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公开(公告)号：US20100310027A1
公开(公告)日：2010-12-09
申请号：US12856503
申请日：2010-08-13
IPC分类号： H04B1/10
CPC分类号： H04L25/03006 , H04L25/022 , H04L25/0228 , H04L2025/03375 , H04L2025/03783
摘要： One embodiment includes a method of receiving a transmitted signal. The method comprises receiving a signal transmitted over a channel. The signal comprises a known signal and an information signal. The method further includes determining at least one indicator of channel characteristics based at least in part on the portion of the known signal. The method further includes generating a first value indicative of the information signal based at least in part on the at least one indicator of the channel characteristics. The first value comprises an error signal. The method further comprises removing the error signal from the first estimate of the signal based at least in part on the portion of the known signal. Other embodiments include systems for performing the method and methods of making such systems.
摘要翻译： 一个实施例包括接收发射信号的方法。 该方法包括接收通过信道发送的信号。 信号包括已知信号和信息信号。 该方法还包括至少部分地基于已知信号的部分来确定信道特性的至少一个指示符。 该方法还包括至少部分地基于信道特性的至少一个指示符来生成指示信息信号的第一值。 第一值包括误差信号。 该方法还包括至少部分地基于已知信号的部分从信号的第一估计中去除误差信号。 其他实施例包括用于执行制造这种系统的方法和方法的系统。
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22.发明申请METHOD AND APPARATUS FOR PROCESSING PRIMARY AND SECONDARY SYNCHRONIZATION SIGNALS FOR WIRELESS COMMUNICATION 有权用于无线通信处理主要和二次同步信号的方法和装置公开(公告)号：US20100182979A1
公开(公告)日：2010-07-22
申请号：US12439714
申请日：2007-10-01
申请人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
发明人： Durga Prasad Malladi , Byoung-Hoon Kim , Tao Luo
IPC分类号： H04W56/00
CPC分类号： H04L27/2613 , H04B2201/70701 , H04J11/0069 , H04J13/0059 , H04J13/107
摘要： Techniques for facilitating cell search by user equipments (UEs) in a wireless communication system are described. In an aspect, a primary synchronization code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence that is repeated multiple times. In another aspect, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In one design, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there “+” denotes concatenation. In yet another aspect, a set of secondary synchronization code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.
摘要翻译： 描述了用于在无线通信系统中用于用户设备（UE）的小区搜索的技术。 在一方面，可以基于Frank序列和重复多次的恒定幅度序列来生成主同步码（PSC）序列。 在另一方面，可以基于具有良好的非周期相关性质和有效实现的互补序列来生成一组PSC序列。 在一种设计中，可以基于Golay互补序列A和B形成PSC序列A + B和B + A，“+”表示连接。 在另一方面，可以基于一组基本序列和调制方案的不同调制符号来生成一组次同步码（SSC）序列。 每个基本序列可以由用于调制方案的M个可能调制符号中的每一个调制以获得M个不同的SSC序列。
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23.发明申请公开(公告)号：US20100182975A1
公开(公告)日：2010-07-22
申请号：US12439727
申请日：2007-10-02
IPC分类号： H04W72/04
CPC分类号： H04L1/1671 , H04L1/1664 , H04L5/023
摘要： Techniques for transmitting acknowledgement (ACK) information in a wireless communication system are described. The system supports data transmission to multiple user equipments (UEs) on the same downlink resources with spatial division multiple access (SDMA). A base station sends a data transmission with multiple (M) layers to M UEs. The downlink resources used for the data transmission are associated with ACK resources used to send ACK information for the data transmission. The ACK resources may be partitioned into M portions, e.g., based on frequency division multiplexing (FDM). Each of the M layers is associated with a respective portion of the ACK resources. A recipient UE for each layer sends ACK for that layer on the associated portion of the ACK resources. For each ACK resource portion, one or more pilot symbols may be sent on one or more resource elements, and ACK symbols may be sent on remaining resource elements.
摘要翻译： 描述用于在无线通信系统中发送确认（ACK）信息的技术。 该系统支持使用空分多址（SDMA）在相同下行链路资源上向多个用户设备（UE）传输数据。 基站向M个UE发送具有多个（M）层的数据传输。 用于数据传输的下行链路资源与用于发送用于数据传输的ACK信息的ACK资源相关联。 ACK资源可以被划分为M个部分，例如基于频分复用（FDM）。 每个M层与ACK资源的相应部分相关联。 每个层的接收者UE在ACK资源的相关部分上为该层发送ACK。 对于每个ACK资源部分，可以在一个或多个资源元素上发送一个或多个导频符号，并且可以在剩余的资源元素上发送ACK符号。
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24.发明申请METHOD AND APPARATUS FOR CELL SEARCH IN AN ORTHOGONAL WIRELESS COMMUNICATION SYSTEM 有权用于在正交无线通信系统中搜索的方法和装置公开(公告)号：US20100103906A1
公开(公告)日：2010-04-29
申请号：US12443960
申请日：2007-10-31
申请人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
发明人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
CPC分类号： H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
摘要： Systems and methodologies are described that provide techniques for efficient cell search in a wireless communication system. In one aspect, a frequency reuse pattern can be generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a NodeB based on cell IDs or cell group IDs for the cells. The frequency shifts applied to reference signals can then be utilized as a basis for multiplexing reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.
摘要翻译： 描述了提供用于无线通信系统中的有效小区搜索的技术的系统和方法。 在一个方面，可以通过将频移应用于从为小区提供覆盖的小区发送的参考信号来生成频率重用模式，所述小区基于小区的小区ID或小区组ID。 然后，施加到参考信号的频移可以用作使用频分复用（FDM）或FDM和其他复用技术的组合对来自不同小区的参考信号进行复用的基础。 可以进一步对从各小区发送的参考信号进行调整，例如发射功率调整，以提高检测性能。
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25.发明申请公开(公告)号：US20090116573A1
公开(公告)日：2009-05-07
申请号：US12264815
申请日：2008-11-04
申请人： Peter Gaal , Yongbin Wei , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Peter Gaal , Yongbin Wei , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04B7/02
CPC分类号： H04B7/12 , H03M13/2703 , H03M13/2742 , H03M13/2789 , H04L5/0007 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L25/022 , H04L25/0226 , H04L25/0228
摘要： Aspects relate to a flexible interleaving scheme that provides frequency diversity to randomizes interference Frequency diversity groups can be utilized, wherein control channel elements (CCEs) gain greater frequency diversity for a given number of mini-CCEs (e.g., subset of CCEs). A frequency diversity group index is permuted according to a bit reversed scheme to facilitate control channel elements with a small number of mini-CCEs to also gain sufficient frequency diversity.
摘要翻译： 方面涉及提供频率分集以使随机化干扰的灵活交错方案。可以利用频率分集组，其中控制信道单元（CCE）为给定数量的小型CCE（例如，CCE的子集）获得更大的频率分集。 频率分集组索引根据比特反转方案进行置换，以便于具有少量mini-CCE的控制信道单元以获得足够的频率分集。
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26.发明授权Method and apparatus for cell search in an orthogonal wireless communication system 有权用于正交无线通信系统中的小区搜索的方法和装置公开(公告)号：US08837380B2
公开(公告)日：2014-09-16
申请号：US12443960
申请日：2007-10-31
申请人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
发明人： Juan Montojo , Byoung-Hoon Kim , Durga Prasad Malladi , Tao Luo
IPC分类号： H04B7/185 , H04B7/216 , H04B7/212 , H04W4/00 , H04J1/00 , H04B7/208 , H04J3/06 , H04J11/00 , H04W48/08 , H04L5/00
CPC分类号： H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
摘要： Systems and methodologies are described that provide techniques for efficient cell search in a wireless communication system. In one aspect, a frequency reuse pattern can be generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a NodeB based on cell IDs or cell group IDs for the cells. The frequency shifts applied to reference signals can then be utilized as a basis for multiplexing reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.
摘要翻译： 描述了提供用于无线通信系统中的有效小区搜索的技术的系统和方法。 在一个方面，可以通过将频移应用于从为小区提供覆盖的小区发送的参考信号来产生频率重用模式，所述小区基于小区的小区ID或小区组ID。 然后，施加到参考信号的频移可以用作使用频分复用（FDM）或FDM和其他复用技术的组合对来自不同小区的参考信号进行复用的基础。 可以进一步对从各小区发送的参考信号进行调整，例如发射功率调整，以提高检测性能。
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公开(公告)号：US08594260B2
公开(公告)日：2013-11-26
申请号：US12856503
申请日：2010-08-13
IPC分类号： H04B1/10
CPC分类号： H04L25/03006 , H04L25/022 , H04L25/0228 , H04L2025/03375 , H04L2025/03783
摘要： One embodiment includes a method of receiving a transmitted signal. The method comprises receiving a signal transmitted over a channel. The signal comprises a known signal and an information signal. The method further includes determining at least one indicator of channel characteristics based at least in part on the portion of the known signal. The method further includes generating a first value indicative of the information signal based at least in part on the at least one indicator of the channel characteristics. The first value comprises an error signal. The method further comprises removing the error signal from the first estimate of the signal based at least in part on the portion of the known signal. Other embodiments include systems for performing the method and methods of making such systems.
摘要翻译： 一个实施例包括接收发射信号的方法。 该方法包括接收通过信道发送的信号。 信号包括已知信号和信息信号。 该方法还包括至少部分地基于已知信号的部分来确定信道特性的至少一个指示符。 该方法还包括至少部分地基于信道特性的至少一个指示符来生成指示信息信号的第一值。 第一个值包括一个误差信号。 该方法还包括至少部分地基于已知信号的部分从信号的第一估计中去除误差信号。 其他实施例包括用于执行制造这种系统的方法和方法的系统。
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28.发明授权公开(公告)号：US08059609B2
公开(公告)日：2011-11-15
申请号：US11686950
申请日：2007-03-15
IPC分类号： H04W4/00
CPC分类号： H04B7/0452 , H04B7/0417 , H04B7/0632 , H04B7/0634 , H04L1/06 , H04L1/1812 , H04L1/1854 , H04L1/1887 , H04L27/2608
摘要： Techniques for supporting MIMO transmission are described. Users are classified into a first group of users to be scheduled individually for MIMO transmission and a second group of users that can be scheduled together for MIMO transmission. Transmission resources are allocated to the first and second groups, e.g., based upon various criteria such as the number of users in each group, data requirements of the users, total loading for each group, etc. The transmission resources may be hybrid automatic retransmission (HARQ) interlaces, frequency channels, time frequency resources, etc. The resource allocation may be semi-static. The transmission resources allocated to each group are used for data transmission on the downlink and/or uplink for the users in the group. HARQ with blanking may be used for data transmission for the users in the first group. HARQ without blanking may be used for data transmission for the users in the second group.
摘要翻译： 描述了支持MIMO传输的技术。 用户被分类为要单独调度用于MIMO传输的第一组用户和可以一起调度用于MIMO传输的第二组用户。 传输资源分配给第一组和第二组，例如基于各组用户数，各用户的数据需求，每个组的总负载等各种标准。传输资源可以是混合自动重传（ HARQ）交织，频率信道，时间频率资源等。资源分配可以是半静态的。 分配给每个组的传输资源用于组中用户的下行链路和/或上行链路上的数据传输。 具有消隐的HARQ可以用于第一组中的用户的数据传输。 不消消息的HARQ可以用于第二组中的用户的数据传输。
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29.发明授权Feedback of differentially encoded channel state information for multiple-input multiple-output (MIMO) and subband scheduling in a wireless communication system 有权用于无线通信系统中多输入多输出（MIMO）和子带调度的差分编码信道状态信息的反馈公开(公告)号：US08014455B2
公开(公告)日：2011-09-06
申请号：US11686952
申请日：2007-03-15
IPC分类号： H04K1/10
CPC分类号： H04L1/0026 , H04B7/0632 , H04B7/0641 , H04B7/066 , H04L1/0029 , H04L1/06 , H04L27/2608
摘要： Techniques for efficiently sending channel state information using differential encoding are described. Differential encoding may be performed across space, across frequency; across space and frequency, across space, frequency and time, or across some other combination of dimensions. In one design, spatial state information may be determined for multiple spatial channels on multiple subbands. The spatial channels may correspond to different antennas, different precoding vectors, etc. Channel quality indicator (CQI) values may be obtained for the multiple spatial channels on the multiple subbands. The CQI values may be differentially encoded across the multiple spatial channels and the multiple subbands to obtain differential CQI information. In another design, CQI values may be obtained for multiple spatial channels on the multiple subbands in multiple time intervals and may be differentially encoded across space, frequency and time. The differential CQI information and the spatial state information may be sent as feedback.
摘要翻译： 描述使用差分编码有效地发送信道状态信息的技术。 差分编码可以跨越空间跨越频率执行; 跨越空间和频率，跨越空间，频率和时间，或跨越其他尺寸的组合。 在一种设计中，可以为多个子带上的多个空间信道确定空间状态信息。 空间信道可以对应于不同的天线，不同的预编码向量等。可以为多个子带上的多个空间信道获得信道质量指示符（CQI）值。 CQI值可以在多个空间信道和多个子带之间进行差分编码，以获得差分CQI信息。 在另一种设计中，可以在多个时间间隔中对多个子带上的多个空间信道获得CQI值，并且可以在空间，频率和时间之间进行差分编码。 差分CQI信息和空间状态信息可以作为反馈发送。
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公开(公告)号：US08014265B2
公开(公告)日：2011-09-06
申请号：US12189483
申请日：2008-08-11
IPC分类号： H04W4/00
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译： 描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。 在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。 发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。 发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。 发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。 发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。 然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。
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