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    • 3. 发明授权
    • Methods and apparatus for multi-user MIMO transmissions in wireless communication systems
    • 用于无线通信系统中的多用户MIMO传输的方法和装置
    • US09031008B2
    • 2015-05-12
    • US12899362
    • 2010-10-06
    • Young-Han NamJianzhong Zhang
    • Young-Han NamJianzhong Zhang
    • H04W72/04H04K1/10H04L5/00
    • H04B7/0473H04B7/0452H04L5/0023H04L5/0048H04L5/0057H04L5/0091H04W72/042
    • A wireless communication system includes a base station capable of communicating with a plurality of subscriber stations. The base station can transmit control information and data to a subscriber stations. The base station also can identify a set of RS patterns to be used to communicate with the subscriber station, assign a subset of antenna port numbers within the set of RS patterns to the subscriber stations. The base station can indicate the assigned states in a Downlink Control Information (DCI) format transmitted in a Physical Downlink Control Channel (PDCCH). The base station transmits the data using a subset of antenna ports corresponding to the subset of antenna port numbers. The base station also can map reference signals corresponding to the subset of antenna ports according to at least one RS pattern within the set of RS patterns.
    • 无线通信系统包括能够与多个用户站进行通信的基站。 基站可以向用户台发送控制信息和数据。 基站还可以识别要用于与订户站通信的一组RS模式,将RS模式集合内的天线端口号的子集分配给用户站。 基站可以在物理下行链路控制信道(PDCCH)中发送的下行链路控制信息(DCI)格式中指示分配的状态。 基站使用对应于天线端口号的子集的天线端口的子集来发送数据。 基站还可以根据RS模式集合内的至少一个RS模式映射与天线端口子集对应的参考信号。
    • 4. 发明授权
    • Apparatus and method for UE-specific demodulation reference signal scrambling
    • 用于UE特定解调参考信号加扰的装置和方法
    • US08995385B2
    • 2015-03-31
    • US13564469
    • 2012-08-01
    • Young-Han NamJianzhong ZhangJin-Kyu Han
    • Young-Han NamJianzhong ZhangJin-Kyu Han
    • H04L12/26H04W72/12
    • H04W72/1294H04L5/0035H04L5/0051H04L5/0091H04W72/12
    • A user equipment (UE) is configured to communicate with a plurality of base stations in a wireless network. The UE includes a processor that receive a downlink grant scheduling a physical downlink shared channel (PDSCH) for the UE, the downlink grant being transmitted in a physical downlink control channel (PDCCH) or an enhanced physical downlink control channel (ePDCCH). The processor also receives UE-specific demodulation reference signals (UE-RS) provided for demodulation of the PDSCH, wherein the UE-RS are scrambled according to a scrambling sequence initialized with an initialization value cinit. The downlink grant includes a one-bit scrambling identifier (SCID) information field configured to indicate a pair of values comprising a scrambling identifier nSCID and a virtual cell ID Nv-IDcell out of two candidate pairs, the pair of values to be used for determining the initialization value cinit for the UE-RS.
    • 用户设备(UE)被配置为与无线网络中的多个基站进行通信。 UE包括接收下行链路许可调度UE的物理下行链路共享信道(PDSCH)的处理器,下行链路许可在物理下行链路控制信道(PDCCH)或增强物理下行链路控制信道(ePDCCH)中发送。 处理器还接收为解调PDSCH提供的UE专用解调参考信号(UE-RS),其中UE-RS根据以初始化值cinit初始化的加扰序列进行加扰。 下行链路许可包括一个1比特加扰标识符(SCID)信息字段,被配置为指示包括两个候选对中的加扰标识符nSCID和虚拟小区ID Nv-IDcell的一对值,该对值用于确定 UE-RS的初始化值为。
    • 8. 发明授权
    • Cell-specific shifting of reference signals in multi-stream transmissions
    • 参考信号在多流传输中的小区特定移位
    • US08369206B2
    • 2013-02-05
    • US12709347
    • 2010-02-19
    • Young-Han NamJianzhong Zhang
    • Young-Han NamJianzhong Zhang
    • H04J11/00
    • H04L5/0051
    • A base station is provided. The base station comprises a downlink transmit path comprising circuitry configured to transmit a plurality of reference signals in one or more subframes. Each subframe comprises one or more resource blocks. Each resource block comprises S Orthogonal Frequency Division Multiplexing (OFDM) symbols. Each of the S OFDM symbols comprises N subcarriers, and each subcarrier of each OFDM symbol comprises a resource element. The base station further comprises a reference signal allocator configured to allocate the plurality of reference signals to selected resource elements of a resource block, and circularly shift the plurality of reference signals in a time domain of the resource block by an hshift value that is based at least partly upon a cell_ID of the base station.
    • 提供基站。 基站包括下行链路发送路径,其包括经配置以在一个或多个子帧中发送多个参考信号的电路。 每个子帧包括一个或多个资源块。 每个资源块包括S个正交频分复用(OFDM)符号。 每个S OFDM符号包括N个子载波,并且每个OFDM符号的每个子载波包括资源元素。 基站还包括参考信号分配器,其被配置为将多个参考信号分配给资源块的所选择的资源元素,并且将资源块的时域中的多个参考信号循环移位基于基于 至少部分地基于所述基站的小区ID。
    • 9. 发明申请
    • APPARATUS AND METHOD FOR PERIODIC CHANNEL STATE REPORTING IN A WIRELESS NETWORK
    • 无线网络中定期通道状态报告的装置和方法
    • US20120201207A1
    • 2012-08-09
    • US13313831
    • 2011-12-07
    • Lingjia LiuYoung-Han NamJianzhong Zhang
    • Lingjia LiuYoung-Han NamJianzhong Zhang
    • H04W72/04
    • H04L5/0057H04W24/10H04W72/1242
    • Channel State Information (CSI) is reported by a subscriber station to a base station. The CSI is reported periodically for at least two physical uplink control channels (PUCCH). In case of a collision between a report for a first PUCCH and a report for the second PUCCH, each of the report types is partitioned into one of a number of classes, which include: a first class for rank indicator related report types and wideband (WB) W1 report types; a second class for WB report types or WB channel quality indicator report types; and a third class for subband related report types or W1 report types. A priority rule assigns a priority to each of the classes. The CSI feedback reports are transmitted according to the priority rule such that the report type included in a higher class is transmitted and the report type included in the lower class are dropped.
    • 信道状态信息(CSI)由用户站向基站报告。 对于至少两个物理上行链路控制信道(PUCCH)周期性地报告CSI。 在第一PUCCH的报告与第二PUCCH的报告之间发生冲突的情况下,每个报告类型被划分为多个类别中的一个,其包括:用于等级指示符相关报告类型和宽带( WB)W1报告类型; WB报告类型或WB渠道质量指标报告类型的第二类; 和子类相关报告类型或W1报告类型的第三类。 优先级规则为每个类分配优先级。 根据优先级规则发送CSI反馈报告,使得包含在较高类中的报告类型被发送,并且包括在下级中的报告类型被丢弃。
    • 10. 发明授权
    • Method and system for reference signal pattern design
    • 参考信号图案设计方法与系统
    • US08228862B2
    • 2012-07-24
    • US12607682
    • 2009-10-28
    • Young-Han NamJianzhong ZhangShadi Abu-Surra
    • Young-Han NamJianzhong ZhangShadi Abu-Surra
    • H04W72/04H04W72/28H04B7/00
    • H04L5/0007H04L5/0039H04L5/005H04L5/0051
    • A base station comprising an allocator configured to allocate a plurality of dedicated reference (DR) signals to selected resource elements. In the even-numbered time slot in a first resource block, a first group of DR signals are: i) allocated to a first group of adjacent resource elements; and ii) allocated to a second group of adjacent resource elements. In the contiguous odd-numbered time slot in the first resource block, the first group of DR signals are allocated to a third group of adjacent resource elements. In the even-numbered time slot in a second resource block, the first group of adjacent DR signals are allocated to a fourth group of resource elements. In the contiguous odd-numbered time slot in the second resource block, the first group of DR signals are: i) allocated to a fifth group of adjacent resource elements; and ii) allocated to a sixth group of adjacent resource elements.
    • 一种基站,包括分配器,其被配置为向所选择的资源元素分配多个专用参考(DR)信号。 在第一资源块的偶数时隙中,第一组DR信号是:i)分配给第一组相邻资源元素; 和ii)分配给第二组相邻的资源元素。 在第一资源块中连续的奇数时隙中,将第一组DR信号分配给第三组相邻的资源元素。 在第二资源块中的偶数时隙中,第一组相邻DR信号被分配给第四组资源元素。 在第二资源块中的连续奇数时隙中,第一组DR信号是:i)分配给第五组相邻资源元素; 和ii)分配给第六组相邻的资源元素。