公开(公告)号：US20100107028A1

公开(公告)日：2010-04-29

申请号：US12580128

申请日：2009-10-15

申请人： Alexei Y. Gorokhov ,  Jilei Hou

发明人： Alexei Y. Gorokhov ,  Jilei Hou

IPC分类号： H04L1/18 ,  G06F11/14

CPC分类号： H04L1/1812 ,  H04L5/0035

摘要： Systems and methodologies are described herein that facilitate Hybrid Automatic Repeat Request (H-ARQ) scheduling and coordination in a wireless communication system. As described herein, a network node capable of cooperation with other nodes for communication to respective users can coordinate a cooperation strategy across nodes based on a H-ARQ protocol to be utilized for a given user. In the case of a synchronous H-ARQ protocol, communication can be scheduled as described herein such that initial transmissions to a user are conducted cooperatively and re-transmissions are conducted without inter-node cooperation. In the case of a H-ARQ protocol utilizing persistent assignments, transmission intervals can be calculated and utilized based on application latency requirements, backhaul link latency, or other factors. In the case of an asynchronous H-ARQ protocol, repeat transmissions can be coordinated in a similar manner to initial transmissions or conducted without inter-node cooperation based on latency sensitivity of an associated application.

摘要翻译： 本文描述了促进无线通信系统中的混合自动重传请求（H-ARQ）调度和协调的系统和方法。 如本文所述，能够与其他节点协作以便与相应用户进行通信的网络节点可以基于要给定用户使用的H-ARQ协议来协调跨节点的协作策略。 在同步H-ARQ协议的情况下，可以如本文所述来调度通信，使得对用户的初始传输进行协作地进行，并且在不进行节点间协作的情况下进行重传。 在使用持久分配的H-ARQ协议的情况下，可以基于应用等待时间要求，回程链路延迟等因素来计算和利用传输间隔。 在异步H-ARQ协议的情况下，可以以与初始传输相似的方式来协调重复传输，或者基于相关联的应用的延迟敏感度进行节点间协作。

公开(公告)号：US20090252201A1

公开(公告)日：2009-10-08

申请号：US12484572

申请日：2009-06-15

申请人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

发明人： John Edward Smee ,  Jilei Hou ,  Roberto Padovani ,  Peter John Black ,  Kenneth D. Easton

IPC分类号： H04B1/707 ,  H04B1/10

CPC分类号： H04B1/7107 ,  H04B1/71075 ,  H04B2201/70701 ,  H04L25/0224 ,  H04W52/12

摘要： Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.

摘要翻译： 通信接收机中广义导频干扰消除技术。 在示例性实施例中，在初次首次通过导频消除之后，从后业务消除信号中消除残余导频。 剩余导频消除是通过将先前存储在存储器中的首次通过取消的导频返回到业务后消除信号来实现的，并对所得到的信号进行导频过滤以产生改进的导频干扰估计。 在替代示例性实施例中，可以应用任意数量的迭代来通过在存储器中连续地存储每个产生的导频干扰估计来生成导频干扰估计。

公开(公告)号：US11177862B2

公开(公告)日：2021-11-16

申请号：US16088285

申请日：2017-05-10

申请人： QUALCOMM Incorporated ,  Chao Wei ,  Yu Zhang ,  Bo Chen ,  Jilei Hou

发明人： Chao Wei ,  Yu Zhang ,  Bo Chen ,  Jilei Hou

IPC分类号： H04W4/00 ,  H04B7/0452 ,  H04B7/0417 ,  H04B7/0456 ,  H04B7/06 ,  H04L5/00

摘要： A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.

公开(公告)号：US11171672B2

公开(公告)日：2021-11-09

申请号：US16471388

申请日：2018-01-16

申请人： Jian Li ,  Changlong Xu ,  Chao Wei ,  Jilei Hou ,  Jing Jiang ,  QUALCOMM Incorporated

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

IPC分类号： H03M13/35 ,  H03M7/30 ,  H03M13/09 ,  H03M13/13 ,  H03M13/29 ,  H04L1/00

摘要： Certain aspects of the present disclosure generally relate to wireless communications and, more particularly, to methods and apparatus for dynamic frozen polar codes, for example, for control channels. An exemplary method may be performed at the encoder. The method generally includes encoding a stream of bits using a polar code. The encoding includes selecting a first set of channel indices for encoding information bits. The encoding includes selecting a second set of the channel indices smaller than a channel index for a first information bit for encoding fixed frozen bits. The encoding includes selecting remaining channel indices for dynamic frozen (PCF) bits having values based on one or more of the information bits. The method includes transmitting the encoded stream of bits.

公开(公告)号：US10944517B2

公开(公告)日：2021-03-09

申请号：US16078480

申请日：2016-11-04

申请人： Jian Li ,  Changlong Xu ,  Jilei Hou ,  Neng Wang ,  Chao Wei ,  QUALCOMM Incorporated

发明人： Jian Li ,  Changlong Xu ,  Jilei Hou ,  Neng Wang ,  Chao Wei

IPC分类号： H04L1/18 ,  H03M13/13 ,  H03M13/29 ,  H04L1/00 ,  H04L1/20 ,  H03M13/00 ,  H04W72/04

摘要： For communication utilizing polar codes, a hybrid automatic repeat request algorithm utilizing incremental redundancy (HARQ-IR) may provide increased throughput by including new data, not based on an original transmission, in a HARQ retransmission. The number of retransmitted bits and new information bits in each HARQ retransmission may be controlled in order to manage a tradeoff between increased throughput and a decreased block error rate (BLER).

公开(公告)号：US20200100214A1

公开(公告)日：2020-03-26

申请号：US16467454

申请日：2018-01-24

申请人： Chao WEI ,  Jilei HOU ,  Changlong XU ,  Jian LI ,  Qualcomm Incorporated

发明人： Chao Wei ,  Changlong Xu ,  Jilei Hou ,  Jian Li

IPC分类号： H04W72/00 ,  H04W56/00 ,  H04L1/00 ,  H04L1/18

摘要： Methods, systems, and devices for wireless communication are described. In order to exchange data over a given wireless communication network, a wireless device may first perform a cell acquisition procedure (e.g., to determine cell-specific information such as timing and frequency offsets, bandwidth, control channel formatting, etc.). In some systems, aspects of the timing information may be conveyed with scrambling codes applied to a master information block (MIB). Physical broadcast channel (PBCH) payloads, including MIB transmissions, may be jointly encoded with synchronization signal indices. Bursts of MIB transmissions may thus be decoded without blind decoding while maintaining error protection and low latency that may be necessary to obtain critical system information within the MIB.

公开(公告)号：US09986501B2

公开(公告)日：2018-05-29

申请号：US14782300

申请日：2013-04-09

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

发明人： Minghai Feng ,  Neng Wang ,  Chao Wei ,  Jilei Hou

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

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

摘要： 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：US09554338B2

公开(公告)日：2017-01-24

申请号：US13398249

申请日：2012-02-16

申请人： Haitong Sun ,  Pavan Kumar Vitthaladevuni ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Bibhu Prasad Mohanty

发明人： Haitong Sun ,  Pavan Kumar Vitthaladevuni ,  Sharad Deepak Sambhwani ,  Jilei Hou ,  Bibhu Prasad Mohanty

IPC分类号： H04W52/24 ,  H04W52/40 ,  H04W52/28 ,  H04W52/14 ,  H04W52/20 ,  H04W52/36 ,  H04W52/48

CPC分类号： H04W52/244 ,  H04W52/146 ,  H04W52/20 ,  H04W52/242 ,  H04W52/286 ,  H04W52/362 ,  H04W52/367 ,  H04W52/40 ,  H04W52/48

摘要： A method and system for improving the reception of uplink transmissions in a heterogeneous wireless communication system includes a high-power node such as a macro-cell and a low-power node such as a femto-cell or pico-cell. To address an uplink imbalance where a nearby low-power node power controls a UE such that uplink transmissions of an HSDPA control channel are poorly received at the serving cell, an RNC can instruct the UE to boost its uplink transmit power, remove the UE from soft handover, or disable power control of the UE by the low-power node. To address inter-cell interference, the RNC can limit the UE transmit power and/or enable the victim cell to suppress the interference. Further, a common control channel can be used to power control UEs outside of the convention set of UEs available for power control.

摘要翻译： 用于改善异构无线通信系统中的上行链路传输的接收的方法和系统包括大功率节点，例如宏小区和诸如毫微微小区或微微小区的低功率节点。 为了解决上行链路不平衡，其中附近的低功率节点功率控制UE，使得服务小区处的HSDPA控制信道的上行链路传输不良，RNC可以指示UE提升其上行链路发射功率，将UE从 软切换，或者由低功率节点禁用UE的功率控制。 为了解决小区间干扰，RNC可以限制UE的发射功率和/或使受害小区能够抑制干扰。 此外，可以使用公共控制信道来为可用于功率控制的UE的规定集合外的UE供电。

公开(公告)号：US09294160B2

公开(公告)日：2016-03-22

申请号：US12535972

申请日：2009-08-05

申请人： Jilei Hou ,  Juan Montojo

发明人： Jilei Hou ,  Juan Montojo

IPC分类号： H04B1/00 ,  H04B15/00 ,  H04B7/02 ,  H04B7/04 ,  H04W72/00 ,  H04B7/06

CPC分类号： H04B7/024 ,  H04B7/0452 ,  H04B7/0626 ,  H04B7/0632

摘要： Techniques for supporting distributed MIMO are described. For multi-user distributed MIMO, a cell directs its transmit power toward a UE while reducing interference to UE(s) in neighbor cell(s). For single-user distributed MIMO, multiple cells concurrently send transmissions to a UE. In an aspect, a UE sends channel estimates for serving and non-serving cells to support multi-user distributed MIMO. Each cell may use the channel estimates to select UEs for data transmission and determine precoding vectors to use for data transmission to the selected UEs. In another aspect, a UE sends CQI information for serving and non-serving cells to support single-user distributed MIMO. Each cell may use the CQI information to select UEs for data transmission and determine modulation and coding schemes to use for the selected UEs. In yet another aspect, a UE determines CQI information for a serving cell by taking into account interference nulling by non-serving cells.

摘要翻译： 描述了支持分布式MIMO的技术。 对于多用户分布式MIMO，小区将其发射功率定向到UE，同时减少对相邻小区中的UE的干扰。 对于单用户分布式MIMO，多个小区同时向UE发送传输。 在一方面，UE为服务小区和非服务小区发送信道估计以支持多用户分布式MIMO。 每个小区可以使用信道估计来选择用于数据传输的UE，并且确定用于向选择的UE进行数据传输的预编码向量。 另一方面，UE发送用于服务小区和非服务小区的CQI信息，以支持单用户分布式MIMO。 每个小区可以使用CQI信息来选择用于数据传输的UE，并确定用于所选择的UE的调制和编码方案。 在另一方面，UE通过考虑非服务小区的干扰归零来确定服务小区的CQI信息。

公开(公告)号：US09215648B2

公开(公告)日：2015-12-15

申请号：US13511998

申请日：2011-06-17

申请人： Aamod Dinkar Khandekar ,  Jilei Hou ,  Qingxin Chen ,  Xipeng Zhu ,  Jianqiang Zhang

发明人： Aamod Dinkar Khandekar ,  Jilei Hou ,  Qingxin Chen ,  Xipeng Zhu ,  Jianqiang Zhang

IPC分类号： H04W48/16 ,  H04W56/00 ,  H04W36/00 ,  H04B1/7073 ,  H04J11/00 ,  H04W88/06 ,  H04B1/707

CPC分类号： H04W48/16 ,  H04B1/7073 ,  H04B2001/70724 ,  H04J11/0083 ,  H04W36/0011 ,  H04W36/0055 ,  H04W36/0061 ,  H04W36/0083 ,  H04W56/001 ,  H04W88/06

摘要： Aspects of radio access technology searching include apparatus and methods for obtaining relative synchronization information between a first radio access technology and a second radio access technology, and determining a time location of a pilot signal of the second radio access technology based on the relative synchronization information. Further aspects include searching for the pilot signal of the second radio access technology using the determined time location. Other aspects further include determining a measurement gap duration and measurement gap location based on the relative synchronization information so as to encompass a pilot of the second radio access technology.

摘要翻译： 无线电接入技术搜索的方面包括用于获得第一无线电接入技术和第二无线接入技术之间的相对同步信息的装置和方法，以及基于相对同步信息确定第二无线接入技术的导频信号的时间位置。 另外的方面包括使用确定的时间位置来搜索第二无线电接入技术的导频信号。 其他方面还包括基于相对同步信息来确定测量间隙持续时间和测量间隙位置，以便包含第二无线电接入技术的导频。