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1. 发明授权

EP2936691B1 DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE 有权转让
标题翻译：具有共享局部振荡器信号的多样性接收器在多样性模式下
公开(公告)号：EP2936691B1
公开(公告)日：2018-02-07
申请号：EP13821595.9
申请日：2013-12-20
申请人： Qualcomm Incorporated
发明人： GUDEM, Prasad Srinivasa Siva , LIU, Li , BOSSU, Frederic
IPC分类号： H04B1/00 , H04B7/08 , H04B1/26 , H03D7/14
CPC分类号： H03D7/1466 , H04B1/005 , H04B1/0064 , H04B7/0871 , Y02D70/40 , Y02D70/444
摘要： A multi-mode receiver is disclosed that is reconfigurable to share a local oscillator signal in diversity mode to save power consumption. In an exemplary embodiment, an apparatus includes a primary receiver having a primary mixer configured to down-convert a primary signal and a secondary mixer configured to down-convert a secondary signal in carrier aggregation mode. The apparatus also includes a supplemental mixer that uses a shared primary local oscillator (LO) signal generated by a shared primary frequency synthesizer in diversity mode to reduce power consumption. The apparatus further includes a controller configured to disable the secondary mixer and to enable the supplemental mixer to down-convert the secondary signal when operating in the diversity mode.

2. 发明公开

EP3116121A1 MIXER ARCHITECTURES 有权
标题翻译： MISCHERARCHITECTUREN
公开(公告)号：EP3116121A1
公开(公告)日：2017-01-11
申请号：EP16184401.4
申请日：2009-10-30
申请人： QUALCOMM Incorporated
发明人： KHATRI, Himanshu , LIU, Li
IPC分类号： H03D7/14
摘要： Techniques for designing a single-balanced mixer coupled to a dummy portion with a dummy load to improve noise rejection. In an aspect, a single-ended signal (RF) from a stage preceding the mixer, e.g., a low-noise amplifier (LNA), is coupled to the input of the single-balanced mixer to be mixed with a local oscillator (LO) signal. A dummy portion replicating the topology of the single-balanced mixer is coupled to the single-balanced mixer to improve noise rejection, with the LO signal also provided to the dummy portion. The input of the dummy portion may be coupled, e.g., to a dummy load, which is designed to replicate the loading characteristics of the preceding stage, e.g., the LNA.
摘要翻译：用于设计耦合到具有虚拟负载的虚拟部分以改善噪声抑制的单平衡混频器的技术。在一个方面，来自混频器之前的级（例如低噪声放大器（LNA））的单端信号（RF）耦合到单平衡混频器的输入端，以与本地振荡器（LO ）信号。将单平衡混频器的拓扑复制的虚拟部分耦合到单平衡混频器以改善噪声抑制，同时LO信号也提供给虚拟部分。虚拟部分的输入可以例如耦合到虚拟负载，其被设计为复制前一级的负载特性，例如LNA。

3. 发明授权

EP2294699B1 METHOD AND APPARATUS FOR PROCESSING A COMMUNICATION SIGNAL IN A RECEIVER 有权
标题翻译：方法和设备用于处理通信信号接收器
公开(公告)号：EP2294699B1
公开(公告)日：2016-09-14
申请号：EP09731682.2
申请日：2009-04-15
申请人： QUALCOMM Incorporated
发明人： GUDEM, Prasad, S. , CABANILLAS, Jose , CHANG, Li-Chung , LIU, Li
IPC分类号： H04B1/10
CPC分类号： H04B1/109 , H03F1/3205 , H03F1/3211 , H03F3/193 , H03F3/245

4. 发明公开

EP2371064A1 DUTY CYCLE ADJUSTMENT FOR A LOCAL OSCILLATOR SIGNAL 有权
标题翻译：本地振荡器信号的占空比调整
公开(公告)号：EP2371064A1
公开(公告)日：2011-10-05
申请号：EP09760441.7
申请日：2009-11-25
申请人： QUALCOMM Incorporated
发明人： PANIKKATH, Vinod, V. , LIU, Li
IPC分类号： H03L7/08
CPC分类号： H03K5/1565 , H03K3/017 , H03L7/08
摘要： A local oscillator (LO) module comprises a local oscillator and a feedback circuit. The local oscillator, biased at a supply voltage, generates a local oscillator signal having a duty cycle. The feedback circuit makes an absolute adjustment of the duty cycle of the local oscillator signal in response to a difference between a first voltage signal, representing a voltage level of the local oscillator signal, and a second voltage signal, representing a voltage level of a portion of the supply voltage corresponding to a desired duty cycle for the local oscillator signal.
摘要翻译：本地振荡器（LO）模块包括本地振荡器和反馈电路。偏置在电源电压的本地振荡器产生具有占空比的本地振荡器信号。响应于表示本地振荡器信号的电压电平的第一电压信号与表示本地振荡器信号的电压电平的第二电压信号之间的差异，反馈电路对本地振荡器信号的占空比进行绝对调整的电源电压对应于本地振荡器信号的期望占空比。

5. 发明公开

EP2351208A2 MIXER ARCHITECTURES 有权
标题翻译：混合器架构
公开(公告)号：EP2351208A2
公开(公告)日：2011-08-03
申请号：EP09749276.3
申请日：2009-10-30
申请人： QUALCOMM Incorporated
发明人： KHATRI, Himanshu , LIU, Li
IPC分类号： H03D7/14
CPC分类号： H03D7/1441 , H03D7/1433 , H03D7/1466 , H03D2200/0043
摘要： Techniques for designing a single-balanced mixer coupled to a dummy portion with a dummy load to improve noise rejection. In an aspect, a single-ended signal (RF) from a stage preceding the mixer, e.g., a low-noise amplifier (LNA), is coupled to the input of the single-balanced mixer to be mixed with a local oscillator (LO) signal. A dummy portion replicating the topology of the single-balanced mixer is coupled to the single-balanced mixer to improve noise rejection, with the LO signal also provided to the dummy portion. The input of the dummy portion may be coupled, e.g., to a dummy load, which is designed to replicate the loading characteristics of the preceding stage, e.g., the LNA.
摘要翻译：用虚拟负载设计耦合到虚拟部分的单平衡混频器以改善噪声抑制的技术。在一个方面，来自混频器之前的级（例如低噪声放大器（LNA））的单端信号（RF）耦合到单平衡混频器的输入端以与本地振荡器（LO ）信号。复制单平衡混频器的拓扑结构的虚拟部分耦合到单平衡混频器以改善噪声抑制，LO信号也提供给虚拟部分。虚设部分的输入可以例如耦合到虚设负载，虚设负载被设计为复制前级的负载特性，例如LNA。

6. 发明公开

EP4406061A1 MILLIMETER WAVE ANTENNA TUNER 审中-公开
公开(公告)号：EP4406061A1
公开(公告)日：2024-07-31
申请号：EP22777848.7
申请日：2022-09-02
申请人： QUALCOMM INCORPORATED
发明人： WANG, Chuan , LIU, Li , ASURI, Bhushan Shanti , WANG, Kevin Hsi-Huai , SAHOTA, Gurkanwal Singh
IPC分类号： H01Q1/22 , H01Q5/328 , H01Q5/335 , H01Q21/00 , H01Q21/06
CPC分类号： H01Q1/2283 , H01Q21/0075 , H01Q21/065 , H01L2223/667720130101 , H01Q5/328 , H01Q5/335 , H01L23/66 , H01L2223/665520130101 , H01L2223/667220130101 , H01L24/16 , H01L2224/1614520130101

7. 发明公开

EP4232832A1 SYSTEM AND METHOD FOR ACTIVE S11 DETECTION IN PHASED ARRAY TRANSCEIVERS 审中-实审
公开(公告)号：EP4232832A1
公开(公告)日：2023-08-30
申请号：EP21805790.9
申请日：2021-10-18
申请人： QUALCOMM INCORPORATED
发明人： WANG, Chuan , LIU, Li , WANG, Kevin Hsi-Huai , ASURI, Bhushan Shanti , PATEL, Shrenik , BHATTACHARYA, Anushruti , MOHAMMADI, Laya , PARK, Sang-June
IPC分类号： G01R27/06 , H04B17/10 , H04B1/04

8. 发明授权

EP2327152B1 HIGH-LINEARITY LOW-NOISE RECEIVER WITH LOAD SWITCHING 有权
标题翻译：具有负载切换功能的高线性低噪声接收器
公开(公告)号：EP2327152B1
公开(公告)日：2018-03-28
申请号：EP09791629.0
申请日：2009-08-18
申请人： QUALCOMM Incorporated
发明人： LIU, Li , GUDEM, Prasad, S.
IPC分类号： H03F1/56 , H03F3/45
CPC分类号： H03F1/32 , H03F1/0277 , H03F1/223 , H03F1/56 , H03F3/45188 , H03F3/72 , H03F2200/294 , H03F2200/336 , H03F2203/45386 , H03F2203/45394 , H03F2203/45726 , H03F2203/7206 , H03F2203/7236 , H04B1/109 , H04B1/18
摘要： A receiver includes a low noise amplifier (LNA) and multiple pairs of mixers. The LNA receives and amplifies an LNA input signal and provides at least one LNA output signal. Each pair of mixers downconverts one of the at least one LNA output signal when enabled. Each pair of mixers may be selectively enabled or disabled, e.g., based on a mode selected from among multiple modes. In one design, the LNA includes multiple load sections coupled in parallel. Each load section may be selectively enabled or disabled, e.g., based on the selected mode. In one design, first and second pairs of mixers and first and second load sections may be enabled for a high linearity mode. The first pair of mixers and the first load section may be enabled and the second pair of mixers and the second load section may be disabled for a low linearity mode.

9. 发明公开

EP3297173A1 DIVERSITY RECEIVER WITH SHARED LOCAL OSCILLATOR SIGNAL IN DIVERSITY MODE 有权
标题翻译：具有共享局部振荡器信号的多样性接收器在多样性模式下
公开(公告)号：EP3297173A1
公开(公告)日：2018-03-21
申请号：EP17197005.6
申请日：2013-12-20
申请人： QUALCOMM Incorporated
发明人： GUDEM, Prasad Srinivasa Siva , LIU, Li , BOSSU, Frederic
IPC分类号： H04B1/26 , H04B7/08 , H04B1/00 , H03D7/14
CPC分类号： H03D7/1466 , H04B1/005 , H04B1/0064 , H04B7/0871 , Y02D70/40 , Y02D70/444
摘要： A multi-mode receiver is disclosed that is reconfigurable to share a local oscillator signal in diversity mode to save power consumption. In an exemplary embodiment, an apparatus includes a primary receiver having a primary mixer configured to down-convert a primary signal and a secondary mixer configured to down-convert a secondary signal in carrier aggregation mode. The apparatus also includes a supplemental mixer that uses a shared primary local oscillator (LO) signal generated by a shared primary frequency synthesizer in diversity mode to reduce power consumption. The apparatus further includes a controller configured to disable the secondary mixer and to enable the supplemental mixer to down-convert the secondary signal when operating in the diversity mode.
摘要翻译：公开了一种多模式接收机，其可重新配置为以分集模式共享本地振荡器信号以节省功耗。在一个示例性实施例中，一种装置包括主接收机，该主接收机具有被配置为对主信号进行下变频的主混频器和被配置为以载波聚合模式对辅信号进行下变频的副混频器。该装置还包括辅助混合器，其使用分集模式下的共享主要频率合成器生成的共享主要本地振荡器（LO）信号以降低功耗。该装置还包括控制器，该控制器被配置为禁用辅助混频器并且使得辅助混频器在工作在分集模式下时对辅助信号进行下变频。

10. 发明公开

EP2878159A1 LOW POWER LOCAL OSCILLATOR SIGNAL GENERATION 有权
标题翻译：信号生成由当地的低功耗振荡器
公开(公告)号：EP2878159A1
公开(公告)日：2015-06-03
申请号：EP13733477.7
申请日：2013-06-12
申请人： Qualcomm Incorporated
发明人： LIU, Li , GUDEM, Prasad Srinivasa Siva , BOSSU, Frederic , NARATHONG, Chiewcharn
IPC分类号： H04W52/02
CPC分类号： H04B17/004 , H04B17/102 , H04B17/20 , H04W52/0274 , Y02D70/00
摘要： A method and apparatus for providing an oscillating signal within a transmitter/receiver circuit is described. The transmitter/receiver circuit may include an oscillator that generates an oscillating signal that may be provided to a low power, low gain mixer of the transmitter/receiver circuit along a shorter circuit path that includes low power circuitry, such as low power buffers and low power frequency dividers. The oscillating signal may also be provided to a high power, high gain mixer along a longer circuit path that includes high power circuitry, such as high power buffers and high power frequency dividers. Specifically, the low power circuitry is adapted to consume less power in an ON state than the high power circuitry in an ON state, and the shorter circuit path has a shorter electrical path length than the longer circuit path.

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