公开(公告)号：US10575279B2

公开(公告)日：2020-02-25

申请号：US15088725

申请日：2016-04-01

Applicant: QUALCOMM Incorporated

Inventor： Bhushan Shanti Asuri ,  Jingcheng Zhuang ,  Praveen Sampath ,  Shrenik Patel ,  Jeremy Darren Dunworth ,  Lai Kan Leung ,  Gurkanwal Singh Sahota ,  Jong Min Park

IPC: H04W72/04 ,  H04L5/00 ,  H04B1/713 ,  H04B1/7136

Abstract: An apparatus comprising a transmit path, a plurality of local oscillators and a control unit. The control unit may be configured to: receive an upcoming resource block (RB) allocation; determine whether the upcoming RB allocation is the same as the current RB allocation; in response to determining that the upcoming RB allocation is different than the current RB allocation: select an unused LO of the plurality of LOs; determine whether a number of allocated RBs associated with the upcoming RB allocation is greater than a threshold; and in response to determining that the number of allocated RBs associated with the upcoming RB allocation is not greater than the threshold, tune the selected LO to a frequency corresponding to the upcoming RB allocation.

公开(公告)号：US10454509B2

公开(公告)日：2019-10-22

申请号：US15962865

申请日：2018-04-25

Applicant: QUALCOMM Incorporated

Inventor： Bhushan Shanti Asuri ,  Krishnaswamy Thiagarajan ,  Ashok Swaminathan ,  Shahin Mehdizad Taleie ,  Yen-Wei Chang ,  Vinod Panikkath ,  Sameer Vasantlal Vora ,  Ayush Mittal ,  Tonmoy Biswas ,  Sy-Chyuan Hwu ,  Zhilong Tang ,  Ibrahim Chamas ,  Ping Wing Lai ,  Behnam Sedighi ,  Dongwon Seo ,  Nitz Saputra

IPC: H04B1/04 ,  H04L27/20 ,  H04B1/00

Abstract: A communication circuit may include a first pair of digital-to-analog converters (DACs) coupled to an input of a first mixer and configured to generate first baseband signals. The communication circuit may further include a second pair of DACs coupled to an input of a second mixer and configured to generate second baseband signals. The second baseband signals may be shifted in phase relative to the first baseband signals.

公开(公告)号：US20170094641A1

公开(公告)日：2017-03-30

申请号：US15088725

申请日：2016-04-01

Applicant: QUALCOMM Incorporated

Inventor： Bhushan Shanti Asuri ,  Jingcheng Zhuang ,  Praveen Sampath ,  Shrenik Patel ,  Jeremy Darren Dunworth ,  Lai Kan Leung ,  Gurkanwal Singh Sahota ,  Jong Min Park

IPC: H04W72/04 ,  H04B1/713

CPC classification number: H04W72/04 ,  H04B1/713 ,  H04B2001/71362 ,  H04L5/0044 ,  H04L5/0053 ,  H04L5/0094

Abstract: An apparatus comprising a transmit path, a plurality of local oscillators and a control unit. The control unit may be configured to: receive an upcoming resource block (RB) allocation; determine whether the upcoming RB allocation is the same as the current RB allocation; in response to determining that the upcoming RB allocation is different than the current RB allocation: select an unused LO of the plurality of LOs; determine whether a number of allocated RBs associated with the upcoming RB allocation is greater than a threshold; and in response to determining that the number of allocated RBs associated with the upcoming RB allocation is not greater than the threshold, tune the selected LO to a frequency corresponding to the upcoming RB allocation.

公开(公告)号：US09035703B2

公开(公告)日：2015-05-19

申请号：US13775026

申请日：2013-02-22

Applicant: QUALCOMM Incorporated

Inventor： Haigang Feng ,  Vinod V Panikkath ,  Janakiram G Sankaranarayanan ,  Bhushan Shanti Asuri

IPC: H03F3/191 ,  H03G9/24 ,  H03F1/22 ,  H03F1/42 ,  H03F1/56 ,  H03F3/193 ,  H03F3/24

CPC classification number: H03G9/24 ,  H03F1/223 ,  H03F1/42 ,  H03F1/565 ,  H03F3/193 ,  H03F3/245 ,  H03F2200/06 ,  H03F2200/111 ,  H03F2200/36 ,  H03F2200/378 ,  H03F2200/387 ,  H03F2200/39 ,  H03F2200/391 ,  H03F2200/534

Abstract: A tunable wide band driver amplifier is disclosed. In an exemplary embodiment, an apparatus includes a first band selection circuit selectively connected between an output terminal of an amplifier and a circuit ground. The first band selection circuit configured to adjust an amplification band from a first frequency band to a second frequency band. The apparatus also includes a first harmonic reduction circuit selectively connected between the first band selection circuit and the circuit ground and configured to reduce 2nd harmonic frequencies associated with the first frequency band when the amplification band is set to the first frequency band.

Abstract translation: 公开了一种可调宽带驱动放大器。 在示例性实施例中，一种装置包括选择性地连接在放大器的输出端和电路接地之间的第一频带选择电路。 第一频带选择电路，被配置为将放大频带从第一频带调整到第二频带。 该装置还包括选择性地连接在第一频带选择电路和电路地之间的第一谐波减小电路，并被配置为当放大频带被设置为第一频带时，减少与第一频带相关联的二次谐波频率。