公开(公告)号：US20210250775A1

公开(公告)日：2021-08-12

申请号：US17171915

申请日：2021-02-09

Applicant: QUALCOMM Incorporated

Inventor： Carl HARDIN ,  Brian Clarke BANISTER ,  Shrenik PATEL ,  Michael KOHLMANN ,  Liang ZHAO ,  Le Nguyen LUONG ,  Tevfik YUCEK ,  Roland RICK ,  Shriram GURUMOORTHY ,  Francis NGAI

IPC: H04W16/14 ,  H04W4/80 ,  H04W52/36 ,  H04W52/24

Abstract: A user equipment (UE) includes a first communication component configured to use a first frequency band, such as ultra-wide band (UWB), and a second communication component configured to use an intermediate frequency (IF) band that overlaps with the UWB band, such as an IF millimeter wave (mmWave) band. The second communication component conducts an IF signal along an internal signal conduction line that may interfere with UWB processing. A processor of the UE is configured to detect an indication of such interference, and, in response to the indication of interference, control the second communication component to adjust a characteristic of the IF band signal to mitigate the interference, such as by reducing its signal strength. The amount by which the IF band signal strength is reduced may be controlled to achieve a desired tradeoff between various performance metrics, such as power consumption and quality of service.

公开(公告)号：US20150271005A1

公开(公告)日：2015-09-24

申请号：US14220425

申请日：2014-03-20

Applicant: QUALCOMM Incorporated

Inventor： Cheng-Han WANG ,  I-Liang LIN ,  Liang ZHAO ,  Hong Sun KIM ,  Yi ZENG

IPC: H04L27/34 ,  H04L27/36

CPC classification number: H04L27/3405 ,  H03C2200/0041 ,  H03D3/008 ,  H03D3/009 ,  H03D2200/0045 ,  H04L27/364

Abstract: A circuit for performing a residual side band calibration is described. The circuit generally includes a phase imbalance detection circuit. The phase imbalance detection circuit may include a limiter. The phase imbalance detection circuit may be independent of gain imbalance. The circuit may also include a phase imbalance correction circuit. The phase imbalance detection circuit may control coupling between an inphase path and a quadrature path.

Abstract translation: 描述用于执行残余边带校准的电路。 该电路通常包括相位不平衡检测电路。 相位不平衡检测电路可以包括限幅器。 相位不平衡检测电路可以与增益不平衡无关。 电路还可以包括相位不平衡校正电路。 相位不平衡检测电路可以控制同相路径和正交路径之间的耦合。