公开(公告)号：US10757702B2

公开(公告)日：2020-08-25

申请号：US15521520

申请日：2015-07-03

Applicant: QUALCOMM INCORPORATED ,  Neng Wang ,  Mingxi Fan ,  Naga Bhushan

Inventor： Neng Wang ,  Mingxi Fan ,  Naga Bhushan

IPC: H04W72/04 ,  H04L5/00 ,  H04W92/18 ,  H04W52/46 ,  H04B7/26 ,  H04B7/026 ,  H04W52/42 ,  H04W88/04 ,  H04W24/10 ,  H04B7/155 ,  H04W52/22 ,  H04W72/00

Abstract: Certain aspects of the present disclosure relate to techniques for managing resources for cooperative uplink transmission. A base station may determine different groups for a plurality of user equipments (UEs) participating in cooperative uplink transmission, and transmit mode configurations indicating whether or not UEs in each group are configured to transmit data as a data source or to relay data received from another UE configured to transmit data as a data source. A UE may participate, with one or more other UEs, in cooperative uplink transmission to the base station, wherein each UE belongs to a group. The UE may determine, for a transmission time interval (TTI), at least one operation to perform for the cooperative uplink transmission based, at least in part, on a group number of a group to which the UE belongs and an index of the TTI.

公开(公告)号：US10749633B2

公开(公告)日：2020-08-18

申请号：US16065077

申请日：2016-08-17

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Jian Li ,  Jilei Hou ,  Neng Wang

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

Abstract: Polar codes may be generated with a variable block length utilizing puncturing. Some puncturing schemes consider punctured bits as unknown bits, and set the log likelihood ratio (LLR) for those bits to zero; while other puncturing schemes consider punctured bits as known bits, and set the LLR for those bits to infinity. Each of these puncturing schemes has been observed to provide benefits over the other under different circumstances, especially corresponding to different coding rates or different signal to noise ratio (SNR). According to aspects of the present disclosure, both puncturing schemes are compared, and the puncturing scheme resulting in the better performance is utilized for transmission.

公开(公告)号：US10341896B2

公开(公告)日：2019-07-02

申请号：US15831056

申请日：2017-12-04

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Neng Wang ,  Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Jilei Hou

IPC: H04W24/10 ,  H04L5/14 ,  H04L29/08 ,  H04W72/04 ,  H04W76/27 ,  H04L5/00 ,  H04L1/00 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

公开(公告)号：US10244518B2

公开(公告)日：2019-03-26

申请号：US14905929

申请日：2014-07-14

Applicant: QUALCOMM Incorporated

Inventor： Wanshi Chen ,  Hao Xu ,  Peter Gaal ,  Neng Wang ,  Chao Wei ,  Minghai Feng

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/28 ,  H04L5/14

Abstract: Aspects of the present disclosure relate to techniques for dynamic indication of Time Division Duplex (TDD) Uplink (UL)/Downlink (DL) subframe configuration to User Equipments. A base station may identify one or more anchor subframes and one or more non-anchor subframes in a frame. The base station may dynamically change a UL/DL configuration of the frame used for communicating with a plurality of User Equipments (UEs) and signal the changed configuration using a common downlink control channel capable of being interpreted by the plurality of UEs in at least one of the one or more anchor subframes of the frame.

公开(公告)号：US10111188B2

公开(公告)日：2018-10-23

申请号：US14781159

申请日：2014-05-09

Applicant: QUALCOMM Incorporated

Inventor： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

IPC: H04W52/54 ,  H04L5/14 ,  H04W52/14 ,  H04W52/24 ,  H04W52/10

Abstract: Methods, systems, and-devices are described for interference mitigation in a time-division duplex(TDD)wireless communication system. First and second subframe types may be identified for TDD subframes to be transmitted using the system. Different power control parameters associated with each subframe type may be identified based on transmission directions in neighboring cells for the particular subframes. One or more TDD subframes to be transmitted may be identified as a first or second subframe type, and power control may be applied to the transmitted subframes according the power control parameter associated with the subframe type. The identification of subframes and power control parameters to be applied to each type of subframe may be transmitted, for example, to a user equipment(UE). The information may be transmitted to a UE, for example, via radio resource control(RRC)signaling or via a physical layer control channel.

公开(公告)号：US10009904B2

公开(公告)日：2018-06-26

申请号：US14404437

申请日：2013-05-24

Applicant: QUALCOMM INCORPORATED

Inventor： Neng Wang ,  Jilei Hou ,  Jiming Guo ,  Minghai Feng

IPC: H04W4/00 ,  H04W72/08 ,  H04W72/12 ,  H04W52/50 ,  H04B17/327 ,  H04W72/04 ,  H04W52/24 ,  H04B17/309

CPC classification number: H04W72/082 ,  H04B17/309 ,  H04B17/327 ,  H04W52/242 ,  H04W52/244 ,  H04W52/50 ,  H04W72/0406 ,  H04W72/1226

Abstract: Interference mitigation solutions are disclosed for interference experienced based on asymmetric uplink (UL)/downlink (DL) slot configuration. The aggressor/victim network entities are identified using either measurement or static/semi-static means, such that the victim network entities that may be impacted by interference from aggressor network entity transmissions are identified. Inter Cell Interference Coordination (ICIC) mechanisms are extended to negotiate and address scheduling that intelligently mitigates interference that occurs in the colliding slots.

公开(公告)号：US10009164B2

公开(公告)日：2018-06-26

申请号：US14164907

申请日：2013-01-28

Applicant: QUALCOMM Incorporated

Inventor： Jilei Hou ,  Minghai Feng ,  Neng Wang ,  Chao Wei

IPC: H04L5/14 ,  H04L5/00 ,  H04B1/04 ,  H04W72/04 ,  H04W28/18

CPC classification number: H04L5/14 ,  H04B1/04 ,  H04L5/0091 ,  H04W28/18 ,  H04W72/0406

Abstract: In aspects, methods and apparatus for utilizing a reconfiguration timer for updating TDD configuration are provided. Certain aspects of the present disclosure propose methods and apparatus for improving system performance while using adaptive uplink-downlink reconfiguration in a time division duplex (TDD) system. For certain aspects, a reconfiguration timer may be utilized along with a signaling scheme, in order to enjoy benefits of the adaptive uplink-downlink reconfiguration with minimum signaling overhead.

公开(公告)号：US09872193B2

公开(公告)日：2018-01-16

申请号：US14913889

申请日：2014-09-22

Applicant: QUALCOMM Incorporated

Inventor： Peng Cheng ,  Neng Wang ,  Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu ,  Jilei Hou

IPC: H04W24/10 ,  H04L5/14 ,  H04L29/08 ,  H04W72/04 ,  H04W76/04 ,  H04W88/02 ,  H04W88/08 ,  H04L5/00

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0057 ,  H04L5/14 ,  H04L5/1469 ,  H04L29/08018 ,  H04W72/0413 ,  H04W72/042 ,  H04W72/0446 ,  H04W76/27 ,  H04W88/02 ,  H04W88/08

Abstract: Methods, systems, and devices are described for providing periodic CSI reports and/or aperiodic CSI reports to provide CSI for both anchor and non-anchor TDD subframes in eIMTA. Periodic CSI reports may be provided based on a reference configuration, and aperiodic CSI reports may be provided based on a time of reception of a CSI request and a reference configuration. A UE may determine to report anchor or non-anchor CSI through explicit or implicit signaling. Aperiodic CSI may be used for transmission of anchor subframe CSI reports and periodic CSI may be used for transmission of non-anchor subframe CSI reports, or aperiodic CSI may be used for transmission of non-anchor subframe CSI reports and periodic CSI may be used for transmission of anchor subframe CSI reports. A determination of the reference subframe for aperiodic CSI estimation may be based on a time of receipt of an aperiodic CSI request.

公开(公告)号：US20160173180A1

公开(公告)日：2016-06-16

申请号：US14889108

申请日：2014-06-12

Applicant: Peng CHENG ,  Chao WEI ,  Neng WANG ,  Jilei HOU ,  QUALCOMM INCORPORATED

Inventor： Peng Cheng ,  Chao Wei ,  Neng Wang ,  Jilei Hou

IPC: H04B7/04 ,  H04L27/26

CPC classification number: H04B7/0478 ,  H04B7/0417 ,  H04B7/0469 ,  H04B7/0617 ,  H04L27/2628

Abstract: The present disclosure relates to systems and methods for a two-dimensional discrete Fourier transform based codebook for elevation beamforming. A two-dimensional discrete Fourier transform based codebook is determined for elevation beamforming. The codebook supports single stream codewords and multistream codewords. The two-dimensional discrete Fourier transform based codebook is generated by stacking the columns of the matrix product of two discrete Fourier transform codebook matrices. The codebook size may be flexibly designed based on required beam resolution in azimuth and elevation. A best codebook index is selected from the generated two-dimensional discrete Fourier transform based codebook. The selected codebook index is provided in a channel state information report. The channel state information report is transmitted to a base station.

Abstract translation: 本公开涉及用于仰角波束成形的基于二维离散傅里叶变换的码本的系统和方法。 基于二维离散傅里叶变换的码本被确定为仰角波束成形。 码本支持单流码字和多码流码字。 基于二维离散傅里叶变换的码本通过堆叠两个离散付里叶变换码本矩阵的矩阵乘积的列来生成。 可以基于方位角和高程中所需的光束分辨率灵活地设计码本大小。 从生成的基于二维离散傅立叶变换的码本中选择最佳码本索引。 所选码本索引在信道状态信息报告中提供。 信道状态信息报告被发送到基站。

公开(公告)号：US20160029396A1

公开(公告)日：2016-01-28

申请号：US14775335

申请日：2014-04-09

Applicant: QUALCOMM INCORPORATED

Inventor： Minghai FENG ,  Neng Wang ,  Chao WEI ,  Jilei HOU

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

Abstract: Certain aspects of the present disclosure relate to methods and apparatus for measuring and mitigating interference. Such interference may include base station to base station (eNB to eNB) interference and/or UE to UE interference. A base station may determine a first subframe configuration for the base station and a second subframe configuration for one or more other base stations, wherein the first and second subframe configurations have different ratios of uplink to downlink portions. The base station may measure interference caused by the one or more other base stations based on reference signals transmitted in downlink portions of the second subframe configuration.

Abstract translation: 本公开的某些方面涉及用于测量和减轻干扰的方法和装置。 这种干扰可能包括基站到基站（eNB到eNB）的干扰和/或UE到UE的干扰。 基站可以确定用于基站的第一子帧配置和用于一个或多个其他基站的第二子帧配置，其中第一和第二子帧配置具有不同的上行链路与下行链路部分的比率。 基站可以基于在第二子帧配置的下行链路部分中发送的参考信号来测量由一个或多个其他基站引起的干扰。