公开(公告)号：US10581660B2

公开(公告)日：2020-03-03

申请号：US16175519

申请日：2018-10-30

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Krishna Kiran Mukkavilli ,  Sundar Subramanian ,  Junyi Li

IPC: H04W88/02 ,  H04L27/26 ,  H04L5/00 ,  H04W76/27 ,  H04W72/04 ,  H04W88/08

Abstract: DM-RS symbols may be inserted in the beginning of a subframe, or in two parts of the subframe. In one aspect, a method, a computer-readable medium, and an apparatus for dynamically conveying DM-RS information are provided. The apparatus may be a base station. The apparatus may determine the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols. The apparatus may transmit the number of the DM-RS symbols and/or the locations within the subframe for transmission of the DM-RS symbols to a UE. In another aspect, a UE may receive the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols from a base station. The UE may decode the DM-RS symbols from the subframe based on the number of the DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols.

公开(公告)号：US10548144B2

公开(公告)日：2020-01-28

申请号：US15956616

申请日：2018-04-18

Applicant: QUALCOMM Incorporated

Inventor： Joseph Binamira Soriaga ,  Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  John Edward Smee

IPC: H04W16/28 ,  H04W72/08 ,  H04W72/04 ,  H04B7/06 ,  H04B7/0417

Abstract: Systems, devices, and methods associated with interference aware sounding reference signals are provided. A method for wireless communication includes receiving, at a wireless communication device in communication with a first base station, an interfering signal from a second base station (or other base stations); determining, at the wireless communication device, a spatial direction of the interfering signal; and transmitting, with the wireless communication device, a signal to the first base station based on the spatial direction of the interfering signal. Another method of wireless communication includes receiving, at a first base station, a signal from a wireless communication device, the signal based on a spatial direction of an interfering signal received by the wireless communication device from a second base station (or other base stations); transmitting, with the first base station, a downlink communication to the wireless communication device, the downlink communication beamformed in the spatial direction based on the signal received from the wireless communication device.

公开(公告)号：US10397865B2

公开(公告)日：2019-08-27

申请号：US15805634

申请日：2017-11-07

Applicant: QUALCOMM Incorporated

Inventor： Peter Pui Lok Ang ,  Tingfang Ji ,  John Edward Smee ,  Joseph Binamira Soriaga ,  Krishna Kiran Mukkavilli ,  Peter Gaal ,  Gavin Bernard Horn ,  Alexei Yurievitch Gorokhov ,  Naga Bhushan ,  Michael Alexander Howard ,  Joseph Patrick Burke ,  Rotem Cooper

IPC: H04W52/02 ,  H04W28/02 ,  H04W52/24 ,  H04W52/26

Abstract: Systems, methods, apparatuses, and computer-readable storage media for managing power consumption of a mobile device are disclosed. The systems, method, apparatus, and computer-readable storage medium may cause the base station to identify an energy metric associated with a mobile device, and to configure the transmission between the base station and the mobile device based at least in part on the energy metric. The configuration of the transmission may reduce the power consumption of the mobile device for processing the transmission.

公开(公告)号：US10342012B2

公开(公告)日：2019-07-02

申请号：US14940546

申请日：2015-11-13

Applicant: QUALCOMM Incorporated

Inventor： Krishna Kiran Mukkavilli ,  Tingfang Ji ,  Naga Bhushan ,  Joseph Binamira Soriaga ,  John Edward Smee ,  Jing Jiang

IPC: H04J3/00 ,  H04W72/04 ,  H04L5/14 ,  H04W72/12 ,  H04L1/18 ,  H04L5/00

Abstract: Aspects of the present disclosure provide a subframe structure for time division duplex (TDD) carriers that can be entirely self-contained. That is, information transmitted on a TDD carrier may be grouped into subframes, where each subframe provides communication in both directions (e.g., uplink and downlink) in a suitable fashion to enable such communication without needing any further information in another subframe. For example, a single subframe may include scheduling information, data information corresponding to the scheduling information, and acknowledgment information corresponding to the data information.

公开(公告)号：US10313160B2

公开(公告)日：2019-06-04

申请号：US15984241

申请日：2018-05-18

Applicant: QUALCOMM Incorporated

Inventor： Jing Jiang ,  Krishna Kiran Mukkavilli ,  Naga Bhushan ,  Tingfang Ji ,  Joseph Binamira Soriaga ,  Peter Gaal ,  John Edward Smee ,  Alexei Yurievitch Gorokhov

IPC: H04L5/00 ,  H04L25/02 ,  H04W72/04 ,  H04L12/801

Abstract: The disclosure relates in some aspects to techniques for improved channel estimation. For example, a device can specify a pilot structure where pilot density differs over time. As another example, a device can indicate that a pilot from a prior transmission time interval (TTI) can be used for channel estimation. As another example, a device can employ frequency domain physical resource block (PRB) bundling with the bundling information signaling. As yet another example, a device can use an adjustable traffic-to-pilot ratio (TPR) for throughput optimization. Other aspects, embodiments, and features are also discussed and claimed.

公开(公告)号：US10219270B2

公开(公告)日：2019-02-26

申请号：US15176484

申请日：2016-06-08

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Junyi Li ,  Ashwin Sampath ,  Muhammad Nazmul Islam ,  Juergen Cezanne ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04W16/28 ,  H04W56/00 ,  H04W72/08 ,  H04L5/00 ,  H04L5/16

Abstract: Aspects of the present disclosure provided techniques for wireless communications by a base station. An exemplary method generally includes transmitting, on a narrowband region within a wider system bandwidth, a directional primary synchronization signal (DPSS), receiving feedback information from one or more user equipments (UEs) based on the DPSS, wherein the feedback information comprises an indication of a bandwidth capability of a UE that transmitted the feedback information, and allocating resources to the one or more UEs within at least one of the wider system bandwidth or the narrowband region based, at least in part, on the feedback information.

公开(公告)号：US20180331699A1

公开(公告)日：2018-11-15

申请号：US15976676

申请日：2018-05-10

Applicant: QUALCOMM Incorporated

Inventor： Jamie Menjay Lin ,  Krishna Kiran Mukkavilli ,  Gabi Sarkis ,  Peter Pui Lok Ang

IPC: H03M13/13 ,  H04L5/00 ,  H04L1/00

Abstract: Methods, systems, and devices for wireless communication are described. In a new radio (NR) system, a wireless device may encode control information into a codeword using a polar code. The device may prioritize certain information within the codeword due to the time criticalness of that information for processing at a receiving device. For example, information related to frequency allocation may be encoded such that the receiving device may decode the frequency allocation information early in the decoding process. The device may include partial parity checks throughout the codeword, so that the receiving device may test whether the decoded bits for the prioritized information pass a parity check, and may then send these decoded bits for processing before completing decoding of the codeword. In some cases, the device may encode the information to be transmitted using multiple evenized codewords, or using a single consolidated codeword.

公开(公告)号：US10123219B2

公开(公告)日：2018-11-06

申请号：US14996902

申请日：2016-01-15

Applicant: QUALCOMM Incorporated

Inventor： Naga Bhushan ,  Krishna Kiran Mukkavilli ,  Tingfang Ji ,  John Edward Smee ,  Jing Jiang ,  Joseph Binamira Soriaga

IPC: H04W4/00 ,  H04W24/02 ,  H04W72/04 ,  H04L1/00 ,  H04L1/18 ,  H04L5/14 ,  H04L5/00

Abstract: Techniques are described for wireless communication. A first method includes wirelessly communicating at a first device, with a second device, according to a first subframe structure; receiving a subframe truncation parameter from the second device; and terminating the first subframe structure based at least in part on the subframe truncation parameter. The first subframe structure includes a first periodic sequence of downlink transmission time intervals (TTIs) and uplink TTIs. A second method includes wirelessly communicating at a first device, with a second device, according to a parameterized self-contained subframe structure having an interlaced portion and a tail portion; and reducing a delay indicated by a nominal trigger-response delay parameter associated with a downlink TTI, to enable a response message corresponding to the downlink TTI to be transmitted during the tail portion and before termination of the subframe structure.

公开(公告)号：US10116483B2

公开(公告)日：2018-10-30

申请号：US15370266

申请日：2016-12-06

Applicant: QUALCOMM Incorporated

Inventor： Muhammad Nazmul Islam ,  Tao Luo ,  Juergen Cezanne ,  Krishna Kiran Mukkavilli ,  Sundar Subramanian ,  Junyi Li

IPC: H04L27/26 ,  H04L5/00 ,  H04W72/04 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: DM-RS symbols may be inserted in the beginning of a subframe, or in two parts of the subframe. In one aspect, a method, a computer-readable medium, and an apparatus for dynamically conveying DM-RS information are provided. The apparatus may be a base station. The apparatus may determine the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols. The apparatus may transmit the number of the DM-RS symbols and/or the locations within the subframe for transmission of the DM-RS symbols to a UE. In another aspect, a UE may receive the number of DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols from a base station. The UE may decode the DM-RS symbols from the subframe based on the number of the DM-RS symbols and/or the locations within a subframe for transmission of the DM-RS symbols.

公开(公告)号：US10097255B2

公开(公告)日：2018-10-09

申请号：US14959671

申请日：2015-12-04

Applicant: QUALCOMM Incorporated

Inventor： Juergen Cezanne ,  Muhammad Nazmul Islam ,  Krishna Kiran Mukkavilli ,  Sundar Subramanian ,  Junyi Li

IPC: H04W4/00 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02 ,  H04J13/00 ,  H04L27/26

Abstract: Described herein are methods, systems, and apparatus for jointly estimating channel and phase noise in a control symbol. In one example, a method for wireless communication is described that includes inserting a control tone at a first periodicity in a first subcarrier of a control symbol and inserting a pilot tone at a second periodicity in a second subcarrier of the control symbol, the pilot tone being offset from the control tone in the control symbol. The method also includes transmitting the control symbol. In another example, a method for wireless communication is described that includes receiving a control symbol comprising a control tone at a first periodicity, and a pilot tone at a second periodicity, the pilot tone being offset from the control tone in the control symbol. The method also includes performing a phase noise estimation and a channel estimation from the pilot tone.