公开(公告)号：US20150117389A1

公开(公告)日：2015-04-30

申请号：US14593382

申请日：2015-01-09

Applicant: QUALCOMM Incorporated

Inventor： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

IPC: H04L5/00

CPC classification number: H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04W72/005 ,  H04W84/04

Abstract: Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols.

Abstract translation: 方面描述了利用专用参考信号来支持网络MIMO，分布式MIMO，协调多点等。 数据调制符号在与发送导频调制符号相同的方向上进行发送。 两个或更多个无线设备可以协调通信，使得相同的导频调制符号和相同的数据调制符号的传输被发送到与无线设备相关联且针对特定移动设备的每个方向在不同方向上的设备。 可以采用簇特定的加扰和/或用户组特定的加扰，并且可以在传送导频调制符号和数据调制符号之前传送扰码。

公开(公告)号：US20140016603A1

公开(公告)日：2014-01-16

申请号：US14027021

申请日：2013-09-13

Applicant: QUALCOMM Incorporated

Inventor： Jilei Hou ,  Juan Montojo ,  Ravi Palanki

IPC: H04B7/02

CPC classification number: H04B7/024 ,  H04L5/0035 ,  H04L5/0048 ,  H04W72/005 ,  H04W84/04

Abstract: Aspects describe utilizing a dedicated reference signal for supporting Network MIMO, distributed MIMO, Coordinated MultiPoint, and the like. A data modulation symbol is transmitting in the same direction as a pilot modulation symbol is transmitted. Two or more wireless devices can coordinate communications such that transmission of the same pilot modulation symbol and the same data modulation symbol are transmitted to a device in different directions, each direction associated with a wireless device and intended for a particular mobile device. Cluster-specific scrambling and/or user-group specific scrambling can be employed and a scrambling code can be communicated prior to transmission of the pilot modulation symbols and data modulation symbols.

Abstract translation: 方面描述了利用专用参考信号来支持网络MIMO，分布式MIMO，协调多点等。 数据调制符号在与发送导频调制符号相同的方向上进行发送。 两个或更多个无线设备可以协调通信，使得相同的导频调制符号和相同的数据调制符号的传输被发送到与无线设备相关联且针对特定移动设备的每个方向在不同方向上的设备。 可以采用簇特定的加扰和/或用户组特定的加扰，并且可以在传送导频调制符号和数据调制符号之前传送扰码。

公开(公告)号：US20130229935A1

公开(公告)日：2013-09-05

申请号：US13864860

申请日：2013-04-17

Applicant: QUALCOMM INCORPORATED

Inventor： Alexei Y. Gorokhov ,  Siddhartha Mallik ,  Alan Barbieri ,  Jilei Hou

IPC: H04W24/02

CPC classification number: H04W24/02 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/006 ,  H04L5/0073 ,  H04L5/0091

Abstract: Systems and methodologies are described that facilitate cooperation strategy selection for a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, one or more nodes in a communication system capable of N-MIMO communication can calculate marginal utilities, projected per-user rates, and/or other parameters corresponding to respective associated users. Based on these calculations, respective network nodes can perform user scheduling and selection, cell scheduling and selection, selection of a cooperation strategy (e.g., coordinated silencing, joint transmission, coordinated beamforming, etc.), and/or other operations to provide cooperative communication for respective users. As further described herein, projected rate calculation for a given user can be adjusted based on processing or channel implementation loss associated with the user, interference nulling capability of the user, or other factors. As additionally described herein, these and/or other parameters can be fed back by respective users to a serving network node and/or mandated via system performance requirements.

Abstract translation: 描述了促进网络多输入多输出（N-MIMO）通信系统的协作策略选择的系统和方法。 如这里所描述的，能够进行N-MIMO通信的通信系统中的一个或多个节点可以计算边际效用，预计的每用户速率和/或对应于各个相关用户的其他参数。 基于这些计算，各个网络节点可以执行用户调度和选择，小区调度和选择，合作策略的选择（例如，协调消隐，联合传输，协调波束形成等）和/或提供协作通信的其他操作 为各个用户。 如本文进一步描述的，可以基于与用户相关联的处理或信道实现损失，用户的干扰归零能力或其他因素来调整给定用户的预计速率计算。 如本文另外描述的，这些和/或其他参数可以由相应的用户反馈到服务网络节点和/或通过系统性能要求强制。

公开(公告)号：US12113615B2

公开(公告)日：2024-10-08

申请号：US18332412

申请日：2023-06-09

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Joseph Binamira Soriaga ,  Jilei Hou

IPC: H04L1/00 ,  H04L43/0823 ,  H04L69/324

CPC classification number: H04L1/0061 ,  H04L1/0057 ,  H04L43/0847 ,  H04L69/324

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.

公开(公告)号：US11777526B2

公开(公告)日：2023-10-03

申请号：US17332847

申请日：2021-05-27

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Chao Wei ,  Jilei Hou

IPC: H03M13/00 ,  H03M13/13 ,  H03M13/09

CPC classification number: H03M13/13 ,  H03M13/09

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for multiplexing dedicated control information for a plurality of users in a single information block and polar coding the information block to produce a polar code block of dedicated control information for transmission over a wireless air interface. The information block may further include group cyclic redundancy check (CRC) information for the information block and individual CRC information for each dedicated control information.

公开(公告)号：US11711163B2

公开(公告)日：2023-07-25

申请号：US16831263

申请日：2020-03-26

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Joseph Binamira Soriaga ,  Jilei Hou

IPC: H04L1/00 ,  H04L43/0823 ,  H04L69/324

CPC classification number: H04L1/0061 ,  H04L1/0057 ,  H04L43/0847 ,  H04L69/324

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.

公开(公告)号：US11601217B2

公开(公告)日：2023-03-07

申请号：US16468210

申请日：2017-06-14

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Joseph Binamira Soriaga ,  Jilei Hou

IPC: H04L1/00 ,  H04L43/0823 ,  H04L69/324

Abstract: Aspects of the disclosure relate to wireless communication systems configured to provide techniques for polar coding control information together with combined cyclic redundancy check (CRC) information. The combined CRC information may include a number of CRC bits selected to jointly decode and verify the control information to reduce the CRC overhead.

公开(公告)号：US11309997B2

公开(公告)日：2022-04-19

申请号：US16874264

申请日：2020-05-14

Applicant: QUALCOMM Incorporated

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

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

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：US11265105B2

公开(公告)日：2022-03-01

申请号：US16464576

申请日：2017-06-02

Applicant: QUALCOMM Incorporated

Inventor： Changlong Xu ,  Jian Li ,  Jilei Hou

IPC: H04L1/00 ,  H04L1/18

Abstract: Methods and apparatuses for wireless communications are described. In an aspect, a method and apparatus may include determining that a second transmission is decoded incorrectly in response to a first received indication on a communication channel. The method and apparatus may further include transmitting, on the communication channel, a third transmission and a fourth transmission based on a determination that the second transmission is decoded incorrectly, wherein the third transmission corresponds to a coded bit set of the third transmission including a first group of information bits of a coded bit set of a first transmission and a second group of information bits of a coded bit set of the second transmission and the fourth transmission corresponds to a coded bit set of the fourth transmission including a combination of the coded bit sets of the first transmission, the second transmission, and the third transmission.

公开(公告)号：US11218177B2

公开(公告)日：2022-01-04

申请号：US16317395

申请日：2017-06-12

Applicant: QUALCOMM Incorporated

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

IPC: H03M13/00 ,  H03M13/13 ,  H03M11/26

Abstract: Various aspects of the disclosure relate to rate matching techniques for block encoding. In some aspects, a decision regarding whether to use repetition-based rate matching or puncture-based rate matching is made based on a block size of information being encoded. In some aspects, repetition-based rate matching uses a bit-reversal permutation technique.