公开(公告)号：US20120014318A1

公开(公告)日：2012-01-19

申请号：US12987771

申请日：2011-01-10

申请人： Xiliang Luo ,  Wanshi Chen ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo

发明人： Xiliang Luo ,  Wanshi Chen ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04J11/00 ,  H04L27/28

CPC分类号： H04L5/0051 ,  H04B7/0413 ,  H04J13/004 ,  H04J13/0074 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/2613

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。

公开(公告)号：US20110317646A1

公开(公告)日：2011-12-29

申请号：US13171270

申请日：2011-06-28

申请人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo

发明人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo

IPC分类号： H04W72/06

CPC分类号： H04W72/0406 ,  H04L1/06 ,  H04L1/1893 ,  H04L5/003

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。

公开(公告)号：US20110286391A1

公开(公告)日：2011-11-24

申请号：US13110751

申请日：2011-05-18

申请人： Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Xiliang Luo ,  Aleksandar Damnjanovic

发明人： Wanshi Chen ,  Juan Montojo ,  Peter Gaal ,  Xiliang Luo ,  Aleksandar Damnjanovic

IPC分类号： H04W52/26

CPC分类号： H04W52/265 ,  H04W52/08 ,  H04W52/10 ,  H04W52/34 ,  H04W52/346 ,  H04W52/48

摘要： A user equipment (UE) is configured for carrier aggregation in a wireless communication system. The UE selects control information to be transmitted in an uplink control channel format in a component carrier of two or more component carriers, where the control information includes information types associated with different information reliability requirements. The UE generates an open-loop power control parameter and/or a closed-loop power control parameter based on the information types. The UE transmits the control information in the uplink control channel format at a power level determined by the open-loop power control parameter and/or the closed-loop power control parameter.

摘要翻译： 用户设备（UE）被配置用于无线通信系统中的载波聚合。 UE在两个或多个分量载波的分量载波中选择要以上行链路控制信道格式发送的控制信息，其中控制信息包括与不同信息可靠性要求相关联的信息类型。 UE基于信息类型生成开环功率控制参数和/或闭环功率控制参数。 UE以由开环功率控制参数和/或闭环功率控制参数确定的功率电平发送上行链路控制信道格式的控制信息。

公开(公告)号：US20110096657A1

公开(公告)日：2011-04-28

申请号：US12909704

申请日：2010-10-21

申请人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo

发明人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04J11/00 ,  H04W4/00

CPC分类号： H04L5/0001

摘要： Methods, devices and computer program products are provided to improve uplink communications in a wireless communication system. Reference symbols in an uplink transmission radio subframe are time-frequency multiplexed with additional data symbols. The multiplexed data symbols are transmitted in an uplink transmission to another device within the wireless communication network along with non-multiplexed data symbols. The multiplexing operations enable the transmission of additional data symbols without increasing the overhead associated with the transmission of symbols in the radio subframe.

摘要翻译： 提供方法，设备和计算机程序产品以改善无线通信系统中的上行链路通信。 上行链路传输无线电子帧中的参考符号与附加数据符号进行时间频率复用。 多路复用的数据符号在上行链路传输中与无复用数据符号一起发送到无线通信网络内的另一设备。 多路复用操作使得能够传输附加数据符号而不增加与无线电子帧中的符号传输相关联的开销。

公开(公告)号：US20100202559A1

公开(公告)日：2010-08-12

申请号：US12687576

申请日：2010-01-14

申请人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo ,  Xiaoxia Zhang

发明人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Juan Montojo ,  Xiaoxia Zhang

IPC分类号： H04L27/00

CPC分类号： H04B7/0678 ,  H04B7/0684 ,  H04B7/0697

摘要： Techniques for transmitting data from multiple transmit antennas using space orthogonal resource transmit diversity (SORTD) are described. For the SORTD scheme, a different orthogonal resource may be assigned to each transmit antenna. Data may be sent from the multiple transmit antennas using multiple orthogonal resources. In one design, a UE may process at least one information bit (e.g., with joint or independent coding) to obtain first and second sets of at least one modulation symbol. The UE may process the first set of modulation symbol(s) for transmission from the first transmit antenna using a first orthogonal resource. The UE may process the second set of modulation symbol(s) for transmission from the second transmit antenna using a second orthogonal resource. Each orthogonal resource may include a different reference signal sequence or a different set of reference signal sequence and orthogonal sequence.

摘要翻译： 描述了使用空间正交资源发射分集（SORTD）从多个发射天线发射数据的技术。 对于SORTD方案，可以将不同的正交资源分配给每个发射天线。 可以使用多个正交资源从多个发射天线发送数据。 在一种设计中，UE可以处理至少一个信息比特（例如，具有联合或独立编码）以获得第一和第二组至少一个调制符号。 UE可以使用第一正交资源处理第一组调制符号以从第一发射天线发射。 UE可以使用第二正交资源处理第二组调制符号以从第二发射天线发射。 每个正交资源可以包括不同的参考信号序列或不同的参考信号序列集合和正交序列。

公开(公告)号：US20100195759A1

公开(公告)日：2010-08-05

申请号：US12697619

申请日：2010-02-01

申请人： Peter Gaal ,  Xiliang Luo ,  Wanshi Chen ,  Juan Montojo ,  Xiaoxia Zhang

发明人： Peter Gaal ,  Xiliang Luo ,  Wanshi Chen ,  Juan Montojo ,  Xiaoxia Zhang

IPC分类号： H04L27/00

CPC分类号： H04L25/03343 ,  H04B7/0617 ,  H04B7/0639 ,  H04L1/06 ,  H04L1/1893 ,  H04L2025/03426

摘要： Systems and methodologies are described that facilitate cycling through precoders for transmitting wireless network communications in a time domain. The precoders can be cycled according to a precoder sequence for each data symbol transmission. When the last precoder is selected the cycle can begin again, a new precoder sequence can be received or defined, and/or the like. A precoder sequence related to a subset of precoders present in a wireless device can be defined sequentially, cyclically shifted according to an identifier or one or more communications parameters, randomly, pseudo-randomly according to an identifier or one or more communications parameters, and/or the like. In addition, the precoder sequence can be utilized to select a precoder for one or more retransmissions. Such cycling of precoders can increase transmit diversity.

摘要翻译： 描述了有助于循环通过用于在时域中发送无线网络通信的预编码器的系统和方法。 预编码器可以根据每个数据符号传输的预编码器序列循环。 当选择最后一个预编码器时，循环可以再次开始，可以接收或定义新的预编码器序列和/或类似物。 可以根据标识符或一个或多个通信参数根据标识符或一个或多个通信参数随机地随机地定义与存在于无线设备中的预编码器子集相关的预编码器序列和/ 或类似物。 此外，预编码器序列可用于为一个或多个重传选择预编码器。 预编码器的这种循环可以增加发射分集。

公开(公告)号：US09608780B2

公开(公告)日：2017-03-28

申请号：US12564670

申请日：2009-09-22

申请人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo ,  Wanshi Chen

发明人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo ,  Wanshi Chen

IPC分类号： H04L5/00 ,  H04B7/06 ,  H04L1/06 ,  H04L27/26

CPC分类号： H04L5/0023 ,  H04B7/0667 ,  H04B7/068 ,  H04L1/0618 ,  H04L27/2607

摘要： Techniques for transmitting data with transmit diversity for single-carrier frequency division multiple access (SC-FDMA) are described. In one design, a transmitter (e.g., a UE) may form a first symbol vector including first and second modulation symbol sequences. The transmitter may also form a second symbol vector including third and fourth modulation symbol sequences, which may be generated based on the second and first modulation symbol sequences, respectively. Each symbol vector may further include a cyclic prefix and possibly a cyclic postfix for each modulation symbol sequence. The transmitter may generate a first SC-FDMA symbol based on the first symbol vector and a second SC-FDMA symbol based on the second symbol vector. The transmitter may transmit the first and second SC-FDMA symbols from two transmit antennas in a single SC-FDMA symbol period to achieve transmit diversity.

公开(公告)号：US08891462B2

公开(公告)日：2014-11-18

申请号：US13106643

申请日：2011-05-12

申请人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Juan Montojo

发明人： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen ,  Tao Luo ,  Juan Montojo

IPC分类号： H04W4/00 ,  H04L5/00

CPC分类号： H04L5/0053

摘要： Certain aspects of the present disclosure provide techniques for determining resources for transmission of acknowledgement messages to a user equipment (UE). The techniques involve receiving a plurality of codewords from the UE via an uplink component carrier, and determining at least first and second index pairs identifying resources of a downlink channel to be used for transmitting acknowledgement messages for the received codewords. The first index pair is determined based on a first set of parameters, and the second index pair is determined based on the first set of parameters and a second set of one or more parameters. At least one of the parameters in the second set is a fixed value.

摘要翻译： 本公开的某些方面提供了确定用于向用户设备（UE）发送确认消息的资源的技术。 所述技术涉及经由上行链路分量载波从UE接收多个码字，并且确定至少第一和第二索引对，标识将被用于发送所接收的码字的确认消息的下行链路信道的资源。 基于第一组参数确定第一索引对，并且基于第一组参数和第二组一个或多个参数来确定第二索引对。 第二组中的至少一个参数是固定值。

公开(公告)号：US08817588B2

公开(公告)日：2014-08-26

申请号：US12909704

申请日：2010-10-21

申请人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo

发明人： Xiliang Luo ,  Peter Gaal ,  Juan Montojo

IPC分类号： H04J11/00

CPC分类号： H04L5/0001

摘要： Methods, devices and computer program products are provided to improve uplink communications in a wireless communication system. Reference symbols in an uplink transmission radio subframe are time-frequency multiplexed with additional data symbols. The multiplexed data symbols are transmitted in an uplink transmission to another device within the wireless communication network along with non-multiplexed data symbols. The multiplexing operations enable the transmission of additional data symbols without increasing the overhead associated with the transmission of symbols in the radio subframe.

摘要翻译： 提供方法，设备和计算机程序产品以改善无线通信系统中的上行链路通信。 上行链路传输无线电子帧中的参考符号与附加数据符号进行时间频率复用。 多路复用的数据符号在上行链路传输中与无复用数据符号一起发送到无线通信网络内的另一设备。 多路复用操作使得能够传输附加数据符号而不增加与无线电子帧中的符号传输相关联的开销。

公开(公告)号：US08688163B2

公开(公告)日：2014-04-01

申请号：US12976499

申请日：2010-12-22

申请人： Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei ,  Naga Bhushan

发明人： Wanshi Chen ,  Peter Gaal ,  Juan Montojo ,  Taesang Yoo ,  Xiliang Luo ,  Tao Luo ,  Yongbin Wei ,  Naga Bhushan

IPC分类号： H04B7/00

CPC分类号： H04W52/367 ,  H04W52/146 ,  H04W52/262 ,  H04W52/362

摘要： Methods and apparatus in a wireless communication system are described for receiving and processing transmit power control commands, where, for example, the response to the transmit power control commands is conditionally decoupled from at least one of a transmit bandwidth parameter, a transport format parameter and a power stepsize limit. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.

摘要翻译： 描述了用于接收和处理发射功率控制命令的无线通信系统中的方法和装置，其中例如对发射功率控制命令的响应有条件地从发射带宽参数，传输格式参数和 功率限幅。 本摘要仅用于遵守允许读者快速确定所披露的主题的抽象要求规则。 因此，应当理解，它不应用于解释或限制权利要求书的范围或含义。