公开(公告)号：US10182376B2

公开(公告)日：2019-01-15

申请号：US15109596

申请日：2015-02-10

Applicant: QUALCOMM Incorporated

Inventor： Xipeng Zhu ,  Chao Wei ,  Wanshi Chen ,  Peter Gaal ,  Hao Xu

IPC: H04W36/00 ,  H04L1/18

Abstract: Techniques for handover into eIMTA enabled cells are disclosed. In an aspect, a target cell reconfigures RRC connection with a UE after completed handover to enable eIMTA and/or CoMP for the UE. In another aspect, a target cell includes eIMTA configuration information in a handover command to a UE. In another aspect, the target cell may estimate a virtual cell identity to generate the eIMTA configuration information and delay scheduling transmissions to the UE by flexible subframes until after handover is complete and the correct eIMTA configuration information confirmed by measurement or else corrected by RRC connection reconfiguration. In other aspects, the target cell may determine the correct virtual cell identity before handover, either by measuring SRS of the UE, or by receiving information in a handover request indicating results of CSI-RS measurement, by the UE, of virtual cells of the target cell.

公开(公告)号：US20180278272A1

公开(公告)日：2018-09-27

申请号：US15851303

申请日：2017-12-21

Applicant: QUALCOMM Incorporated

Inventor： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou ,  Jing Jiang

IPC: H03M13/29 ,  H03M13/00

CPC classification number: H03M13/2906 ,  H03M13/152 ,  H03M13/2963 ,  H03M13/6393 ,  H03M13/6561

Abstract: Methods, systems, and devices for wireless communication are described that support channel selection for parity bits in polar coding techniques. In some cases, an encoder or decoder of a wireless device may assign information bits, frozen bits, and parity check bits to polar channels of an encoder or decoder based on reliability metrics. The information bits may initially be assigned and based on a channel index of the first information bit, the parity check bits may be assigned to channels having higher channel indices than the first information bit. After assignment, the bits may be encoded or decoded.

公开(公告)号：US20180198497A1

公开(公告)日：2018-07-12

申请号：US15741196

申请日：2015-08-14

Applicant: QUALCOMM Incorporated

Inventor： Chao Wei ,  Yu Zhang

IPC: H04B7/04 ,  H04B7/06 ,  H04W24/10

CPC classification number: H04B7/0469 ,  H04B7/0478 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04B7/065 ,  H04W24/10

Abstract: Methods, systems, and devices are described for wireless communication. The UE may identify, at a user equipment (UE), a codebook type indicator (CTI) that indicates a codebook among a set of codebooks, such that the codebook may be associated with a two-dimensional antenna port structure of a base station, select a precoding matrix indicator (PMI) based on the CTI, and transmit a channel state information (CSI) report including the PMI. The UE may also receive, at a UE, a first antenna port configuration parameter associated with an antenna port structure of a base station, determine, based on the first antenna port configuration parameter, a second antenna port configuration parameter associated with the antenna port structure, then transmit or receiving data at the UE based on the first antenna port configuration parameter and the second antenna port configuration parameter.

公开(公告)号：US09986501B2

公开(公告)日：2018-05-29

申请号：US14782300

申请日：2013-04-09

Applicant: QUALCOMM INCORPORATED ,  Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

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

IPC: H04W48/20 ,  H04W72/12 ,  H04B7/024 ,  H04B7/06 ,  H04W16/10 ,  H04W74/00 ,  H04J11/00 ,  H04W84/04 ,  H04W84/02 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04W48/20 ,  H04B7/024 ,  H04B7/06 ,  H04B7/0608 ,  H04J11/005 ,  H04W16/10 ,  H04W72/1226 ,  H04W74/002 ,  H04W84/02 ,  H04W84/045 ,  H04W88/02 ,  H04W88/08

Abstract: Methods and apparatus are disclosed for interference management. The interference management is based on dynamic point selection or semi-static point selection. The method includes determining interference at a plurality of network nodes. The method includes selecting a transmission point from the plurality of network nodes for a transmission to at least one mobile entity based on the determined interference.

公开(公告)号：US09961673B2

公开(公告)日：2018-05-01

申请号：US14916173

申请日：2013-11-01

Applicant: QUALCOMM Incorporated

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

IPC: H04W72/04 ,  H04L1/00 ,  H04W72/02 ,  H04L1/18 ,  H04L5/22 ,  H04W72/14

CPC classification number: H04W72/0406 ,  H04L1/00 ,  H04L1/1812 ,  H04L1/1887 ,  H04L5/22 ,  H04W72/02 ,  H04W72/14

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives, by a user equipment (UE) during a first subframe, an indication of a dynamic uplink/downlink (UL/DL) subframe configuration. The apparatus determines an uplink hybrid automatic repeat request (HARQ) timing based on an uplink reference subframe configuration and at least one of the dynamic UL/DL subframe configuration or a downlink reference subframe configuration. The apparatus selects an uplink subframe for communication based on the determined uplink HARQ timing.

公开(公告)号：US20160050002A1

公开(公告)日：2016-02-18

申请号：US14784165

申请日：2013-10-14

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

Inventor： Chao Wei ,  Peng CHENG ,  Jilei HOU

IPC: H04B7/06 ,  H04B7/04 ,  H04W72/04

CPC classification number: H04B7/0617 ,  H04B7/0469 ,  H04B7/0478 ,  H04W72/04 ,  H04W88/02

Abstract: Flexible beamforming is disclosed in which a base station receives feedback from a user equipment (UE), in which the feedback is related to one or more reference signals transmitted by the base station. The base station will obtain a tilt adjustment based, at least in part, on the feedback and generate an elevation precoding vector based using the feed-back. Using the tilt adjustment and elevation precoding vector, the base station may then perform elevation beamforming with an antenna array of the base station for the UE.

Abstract translation: 公开了灵活的波束成形，其中基站从用户设备（UE）接收反馈，其中反馈与由基站发送的一个或多个参考信号有关。 基站将至少部分地基于反馈获得倾斜调整，并且基于反馈生成升高预编码向量。 使用倾斜调整和仰角预编码矢量，基站然后可以执行用于UE的基站的天线阵列的仰角波束成形。