公开(公告)号：US09232562B2

公开(公告)日：2016-01-05

申请号：US13919756

申请日：2013-06-17

Applicant: QUALCOMM Incorporated

Inventor： Li Liu ,  Chiewcharn Narathong

IPC: H04W4/00 ,  H04W88/06 ,  H04B1/00 ,  H04B1/403 ,  H04W16/14 ,  H04W72/12

CPC classification number: H04W88/06 ,  H04B1/0053 ,  H04B1/403 ,  H04W16/14 ,  H04W72/1215

Abstract: A wireless device supporting concurrent communication with multiple wireless systems of different radio access technologies (RATs) are disclosed. In an exemplary design, an apparatus includes first and second receivers supporting concurrent signal reception from wireless systems of different RATs. The first receiver receives a first downlink signal from a first wireless system of a first RAT. The second receiver receives a second downlink signal from a second wireless system of a second RAT, which is different from the first RAT. The first and second receivers may operate concurrently. The second receiver may be broadband and/or may support carrier aggregation. The apparatus may further include first and second local oscillator (LO) generators to generate LO signals for the first and second receivers, respectively, based on different divider ratios in order to mitigate voltage controlled oscillator (VCO) pulling.

Abstract translation: 公开了一种支持与不同无线电接入技术（RAT）的多个无线系统的并发通信的无线设备。 在示例性设计中，装置包括支持来自不同RAT的无线系统的并发信号接收的第一和第二接收机。 第一接收机从第一RAT的第一无线系统接收第一下行链路信号。 第二接收机从与第一RAT不同的第二RAT的第二无线系统接收第二下行链路信号。 第一和第二接收器可以同时运行。 第二接收机可以是宽带和/或可以支持载波聚合。 该装置还可以包括第一和第二本地振荡器（LO）发生器，以分别基于不同的分频比产生用于第一和第二接收器的LO信号，以便减轻压控振荡器（VCO）的拉动。

公开(公告)号：US20150373711A1

公开(公告)日：2015-12-24

申请号：US14676639

申请日：2015-04-01

Applicant: QUALCOMM Incorporated

Inventor： Chiewcharn Narathong ,  Aleksandar Miodrag Tasic ,  Gurkanwal Singh Sahota

IPC: H04W72/04 ,  H04J4/00 ,  H04B7/02

CPC classification number: H04W72/0453 ,  H04B1/0057 ,  H04B1/44 ,  H04B7/024 ,  H04J4/005 ,  H04L1/02 ,  H04L27/2601

Abstract: A carrier aggregation diversity antenna module with integrated low noise amplifier banks is disclosed. In an exemplary embodiment, an apparatus includes at least one switch configured to establish a transmit signal path to transmit an uplink signal from at least one diversity antenna and to establish a receive signal path to receive downlink diversity signals from the at least one diversity antenna. The apparatus also includes band selection filters configured to filter the downlink diversity signals to generate at least three diversity band signals. The apparatus also includes a multiplexing amplifier configured to amplify the diversity band signals to generate at least three amplified diversity band signals that are output to a transceiver.

Abstract translation: 公开了一种具有集成低噪声放大器组的载波聚合分集天线模块。 在示例性实施例中，一种装置包括至少一个开关，其被配置为建立发送信号路径以从至少一个分集天线发送上行链路信号，并且建立接收信号路径以从所述至少一个分集天线接收下行链路分集信号。 该装置还包括频带选择滤波器，被配置为滤波下行分集信号以产生至少三个分集频带信号。 该装置还包括复用放大器，被配置为放大分集频带信号以产生输出到收发机的至少三个放大的分集频带信号。

公开(公告)号：US20150333949A1

公开(公告)日：2015-11-19

申请号：US14664492

申请日：2015-03-20

Applicant: QUALCOMM Incorporated

Inventor： Aleksandar Miodrag Tasic ,  Chiewcharn Narathong ,  Christian Holenstein ,  Dongling Pan ,  Yiwu Tang ,  Rajagopalan Rangarajan ,  Lai Kan Leung

IPC: H04L27/26 ,  H04L12/709 ,  H04L12/761

CPC classification number: H04L27/2653 ,  H03F1/223 ,  H03F3/193 ,  H03F3/245 ,  H04B1/0064 ,  H04L45/16 ,  H04L45/245

Abstract: Multiplex modules for use in carrier aggregation receivers are disclosed. In an exemplary embodiment, an apparatus includes an LNA multiplexer configured to receive a plurality of RF signals at a plurality of input terminals and to combine the RF signals into a combined RF signal that is output from an output terminal The apparatus also includes an LNA demultiplexer configured to receive the combined RF signal at an input port that is connected to the output terminal and to distribute the combined RF signal to a plurality of output ports.

Abstract translation: 公开了用于载波聚合接收机的多路复用模块。 在示例性实施例中，一种装置包括LNA复用器，其被配置为在多个输入端子处接收多个RF信号，并将RF信号组合成从输出端输出的组合RF信号。该装置还包括LNA解复用器 被配置为在连接到输出端子的输入端口处接收组合的RF信号，并将组合的RF信号分配到多个输出端口。

公开(公告)号：US09143085B2

公开(公告)日：2015-09-22

申请号：US13765992

申请日：2013-02-13

Applicant: QUALCOMM Incorporated

Inventor： Chiewcharn Narathong ,  Lai Kan Leung ,  Soon-Seng Lau ,  Shrenik Patel

IPC: H03B28/00 ,  H04B1/403 ,  H04B1/408 ,  H04B1/04

CPC classification number: H03B28/00 ,  H04B1/0475 ,  H04B1/406 ,  H04B1/408

Abstract: A dual frequency synthesizer architecture for a wireless device operating in a time division duplex (TDD) mode is disclosed. In an exemplary design, the wireless device includes first and second frequency synthesizers. The first frequency synthesizer generates a first oscillator signal used to generate a first/receive local oscillator (LO) signal at an LO frequency for the receiver. The second frequency synthesizer generates a second oscillator signal used to generate a second/transmit LO signal at the same LO frequency for the transmitter. The two frequency synthesizers generate their oscillator signals to obtain receive and transmit LO signals at the same LO frequency when the wireless device operates in the TDD mode.

Abstract translation: 公开了一种用于以时分双工（TDD）模式工作的无线设备的双频合成器架构。 在示例性设计中，无线设备包括第一和第二频率合成器。 第一频率合成器产生用于产生用于接收机的LO频率的第一/接收本地振荡器（LO）信号的第一振荡器信号。 第二频率合成器产生用于产生用于发射机的相同LO频率的第二/发射LO信号的第二振荡器信号。 当无线设备在TDD模式下工作时，两个频率合成器产生其振荡器信号以获得在相同LO频率下的接收和发送LO信号。

公开(公告)号：US09031158B2

公开(公告)日：2015-05-12

申请号：US13646876

申请日：2012-10-08

Applicant: QUALCOMM Incorporated

Inventor： Prasad Srinivasa Siva Gudem ,  Vijay K Chellappa ,  Jeremy Darren Dunworth ,  Chiewcharn Narathong

IPC: H04L25/49 ,  H04B1/04 ,  H04B7/02 ,  H04B1/00 ,  H04W52/02

CPC classification number: H04B1/0483 ,  H04B1/005 ,  H04B1/406 ,  H04B7/02 ,  H04W52/0209 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/166 ,  Y02D70/40

Abstract: A method and apparatus for providing total power from one transmit path. The method provides the steps of: selecting a transmit path and closing a first switch, located after a digital to analog converter. A second switch between the two transmit paths is then closed in order to provide for the use of at least one low-pass filter in each transmit path. The signal is then processed through the at least one low pass filter in each transmit path. The signal is then processed through at least one mixer in each transmit path. After the mixer, the signal is then processed through at least one driver amplifier in each transmit path, and one-half of the total power is allocated to each of two transmission paths. A third switch is then closed after the at least one power amplifier in each transmit path to force the half-power from one transmit path into one output.

Abstract translation: 一种用于从一个发送路径提供总功率的方法和装置。 该方法提供了以下步骤：选择发送路径并关闭位于数模转换器之后的第一开关。 然后关闭两个发送路径之间的第二个开关，以便在每个发送路径中提供使用至少一个低通滤波器。 然后通过每个发射路径中的至少一个低通滤波器处理该信号。 然后通过每个发送路径中的至少一个混频器处理信号。 在混频器之后，然后通过每个发送路径中的至少一个驱动器放大器处理信号，并且将总功率的一半分配给两个传输路径中的每一个。 然后在每个发射路径中的至少一个功率放大器之后关闭第三开关，以将来自一个发射路径的半功率强制为一个输出。

公开(公告)号：US20140370882A1

公开(公告)日：2014-12-18

申请号：US13919756

申请日：2013-06-17

Applicant: QUALCOMM Incorporated

Inventor： Li Liu ,  Chiewcharn Narathong

IPC: H04W88/06

CPC classification number: H04W88/06 ,  H04B1/0053 ,  H04B1/403 ,  H04W16/14 ,  H04W72/1215

Abstract: A wireless device supporting concurrent communication with multiple wireless systems of different radio access technologies (RATs) are disclosed. In an exemplary design, an apparatus includes first and second receivers supporting concurrent signal reception from wireless systems of different RATs. The first receiver receives a first downlink signal from a first wireless system of a first RAT. The second receiver receives a second downlink signal from a second wireless system of a second RAT, which is different from the first RAT. The first and second receivers may operate concurrently. The second receiver may be broadband and/or may support carrier aggregation. The apparatus may further include first and second local oscillator (LO) generators to generate LO signals for the first and second receivers, respectively, based on different divider ratios in order to mitigate voltage controlled oscillator (VCO) pulling.

Abstract translation: 公开了一种支持与不同无线电接入技术（RAT）的多个无线系统的并发通信的无线设备。 在示例性设计中，装置包括支持来自不同RAT的无线系统的并发信号接收的第一和第二接收机。 第一接收机从第一RAT的第一无线系统接收第一下行链路信号。 第二接收机从与第一RAT不同的第二RAT的第二无线系统接收第二下行链路信号。 第一和第二接收器可以同时运行。 第二接收机可以是宽带和/或可以支持载波聚合。 该装置还可以包括第一和第二本地振荡器（LO）发生器，以分别基于不同的分频比产生用于第一和第二接收器的LO信号，以便减轻压控振荡器（VCO）的拉动。

公开(公告)号：US08874059B2

公开(公告)日：2014-10-28

申请号：US13800846

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Li Liu ,  Steven C Ciccarelli ,  Shrenik Patel ,  Prasad Srinivasa Siva Gudem ,  Zixiang Yang ,  Frederic Bossu ,  Wu-Hsin Chen ,  Chiewcharn Narathong

IPC: H04B1/10 ,  H04W52/02

CPC classification number: H04W52/0238 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/24

Abstract: A method for reducing power consumption on a wireless communication device is described. The wireless communication device includes a first stage active filter and a second stage active filter. A condition measurement is obtained that includes a signal measurement condition. If it is determined that the condition measurement is above a threshold, the second stage active filter is bypassed.

Abstract translation: 描述了一种用于降低无线通信设备的功耗的方法。 无线通信装置包括第一级有源滤波器和第二级有源滤波器。 获得包括信号测量条件的条件测量。 如果确定条件测量高于阈值，则旁路第二级有源滤波器。

公开(公告)号：US20140270032A1

公开(公告)日：2014-09-18

申请号：US13829232

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Li Liu ,  Praveen-Kumar Sampath ,  Lai Kan Leung ,  Chiewcharn Narathong ,  Soon-Seng Lau ,  Ketan Humnabadkar ,  Raghu Narayan Challa ,  Devavrata Vasant Godbole

IPC: H04L7/00 ,  H04L7/033

CPC classification number: H04L7/0331 ,  H03B21/01 ,  H03D3/009 ,  H04W52/02 ,  H04W52/0209 ,  Y02D70/1222 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Techniques for detecting and correcting phase discontinuity of a local oscillator (LO) signal are disclosed. In one design, a wireless device includes an LO generator and a phase detector. The LO generator generates an LO signal used for frequency conversion and is periodically powered on and off. The phase detector detects the phase of the LO signal when the LO generator is powered on. The detected phase of the LO signal is used to identify phase discontinuity of the LO signal. The wireless device may further include (i) a single-tone generator that generates a single-tone signal used to detect the phase of the LO signal, (ii) a downconverter that downconverts the single-tone signal with the LO signal and provides a downconverted signal used by the phase detector to detect the phase of LO signal, and (iii) phase corrector that corrects phase discontinuity of the LO signal in the analog domain or digital domain.

Abstract translation: 公开了用于检测和校正本地振荡器（LO）信号的相位不连续性的技术。 在一种设计中，无线设备包括LO发生器和相位检测器。 LO发生器产生用于频率转换的LO信号，并且周期性地通电和关断。 当LO发生器通电时，相位检测器检测LO信号的相位。 LO信号的检测相位用于识别LO信号的相位不连续性。 无线设备还可以包括（i）生成用于检测LO信号的相位的单音信号的单音发生器，（ii）下变频器，其使用LO信号对单音信号进行下变频，并提供 相位检测器用于检测LO信号的相位的下变频信号，以及（iii）校正模拟域或数字域中的LO信号的相位不连续性的相位校正器。

公开(公告)号：US08774745B2

公开(公告)日：2014-07-08

申请号：US13787214

申请日：2013-03-06

Applicant: QUALCOMM Incorporated

Inventor： Kan Lai Leung ,  Chiewcharn Narathong ,  Jianyun Hu ,  Yunfei Feng

IPC: H04B17/00 ,  H01Q11/12

CPC classification number: H04B17/21 ,  H03F3/193 ,  H03F3/72 ,  H03F2200/294 ,  H03F2200/451 ,  H04B1/1638 ,  H04B1/30 ,  H04B17/29

Abstract: Receiver circuits that can be reconfigured to generate test signals in a wireless device are disclosed. In an exemplary design, an apparatus includes a mixer and an amplifier. The mixer downconverts an input radio frequency (RF) signal based on a local oscillator (LO) signal in a first mode. The amplifier, which is formed by at least a portion of the mixer, amplifies the LO signal and provides an amplified LO signal in a second mode. In another exemplary design, an apparatus includes an amplifier and an attenuator. The amplifier receives and amplifies an input RF signal in a first mode. The attenuator, which is formed by at least a portion of the amplifier, receives and passes an LO signal in a second mode.

Abstract translation: 公开了可以被重新配置以在无线设备中生成测试信号的接收机电路。 在示例性设计中，装置包括混频器和放大器。 混合器在第一模式中基于本地振荡器（LO）信号来降频输入射频（RF）信号。 由混频器的至少一部分形成的放大器放大LO信号，并以第二模式提供放大的LO信号。 在另一示例性设计中，装置包括放大器和衰减器。 放大器以第一模式接收并放大输入RF信号。 由放大器的至少一部分形成的衰减器在第二模式中接收和传递LO信号。

公开(公告)号：US20140134959A1

公开(公告)日：2014-05-15

申请号：US13675917

申请日：2012-11-13

Applicant: QUALCOMM INCORPORATED

Inventor： Aleksandar Miodrag Tasic ,  Chiewcharn Narathong

IPC: H04B1/40

CPC classification number: H04B1/40 ,  H04B1/18

Abstract: Expandable transceivers and receivers supporting operation on multiple frequency bands and multiple carriers are disclosed. In an exemplary design, an apparatus (e.g., a wireless device, an integrated circuit (IC) chip, or circuit module) includes a low noise amplifier (LNA) and interface circuit. The LNA resides on an IC chip and includes a first/on-chip output and a second/off-chip output. The interface circuit also resides on the IC chip, is coupled to the second output of the LNA, and provides an amplified RF signal outside of the IC chip. The apparatus may further include a buffer, load circuit, and downconverter circuit. The buffer resides on the IC chip, is coupled to the first output of the LNA, and receives a second amplified RF signal from outside of the IC chip. The load circuit is coupled to the first output of the LNA. The downconverter circuit is coupled to the load circuit.

Abstract translation: 公开了在多个频带和多个载波上支持操作的可扩展收发器和接收机。 在示例性设计中，装置（例如，无线装置，集成电路（IC）芯片或电路模块）包括低噪声放大器（LNA）和接口电路。 LNA驻留在IC芯片上，包括第一/片上输出和第二/片外输出。 接口电路也位于IC芯片上，耦合到LNA的第二输出端，并在IC芯片外部提供放大的RF信号。 该装置还可以包括缓冲器，负载电路和下变频器电路。 缓冲器位于IC芯片上，耦合到LNA的第一输出，并从IC芯片的外部接收第二放大的RF信号。 负载电路耦合到LNA的第一输出端。 下变频器电路耦合到负载电路。