公开(公告)号：US20160233931A1

公开(公告)日：2016-08-11

申请号：US15076529

申请日：2016-03-21

Applicant: QUALCOMM Incorporated

Inventor： Albert van Zelst ,  Didier Johannes Richard van Nee ,  Vincent Knowles Jones, IV ,  Simon Jan Brand ,  Patrick Daniel Kelliher ,  MeeLan Lee ,  Todd Daniel Antes ,  Maarten Menzo Wentink ,  Alireza Kheirkhahi ,  Ayse Yesilyurt

IPC: H04B7/04 ,  H04B17/12

CPC classification number: H04B7/0413 ,  H04B17/12

Abstract: In an aspect a transceiver is provided. The transceiver may include a plurality of local oscillator (LO) generators configured to generate a plurality of LO signals, respectively, for mixing with one or more communication signals. The transceiver also includes a first synthesizer configured to generate a first reference signal and a second synthesizer configured to generate a second reference signal. The transceiver also includes a distribution circuit. The distribution circuit is configured to switch an input to at least one of the LO generators between the first and second reference signals for tuning each of the at least one of the LO generators between two different LO frequencies and to input to the other ones of the LO generators the first reference signal for tuning each of the other ones of the LO generators to an LO frequency.

Abstract translation: 在一方面，提供收发器。 收发器可以包括多个本地振荡器（LO）发生器，其被配置为分别产生用于与一个或多个通信信号混合的多个LO信号。 收发器还包括被配置为产生第一参考信号的第一合成器和被配置为产生第二参考信号的第二合成器。 收发器还包括分配电路。 分配电路被配置为将输入切换到第一参考信号和第二参考信号之间的至少一个LO发生器，用于调谐两个不同LO频率之间的至少一个LO发生器中的每一个，并输入到 LO产生第一参考信号，用于将LO发生器中的每一个调谐到LO频率。

公开(公告)号：US09210535B2

公开(公告)日：2015-12-08

申请号：US13645346

申请日：2012-10-04

Applicant: QUALCOMM Incorporated

Inventor： Alireza Kheirkhahi ,  Shahram Abdollahi-Alibeik ,  Lalitkumar Nathawad ,  Ke Gong ,  Ali Agah

IPC: H04W4/00 ,  H04B1/525 ,  H04J11/00

CPC classification number: H04W4/80 ,  H04B1/525 ,  H04J11/0023

Abstract: This disclosure describes techniques for providing active interference cancellation in a wireless communication system having a Bluetooth transmit chain and a WLAN receive chain. A signal sampled from the Bluetooth transmit chain is gain and phase adjusted to offset interference in the WLAN receive chain. A quadrature phase shifter may be used to generate quadrature components of the sampled signal that are selectively combined to achieve a desired phase adjustment. The phase shifter may be stabilized by a variable capacitor. These techniques may be extended to MIMO systems.

Abstract translation: 本公开描述了在具有蓝牙发射链和WLAN接收链的无线通信系统中提供主动干扰消除的技术。 从蓝牙发射链采样的信号是增益和相位调整以抵消WLAN接收链中的干扰。 正交移相器可以用于产生被选择性地组合以获得期望的相位调整的采样信号的正交分量。 移相器可以由可变电容器稳定。 这些技术可以扩展到MIMO系统。

公开(公告)号：US10056949B2

公开(公告)日：2018-08-21

申请号：US15076529

申请日：2016-03-21

Applicant: QUALCOMM Incorporated

Inventor： Albert van Zelst ,  Didier Johannes Richard van Nee ,  Vincent Knowles Jones, IV ,  Simon Jan Brand ,  Patrick Daniel Kelliher ,  MeeLan Lee ,  Todd Daniel Antes ,  Maarten Menzo Wentink ,  Alireza Kheirkhahi ,  Ayse Yesilyurt

IPC: H04B7/0413 ,  H04B17/12

CPC classification number: H04B7/0413 ,  H04B17/12

Abstract: In an aspect a transceiver is provided. The transceiver may include a plurality of local oscillator (LO) generators configured to generate a plurality of LO signals, respectively, for mixing with one or more communication signals. The transceiver also includes a first synthesizer configured to generate a first reference signal and a second synthesizer configured to generate a second reference signal. The transceiver also includes a distribution circuit. The distribution circuit is configured to switch an input to at least one of the LO generators between the first and second reference signals for tuning each of the at least one of the LO generators between two different LO frequencies and to input to the other ones of the LO generators the first reference signal for tuning each of the other ones of the LO generators to an LO frequency.