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1. 发明申请

US20100157937A1 Uplink Reference Signal for Time and Frequency Scheduling of Transmissions 审中-公开
公开(公告)号：US20100157937A1
公开(公告)日：2010-06-24
申请号：US12716737
申请日：2010-03-03
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04W72/12
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0039 , H04L5/0053 , H04L47/10
摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.

2. 发明申请

US20100157936A1 Uplink Reference Signal for Time and Frequency Scheduling of Transmissions 审中-公开
标题翻译：传输时间和频率调度的上行链路参考信号
公开(公告)号：US20100157936A1
公开(公告)日：2010-06-24
申请号：US12716715
申请日：2010-03-03
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04W72/04 , H04W72/12
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0039 , H04L5/0053 , H04L47/10
摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.
摘要翻译：提供了一种用于从用户设备（UE）复用参考信号（RS）传输的方法，其中RS具有大于数据信号带宽（分布式RS）的带宽。传输时间间隔（TTI）包括一个或多个子帧，每个子帧包括至少两个RS传输周期和多个数据信号传输周期。在包括TTI的子帧中的至少一个子帧中的至少两个RS传输周期中的至少一个期间，发送分布式RS。在剩余的RS传输周期期间，对于具有数据信号传输的UE，RS带宽与数据信号带宽（本地化RS）基本相同。总系统带宽被划分为连续的非重叠子带宽，称为参考信号复用块（RSMB）。分布式RS的传输发生在RSMB内，不会跨越不同的RSMB。 RSMB的大小和数量可以在时间上重新配置，重新配置周期远远大于TTI持续时间。

3. 发明申请

US20080051125A1 Adaptive Selection of Transmission Parameters for Reference Signals 有权
标题翻译：参考信号传输参数的自适应选择
公开(公告)号：US20080051125A1
公开(公告)日：2008-02-28
申请号：US11839421
申请日：2007-08-15
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04Q7/20
CPC分类号： H04W72/1231 , H04W72/1268
摘要： An embodiment of the present invention uses estimates of delay spreads of transmissions from user equipments (UEs) to a NodeB to determine a set of transmission parameters for the UEs reference signals. In an exemplary embodiment, the transmission parameters for reference signals include cyclic shifts. Thus, embodiments include a set of allocated cyclic shift values that are tailored to the delay spreads. The set of allocated cyclic shift values are used by a corresponding set of UE being served by a NodeB to form references signals. Each UE uses the allocated cyclic shift to form its reference signal by applying the cyclic shift to a modified reference sequence. The modified reference sequence can be generated from a Constant-Amplitude-Zero-Auto Correlation (CAZAC) sequence. The set of allocated cyclic shift values can be updated periodically to account for changes of delay spreads, which can be caused by physical movements of the set of UEs.
摘要翻译：本发明的实施例使用从用户设备（UE）到节点B的传输的延迟扩展的估计来确定用于UE参考信号的一组传输参数。在示例性实施例中，用于参考信号的传输参数包括循环移位。因此，实施例包括针对延迟扩展而定制的一组分配的循环移位值。所分配的循环移位值的集合由由节点B服务的对应的一组UE使用以形成参考信号。每个UE使用分配的循环移位通过将循环移位应用到修改的参考序列来形成其参考信号。修改的参考序列可以从恒幅 - 零相关（CAZAC）序列生成。可以周期性地更新所分配的循环移位值的集合以考虑可由该组UE的物理移动引起的延迟扩展的变化。

4. 发明申请

US20070171995A1 Method and Apparatus for Increasing the Number of Orthogonal Signals Using Block Spreading 有权
标题翻译：使用块传播增加正交信号数量的方法和装置
公开(公告)号：US20070171995A1
公开(公告)日：2007-07-26
申请号：US11627035
申请日：2007-01-25
申请人： Tarik Muharemovic , Aris Papasakellariou , Eko N. Onggosanusi
发明人： Tarik Muharemovic , Aris Papasakellariou , Eko N. Onggosanusi
IPC分类号： H04K1/10
CPC分类号： H04J13/22 , H04B1/707 , H04B2201/70701 , H04J13/0055 , H04J13/0062 , H04L1/0026 , H04L1/1607 , H04L5/0007 , H04L5/0016 , H04L5/0048 , H04L5/0053 , H04L25/0228 , H04L27/2613
摘要： Embodiments of the invention apply block spreading to transmitted signals to increase the number orthogonally multiplexed signals. The principle of the disclosed invention can be applied to reference signals, acknowledgement signals, and channel quality indication signals. In any given time interval, the set of transmitted signals is defined by two sequences: the baseline sequence, and the block spreading sequence. Different transmitters using the same baseline sequence can be identified by using different block spreading sequences.
摘要翻译：本发明的实施例将块扩展应用于发送的信号以增加正交多路复用信号的数量。所公开的发明的原理可应用于参考信号，确认信号和信道质量指示信号。在任何给定的时间间隔内，发送信号的集合由两个序列定义：基线序列和块扩展序列。可以通过使用不同的块扩展序列来识别使用相同基线序列的不同发射机。

5. 发明申请

US20070004465A1 Pilot Channel Design for Communication Systems 审中-公开
标题翻译：通信系统导频信道设计
公开(公告)号：US20070004465A1
公开(公告)日：2007-01-04
申请号：US11427682
申请日：2006-06-29
申请人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak , Tarik Muharemovic
发明人： Aris Papasakellariou , Timothy Schmidl , Eko Onggosanusi , Anand Dabak , Tarik Muharemovic
IPC分类号： H04B1/38 , H04B1/04 , H01Q11/12 , H04M1/00
CPC分类号： H04W52/325 , H04W52/16 , H04W52/262 , H04W52/282
摘要： Embodiments of the invention provide method and structure for boosting pilot signal power relative to data signal power. The velocity of user equipment is obtained. The velocity measurement is used in determining the transmission power of the pilot signal and applying the increase to a plurality of pilots and decreasing the data signal power by a proportional amount.
摘要翻译：本发明的实施例提供了相对于数据信号功率提升导频信号功率的方法和结构。获得用户设备的速度。速度测量用于确定导频信号的发射功率，并将增加量应用于多个导频，并将数据信号功率降低一定比例。

6. 发明申请

US20080043708A1 Uplink Reference Signal for Time and Frequency Scheduling of Transmissions 有权
标题翻译：传输时间和频率调度的上行链路参考信号
公开(公告)号：US20080043708A1
公开(公告)日：2008-02-21
申请号：US11536418
申请日：2006-09-28
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04B7/212
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0039 , H04L5/0053 , H04L47/10
摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.
摘要翻译：提供了一种用于从用户设备（UE）复用参考信号（RS）传输的方法，其中RS具有大于数据信号带宽（分布式RS）的带宽。传输时间间隔（TTI）包括一个或多个子帧，每个子帧包括至少两个RS传输周期和多个数据信号传输周期。在包括TTI的子帧中的至少一个子帧中的至少两个RS传输周期中的至少一个期间，发送分布式RS。在剩余的RS传输周期期间，对于具有数据信号传输的UE，RS带宽与数据信号带宽（本地化RS）基本相同。总系统带宽被划分为连续的非重叠子带宽，称为参考信号复用块（RSMB）。分布式RS的传输发生在RSMB内，不会跨越不同的RSMB。 RSMB的大小和数量可以在时间上重新配置，重新配置周期远远大于TTI持续时间。

7. 发明申请

US20080039098A1 METHODS AND APPARATUS TO SCHEDULE UPLINK TRANSMISSIONS IN WIRELESS COMMUNICATION SYSTEMS 有权
标题翻译：无线通信系统中上行链路传输的方法与装置
公开(公告)号：US20080039098A1
公开(公告)日：2008-02-14
申请号：US11838746
申请日：2007-08-14
申请人： Aris Papasakellariou , Tarik Muharemovic
发明人： Aris Papasakellariou , Tarik Muharemovic
IPC分类号： H04Q7/20
CPC分类号： H04W72/1231 , H04W72/1284
摘要： Methods and apparatus to schedule uplink transmissions in wireless communication systems, such as cellular communication systems, are disclosed. A disclosed example method comprises measuring channel conditions for a plurality of equipment devices at a base transceiver station of a wireless communication system, dividing an operating bandwidth of the base transceiver station into two or more non-overlapping portions, and instructing a first of the plurality of user equipment devices to transmit a sounding reference signal in a first non-overlapping portion during a sounding reference signal transmission interval.
摘要翻译：公开了在诸如蜂窝通信系统的无线通信系统中调度上行链路传输的方法和装置。所公开的示例性方法包括：在无线通信系统的基站收发台处测量多个设备设备的信道条件，将基站收发信机的工作带宽划分为两个或多个非重叠部分，并指示多个第一个的用户设备在探测参考信号传输间隔期间在第一非重叠部分中发送探测参考信号。

8. 发明申请

US20070183386A1 Reference Signal Sequences and Multi-User Reference Signal Sequence Allocation 审中-公开
标题翻译：参考信号序列和多用户参考信号序列分配
公开(公告)号：US20070183386A1
公开(公告)日：2007-08-09
申请号：US11461982
申请日：2006-08-02
申请人： Tarik Muharemovic , Eko Onggosanusi , Aris Papasakellariou
发明人： Tarik Muharemovic , Eko Onggosanusi , Aris Papasakellariou
IPC分类号： H04B1/00 , H04B7/208
CPC分类号： H04L5/023 , H04L27/2613 , H04W72/04 , H04W74/00
摘要： Embodiments of the invention provide method for allocating CAZAC pilot (reference signal) sequences in multiple access OFDMA systems, or alternatively, in multiple access DFT-spread OFDM(A) systems (or SC-FDMA). Reference signal transmissions from different mobiles can either be distinguished by use of disjoint sub-carriers (frequency division orthogonality), or alternatively by use of distinct cyclic shifts of one base CAZAC sequence. In a wireless cellular network, neighboring cells should utilize different CAZAC sequences, in order to mitigate out-of-cell interference.
摘要翻译：本发明的实施例提供了用于在多接入OFDMA系统中分配CAZAC导频（参考信号）序列的方法，或者在多址DFT扩展OFDM（A）系统（或SC-FDMA）中分配CAZAC导频（参考信号）序列。可以通过使用不相交的子载波（频分复用性）来区分来自不同移动台的参考信号传输，或者通过使用一个基本CAZAC序列的不同的循环移位来区分来自不同移动台的参考信号传输。在无线蜂窝网络中，相邻小区应该利用不同的CAZAC序列，以便减轻小区外的干扰。

9. 发明授权

US08717993B2 Adaptive selection of transmission parameters for reference signals 有权
标题翻译：参考信号的传输参数的自适应选择
公开(公告)号：US08717993B2
公开(公告)日：2014-05-06
申请号：US13314405
申请日：2011-12-08
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04W72/04
CPC分类号： H04W72/1231 , H04W72/1268
摘要： A method and apparatus for defining transmission parameters of user equipment reference signals. The method includes estimating channel delay spreads of a plurality of user equipments scheduled for transmission at a particular transmission time period or sub-frame in an uplink for communication with a NodeB, and allocating transmission parameters to each scheduled user equipment of the plurality of user equipments in accordance to the delay spreads of the plurality of user equipments scheduled for transmission in the particular time period or sub-frame, wherein the parameters comprises a cyclic shift allocated to each m-th user equipment equal to the sum of a delay spread and a timing uncertainty of each of the previous m-1 user equipments.
摘要翻译：一种用于定义用户设备参考信号的传输参数的方法和装置。该方法包括：估计在特定传输时间段或者在上行链路中进行传输的多个用户设备的信道延迟扩展，用于与节点B进行通信，并将传输参数分配给多个用户设备中的每个调度的用户设备根据调度用于在特定时间段或子帧中传输的多个用户设备的延迟扩展，其中参数包括分配给每个第m个用户设备的循环移位等于延迟扩展和每个先前的m-1用户设备的定时不确定性。

10. 发明授权

US08295262B2 Uplink reference signal for time and frequency scheduling of transmissions 有权
标题翻译：用于传输时间和频率调度的上行链路参考信号
公开(公告)号：US08295262B2
公开(公告)日：2012-10-23
申请号：US11536418
申请日：2006-09-28
申请人： Tarik Muharemovic , Aris Papasakellariou
发明人： Tarik Muharemovic , Aris Papasakellariou
IPC分类号： H04B7/208
CPC分类号： H04L5/0007 , H04L5/0016 , H04L5/0039 , H04L5/0053 , H04L47/10
摘要： A method for multiplexing reference signal (RS) transmissions from user equipments (UEs), with the RS having a bandwidth larger than the data signal bandwidth (distributed RS) is provided. A transmission time interval (TTI) comprises of one or more sub-frames and each sub-frame comprises of at least two RS transmission periods and a plurality of data signal transmission periods. A distributed RS is transmitted during at least one of the at least two RS transmission periods in at least one of the sub-frames comprising the TTI. During the remaining RS transmission periods, for a UE having a data signal transmission, the RS bandwidth is substantially the same as the data signal bandwidth (localized RS). The total system bandwidth is divided into contiguous, non-overlapping sub-bandwidths, called reference signal multiplexing blocks (RSMBs). Transmission of distributed RS occurs within an RSMB and does not cross over different RSMBs. The size and number of RSMBs can be re-configurable in time and a re-configuration period is much larger than the TTI duration.
摘要翻译：提供了一种用于从用户设备（UE）复用参考信号（RS）传输的方法，其中RS具有大于数据信号带宽（分布式RS）的带宽。传输时间间隔（TTI）包括一个或多个子帧，每个子帧包括至少两个RS传输周期和多个数据信号传输周期。在包括TTI的子帧中的至少一个子帧中的至少两个RS传输周期中的至少一个期间，发送分布式RS。在剩余的RS传输周期期间，对于具有数据信号传输的UE，RS带宽与数据信号带宽（本地化RS）基本相同。总系统带宽被划分为连续的非重叠子带宽，称为参考信号复用块（RSMB）。分布式RS的传输发生在RSMB内，不会跨越不同的RSMB。 RSMB的大小和数量可以在时间上重新配置，重新配置周期远远大于TTI持续时间。

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