公开(公告)号：US20200015229A1

公开(公告)日：2020-01-09

申请号：US16457532

申请日：2019-06-28

Applicant: QUALCOMM Incorporated

Inventor： Wei Yang ,  Yi Huang ,  Joseph Binamira Soriaga ,  Gokul Sridharan ,  Jay Kumar Sundararajan ,  Seyedkianoush Hosseini

IPC: H04W72/04

Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a configuration message configuring the UE to communicate coordinated transmissions with multiple transmission reception points (TRPs) using a first coordinated transmission mode of a set of different coordinated transmission modes. The UE may receive, based on the configuration message, downlink control information including at least one indicator and receive a first coordinated transmission communicated in accordance with the first coordinated transmission mode. The UE may transmit, in accordance with a feedback configuration corresponding to the at least one indicator and the first coordinated transmission mode, a feedback message for the first coordinated transmission to at least one of the multiple TRPs.

公开(公告)号：US10440657B2

公开(公告)日：2019-10-08

申请号：US15879322

申请日：2018-01-24

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Hao Xu ,  Wanshi Chen ,  Jing Jiang

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/36 ,  H04W52/32 ,  H04W88/02

Abstract: Aspects of the present disclosure provide techniques for a user equipment (UE) to set uplink power control for a long uplink burst and a short uplink burst. The UE receives uplink power control information including a first set of power control parameters for a long uplink burst and a second set of power control parameters for a short uplink burst with the sets of power control parameters being different from each other. The UE configures uplink power control for the long uplink burst based at least on the first set of power control parameters and the short uplink burst based at least on the second set of power control parameters. The UE sends at least one of a long uplink burst and a short uplink burst based on the corresponding uplink power control and sends at least one uplink power-headroom report for the long uplink burst and short uplink burst.

公开(公告)号：US10397816B2

公开(公告)日：2019-08-27

申请号：US14962530

申请日：2015-12-08

Applicant: QUALCOMM Incorporated

Inventor： Youhan Kim ,  Zhanfeng Jia ,  Srinivas Katar ,  Rahul Malik ,  Jay Kumar Sundararajan ,  Arnaud Meylan ,  Ning Zhang ,  George Cherian

IPC: H04W24/10 ,  H04W48/16 ,  H04W28/16 ,  H04W48/12 ,  H04W48/20

Abstract: Methods, apparatus, and computer-readable media for wireless communication may involve techniques for throughput estimation. An expected air time parameter may be used as a parameter for estimating throughput. The expected air time parameter may be indicative of an estimated air time fraction obtainable for communications using an access point (AP), for example, between a wireless station (STA) and the AP. Either the expected air time parameter or an estimated air time fraction determined (e.g., calculated) from the expected air time parameter may be transmitted from the AP to the STA (or other communication device) to allow the STA (or other communication device) to determine an estimated throughput for communications using the AP.

公开(公告)号：US20190238196A1

公开(公告)日：2019-08-01

申请号：US16261166

申请日：2019-01-29

Applicant: QUALCOMM Incorporated

Inventor： Jing Lei ,  Renqiu Wang ,  Seyong Park ,  Naga Bhushan ,  Jay Kumar Sundararajan ,  Jing Jiang ,  Yi Huang ,  Joseph Binamira Soriaga ,  Tingfang Ji

IPC: H04B7/0456 ,  H04J13/00 ,  H04L27/26 ,  H04B1/69 ,  H04W72/10

CPC classification number: H04B7/0456 ,  H04B1/69 ,  H04B2001/6912 ,  H04J13/0062 ,  H04L27/2607 ,  H04W72/10

Abstract: Methods, systems, and devices for wireless communications are described. A wireless device such as a user equipment (UE) may identify a codebook matrix having a number of rows equal to a first number and a number of columns equal to a second number, the first number equal to a number of UEs supported for communication with a base station, and the second number equal to a sequence length of a set of UE specific signature sequences, where the rows of the codebook matrix comprise a Welch bound equality (WBE) achieving vector set. The UE may identify a UE specific signature sequence based at least in part on a mapping between an identifier associated with the UE to one or more rows of the codebook matrix, and communicate with the base station based at least in part on the UE specific signature sequence.

公开(公告)号：US10285189B2

公开(公告)日：2019-05-07

申请号：US15291626

申请日：2016-10-12

Applicant: QUALCOMM Incorporated

Inventor： Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Jing Jiang ,  Tingfang Ji ,  Alexandros Manolakos ,  Krishna Kiran Mukkavilli

IPC: H04W72/04 ,  H04W74/00 ,  H04W72/12 ,  H04L5/14 ,  H04L25/08 ,  H04L29/06

Abstract: Aspects of the disclosure relate to a configurable subframe structure for use in next generation (e.g., fifth generation or 5G) wireless networks utilizing a time division duplex (TDD) carrier that minimizes interference with adjacent legacy wireless networks. The configurable subframe structure may be configured to produce next generation subframes, each including at least one of a downlink portion or an uplink portion, to substantially align downlink portions with corresponding legacy downlink subframes and/or uplink portions with corresponding legacy uplink subframes.

公开(公告)号：US20190110295A1

公开(公告)日：2019-04-11

申请号：US16131966

申请日：2018-09-14

Applicant: QUALCOMM Incorporated

Inventor： Seyong Park ,  Pinar Sen ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Tingfang Ji ,  Naga Bhushan

IPC: H04W72/04 ,  H04L25/03 ,  H04L1/00 ,  H04L5/00 ,  H04L27/38 ,  H04L27/26

Abstract: The present disclosure describes the generation of long sequences from short sequences to support concurrent transmissions of large numbers of machine-type communication devices operating in a wireless communication system. These long sequences may be assigned to devices so that the devices can use the long sequences scramble their transmissions. The use of such long sequences permits many machine-type communication devices to transmit during the same time and frequency resource.

公开(公告)号：US20180092125A1

公开(公告)日：2018-03-29

申请号：US15462669

申请日：2017-03-17

Applicant: QUALCOMM Incorporated

Inventor： Haitong Sun ,  Jay Kumar Sundararajan ,  Joseph Binamira Soriaga ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Tingfang Ji ,  Wei Zeng

IPC: H04W74/02

CPC classification number: H04W74/02 ,  H04W72/0413 ,  H04W72/1294 ,  H04W74/004

Abstract: Wireless communications systems and methods related to performing hybrid grant-free and grant-based uplink (UL) data transmission. A wireless communication device dynamically selects between a grant-free mode and a grant-based mode based on at least a transmission configuration. The wireless communication device sends a first data packet in the grant-free mode, based on the selecting, using a first UL resource. The wireless communication device sends a second data packet in the grant-based mode, based on the selecting, using a second UL resource allocated to the wireless communication device. Other aspects, embodiments, and features are also claimed and described.

公开(公告)号：US20180027437A1

公开(公告)日：2018-01-25

申请号：US15389337

申请日：2016-12-22

Applicant: QUALCOMM Incorporated

Inventor： Pavan Kumar Vitthaladevuni ,  June Namgoong ,  Joseph Binamira Soriaga ,  Jay Kumar Sundararajan

IPC: H04W24/10 ,  H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04W24/10 ,  H04B17/309 ,  H04B17/318 ,  H04L1/0026 ,  H04L5/0048 ,  H04L5/006 ,  H04L25/0224 ,  H04W52/10 ,  H04W52/146 ,  H04W52/242 ,  H04W52/325 ,  H04W52/343 ,  H04W52/38 ,  H04W52/383 ,  H04W72/0406 ,  H04W72/0446 ,  H04W72/085

Abstract: Aspects of the present disclosure provide for enhanced channel estimation in a wireless communication network. Uplink channel estimation may be enhanced by increasing the uplink transmit power of an uplink reference signal. For example, the uplink transmit power may be increased by multiplying a measured downlink path loss by a predetermined factor to produce an increased downlink path loss and calculating the uplink transmit power based on the increased downlink path loss. Downlink channel estimation may be enhanced by increasing a number of tones on a downlink reference signal assigned to a scheduled entity relative to the number of tones assigned to other scheduled entities.

公开(公告)号：US20170127396A1

公开(公告)日：2017-05-04

申请号：US15086655

申请日：2016-03-31

Applicant: QUALCOMM Incorporated

Inventor： Tao Luo ,  Naga Bhushan ,  Jay Kumar Sundararajan

IPC: H04W72/04 ,  H04L5/14 ,  H04B7/04

CPC classification number: H04W72/044 ,  H04B7/0452 ,  H04L5/0044 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0096 ,  H04L5/14 ,  H04L5/1469

Abstract: Various aspects provide for receiving signaling including information configured to indicate whether to adjust a structure of a time-division duplex (TDD) subframe. Such adjusting may include adjusting a time or subcarrier allocated for a control channel, data, and/or a reference signal, such as a user equipment (UE)-specific reference signal (UERS). The UERS may be time-aligned with a demodulation reference signal (DMRS) of another TDD subframe. The UERS may be utilized for inter-link multi-user multiple-input multiple-output (MU-MIMO) when the UERS is orthogonal to the DMRS. Various other aspects provide for communicating one or more pilot or null tones in a data portion of a first TDD subframe. The one or more pilot or null tones may be used to capture interference from a second TDD subframe communicated by another apparatus. The first TDD subframe may be communicated at least partially concurrent with the second TDD subframe.

公开(公告)号：US09521561B2

公开(公告)日：2016-12-13

申请号：US13802014

申请日：2013-03-13

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Jay Kumar Sundararajan ,  Peerapol Tinnakornsrisuphap ,  Mehmet Yavuz

IPC: H04W28/02 ,  H04W16/32 ,  H04W24/02 ,  H04W28/08 ,  H04L12/803 ,  H04W16/08 ,  H04W16/18

CPC classification number: H04W16/32 ,  H04L47/122 ,  H04W16/08 ,  H04W16/18 ,  H04W24/02 ,  H04W28/0205 ,  H04W28/0289 ,  H04W28/08

Abstract: A UE or mobile entity in a wireless communication may assist network optimization by determining a location uncovered by a wireless network, generate a coverage hole detected message if one or more conditions associated with the uncovered location are satisfied, and determining a time to transmit the coverage hole detected message to a covered wireless network. The covered network may act on the message to add covered in a second network so that the second network covers the UE. In other aspects, a UE or mobile entity may detect cell congestion in a first cell and assist the network in offloading congestion from the congested cell. In other aspects, a UE or mobile entity may detect backhaul congestion on a first cell, and assist in offloading backhaul communication for the first cell via a second cell.

Abstract translation: 无线通信中的UE或移动实体可以通过确定由无线网络未覆盖的位置来帮助网络优化，如果满足与未覆盖位置相关联的一个或多个条件，则生成覆盖孔检测到的消息，并且确定发送覆盖的时间 孔检测到的消息到覆盖的无线网络。 被覆盖的网络可以对在第二网络中覆盖的消息进行操作，使得第二网络覆盖UE。 在其他方面，UE或移动实体可以检测第一小区中的小区拥塞，并帮助网络从拥塞小区中卸载拥塞。 在其他方面，UE或移动实体可以检测第一小区的回程拥塞，并且有助于经由第二小区卸载第一小区的回程通信。