公开(公告)号：US11652522B2

公开(公告)日：2023-05-16

申请号：US16058879

申请日：2018-08-08

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Akula ,  Alberto Rico Alvarino ,  Aamod Khandekar ,  Helena Deirdre O'Shea ,  Supratik Bhattacharjee

IPC: H04B7/06 ,  H04L5/00 ,  H04W84/04 ,  H04W88/08

CPC classification number: H04B7/061 ,  H04L5/001 ,  H04L5/006 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/0096 ,  H04W84/042 ,  H04W88/08

Abstract: Certain aspects of the present disclosure relate to communication systems, and more particularly, to improving performance for sounding reference signal (SRS) antenna switching in carrier aggregation (CA). A method is provided, that may be performed by a user equipment (UE) for wireless communications. The method includes determining one or more band combinations that share an antenna switch and sending a list of one or more bands in the one or more band combinations to a base station (BS). The BS receives the list and schedules the UE based on the received list.

公开(公告)号：US20190313431A1

公开(公告)日：2019-10-10

申请号：US16449087

申请日：2019-06-21

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Akula ,  Seyedkianoush Hosseini ,  Wanshi Chen ,  Amir Farajidana

IPC: H04W72/12 ,  H04B1/04 ,  H04W52/02 ,  H04W52/34 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described that support time mask techniques for shortened transmission time intervals (sTTIs) that may enhance low latency communications. Time masks may be identified and applied for transmissions that use sTTIs, in a manner that provides increased portions of sTTI durations having higher transmission power, and thus increase the likelihood of successful reception of such transmissions at a receiver. In some cases, a transmitter, such as a user equipment (UE), may identify one or more sTTIs for transmissions of a first wireless service (e.g., an ultra-reliable low-latency communication (URLLC) service). An sTTI may be identified based on a duration of a TTI associated with the first wireless service being below a threshold duration (e.g., a TTI duration of less than 1 ms may be identified as an sTTI).

公开(公告)号：US20180278393A1

公开(公告)日：2018-09-27

申请号：US15922616

申请日：2018-03-15

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Akula ,  Seyedkianoush Hosseini ,  Wanshi Chen ,  Amir Farajidana ,  Peter Gaal

IPC: H04L5/00 ,  H04W72/04 ,  H04L1/00 ,  H04W72/12

CPC classification number: H04L5/0048 ,  H04L1/0003 ,  H04L5/0051 ,  H04L5/0064 ,  H04L5/0087 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/1242 ,  H04W72/14

Abstract: Methods, systems, and devices for wireless communication are described that support dynamic transient period configurations for shortened transmission time intervals (sTTIs). A transient period may be configured within uplink transmissions such that protection is enabled for reference signals and data. For example, a user equipment (UE) may receive a resource grant from a base station for an uplink transmission, where the uplink transmission includes at least a first reference signal and a transmission time interval (TTI) that includes data and a second reference signal. The UE may identify a type of the reference signals and data, and may determine a priority based on the identified types of reference signals and data. The UE may then configure a transient period that overlaps with the first reference signal, the TTI, or both, based on the priority.

公开(公告)号：US20180220441A1

公开(公告)日：2018-08-02

申请号：US15885298

申请日：2018-01-31

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Akula ,  Seyedkianoush Hosseini ,  Wanshi Chen ,  Amir Farajidana

IPC: H04W72/12 ,  H04W72/04

CPC classification number: H04W72/1268 ,  H04B1/04 ,  H04B2001/0416 ,  H04W52/0216 ,  H04W52/346 ,  H04W72/0446 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/21 ,  Y02D70/22 ,  Y02D70/40

Abstract: Methods, systems, and devices for wireless communication are described that support time mask techniques for shortened transmission time intervals (sTTIs) that may enhance low latency communications. Time masks may be identified and applied for transmissions that use sTTIs, in a manner that provides increased portions of sTTI durations having higher transmission power, and thus increase the likelihood of successful reception of such transmissions at a receiver. In some cases, a transmitter, such as a user equipment (UE), may identify one or more sTTIs for transmissions of a first wireless service (e.g., an ultra-reliable low-latency communication (URLLC) service). An sTTI may be identified based on a duration of a TTI associated with the first wireless service being below a threshold duration (e.g., a TTI duration of less than 1 ms may be identified as an sTTI).

公开(公告)号：US09350392B2

公开(公告)日：2016-05-24

申请号：US13712607

申请日：2012-12-12

Applicant: QUALCOMM Incorporated

Inventor： I-Hsiang Lin ,  Zhijie Xiong ,  Seshagiri Krishnamoorthy ,  Jin-Su Ko ,  Prashanth Akula ,  Liang Zhao ,  Kevin Hsi Huai Wang ,  Desong Zhao

IPC: H04B1/28 ,  H04B1/00

CPC classification number: H04B1/0064

Abstract: An RFIC configuration for reduced antenna trace loss is disclosed. In an exemplary embodiment, an apparatus includes a primary RFIC and a secondary RFIC that is configured to receive analog signals from at least two antennas. The secondary RFIC is configured to process selected analog signals received from at least one antenna to generate an analog output that is input to the primary RFIC.

Abstract translation: 公开了一种用于降低天线轨迹损耗的RFIC配置。 在示例性实施例中，装置包括主RFIC和辅助RFIC，其被配置为从至少两个天线接收模拟信号。 辅助RFIC被配置为处理从至少一个天线接收的所选模拟信号，以产生输入到主RFIC的模拟输出。

公开(公告)号：US09225493B2

公开(公告)日：2015-12-29

申请号：US14073723

申请日：2013-11-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoyin He ,  Ashok Mantravadi ,  Bruce A Judson ,  Prashanth Akula

IPC: H04B7/005 ,  H04L5/00 ,  H04L5/14 ,  H04W52/24 ,  H04L5/16 ,  H04W88/06 ,  H04W72/12 ,  H04W88/02

CPC classification number: H04L5/0066 ,  H04L5/14 ,  H04L5/16 ,  H04W52/243 ,  H04W72/1226 ,  H04W88/02 ,  H04W88/06

Abstract: The present disclosure includes systems and methods for operating a wireless communication system in multiple modes. The system is configured in a first mode when a transmission interference in a receiver of a wireless device is below a first threshold. The system is configured in one or more intermediate modes when the transmission interference is above the first threshold and below a second threshold. The system is configured in a second mode when the transmission interference is above the second threshold. The one or more intermediate modes activate interference management processes and the wireless device transmits data and receives data simultaneously. In some embodiments, transmission interference may be based on an SINR measurement.

Abstract translation: 本公开包括用于以多种模式操作无线通信系统的系统和方法。 当无线设备的接收机中的传输干扰低于第一阈值时，系统被配置为第一模式。 当传输干扰高于第一阈值并低于第二阈值时，系统被配置为一个或多个中间模式。 当传输干扰高于第二阈值时，系统被配置为第二模式。 一个或多个中间模式激活干扰管理过程，并且无线设备同时发送数据和接收数据。 在一些实施例中，传输干扰可以基于SINR测量。

公开(公告)号：US09172414B2

公开(公告)日：2015-10-27

申请号：US14023569

申请日：2013-09-11

Applicant: QUALCOMM Incorporated

Inventor： Wenjun Li ,  Huang Lou ,  Michael L. McCloud ,  Amit Mahajan ,  Nate Chizgi ,  Jing Sun ,  Francis M. Ngai ,  Jun Hu ,  Vansh Pal Singh Makh ,  Prashanth Akula ,  Tsai-Chen Huang ,  Jittra Jootar ,  Erdogan Dede ,  Narendra Varma Gottimukkala ,  Yingbo Li

IPC: H04B1/00 ,  H04B15/00 ,  H04B1/10 ,  H04B1/12 ,  H04B1/525 ,  H04W16/14 ,  H04B15/04 ,  H04W88/06

CPC classification number: H04B1/12 ,  H04B1/1027 ,  H04B1/525 ,  H04B15/04 ,  H04W16/14 ,  H04W88/06

Abstract: The various embodiments include a dual-SIM-dual-active (DSDA) device and methods for implementing robust receive (Rx) processing to resolve radio frequency coexistence interference between two subscriptions operating on the DSDA device. The DSDA device may detect when a subscription (the “aggressor”) de-senses the other subscription (the “victim”) as a result of the aggressor's transmissions, and in response, implement robust Rx processing to mitigate the effects of de-sense on the victim while causing minimal impact to the aggressor.

Abstract translation: 各种实施例包括双SIM双重（DSDA）设备和用于实现鲁棒接收（Rx）处理以解决在DSDA设备上操作的两个订阅之间的射频共存干扰的方法。 DSDA设备可以检测订阅（“侵略者”）何时由于侵略者的传输而解除其他订阅（“受害者”），并且作为响应，实施鲁棒的Rx处理以减轻去感觉的影响 对受害者造成的影响最小。

公开(公告)号：US11576179B2

公开(公告)日：2023-02-07

申请号：US16927042

申请日：2020-07-13

Applicant: QUALCOMM Incorporated

Inventor： Prashanth Akula ,  Seyedkianoush Hosseini ,  Peter Gaal ,  Tingfang Ji ,  Young Geun Cho

IPC: H04W4/00 ,  H04W72/044 ,  H04L5/00 ,  H04W52/34 ,  H04W52/32 ,  H04W52/36 ,  H04W72/04 ,  H04W52/14 ,  H04W72/0446

Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may group multiple carriers with transmission time intervals (TTIs) having different durations into different physical uplink control channel (PUCCH) groups. The UE may reserve power per each PUCCH group. Alternatively, the UE may reserve power per each TTI duration across the one or more PUCCH groups.

公开(公告)号：US09450626B2

公开(公告)日：2016-09-20

申请号：US14643498

申请日：2015-03-10

Applicant: QUALCOMM Incorporated

Inventor： Ojas Mahendra Choksi ,  Bin Fan ,  Bassel Hanafi ,  Hasnain Mohammedi Lakdawala ,  Prashanth Akula ,  Faramarz Sabouri

IPC: H04L27/06 ,  H04B1/16 ,  H04B1/10 ,  H04B1/04

CPC classification number: H04B1/16 ,  H04B1/1018 ,  H04B1/1027 ,  H04B1/1638 ,  H04B2001/0416

Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.

Abstract translation: 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。

公开(公告)号：US20160142085A1

公开(公告)日：2016-05-19

申请号：US14643498

申请日：2015-03-10

Applicant: QUALCOMM Incorporated

Inventor： Ojas Mahendra Choksi ,  Bin Fan ,  Bassel Hanafi ,  Hasnain Mohammedi Lakdawala ,  Prashanth Akula ,  Faramarz Sabouri

IPC: H04B1/16 ,  H04B1/10

CPC classification number: H04B1/16 ,  H04B1/1018 ,  H04B1/1027 ,  H04B1/1638 ,  H04B2001/0416

Abstract: An apparatus including: at least one differential amplifier configured to amplify a radio frequency signal; a mixer configured to mix the radio frequency signal from the at least one differential amplifier with a local oscillator signal; and a low-pass filter coupled to the mixer, the low-pass filter includes a capacitor and at least one variable resistor configured to tune the low-pass filter.

Abstract translation: 一种装置，包括：至少一个差分放大器，被配置为放大射频信号; 配置为将来自所述至少一个差分放大器的射频信号与本地振荡器信号混合的混频器; 以及耦合到混频器的低通滤波器，低通滤波器包括电容器和配置成调谐低通滤波器的至少一个可变电阻器。