由第二接收器测量的噪声(例如乱真频带间噪声)的相位及振幅。WTRU还包括一第二通信模式传输器用以产生并传送第二形态信号至天线。

Description

具有干扰消除电路的多模式无线装置
技术领域
本发明有关通信***。尤其是，本发明是有关无线***中衰减干扰接收器所接收的通信的乱真传输。
背景技术
在包含多个无线传输/接收单元(WTRU)(亦即使用者设备(UEs)，无线装置，移动平台，手机)以及一网络的信元通信***中，WTRU需要测量来自不同信元(cell)的信号以便寻找具有最强信号的基站并将其回报给网络以利于交接以及信元再选择(闲置模式)之用。当具有比目前服务中的基站强的信号的新基站被测量时，此网络将指示此个别的WTRU交接至新的基站。这些测量通常在共同信道上执行，例如码分多路接入(CDMA)网络中的领航信道(pilot channel)以及移动通信全球***(GSM)网络的广播控制信道(BCCH)。
多模式WTRUs支持超过一种无线接入技术(Radio Access Technology，RAT)。例如，多模式WTRU可能包括通用陆地无线***-频分双工(UTRA-FDD)CDMA及GSM的支持。通常，多模式是需要的以便支持不同RATs之间的交接。此种交接被称为inter-RAT交接。
此种多模式WTRUs的情况生一个问题，即其中一种模式需要固定传输。例如，在主动UTRA-FDD CDMA信元中，亦即当在「连接模式」中，WTRUs在不同的频带连续传输及接收。为执行inter-RAT交接的测量例如至一GSM或分时同步码分多路接入(TD-SCDMA)网络，WTRU必须在测量期间停止传输。否则，来自CDMA传输器的发射将干扰属于其它RAT的接收器。
图1表示以上所描述的问题。频谱100包括1920-1980MHz频带105中的UTRA-FDD信号，具有来自1805-1880MHz的落入GSM数字信元***(DCS)1800频带115的乱真发射。UTRA-FDD信号105如果未被衰减的话，本身如同GSM接收器的大的频外阻挡者并降低接收器的敏感度。已知的可实施滤波器解决方法提供UTRA-FDD信号的一些衰减，但小的频率间隔以及成本/尺寸的限制造成未影响来自UTRA-FDD传输器的乱真传输准位的不适当的滤波。
使用多模式运作的的需要连续传输的网络通过允许WTRU于其传输中产生间隙而避免此问题。在间隙期间，WTRU停止传输至服务中的信元。相反地，WTRU接收来自一不同***的邻近信元的信号。例如，通过在UTRA-FDD中实施一压缩模式，此WTRU能够从传输间隙中获益以执行GSM信元上的测量。
图2表示实施压缩模式运作的现有WTRU 200。此WTRU 200包括一天线205，一***开关210，一双工器215，一通用移动电讯***(UMTS)接收器(RX)220，一UMTS传输器(RX)225，一传输/接收开关230，一带通波器235，一GSM Rx 240以及一GSM Tx 245。***开关210是用于有选择性地连接天线205至一UMTS(例如UTRA-FDD)无线装置或一GSM无线装置。通过实施压缩模式，信元容量降低，因为在WTRU 200与网络之间发生的通信在以上所述的传输间隙期间被中断。希望有一种可以同时接收来自一UTRA-FDD信元以及一时分多址(TDMA)信元的多模式无线装置以避免此种通信中的中断。
发明内容
一种多模式WTRU包括至少一天线，一第一通信模式接收器，一第二模式通***以及一第一通信模式传输器。该天线是用于接收并传输至少二不同形态的信号。第一通信模式接收器用于接收来自天线的第一形态信号。第二通信模式接收器用于接收来自该天线的第二模式形态信号。第一通信模式传输器用于产生并传送该第一形态信号至该天线。该第一及第二通信模式接收器同时接收来自天线的信号。该第一传输器传送第一形态信号至天线，而同时第二接收器接收来自天线的第二形态信号。
此WTRU可以还包括一向量乘法器用于降低或删除由第二通信模式接收器所接收的信号的干扰，此干扰是由第一模式传输器所造成。向量乘法器调整此干扰的相位及振幅。
此WTRU可还包括一第二通信模式传输器用于产生并传送第二模式信号至天线，以及与该天线通信的开关。此开关可用于选择性地连接第二通信模式传输器至该天线，防止来自天线的信号到达该第一及第二通信模式接收器，并防止该第一通信模式传输器传送该第一形态信号至该天线。
该第一通信模式接收器可以是通用移动电讯***(UMTS)接收器。第二通信模式接收器可以是移动通信全球***(GSM)接收器。第一形态信号可以是频分双工(FDD)信号。由第一通信模式接收器接收的第一形态信号可由通用陆地无线接入(UTRA)-TDD信元所产生。第二通信模式接收器接收的第二形态信号可由移动通信全球***(GSM)所产生。
附图说明
本发明将可从以下结合附图对较佳实施例的描述中而获得更详细的了解，其中：
图1提供一种多模式WTRU中的干扰的实例；
图2表示执行测量用的现有需要压缩模式的多模式WTRU的实例；以及
图3提供本发明合并一干扰消除电路的WTRU的***方块图。
具体实施方式
以下是用于和无线多信元FDD通信***的UTRA-FDD信元通信的WTRU或集成电路的较佳实施例的描述，当从一TDMA信元，如GSM或UTRA-TDD信元接收信号时。当使WTRU未处于连接模式时，此WTRU必须周期性地搜寻新的基站。通常使WTRU必须尽可能地有效率地执行搜寻以便使功率消耗为最小，因此使电池寿命为最大。这可以有效率地执行，如果WTRU可以同时接收来自FDD信元及TDMA信元的信号。
较佳者，此处所揭示的本发明被合并至一无线传输/接收单元内(WTRU)。以下，WTRU包括但不限于使用者设备，移动站，固定或移动用户单元，呼叫器以及其它能够在无线***中操作的形态的装置。本发明的特征可以被合并至一IC内或可被设置于包括许多互相连接的组件的电路中。
本发明应用于使用TDD，TDMA，FDD，CDMA，CDMA 2000，分时同步CDMA(TDCDMA)，以及正交频分多路复用(OFDM)。然而，本发明也预想为可应用至其它形态的通信***。
图3是合并至WTRU 300的干扰消除***的较佳实施例的方块图。此WTRU包括一天线305，一传输/接收开关310，一三工器(triplexer)，第一耦合器320，第二耦合器325，UMTS Rx 350，同相/九十度相差(I/Q)向量乘法器355，干扰消除控制电路360以及调制解调器365。当WTRU 300在接收模式中时，在天线抵达的信号被传送至传输/接收开关310。此传输/接收开关310连接天线至三工器350以进行UMTS及GSM Rx运作。当WTRU 300位于GSM Tx模式中时，此传输/接收开关310在GSM传输期间连接天线至GSM Tx 345。
三工器315传递三不同信号，一UMTS Rx信号370，一UMTS Tx信号375以及一GSM Rx信号380。此UMTS Tx信号375包括由UMTS Tx 335产生的包括乱真发射的UMTS传输。虽然UMTS Tx信号375本身可以由三工器315以及GSM接收器340前方的可能的滤波器和GSM接收器340隔离，乱真发射的一部份将落入GSM接收频带且将在GSM Rx信号路径380上造成由UMTS Tx信道间噪声组成的漏电385。此漏电385必须被移除或GSM Rx 340将失去敏感度。
包含带通滤波器350，I/Q向量乘法器355，干扰消除控制电路360的干扰消除结构提供漏电385所需的衰减。UMTS传输器335的输出由第一耦合器320取样并经过带通滤波器350至I/Q向量乘法器355。此I/Q向量乘法器355响应干扰消除控制电路360提供的Vi(同相位电压)及Vq(九十度相差电压)调整被取样的UMTS传输信号的相位及振幅以使GSM Rx 340所见的噪声为最小。从I/Q向量乘法器355所输出的信号390经由第二耦合器325与GSM Rx信号组合。
被取样的UMTS信号的相位及振幅依据以下的程序使用I/Q向量乘法器355上的Vi线及Vq线394而被调整：
振幅＝10log((Vi^2+Vq^2)/2Vref^2)    程序1
以及
相位＝arc tan(Vq/Vi)                程序2
干扰消除控制电路360经由调制解调器365接收来自GSM接收器340的噪声的测量，并调整Vi信号392及Vq信号394直到I/Q向量乘法器355的相位及振幅使噪声为最小为止。此UMTS漏电385可以被衰减30dB，允许GSM Rx信号在UMTS频带上传输时的加强的接收。
虽然本发明特别参照实施例而被描述，熟悉本技术的人士将了解在不脱离 以上所述的本发明的范围的情况下可有形式及细节中不同的改变。

Claims (18)

1.一种多模式无线传输/接收单元，包括：
至少一天线，用以接收并传输至少二不同形态信号；
一第一通信模式接收器，用以接收来自该天线的一第一形态信号；
一第二通信模式接收器，用以接收来自该天线的一第二形态信号；
一第一通信模式传输器，用以产生并传送该第一形态信号至该天线，其中该第一及第二通信模式接收器同时接收来自该天线的信号，该第一通信模式传输器传送该第一形态信号至该天线，同时，该第二通信模式接收器接收来自该天线的第二形态信号；
一三工器，电耦合至该第一通信模式接收器；
一传输/接收开关，电耦合至该天线和该三工器；
一第一耦合器，电耦合至该三工器和该第一通信模式传输器；
一第二耦合器，电耦合至该三工器和该第二通信模式接收器；
一带通滤波器，电耦合至该第一耦合器；以及
一向量乘法器，电耦合至该带通滤波器和该第二耦合器，该向量乘法器配置用于降低或消除由该第二通信模式接收器接收的信号的干扰，该干扰是由该第一通信模式传输器所造成，其中该向量乘法器调整该干扰的相位及振幅。
2.如权利要求1所述的多模式无线传输/接收单元，其特征在于还包括：
一第二通信模式传输器，电耦合至该传输/接收开关，该第二通信模式传输器用于产生并传送该第二形态信号至该天线，其中该传输/接收开关配置用于选择性地连接该第二通信模式传输器至该天线，防止来自该天线的信号到达该第一及第二通信模式接收器，并防止该第一通信模式传输器传送该第一形态信号至该天线。
3.如权利要求1所述的多模式无线传输/接收单元，其特征在于该第一通信模式接收器是一通用移动电讯***接收器。
4.如权利要求1所述的多模式无线传输/接收单元，其特征在于该第二通信模式接收器是一移动通信全球***接收器。
5.如权利要求1所述的多模式无线传输/接收单元，其特征在于该第一形态 信号是一频分双工信号。
6.如权利要求5所述的多模式无线传输/接收单元，其特征在于由该第一通信模式接收器接收的该第一形态信号是由一通用陆地无线接入-频分双工信元所产生。
7.如权利要求1所述的多模式无线传输/接收单元，其特征在于该第二形态信号是一时分多路接入信号。
8.如权利要求7所述的多模式无线传输/接收单元，其特征在于由该第二通信模式接收器接收的该第二形态信号是由一通用陆地无线接入-时分双工信元所产生。
9.如权利要求7所述的多模式无线传输/接收单元，其特征在于由该第二通信模式接收器接收的该第二形态信号是由一移动通信全球***信元所产生。
10.一种与至少一用于接收及传输二不同形态信号的天线一起使用的集成电路，该集成电路包括：
一第一通信模式接收器，用于接收来自该天线的一第一形态信号；
一第二通信模式接收器，用于接收来自该天线的一第二形态信号；以及
一第一通信模式传输器，用于产生并传送该第一形态信号至该天线，其中该第一及第二通信模式接收器同时接收来自该天线的信号，该第一通信模式传输器传送该第一形态信号至该天线，同时，该第二通信模式接收器接收来自该天线的第二形态信号；
一三工器，电耦合至该第一通信模式接收器；
一传输/接收开关，电耦合至该天线和该三工器；
一第一耦合器，电耦合至该三工器和该第一通信模式传输器；
一第二耦合器，电耦合至该三工器和该第二通信模式接收器；
一带通滤波器，电耦合至该第一耦合器；以及
一向量乘法器，电耦合至该带通滤波器和该第二耦合器，该向量乘法器配置用于降低或消除由该第二通信模式接收器接收的信号的干扰，该干扰是由该第一通信模式传输器所造成，其中该向量乘法器调整该干扰的相位及振幅。
11.如权利要求10所述的集成电路，其特征在于还包括：
一第二通信模式传输器，电耦合至该传输/接收开关，该第二通信模式传输 器配置用于产生并传送该第二形态信号至该天线，其中该传输/接收开关配置用于选择性地连接该第二通信模式传输器至该天线，防止来自该天线的信号到达该第一及第二通信模式接收器，并防止该第一通信模式传输器传送该第一形态信号至该天线。
12.如权利要求10所述的集成电路，其特征在于该第一通信模式接收器是一通用移动电讯***接收器。
13.如权利要求10所述的集成电路，其特征在于该第二通信模式接收器是一移动通信全球***接收器。
14.如权利要求10所述的集成电路，其特征在于该第一形态信号是一频分双工信号。
15.如权利要求14所述的集成电路，其特征在于由该第一通信模式接收器接收的该第一形态信号是由一通用陆地无线接入-频分双工信元所产生。
16.如权利要求10所述的集成电路，其特征在于该第二形态信号是一时分多路接入信号。
17.如权利要求16所述的集成电路，其特征在于由该第二通信模式接收器接收的该第二形态信号是由一通用陆地无线接入-时分双工信元所产生。
18.如权利要求16所述的集成电路，其特征在于由该第二通信模式接收器接收的该第二形态信号是由一移动通信全球***信元所产生。 
CN2004800139593A 2003-05-27 2004-05-21 具有干扰消除电路的多模式无线装置 Expired - Fee Related CN101027892B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US47360003P 2003-05-27 2003-05-27
US60/473,600 2003-05-27
PCT/US2004/016164 WO2004114683A2 (en) 2003-05-27 2004-05-21 Multi-mode radio with interference cancellation circuit

Publications (2)

Publication Number Publication Date
CN101027892A CN101027892A (zh) 2007-08-29
CN101027892B true CN101027892B (zh) 2011-06-22

Family

ID=33539052

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2004800139593A Expired - Fee Related CN101027892B (zh) 2003-05-27 2004-05-21 具有干扰消除电路的多模式无线装置

Country Status (10)

Country Link
US (3) US7177663B2 (zh)
EP (1) EP1634464B1 (zh)
JP (1) JP4234175B2 (zh)
KR (4) KR20060007445A (zh)
CN (1) CN101027892B (zh)
AR (1) AR044562A1 (zh)
CA (1) CA2527146A1 (zh)
NO (1) NO20056059L (zh)
TW (3) TWI237954B (zh)
WO (1) WO2004114683A2 (zh)

Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7684461B2 (en) * 2002-12-30 2010-03-23 St-Ericsson Sa Multimode receiver
US7848741B2 (en) 2003-12-30 2010-12-07 Kivekaes Kalle Method and system for interference detection
US7652478B2 (en) 2004-05-07 2010-01-26 Baker Hughes Incorporated Cross-component alignment measurement and calibration
US7643811B2 (en) * 2004-05-26 2010-01-05 Nokia Corporation Method and system for interference detection
JP4214992B2 (ja) * 2004-12-13 2009-01-28 パナソニック株式会社 高周波受信器とこれに用いる集積回路及び、これらを用いた携帯機器、ならびにこれに用いる送信器と、前記高周波受信器および前記携帯機器の製造方法
US8064400B2 (en) 2005-07-20 2011-11-22 Interdigital Technology Corporation Method and system for supporting an evolved UTRAN
JP4631596B2 (ja) * 2005-08-19 2011-02-16 コニカミノルタビジネステクノロジーズ株式会社 プリント注文システム、プリント注文端末、プリント注文受付サーバ、及びプリント注文プログラム
US7761075B2 (en) * 2005-09-21 2010-07-20 Samsung Electronics Co., Ltd. Apparatus and method for interference cancellation in wireless mobile stations operating concurrently on two or more air interfaces
US7873385B2 (en) * 2006-04-05 2011-01-18 Palm, Inc. Antenna sharing techniques
US7894779B2 (en) * 2006-06-22 2011-02-22 Honeywell International Inc. Apparatus and method for transmitting and receiving multiple radio signals over a single antenna
US8755747B2 (en) 2006-10-31 2014-06-17 Qualcomm Incorporated Techniques to control transmit power for a shared antenna architecture
US8260214B2 (en) * 2006-10-31 2012-09-04 Hewlett-Packard Development Company, L.P. Shared antenna architecture for multiple co-located radio modules
US8036683B2 (en) * 2006-10-31 2011-10-11 Hewlett-Packard Development Company, L.P. Coordination among multiple co-located radio modules
CN101222691B (zh) * 2007-01-08 2011-03-02 中兴通讯股份有限公司 一种双模手机信道选择性干扰的抑制方法和抑制电路
US20080233869A1 (en) * 2007-03-19 2008-09-25 Thomas Baker Method and system for a single-chip fm tuning system for transmit and receive antennas
US8855029B2 (en) * 2007-03-21 2014-10-07 Skyworks Solutions, Inc. LMS adaptive filter for digital cancellation of second order inter-modulation due to transmitter leakage
US8050201B2 (en) * 2007-03-21 2011-11-01 Skyworks Solutions, Inc. LMS adaptive filter for digital cancellation of second order inter-modulation due to transmitter leakage
JP4874919B2 (ja) * 2007-10-01 2012-02-15 株式会社東芝 無線装置
CN101246998A (zh) * 2007-12-12 2008-08-20 西安海天天线科技股份有限公司 Gsm/td-scdma双模基站天线
US8909165B2 (en) 2009-03-09 2014-12-09 Qualcomm Incorporated Isolation techniques for multiple co-located radio modules
US9693390B2 (en) 2009-06-01 2017-06-27 Qualcomm Incorporated Techniques to manage a mobile device based on network density
US8971936B2 (en) 2009-09-01 2015-03-03 Adidas Ag Multimodal method and system for transmitting information about a subject
US20110105037A1 (en) * 2009-10-30 2011-05-05 Qualcomm Incorporated Methods and systems for interference cancellation in multi-mode coexistence modems
US8576965B2 (en) 2009-10-30 2013-11-05 Qualcomm Incorporated Methods and systems for interference cancellation in multi-mode coexistence modems
US8954011B2 (en) * 2010-02-19 2015-02-10 Broadcom Corporation Method and system for a wireless integrated test and measurement device
WO2011135719A1 (ja) * 2010-04-30 2011-11-03 富士通株式会社 基地局、通信システム、移動局および通信方法
US8600316B2 (en) * 2010-06-28 2013-12-03 Apple Inc. Wireless circuits with minimized port counts
DE102010033841A1 (de) 2010-08-10 2012-02-16 Nokia Siemens Networks Gmbh & Co. Kg Verfahren zum verbesserten Empfang eines in einem Empfangsband gesendeten Signals in einem drahtlosen Kommunikationssystem
KR101859589B1 (ko) * 2010-08-16 2018-06-28 삼성전자 주식회사 무선 통신 시스템에서 단말기 내에 복수 개의 이종 통신 모듈이 있을 경우 간섭을 회피하는 방법 및 장치
US9247466B2 (en) * 2010-12-23 2016-01-26 Qualcomm Incorporated System and method of improving redirection in a TD-SCDMA circuit-switched fallback from TDD-LTE systems
US10230419B2 (en) 2011-02-03 2019-03-12 The Board Of Trustees Of The Leland Stanford Junior University Adaptive techniques for full duplex communications
US10284356B2 (en) 2011-02-03 2019-05-07 The Board Of Trustees Of The Leland Stanford Junior University Self-interference cancellation
US9331737B2 (en) 2012-02-08 2016-05-03 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for cancelling interference using multiple attenuation delays
WO2012111980A2 (en) 2011-02-15 2012-08-23 Samsung Electronics Co., Ltd. Power headroom report method and apparatus of ue priority
WO2012115414A2 (en) 2011-02-21 2012-08-30 Samsung Electronics Co., Ltd. Method and apparatus for saving power of user equipment in wireless communication system
KR101995293B1 (ko) * 2011-02-21 2019-07-02 삼성전자 주식회사 반송파 집적 기술을 사용하는 시분할 무선통신시스템에서 부차반송파의 활성화 또는 비활성화 방법 및 장치
JP6125437B2 (ja) 2011-02-21 2017-05-10 サムスン エレクトロニクス カンパニー リミテッド 端末送信電力量を效率的に報告する方法及び装置
US9313681B2 (en) 2011-03-14 2016-04-12 Lg Electronics Inc. Method and apparatus for in-device coexistence interference information in wireless communication system
CN103609036B (zh) * 2011-05-12 2017-05-17 Lg电子株式会社 使用多个天线端口发射信号的方法及其发射端设备
CA2844932C (en) 2011-08-12 2021-06-08 Interdigital Patent Holdings, Inc. Method and apparatus for multiple-input multiple-output operation
JP5758754B2 (ja) * 2011-09-09 2015-08-05 太陽誘電株式会社 電子部品
CN102368694B (zh) * 2011-10-10 2014-02-26 上海交通大学 一种仿真m3l-ue杂散干扰的等效干扰源方法
US10243719B2 (en) 2011-11-09 2019-03-26 The Board Of Trustees Of The Leland Stanford Junior University Self-interference cancellation for MIMO radios
US9325432B2 (en) 2012-02-08 2016-04-26 The Board Of Trustees Of The Leland Stanford Junior University Systems and methods for full-duplex signal shaping
US8971452B2 (en) 2012-05-29 2015-03-03 Magnolia Broadband Inc. Using 3G/4G baseband signals for tuning beamformers in hybrid MIMO RDN systems
US8644413B2 (en) 2012-05-29 2014-02-04 Magnolia Broadband Inc. Implementing blind tuning in hybrid MIMO RF beamforming systems
US8861635B2 (en) 2012-05-29 2014-10-14 Magnolia Broadband Inc. Setting radio frequency (RF) beamformer antenna weights per data-stream in a multiple-input-multiple-output (MIMO) system
US8767862B2 (en) 2012-05-29 2014-07-01 Magnolia Broadband Inc. Beamformer phase optimization for a multi-layer MIMO system augmented by radio distribution network
US8837650B2 (en) 2012-05-29 2014-09-16 Magnolia Broadband Inc. System and method for discrete gain control in hybrid MIMO RF beamforming for multi layer MIMO base station
US8811522B2 (en) 2012-05-29 2014-08-19 Magnolia Broadband Inc. Mitigating interferences for a multi-layer MIMO system augmented by radio distribution network
US8619927B2 (en) 2012-05-29 2013-12-31 Magnolia Broadband Inc. System and method for discrete gain control in hybrid MIMO/RF beamforming
US8842765B2 (en) 2012-05-29 2014-09-23 Magnolia Broadband Inc. Beamformer configurable for connecting a variable number of antennas and radio circuits
US9154204B2 (en) 2012-06-11 2015-10-06 Magnolia Broadband Inc. Implementing transmit RDN architectures in uplink MIMO systems
WO2014070321A1 (en) 2012-11-01 2014-05-08 Maruti Gupta Signaling qos requirements and ue power preference in lte-a networks
US8797969B1 (en) 2013-02-08 2014-08-05 Magnolia Broadband Inc. Implementing multi user multiple input multiple output (MU MIMO) base station using single-user (SU) MIMO co-located base stations
US9343808B2 (en) 2013-02-08 2016-05-17 Magnotod Llc Multi-beam MIMO time division duplex base station using subset of radios
US9155110B2 (en) 2013-03-27 2015-10-06 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
US20140226740A1 (en) 2013-02-13 2014-08-14 Magnolia Broadband Inc. Multi-beam co-channel wi-fi access point
US8774150B1 (en) 2013-02-13 2014-07-08 Magnolia Broadband Inc. System and method for reducing side-lobe contamination effects in Wi-Fi access points
US8989103B2 (en) 2013-02-13 2015-03-24 Magnolia Broadband Inc. Method and system for selective attenuation of preamble reception in co-located WI FI access points
US9722639B2 (en) * 2013-05-01 2017-08-01 Qorvo Us, Inc. Carrier aggregation arrangements for mobile devices
US9100968B2 (en) 2013-05-09 2015-08-04 Magnolia Broadband Inc. Method and system for digital cancellation scheme with multi-beam
US9425882B2 (en) 2013-06-28 2016-08-23 Magnolia Broadband Inc. Wi-Fi radio distribution network stations and method of operating Wi-Fi RDN stations
US8995416B2 (en) 2013-07-10 2015-03-31 Magnolia Broadband Inc. System and method for simultaneous co-channel access of neighboring access points
US8824596B1 (en) 2013-07-31 2014-09-02 Magnolia Broadband Inc. System and method for uplink transmissions in time division MIMO RDN architecture
US11163050B2 (en) 2013-08-09 2021-11-02 The Board Of Trustees Of The Leland Stanford Junior University Backscatter estimation using progressive self interference cancellation
WO2015021461A1 (en) 2013-08-09 2015-02-12 Kumu Networks, Inc. Systems and methods for non-linear digital self-interference cancellation
US9698860B2 (en) 2013-08-09 2017-07-04 Kumu Networks, Inc. Systems and methods for self-interference canceller tuning
WO2015021481A2 (en) * 2013-08-09 2015-02-12 The Board Of Trustees Of The Leland Stanford Junior University Self-interference cancellation
US9036749B2 (en) 2013-08-09 2015-05-19 Kumu Networks, Inc. Systems and methods for frequency independent analog self-interference cancellation
US9497781B2 (en) 2013-08-13 2016-11-15 Magnolia Broadband Inc. System and method for co-located and co-channel Wi-Fi access points
US9054795B2 (en) 2013-08-14 2015-06-09 Kumu Networks, Inc. Systems and methods for phase noise mitigation
US9853720B2 (en) 2013-08-20 2017-12-26 Lg Electronics Inc. Method and user equipment for simultaneously accessing plurality of cells
CN105493416A (zh) 2013-08-29 2016-04-13 库姆网络公司 全双工中继装置
US10673519B2 (en) 2013-08-29 2020-06-02 Kuma Networks, Inc. Optically enhanced self-interference cancellation
US9520983B2 (en) 2013-09-11 2016-12-13 Kumu Networks, Inc. Systems for delay-matched analog self-interference cancellation
US9088898B2 (en) 2013-09-12 2015-07-21 Magnolia Broadband Inc. System and method for cooperative scheduling for co-located access points
US9060362B2 (en) 2013-09-12 2015-06-16 Magnolia Broadband Inc. Method and system for accessing an occupied Wi-Fi channel by a client using a nulling scheme
US9859943B2 (en) 2013-09-26 2018-01-02 Qorvo Us, Inc. Tunable RF diplexer
US9172454B2 (en) 2013-11-01 2015-10-27 Magnolia Broadband Inc. Method and system for calibrating a transceiver array
US8891598B1 (en) 2013-11-19 2014-11-18 Magnolia Broadband Inc. Transmitter and receiver calibration for obtaining the channel reciprocity for time division duplex MIMO systems
US8942134B1 (en) 2013-11-20 2015-01-27 Magnolia Broadband Inc. System and method for selective registration in a multi-beam system
US8929322B1 (en) * 2013-11-20 2015-01-06 Magnolia Broadband Inc. System and method for side lobe suppression using controlled signal cancellation
US9553712B2 (en) 2013-11-25 2017-01-24 Raytheon Company Feed-forward canceller
US9479214B2 (en) 2013-11-25 2016-10-25 Raytheon Company Wideband active radio frequency interference cancellation system
US9294177B2 (en) 2013-11-26 2016-03-22 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
US9014066B1 (en) 2013-11-26 2015-04-21 Magnolia Broadband Inc. System and method for transmit and receive antenna patterns calibration for time division duplex (TDD) systems
WO2015077957A1 (en) * 2013-11-28 2015-06-04 Qualcomm Incorporated Methods and apparatus for interference mitigation in a wireless communication system
US9042276B1 (en) 2013-12-05 2015-05-26 Magnolia Broadband Inc. Multiple co-located multi-user-MIMO access points
US10230422B2 (en) 2013-12-12 2019-03-12 Kumu Networks, Inc. Systems and methods for modified frequency-isolation self-interference cancellation
US9774405B2 (en) 2013-12-12 2017-09-26 Kumu Networks, Inc. Systems and methods for frequency-isolated self-interference cancellation
US9077421B1 (en) 2013-12-12 2015-07-07 Kumu Networks, Inc. Systems and methods for hybrid self-interference cancellation
US9729191B2 (en) 2014-03-14 2017-08-08 Qorvo Us, Inc. Triplexer architecture for aggregation
US9893709B2 (en) 2014-03-14 2018-02-13 Qorvo Us, Inc. RF triplexer architecture
US9100154B1 (en) 2014-03-19 2015-08-04 Magnolia Broadband Inc. Method and system for explicit AP-to-AP sounding in an 802.11 network
US9172446B2 (en) 2014-03-19 2015-10-27 Magnolia Broadband Inc. Method and system for supporting sparse explicit sounding by implicit data
US9712312B2 (en) 2014-03-26 2017-07-18 Kumu Networks, Inc. Systems and methods for near band interference cancellation
US9271176B2 (en) 2014-03-28 2016-02-23 Magnolia Broadband Inc. System and method for backhaul based sounding feedback
WO2015168700A1 (en) 2014-05-02 2015-11-05 The Board Of Trustees Of The Leland Stanford Junior University Method and apparatus for tracing motion using radio frequency signals
US9276682B2 (en) 2014-05-23 2016-03-01 Kumu Networks, Inc. Systems and methods for multi-rate digital self-interference cancellation
US9521023B2 (en) 2014-10-17 2016-12-13 Kumu Networks, Inc. Systems for analog phase shifting
US9712313B2 (en) 2014-11-03 2017-07-18 Kumu Networks, Inc. Systems for multi-peak-filter-based analog self-interference cancellation
WO2016077398A1 (en) * 2014-11-11 2016-05-19 Marvell World Trade Ltd. Interference cancellation
US9673854B2 (en) 2015-01-29 2017-06-06 Kumu Networks, Inc. Method for pilot signal based self-inteference cancellation tuning
WO2016166181A1 (en) * 2015-04-13 2016-10-20 Telefonaktiebolaget Lm Ericsson (Publ) Methods of adapting receiver configuration for control channel reception based on data reception
JP6376290B2 (ja) * 2015-06-03 2018-08-22 株式会社村田製作所 高周波フロントエンド回路
CN107710628B (zh) 2015-07-03 2020-08-04 株式会社村田制作所 前端模块
US9634823B1 (en) 2015-10-13 2017-04-25 Kumu Networks, Inc. Systems for integrated self-interference cancellation
CN108370082B (zh) 2015-12-16 2021-01-08 库姆网络公司 时延滤波器
US10666305B2 (en) 2015-12-16 2020-05-26 Kumu Networks, Inc. Systems and methods for linearized-mixer out-of-band interference mitigation
US9800275B2 (en) 2015-12-16 2017-10-24 Kumu Networks, Inc. Systems and methods for out-of band-interference mitigation
US9742593B2 (en) 2015-12-16 2017-08-22 Kumu Networks, Inc. Systems and methods for adaptively-tuned digital self-interference cancellation
US10454444B2 (en) 2016-04-25 2019-10-22 Kumu Networks, Inc. Integrated delay modules
WO2017189592A1 (en) 2016-04-25 2017-11-02 Kumu Networks, Inc. Integrated delay modules
US10338205B2 (en) 2016-08-12 2019-07-02 The Board Of Trustees Of The Leland Stanford Junior University Backscatter communication among commodity WiFi radios
KR20190075093A (ko) 2016-10-25 2019-06-28 더 보드 어브 트러스티스 어브 더 리랜드 스탠포드 주니어 유니버시티 후방 산란 주변 ism 대역 신호
US10103774B1 (en) 2017-03-27 2018-10-16 Kumu Networks, Inc. Systems and methods for intelligently-tuned digital self-interference cancellation
EP3876427A1 (en) 2017-03-27 2021-09-08 Kumu Networks, Inc. Systems and methods for tunable out-of-band interference mitigation
WO2018183352A1 (en) 2017-03-27 2018-10-04 Kumu Networks, Inc. Enhanced linearity mixer
US10341927B2 (en) * 2017-07-20 2019-07-02 GM Global Technology Operations LLC Vehicle wireless unit and method of operating the same
US10200076B1 (en) 2017-08-01 2019-02-05 Kumu Networks, Inc. Analog self-interference cancellation systems for CMTS
KR102397539B1 (ko) * 2017-11-20 2022-05-13 쿠무 네트웍스, 아이엔씨. 공존 시분할 이중 트랜시버를 강화-격리시키기 위한 시스템 및 방법
CN111771345B (zh) 2018-02-27 2021-08-31 库姆网络公司 用于可配置混合自干扰消除的***和方法
US10855325B2 (en) 2018-08-21 2020-12-01 Skyworks Solutions, Inc. Discrete time cancellation for providing coexistence in radio frequency communication systems
US10840957B2 (en) 2018-08-21 2020-11-17 Skyworks Solutions, Inc. Radio frequency communication systems with coexistence management based on digital observation data
US10840958B2 (en) 2018-08-21 2020-11-17 Skyworks Solutions, Inc. Radio frequency communication systems with discrete time cancellation for coexistence management
US11558079B2 (en) 2019-01-15 2023-01-17 Skyworks Solutions, Inc. Radio frequency communication systems with interference cancellation for coexistence
WO2020170269A1 (en) 2019-02-19 2020-08-27 Indian Institute Of Technology Madras Simultaneous sharing of spectrum in wireless communications
US10868661B2 (en) 2019-03-14 2020-12-15 Kumu Networks, Inc. Systems and methods for efficiently-transformed digital self-interference cancellation
WO2021061792A1 (en) 2019-09-27 2021-04-01 Skyworks Solutions, Inc. Mixed signal low noise interference cancellation
WO2021061834A1 (en) * 2019-09-27 2021-04-01 Skyworks Solutions, Inc. Antenna-plexer for interference cancellation
CN111952714B (zh) * 2020-08-13 2023-05-16 英华达（上海）科技有限公司 通讯组件及具有其的穿戴式装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1340926A (zh) * 2000-08-28 2002-03-20 朗迅科技公司 多发射和多接收天线cdma和tdma***中的训练和同步序列
US6526110B1 (en) * 1999-09-14 2003-02-25 Mitsubishi Electric Research Laboratories Inc. Embedded RAM based digital signal processor
EP1303055A1 (en) * 2000-06-26 2003-04-16 Matsushita Electric Industrial Co., Ltd. Three-frequency branching circuit, branching circuit, and radio communication device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2957289B2 (ja) 1991-02-04 1999-10-04 防衛庁技術研究本部長 送受信装置
US5442663A (en) * 1994-04-22 1995-08-15 Loral Aerospace Corp. Residual carrier adaptive cross-polarization equalizer
US5574978A (en) 1994-05-12 1996-11-12 American Nucleonics Corporation Interference cancellation system and radio system for multiple radios on a small platform
JP3046949B2 (ja) 1997-10-21 2000-05-29 防衛庁技術研究本部長 送受信装置
KR100316693B1 (ko) * 1999-12-22 2001-12-20 박종섭 이동통신 기지국의 ｒｆ블록
US6643522B1 (en) * 2000-03-27 2003-11-04 Sharp Laboratories Of America, Inc. Method and apparatus providing simultaneous dual mode operations for radios in the shared spectrum
JP4439696B2 (ja) 2000-08-08 2010-03-24 日本インター株式会社 圧接型半導体装置
DE10053205B4 (de) 2000-10-26 2017-04-13 Epcos Ag Kombinierte Frontendschaltung für drahtlose Übertragungssysteme
KR100737555B1 (ko) * 2000-12-30 2007-07-10 주식회사 팬택앤큐리텔 이동통신 시스템의 적응 간섭 제어 장치
JP2002290269A (ja) * 2001-03-27 2002-10-04 Sanyo Electric Co Ltd 複合高周波部品及びこれを用いた情報端末装置
JP2002374179A (ja) 2001-06-12 2002-12-26 Hitachi Kokusai Electric Inc 干渉信号除去装置
GB2382662B (en) * 2001-11-29 2003-12-10 Univ Cardiff High frequency circuit analyzer
US6952594B2 (en) * 2002-11-22 2005-10-04 Agilent Technologies, Inc. Dual-mode RF communication device
US20040185795A1 (en) * 2003-02-05 2004-09-23 Khosro Shamsaifar Electronically tunable RF Front End Module
US6845231B2 (en) * 2003-03-24 2005-01-18 Agilent Technologies, Inc. Method facilitating inter-mode handoff

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526110B1 (en) * 1999-09-14 2003-02-25 Mitsubishi Electric Research Laboratories Inc. Embedded RAM based digital signal processor
EP1303055A1 (en) * 2000-06-26 2003-04-16 Matsushita Electric Industrial Co., Ltd. Three-frequency branching circuit, branching circuit, and radio communication device
CN1340926A (zh) * 2000-08-28 2002-03-20 朗迅科技公司 多发射和多接收天线cdma和tdma***中的训练和同步序列

Also Published As

Publication number Publication date
WO2004114683A3 (en) 2006-12-21
US7447519B2 (en) 2008-11-04
CN101027892A (zh) 2007-08-29
JP4234175B2 (ja) 2009-03-04
KR20060007445A (ko) 2006-01-24
KR20060005415A (ko) 2006-01-17
NO20056059L (no) 2005-12-20
WO2004114683A2 (en) 2004-12-29
US20050020297A1 (en) 2005-01-27
TWI237954B (en) 2005-08-11
KR20090061678A (ko) 2009-06-16
AR044562A1 (es) 2005-09-21
TW200816658A (en) 2008-04-01
EP1634464A2 (en) 2006-03-15
EP1634464B1 (en) 2013-03-13
JP2007505591A (ja) 2007-03-08
US20090047914A1 (en) 2009-02-19
KR100766840B1 (ko) 2007-10-17
US20070117522A1 (en) 2007-05-24
EP1634464A4 (en) 2008-08-13
US7962170B2 (en) 2011-06-14
KR20070104951A (ko) 2007-10-29
TW200529580A (en) 2005-09-01
CA2527146A1 (en) 2004-12-29
TW200501607A (en) 2005-01-01
US7177663B2 (en) 2007-02-13

Similar Documents

Publication Publication Date Title
CN101027892B (zh) 具有干扰消除电路的多模式无线装置
US10644861B2 (en) Mobile device front end architecture for time division duplexing
US8462671B2 (en) Terminal having a variable duplex capability
KR100394931B1 (ko) 송수신장치
WO2003107564A1 (en) Signal translating repeater for a non-terrestrial environment
WO2003101011A1 (en) Signal translating repeater operable in a non-terrestrial environment
KR20140001909A (ko) 듀얼-모드 기지국
CN105144772A (zh) 减轻通信装置中干扰的方法及使用相同方法的通信装置
US11343780B2 (en) Method and circuit for determining an additional maximum power reduction for dual carrier operation
CN114710179A (zh) 射频***及其控制方法、以及无线通信设备
KR100377935B1 (ko) 무선 기지국의 인접채널파워 모니터링 시스템
EP1240721B1 (en) Frequency generation for cdma terminal with slotted receive mode
JP2890941B2 (ja) 無線電話装置及び無線電話システム
JP3834196B2 (ja) 高速ハンドオーバー式ｐｈｓ端末
JPS5823780B2 (ja) 移動通信における受信電界レベルの測定方式
JPH04267646A (ja) コードレス電話機
KR20050060289A (ko) 이동통신용 중계기
MXPA96001446A (en) Transmitter / recep apparatus

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
REG Reference to a national code

Ref country code: HK

Ref legal event code: DE

Ref document number: 1104727

Country of ref document: HK

C14 Grant of patent or utility model
GR01 Patent grant
REG Reference to a national code

Ref country code: HK

Ref legal event code: WD

Ref document number: 1104727

Country of ref document: HK

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110622

Termination date: 20170521