Assignment of ACK resource in a wireless communication system
    92.
    发明授权
    Assignment of ACK resource in a wireless communication system 有权
    ACK资源在无线通信系统中的分配

    公开(公告)号:US08531962B2

    公开(公告)日:2013-09-10

    申请号:US12431424

    申请日:2009-04-28

    IPC分类号: G01R31/08

    摘要: Techniques for assigning acknowledgement (ACK) resource to a user equipment (UE) in a wireless communication system are described. In one design, a first parameter indicative of radio resources (e.g., the lowest index of at least one physical resource block) allocated to the UE for data transmission may be obtained. A second parameter indicative of another resource (e.g., a cyclic shift of a reference signal sequence) assigned to the UE for data transmission may also be obtained. The first and/or second parameter may be restricted, and each restricted parameter may be limited to a set of allowed values among all available values for the parameter. ACK resource assigned to the UE for data transmission may be determined based on the first and second parameters. In one design, sequential first parameter values may be mapped to sequential ACK resources indices. In another design, mirror mapping with different mapping directions may be used for different allowed values of the second parameter.

    摘要翻译: 描述了在无线通信系统中向用户设备(UE)分配确认(ACK)资源的技术。 在一种设计中,可以获得指示分配给用于数据传输的UE的无线电资源(例如,至少一个物理资源块的最低索引)的第一参数。 还可以获得指示分配给用于数据传输的UE的另一资源(例如,参考信号序列的循环移位)的第二参数。 可以限制第一和/或第二参数,并且每个受限参数可以被限制在参数的所有可用值中的一组允许值。 可以基于第一和第二参数来确定分配给用于数据传输的UE的ACK资源。 在一种设计中,顺序的第一参数值可被映射到顺序的ACK资源索引。 在另一种设计中,具有不同映射方向的镜像映射可用于第二参数的不同允许值。

    Physical random access channel (PRACH) transmission in multicarrier operation
    93.
    发明授权
    Physical random access channel (PRACH) transmission in multicarrier operation 有权
    多载波操作中的物理随机接入信道(PRACH)传输

    公开(公告)号:US08526374B2

    公开(公告)日:2013-09-03

    申请号:US12557485

    申请日:2009-09-10

    IPC分类号: H04W4/00

    摘要: Systems and methodologies are described that facilitate selecting an uplink carrier for random access within a wireless environment having multiple carriers. Selection of an uplink carrier for random access can be randomly selected from a set of available uplink carriers. Additionally, the uplink carrier for random access can be selected based upon which uplink carrier is paired with an anchor carrier. Further, the uplink carrier for random access can be identified based upon a bandwidth related to the user equipment (UE). Reference signals can also be employed in order to identify an uplink carrier to perform random access.

    摘要翻译: 描述了有助于在具有多个载波的无线环境中选择用于随机接入的上行链路载波的系统和方法。 可以从一组可用的上行链路载波中随机选择用于随机接入的上行链路载波的选择。 另外,可以基于哪个上行链路载波与锚定载波配对来选择用于随机接入的上行链路载波。 此外,可以基于与用户设备(UE)相关的带宽来识别用于随机接入的上行链路载波。 也可以使用参考信号来识别上行链路载波以执行随机接入。

    REFERENCE SIGNAL PATTERNS
    94.
    发明申请
    REFERENCE SIGNAL PATTERNS 有权
    参考信号模式

    公开(公告)号:US20120134273A1

    公开(公告)日:2012-05-31

    申请号:US13149766

    申请日:2011-05-31

    IPC分类号: H04W24/00

    CPC分类号: H04L5/0048

    摘要: Certain aspects of the present disclosure provide techniques for allocating resources for use in transmitting reference signals (RSs). According to certain aspects, a large set of enumerated possible CSI-RS resources (“CSI-RS patterns”) may be defined and a base station may select a CSI-RS pattern from a subset of the available patterns, with the subset determined by a transmission configuration.

    摘要翻译: 本公开的某些方面提供了用于分配用于发送参考信号(RS)的资源的技术。 根据某些方面,可以定义大量可能的CSI-RS资源(“CSI-RS模式”),并且基站可以从可用模式的子集中选择CSI-RS模式,其中子集由 传输配置。

    METHOD AND APPARATUS FOR IMPROVING UPLINK TRANSMISSION MODE CONFIGURATION
    95.
    发明申请
    METHOD AND APPARATUS FOR IMPROVING UPLINK TRANSMISSION MODE CONFIGURATION 有权
    改进上传传输模式配置的方法和装置

    公开(公告)号:US20120113869A1

    公开(公告)日:2012-05-10

    申请号:US13290979

    申请日:2011-11-07

    IPC分类号: H04W4/00

    摘要: A method, an apparatus, and a computer program product for wireless communication are provided in which a first message to reconfigure an uplink transmission mode of a user equipment (UE) from a first uplink transmission mode to a second uplink transmission mode is transmitted. Further, a reconfiguration scheme to assure at least one of two or more second messages are recognizable by the UE during a transition period after transmission of the first message is implemented. In another example, a UE and eNB may be equipped to respectively transmit and receive a first message to reconfigure a SRS mode used by a UE. In such an aspect the first message may respectively indicate and be used to determine an SRS transmission port specified in a field capable of indicating a number of SRS transmission ports that is greater than a number of physical UE antenna ports.

    摘要翻译: 提供了一种用于无线通信的方法,装置和计算机程序产品,其中发送用于将用户设备(UE)的上行链路传输模式从第一上行链路传输模式重新配置到第二上行链路传输模式的第一消息。 此外,确保两个或更多个第二消息中的至少一个的重新配置方案可由UE在实现第一消息的传输之后的过渡期间被可识别。 在另一示例中,UE和eNB可以被配备为分别发送和接收第一消息以重新配置UE使用的SRS模式。 在这种方面,第一消息可以分别指示并用于确定在能够指示大于多个物理UE天线端口的SRS传输端口的数量的字段中指定的SRS传输端口。

    REFERENCE SIGNAL RECEPTION AND CHANNEL STATE INFORMATION DETERMINATION FOR MULTIPLE NODES IN A WIRELESS COMMUNICATION NETWORK
    96.
    发明申请
    REFERENCE SIGNAL RECEPTION AND CHANNEL STATE INFORMATION DETERMINATION FOR MULTIPLE NODES IN A WIRELESS COMMUNICATION NETWORK 有权
    无线通信网络中多个节点的参考信号接收和信道状态信息确定

    公开(公告)号:US20120113816A1

    公开(公告)日:2012-05-10

    申请号:US13288172

    申请日:2011-11-03

    摘要: Techniques for receiving reference signals from multiple nodes and determining channel state information (CSI) for the nodes are disclosed. A user equipment (UE) may determine and report CSI for the multiple nodes to support data transmission to the UE. The nodes may transmit reference signals based on different configurations. The configuration for each node may indicate when, where, and how the node transmits its reference signal. The UE may determine CSI for different nodes and/or different combinations of nodes based on the reference signals transmitted by these nodes as well as an indication of which subframes to use to determine each CSI reported by the UE. The UE may report different CSIs for different subframes and may receive data transmission sent by a single node or a combination of nodes based on the reported CSIs.

    摘要翻译: 公开了用于从多个节点接收参考信号并确定节点的信道状态信息(CSI)的技术。 用户设备(UE)可以确定并报告多个节点的CSI以支持向UE的数据传输。 节点可以基于不同的配置发送参考信号。 每个节点的配置可以指示节点发送其参考信号的时间,地点和方式。 UE可以基于由这些节点发送的参考信号来确定不同节点和/或节点的不同组合的CSI以及用于确定由UE报告的每个CSI的哪些子帧的指示。 UE可以针对不同的子帧报告不同的CSI,并且可以基于所报告的CSI接收单个节点或节点的组合发送的数据传输。

    CHANNEL FEEDBACK BASED ON REFERENCE SIGNAL
    98.
    发明申请
    CHANNEL FEEDBACK BASED ON REFERENCE SIGNAL 有权
    基于参考信号的通道反馈

    公开(公告)号:US20120020230A1

    公开(公告)日:2012-01-26

    申请号:US13006216

    申请日:2011-01-13

    IPC分类号: H04L12/26

    摘要: Techniques for supporting channel measurement and reporting in a wireless communication system are described. In one design, a cell transmits a cell-specific reference signal (CRS) used for channel estimation and coherent demodulation and a channel spatial information reference signal (CSI-RS) used for channel measurement and channel feedback reporting. The cell may transmit the CSI-RS less frequently than the CRS, or from more antenna ports than the CRS, or on fewer resource elements than the CRS, or a combination thereof. In one design, a user equipment (UE) determines at least one bandwidth part configured for the UE, with each bandwidth part covering at least one subband. The UE receives the CRS and CSI-RS from the cell, determines channel feedback information for the at least one bandwidth part based on the CSI-RS, sends the channel feedback information to the cell, and receives data transmitted by the cell based on the channel feedback information.

    摘要翻译: 描述了在无线通信系统中支持信道测量和报告的技术。 在一种设计中,小区发送用于信道估计和相干解调的小区特定参考信号(CRS)以及用于信道测量和信道反馈报告的信道空间信息参考信号(CSI-RS)。 小区可以比CRS更频繁地发送CSI-RS,或者比比CRS更多的天线端口或比CRS更少的资源元素或其组合来发送CSI-RS。 在一种设计中,用户设备(UE)确定为UE配置的至少一个带宽部分,每个带宽部分覆盖至少一个子带。 UE从小区接收CRS和CSI-RS,基于CSI-RS确定至少一个带宽部分的信道反馈信息,向小区发送信道反馈信息,并接收基于小区的小区发送的数据 渠道反馈信息。

    MULTIPLEXING DEMODULATION REFERENCE SIGNALS IN WIRELESS COMMUNICATIONS
    99.
    发明申请
    MULTIPLEXING DEMODULATION REFERENCE SIGNALS IN WIRELESS COMMUNICATIONS 有权
    无线通信中的多路复用解调参考信号

    公开(公告)号:US20120014318A1

    公开(公告)日:2012-01-19

    申请号:US12987771

    申请日:2011-01-10

    IPC分类号: H04J11/00 H04L27/28

    摘要: Methods and apparatuses are provided for determining cyclic shift (CS) values and/or orthogonal cover codes (OCC) for a plurality of demodulation reference signals (DM-RS) transmitted over multiple layers in multiple-input multiple-output (MIMO) communications. A CS index can be received from a base station in downlink control information (DCI) or similar signaling. Based at least in part on the CS index, CS values for the plurality of DM-RSs can be determined. In addition, OCC can be explicitly signaled or similarly determined from the CS index and/or a configured CS value received from a higher layer. In addition, controlling assignment of CS indices and/or OCC can facilitate providing orthogonality for communications from paired devices in multiuser MIMO.

    摘要翻译: 提供了用于确定在多输入多输出(MIMO)通信中通过多层传输的多个解调参考信号(DM-RS)的循环移位(CS)值和/或正交覆盖码(OCC)的方法和装置。 可以在下行链路控制信息(DCI)或类似信令中从基站接收CS索引。 至少部分地基于CS索引,可以确定多个DM-RS的CS值。 另外,可以从CS索引和/或从较高层接收到的配置的CS值明确地发信号或类似地确定OCC。 此外,控制CS索引和/或OCC的分配可以有助于在多用户MIMO中为来自配对设备的通信提供正交性。

    DEMODULATION REFERENCE SIGNALS FOR RETRANSMISSION IN WIRELESS COMMUNICATION
    100.
    发明申请
    DEMODULATION REFERENCE SIGNALS FOR RETRANSMISSION IN WIRELESS COMMUNICATION 有权
    用于无线通信恢复的解调参考信号

    公开(公告)号:US20110317646A1

    公开(公告)日:2011-12-29

    申请号:US13171270

    申请日:2011-06-28

    IPC分类号: H04W72/06

    摘要: Provided is a method for wireless communication which includes transmitting codewords according to an initial transmission rank, receiving downlink transmissions indicating at least one of the codewords to be retransmitted, constructing a demodulation reference signal (DM-RS) to be sent with the at least one codeword to be retransmitted, and retransmitting the at least one codeword with the DM-RS according to a retransmission rank. The downlink transmissions may include one or more physical hybrid automatic retransmission request indicator channels and the DM-RS may be constructed based at least in part on information in the downlink transmissions.

    摘要翻译: 提供了一种用于无线通信的方法,其包括根据初始传输秩发送码字,接收指示要重传的码字中的至少一个的下行链路传输,构建要与所述至少一个发送的解调参考信号(DM-RS)一起发送 要发送的码字,以及根据重传等级,用DM-RS重发所述至少一个码字。 下行链路传输可以包括一个或多个物理混合自动重发请求指示符信道,并且可以至少部分地基于下行链路传输中的信息来构建DM-RS。