公开(公告)号：US11622238B2

公开(公告)日：2023-04-04

申请号：US17937407

申请日：2022-09-30

Applicant: QUALCOMM Incorporated

Inventor： Jordan Cookman ,  Liang Zhao ,  Angelica Wong ,  Krishnaranjan Rao ,  Chang Row

IPC: H04W72/04 ,  H04W24/02 ,  H04W72/12 ,  H04W16/14 ,  H04W4/029 ,  H04W76/10 ,  G01S19/33 ,  G01S19/21 ,  G01S19/32 ,  H04W72/08 ,  H04W72/0453 ,  H04W72/541

Abstract: A mobile device may be configured to perform concurrent Satellite Positioning System (SPS) operation and wireless communications when uplink signals transmitted by the mobile device interferes with the reception of SPS signals in one or more frequency bands. The mobile device may determine if the SPS receiver has already acquired SPS signals and is in a tracking state. If the SPS receiver is not in a tracking state, an SPS acquisition procedure is initiated before the wireless communication session is initiated. The SPS acquisition procedure is performed until the SPS receiver reaches a tracking state, or until a timeout is reached. Once the SPS receiver is in a tracking state, the wireless communication session may be initiated, during which the SPS receiver is controlled, e.g., to perform signal blanking, measurement exclusion, or disable SPS reception, to mitigate interference with SPS signals.

公开(公告)号：US11294413B2

公开(公告)日：2022-04-05

申请号：US16835494

申请日：2020-03-31

Applicant: QUALCOMM Incorporated

Inventor： Balasubramanian Sivakumar ,  Dinesh Jagannath Alladi ,  Kentaro Yamamoto ,  Sean Baker ,  Liang Zhao

IPC: G05F3/08 ,  H04B1/16

Abstract: An apparatus for generating a substantially constant DC reference voltage. The apparatus includes a reference voltage generator configured to generate a substantially constant direct current (DC) reference voltage based on a voltage on a data signal transmission line, wherein the voltage is based on a bandgap reference voltage. In one implementation, the data signal transmission line is a differential signal transmission line and the voltage is a common mode voltage. In another implementation, the data signal transmission line is an I-data signal transmission line and a Q-data signal transmission line, and the voltage is an average or weighted-average of the common mode voltages of the I- and Q-differential signals. In another implementation, the reference voltage is based on a single-ended (e.g., positive- and/or negative)-component or vice-versa of I- and Q-data signals, respectively.

公开(公告)号：US10244527B2

公开(公告)日：2019-03-26

申请号：US15365528

申请日：2016-11-30

Applicant: QUALCOMM Incorporated

Inventor： Leena Zacharias ,  Aziz Gholmieh ,  Liang Zhao

IPC: H04W72/04 ,  H04W76/34 ,  H04L5/00

Abstract: Aspects of the present disclosure generally relate to wireless communications. In some aspects, a device may receive a first uplink grant for a first cell that uses a first component carrier, and may receive a second uplink grant for a second cell that uses a second component carrier. The device may determine at least one of: a number of subframes for which uplink data is transmitted on both the first cell and the second cell during a time period, or a resource block allocation associated with the first cell and the second cell. The device may drop at least one of the first uplink grant or the second uplink grant based at least in part on at least one of: a determination that the number of subframes satisfies a threshold number of subframes, or a determination that the resource block allocation satisfies a condition.

公开(公告)号：US08995591B2

公开(公告)日：2015-03-31

申请号：US13828417

申请日：2013-03-14

Applicant: QUALCOMM Incorporated

Inventor： Prasad Srinivasa Siva Gudem ,  Liang Zhao ,  Jin-Su Ko ,  Hong Sun Kim

IPC: H04L1/02 ,  H04B7/02 ,  H04L5/00 ,  H04B1/00 ,  H04B1/18 ,  H04B1/40 ,  H04B7/04

CPC classification number: H04B7/02 ,  H04B1/0064 ,  H04B1/18 ,  H04B1/40 ,  H04B7/04 ,  H04B7/0837 ,  H04L5/0098

Abstract: A wireless communication device configured for receiving multiple signals is described. The wireless communication device includes a single-chip carrier aggregation receiver architecture. The single-chip carrier aggregation receiver architecture includes a first antenna, a second antenna, a third antenna, a fourth antenna and a transceiver chip. The transceiver chip includes multiple carrier aggregation receivers. The single-chip carrier aggregation receiver architecture reuses at least one of the carrier aggregation receivers for secondary diversity.

Abstract translation: 描述了被配置为接收多个信号的无线通信设备。 无线通信设备包括单芯片载波聚合接收机架构。 单芯片载波聚合接收机架构包括第一天线，第二天线，第三天线，第四天线和收发机芯片。 收发机芯片包括多个载波聚合接收机。 单芯片载波聚合接收机架构重用至少一个载波聚合接收机进行二次分集。