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    • 106. 发明授权
    • Wireless multicast broadcast service methods and apparatus
    • 无线组播广播服务方式和装置
    • US08068465B2
    • 2011-11-29
    • US11590724
    • 2006-10-31
    • Jianzhong ZhangRaja S. BachuZhijun CaiKenneth A. Stewart
    • Jianzhong ZhangRaja S. BachuZhijun CaiKenneth A. Stewart
    • H04B7/216
    • H04W56/0085H04W4/06H04W48/08H04W72/005
    • Embodiments include methods and apparatus associated with wireless multicast and/or broadcast services. A base station (102, FIG. 1) transmits data codes (504, 604, 702, FIGS. 5-7) within a radio frame (300, FIG. 3). The data codes are Code Division Multiple Access (CDMA) data codes, in an embodiment. The base station also transmits a Time Division Multiplexed (TDM) synchronization code (502, 608, 706, FIGS. 5-7), in an embodiment. The base station discontinuously transmits (1004, FIG. 10) a portion of a radio frame slot that is coincident in time with a duration of the TDM synchronization code, in various embodiments. The discontinuously transmitted portion of the radio frame slot may include Transport Format Combination Indicator (TFCI) bits (510, FIG. 5), pilot bits (710, FIG. 7), or data bits (612, FIG. 6), in various embodiments. A base station's transmissions may be synchronous in time and frequency with the transmissions of other base stations.
    • 实施例包括与无线多播和/或广播服务相关联的方法和装置。 基站(图1中的102)在无线电帧(图3中的300)内发送数据代码(504,604,702,图5-7)。 在一个实施例中,数据码是码分多址(CDMA)数据码。 在一个实施例中,基站还发送时分多路复用(TDM)同步码(502,608,706,图5-7)。 在各种实施例中,基站在时间上与TDM同步码的持续时间不一致地发送(1004,图10)一部分无线帧时隙。 无线电帧时隙的不连续发送部分可以包括传输格式组合指示符(TFCI)比特(图5中的510),导频比特(710,图7)或数据比特(612,图6) 实施例。 基站的传输可能与其他基站的传输在时间和频率上同步。
    • 107. 发明申请
    • METHOD AND SYSTEM FOR MAPPING UPLINK CONTROL INFORMATION
    • 用于映射上传控制信息的方法和系统
    • US20110255619A1
    • 2011-10-20
    • US13071284
    • 2011-03-24
    • Young-Han NamJianzhong Zhang
    • Young-Han NamJianzhong Zhang
    • H04L27/28
    • H04L5/0057H04B7/0456H04B7/0486H04L1/0031H04L1/0073H04L1/1671H04L1/1861H04L5/0023H04L5/0026H04L5/0048H04L5/0055H04L25/03929
    • A base station is provided. The base station includes a transmit path circuitry to transmit an uplink grant to a subscriber station, the uplink grant indicating a first modulation and coding scheme (MCS) value for a first codeword transmission and a second MCS value for a second codeword transmission. The base station also includes a receive path circuitry to receive a multiple-input multiple-output (MIMO) uplink subframe from the subscriber station, the MIMO uplink subframe having a first subset of layers used for the first codeword transmission and a second subset of layers used for the second codeword transmission. Acknowledgement/negative acknowledgement (ACK/NACK) information and rank indication (RI) information are mapped onto both the first subset of layers and the second subset of layers. Channel quality information (CQI) is only mapped onto either the first subset of layers or the second subset of layers.
    • 提供基站。 基站包括用于向订户站发送上行链路授权的发送路径电路,所述上行链路许可指示用于第一码字传输的第一调制和编码方案(MCS)值以及用于第二码字传输的第二MCS值。 基站还包括接收路径电路,用于从用户站接收多输入多输出(MIMO)上行链路子帧,MIMO上行链路子帧具有用于第一码字传输的层的第一子集,以及层的第二子集 用于第二码字传输。 确认/否定确认(ACK / NACK)信息和秩指示(RI)信息被映射到层的第一子集和层的第二子集上。 信道质量信息(CQI)仅被映射到层的第一子集或层的第二子集。
    • 109. 发明申请
    • SYSTEMS AND METHODS FOR TRANSMITTING CHANNEL QUALITY INFORMATION IN WIRELESS COMMUNICATION SYSTEMS
    • 在无线通信系统中发送信道质量信息的系统和方法
    • US20110141987A1
    • 2011-06-16
    • US12945585
    • 2010-11-12
    • Young-Han NamJianzhong Zhang
    • Young-Han NamJianzhong Zhang
    • H04W72/04
    • H04W24/08H04L1/0003H04L1/0009H04L1/0026H04L1/0031H04L5/0023H04L5/0048H04L5/0053H04L27/2613H04L27/2626H04W72/042
    • A base station for use in a wireless network capable of communicating with a plurality of mobile stations. The base station transmits to a first mobile station downlink subframes of OFDM symbols. Each downlink subframe comprises a plurality of resource blocks and is associated with a subframe (SF) type that is determined according to whether or not a PDSCH region of a resource block in a downlink subframe includes at least one of: 1) a cell-specific reference signal (CRS) resource element and 2) a channel-state-information reference signal (CSI-RS) resource element. The base station receives from the first mobile station at least one of COI, PMI, modulation scheme, and transport block size and interprets the received at least one of COI, PMI, modulation scheme, and transport block size according to a default SF type used by the first mobile station to determine the at least one of COI, PMI, modulation scheme, and transport block size.
    • 一种用于能够与多个移动站进行通信的无线网络中的基站。 基站向第一移动台发送OFDM符号的下行链路子帧。 每个下行链路子帧包括多个资源块,并且与根据下行链路子帧中的资源块的PDSCH区是否包括以下中的至少一个确定的子帧(SF)类型相关联:1)小区特定 参考信号(CRS)资源元素和2)信道状态信息参考信号(CSI-RS)资源元素。 基站从第一移动台接收COI,PMI,调制方式和传输块大小中的至少一个,并且根据所使用的默认SF类型解释所接收到的COI,PMI,调制方案和传输块大小中的至少一个 由第一移动站确定COI,PMI,调制方案和传输块大小中的至少一个。
    • 110. 发明申请
    • METHOD AND SYSTEM OF MULTI-LAYER BEAMFORMING
    • 多层波束形成方法与系统
    • US20110085503A1
    • 2011-04-14
    • US12899331
    • 2010-10-06
    • Young-Han NamJianzhong Zhang
    • Young-Han NamJianzhong Zhang
    • H04W72/00
    • H04W72/042H04B7/0452H04L5/0023H04L5/0048H04L5/005H04L5/0051
    • A base station includes a reference signal sequence generator configured to generate a reference signal sequence for a reference signal for each of n antenna ports using one initialization seed with n being a positive integer. The initialization seed is defined as: cinit=(└ns/2┘+1)·(2NIDcell+1)·216+NIDgroup, where ns is a first slot number in a subframe, NIDcell is a cell identifier of the base station, and NIDgroup is a group identifier. The base station also includes a transmit path circuitry configured to transmit a downlink grant and the reference signal. In some embodiments, the group identifier NIDgroup is a one-bit group identifier dynamically indicated in a codepoint in the downlink grant transmitted by the base station.
    • 基站包括参考信号序列发生器,其被配置为使用n为正整数的一个初始化种子为n个天线端口中的每一个生成用于参考信号的参考信号序列。 初始化种子定义为:cinit =(└ns/2┘+ 1)·(2NIDcell + 1)·216 + NID组,其中ns是子帧中的第一时隙号,NIDcell是基站的小区标识符, 而NIDgroup是组标识符。 基站还包括被配置为发送下行链路许可和参考信号的发送路径电路。 在一些实施例中,组标识符NID组是在由基站发送的下行链路授权中的代码点中动态地指示的一位组标识符。