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    • 51. 发明申请
    • APERIODIC CHANNEL STATE INFORMATION REQUEST IN WIRELESS COMMUNICATION
    • 无线通信中的APERIODIC CHANNEL状态信息请求
    • US20120076017A1
    • 2012-03-29
    • US13072617
    • 2011-03-25
    • Xiliang LuoXiaoxia ZhangPeter GaalHao XuWanshi ChenJuan MontojoTao Luo
    • Xiliang LuoXiaoxia ZhangPeter GaalHao XuWanshi ChenJuan MontojoTao Luo
    • H04W24/00H04L12/26
    • H04L1/0026H04L1/0027
    • A method, computer program product, and apparatus are provided in which a request for a channel state information (CSI) report is received on a component carrier of a plurality of component carriers. The request indicates a set of component carriers of the plurality of component carriers for which to provide the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is transmitted. A method, computer program product, and apparatus are provided in which a request for a CSI report on a component carrier of a plurality of component carriers is transmitted. The request indicates a set of component carriers of the plurality of component carriers for which to receive the CSI report. In addition, a CSI report including feedback for each of the indicated component carriers in the set of component carriers is received.
    • 提供了一种在多个分量载波的分量载波上接收对信道状态信息(CSI)报告的请求的方法,计算机程序产品和装置。 该请求指示为其提供CSI报告的多个分量载波的一组分量载波。 此外,发送包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。 提供一种方法,计算机程序产品和装置,其中发送对多个分量载波的分量载波上的CSI报告的请求。 该请求指示用于接收CSI报告的多个分量载波的一组分量载波。 此外,接收包括针对分量载波集合中的每个指示分量载波的反馈的CSI报告。
    • 52. 发明授权
    • Efficient zadoff-chu sequence generation
    • 高效的zadoff-chu序列生成
    • US08374072B2
    • 2013-02-12
    • US12755998
    • 2010-04-07
    • Peter GaalRobert J. FuchsYongbin WeiKe LiuHanfang PanDurga Prasad MalladiDaniel T. Macek
    • Peter GaalRobert J. FuchsYongbin WeiKe LiuHanfang PanDurga Prasad MalladiDaniel T. Macek
    • H04J11/00H04W4/00
    • H04J13/0059H04J13/14
    • Efficient apparatus and method for Zadoff-Chu (“Chu”) sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than N log 2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.
    • 用于Zadoff-Chu(Chu)序列生成的高效装置和方法避免了常规二次生成公式的附加处理和硬件复杂性,随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换(DFT)。 在无线通信系统(例如,长期演进(Long Term Evolution,LTE)系统)中,尤其在上行链路(UL)中广泛使用了Chu序列。 由于单载波操作模式,原则上发送Chu序列涉及一系列生成该序列,执行DFT操作,然后进行IFFT操作。 假设序列长度为N,则初始序列生成需要2N次乘法,并且DFT需要多于N个log 2(N)乘法。 鉴于Chu序列的频繁处理,这将代表一个复杂的负担。 除了可能计算某些初始参数之外,本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。
    • 53. 发明申请
    • HSDPA SYSTEM WITH REDUCED INTER-USER INTERFERENCE
    • HSDPA系统具有减少的用户间干扰
    • US20100202414A1
    • 2010-08-12
    • US12768492
    • 2010-04-27
    • Durga Prasad MalladiPeter GaalYongbin Wei
    • Durga Prasad MalladiPeter GaalYongbin Wei
    • H04W72/04G06F11/08H03M13/00
    • H04L1/0029H04L1/0003H04L1/0025
    • In a wireless network (100) with HSDPA-enabled user equipment devices (130), the base transceiver station (120) transmits to each HSDPA-enabled UE information regarding allocation of HSDPA codes and associated modulation techniques for other HSDPA-enabled UEs. Using this additional control information, each UE configures decision feedback filter of its equalizer to reduce inter-user interference. The additional control information may be transmitted in a packet (300) that includes a CRC portion (310) with the packet's CRC masked by a common ID, which is known to the HSDPA-enabled UEs. To reduce the number of bits needed to transmit the additional control information, the HSDPA codes used with a particular modulation technique are allocated consecutively. For each modulation technique, only the beginning code and the total number of codes need be known to the UEs. The number of codes used with each modulation technique may be allowed to change once in several TTIs.
    • 在具有支持HSDPA的用户设备(130)的无线网络(100)中,基站收发器(120)向每个支持HSDPA的UE发送关于其他支持HSDPA的UE的HSDPA代码分配和相关调制技术的信息。 使用该附加控制信息,每个UE配置其均衡器的判决反馈滤波器以减少用户间干扰。 附加控制信息可以在包括CRC部分(310)的分组(300)中发送,其中分组的CRC被公共ID掩蔽,这是启用HSDPA的UE已知的。 为了减少发送附加控制信息所需的位数,连续分配与特定调制技术一起使用的HSDPA码。 对于每个调制技术,只有起始码和代码总数需要为UE所知。 可以允许每个调制技术使用的代码数量在几个TTI中改变一次。
    • 56. 发明授权
    • Efficient system identification schemes for communication systems
    • 通信系统的高效系统识别方案
    • US09119132B2
    • 2015-08-25
    • US12248303
    • 2008-10-09
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • Tao LuoDurga Prasad MalladiJuan MontojoPeter GaalSandip Sarkar
    • H04J3/06H04W48/12H04J11/00H04L27/26
    • H04W48/12H04J11/0069H04L27/2602H04W56/001
    • Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
    • 描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。 例如,无线电帧中的PSC和SSC的相对位置可以是参数的函数。 此外,可以基于参数来选择用于生成PSC的PSC序列。 此外,从无线电帧中包含或排除PSC可以是参数的函数。 另外或替代地,伪随机序列映射(例如,到小区ID,音调位置)可以是参数的函数。 示例性参数可以是基站是TDD或FDD系统的一部分,无线电帧是使用FS1还是FS2,基站是与宏还是毫微微小区相关联,还是基站是否与 单播或多播系统。
    • 59. 发明申请
    • UPLINK CONTROL AND DATA TRANSMISSION IN A MIXED SINGLE AND MULTIPLE CARRIER NETWORK
    • 混合单个和多个运营商网络中的上拉式控制和数据传输
    • US20110176498A1
    • 2011-07-21
    • US12841050
    • 2010-07-21
    • Juan MontojoPeter GaalDurga Prasad Malladi
    • Juan MontojoPeter GaalDurga Prasad Malladi
    • H04W72/04
    • H04W72/1242H04L5/0044H04L5/0053H04W52/146H04W52/16H04W52/281H04W52/325H04W52/367H04W72/02H04W72/048H04W72/1284
    • Providing for mixed single carrier and multi-carrier uplink transmission in a wireless communication environment is described herein. By way of example, a network is provided that can identify uplink capabilities or restrictions of respective devices of a mixed population of mobile devices, and schedule single carrier or multi-carrier transmissions accordingly. In some aspects, different subsets of multi-carrier transmission can be given priority over other subsets. Based on the priority, the network can schedule/modify relative transmit powers for respective subsets, accommodate power constraints of higher level networking protocols, and optionally give priority to one or more of the distinct transmissions. In addition, priority can be given to respective subsets of the multi-carrier transmission, to ensure high quality or reliability for important transmissions. Thus, provided is an integrated network that accommodates a powerful mix of single carrier and multi-carrier services for a mixed population of mobile devices.
    • 本文描述了在无线通信环境中提供混合单载波和多载波上行链路传输。 作为示例,提供了可以识别移动设备的混合群体的相应设备的上行链路能力或限制的网络,并且相应地调度单载波或多载波传输。 在一些方面,可以将不同的多载波传输子集优先于其他子集。 基于优先级,网络可以调度/修改相应子集的相对发射功率,适应较高级联网协议的功率约束,并且可选地优先考虑一个或多个不同传输。 此外,可以优先考虑多载波传输的各个子集,以确保重要传输的高质量或可靠性。 因此,提供了一种综合网络,其适应于移动设备的混合群体的单载波和多载波服务的强大组合。