公开(公告)号：US20150236838A1

公开(公告)日：2015-08-20

申请号：US14697673

申请日：2015-04-28

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Yan Zhang ,  Krishna Srikanth Gomadam

IPC: H04L5/00 ,  H04W24/02

CPC classification number: H04L5/0057 ,  H04L1/0029 ,  H04L5/0035 ,  H04W24/02 ,  H04W28/06

Abstract: A method includes receiving in a mobile communication terminal signals from multiple cells that coordinate transmission of the signals with one another in a Cooperative Multipoint (CoMP) scheme. At least first and second Channel Quality Indicators (CQIs), for respective communication channels over which the signals are received, are calculated in the terminal based on the received signals. The second CQI is differentially encoded relative to the first CQI. Feedback information, including the first CQI and the differentially-encoded second CQI, is transmitted from the terminal.

Abstract translation: 一种方法包括：在协作多点（CoMP）方案中，在移动通信终端中接收来自多个小区的信号，以协调信号彼此的传输。 至少第一和第二信道质量指示符（CQI），对于在其上接收信号的各个通信信道，在终端中基于所接收的信号来计算。 第二CQI相对于第一CQI进行差分编码。 从终端发送包括第一CQI和差分编码的第二CQI的反馈信息。

公开(公告)号：US09031597B2

公开(公告)日：2015-05-12

申请号：US13672727

申请日：2012-11-09

Applicant: Marvell World Trade Ltd.

Inventor： Yan Zhang ,  Krishna Srikanth Gomadam

IPC: H04B7/00 ,  H04W72/00 ,  H04B17/00 ,  H04W24/02 ,  H04L1/00 ,  H04L5/00 ,  H04W28/06

CPC classification number: H04L5/0057 ,  H04L1/0029 ,  H04L5/0035 ,  H04W24/02 ,  H04W28/06

Abstract: A method includes receiving in a mobile communication terminal signals from multiple cells that coordinate transmission of the signals with one another in a Cooperative Multipoint (CoMP) scheme. At least first and second Channel Quality Indicators (CQIs), for respective communication channels over which the signals are received, are calculated in the terminal based on the received signals. The second CQI is differentially encoded relative to the first CQI. Feedback information, including the first CQI and the differentially-encoded second CQI, is transmitted from the terminal.

Abstract translation: 一种方法包括：在协作多点（CoMP）方案中，在移动通信终端中接收来自多个小区的信号，以协调信号彼此的传输。 至少第一和第二信道质量指示符（CQI），对于在其上接收信号的各个通信信道，在终端中基于所接收的信号来计算。 第二CQI相对于第一CQI进行差分编码。 从终端发送包括第一CQI和差分编码的第二CQI的反馈信息。

公开(公告)号：US08923427B2

公开(公告)日：2014-12-30

申请号：US13669477

申请日：2012-11-06

Applicant: Marvell World Trade Ltd.

Inventor： Krishna Srikanth Gomadam

IPC: H04B7/02 ,  H04L1/02 ,  H04B7/04 ,  H04B7/06 ,  H04B1/38 ,  H04L1/00

CPC classification number: H04B1/38 ,  H04B7/0456 ,  H04B7/0469 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0619 ,  H04B7/0632 ,  H04B7/0641 ,  H04B7/066 ,  H04L1/0029 ,  H04L1/0031 ,  H04L5/0057

Abstract: A method includes, in a mobile communication terminal, holding a definition of a sub-sampled codebook identifying precoding matrices, which are selected from a master codebook that is made-up of a wideband codebook and a frequency-selective codebook. The definition defines a first subset of the wideband codebook and a second subset of the frequency-selective codebook. The second subset of the frequency-selective codebook is represented using no more than two bits. A Multiple-Input Multiple-Output (MIMO) signal is received in the terminal. Based on the received MIMO signal, one or more precoding matrices are selected from the sub-sampled codebook for precoding subsequent MIMO signals transmitted to the terminal, and precoding feedback indicating the selected precoding matrices is calculated. The precoding feedback is transmitted from the terminal.

Abstract translation: 一种方法包括在移动通信终端中保存从由宽带码本和频率选择码本构成的主码本中选择的识别预编码矩阵的子采样码本的定义。 该定义定义了宽带码本的第一子集和频率选择码本的第二子集。 使用不超过两位来表示频率选择码本的第二子集。 在终端中接收多输入多输出（MIMO）信号。 基于接收到的MIMO信号，从子采样码本中选择一个或多个预编码矩阵，用于对发送到终端的后续MIMO信号进行预编码，并且计算指示所选择的预编码矩阵的预编码反馈。 从终端发送预编码反馈。

公开(公告)号：US20130301447A1

公开(公告)日：2013-11-14

申请号：US13888385

申请日：2013-05-07

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Krishna Srikanth Gomadam

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B7/024 ,  H04B7/0413 ,  H04B7/063 ,  H04B7/0639 ,  H04W72/085

Abstract: A method includes receiving, in a communication terminal, signals from a group of cells. The group of cells cooperates in a Coordinated Multipoint (CoMP) transmission scheme that assigns multiple Channel State Information Reference Signals (CSI-RS) resources to the cells. A first subset of the CSI-RS resources is assigned to periodically report channel feedback on a first uplink channel, and a second subset of the CSI-RS resources is assigned to a-periodically report the channel feedback on a second uplink channel. The channel feedback is computed for the multiple CSI-RS resources. The channel feedback computed for the CSI-RS resources is transmitted in the first subset on the first uplink channel, and the channel feedback computed for the CSI-RS resources in the second subset is transmitted on the second uplink channel.

Abstract translation: 一种方法包括在通信终端中接收来自一组单元的信号。 该组小区在协调多点（CoMP）传输方案中协作，向多个小区分配多个信道状态信息参考信号（CSI-RS）资源。 分配CSI-RS资源的第一子集以在第一上行链路信道上周期性地报告信道反馈，并且将CSI-RS资源的第二子集分配给在第二上行链路信道上周期性地报告信道反馈。 针对多个CSI-RS资源计算信道反馈。 针对CSI-RS资源计算的信道反馈在第一上行链路信道上的第一子集中发送，并且针对第二子集中的CSI-RS资源计算的信道反馈在第二上行链路信道上被发送。

公开(公告)号：US20130223365A1

公开(公告)日：2013-08-29

申请号：US13774654

申请日：2013-02-22

Applicant: Marvell World Trade Ltd.

Inventor： Jihwan P. Choi ,  Jiwon S. Han ,  Krishna Srikanth Gomadam ,  Yakun Sun ,  Mingguang Xu ,  Hui-Ling Lou

IPC: H04W72/12

CPC classification number: H04W72/12 ,  H04L1/0001 ,  H04L1/1812 ,  H04L1/1848 ,  H04L1/188

Abstract: Systems, methods, apparatus, and techniques are provided for retransmitting packets of data. A Radio Link Control (RLC) layer data packet is generated, and the RLC layer data packet is converted to one or more physical (PHY) layer data packets. The one or more PHY layer data packets are transmitted. At least one of a hybrid automatic transmission request (HARQ) acknowledgement (ACK) message and a HARQ negative acknowledgment (NACK) message is received from a receiver in response to transmission of the one or more PHY layer data packets. It is determined whether the at least one of the HARQ ACK message and the HARQ NACK message represents a automatic transmission request (ARQ) ACK message or a ARQ NACK message.

Abstract translation: 提供了用于重传数据分组的系统，方法，装置和技术。 产生无线电链路控制（RLC）层数据分组，并且将RLC层数据分组转换成一个或多个物理（PHY）层数据分组。 发送一个或多个PHY层数据分组。 响应于一个或多个PHY层数据分组的传输，从接收机接收混合自动传输请求（HARQ）确认（ACK）消息和HARQ否定确认（NACK）消息中的至少一个。 确定HARQ ACK消息和HARQ NACK消息中的至少一个是否表示自动传输请求（ARQ）ACK消息或ARQ NACK消息。

公开(公告)号：US20130156123A1

公开(公告)日：2013-06-20

申请号：US13766790

申请日：2013-02-14

Applicant: Marvell World Trade Ltd.

Inventor： Yona Perets ,  Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin ,  Ezer Melzer

IPC: H04B7/04

CPC classification number: H04B7/0473 ,  H04L1/0009 ,  H04L1/0656 ,  H04L1/0675 ,  H04L5/0025

Abstract: A method for communication includes, in a transmitter having a first number of transmit antenna ports, setting an upper limit on a second number of spatial layers to be used by the transmitter to be less than the first number. An actual number of the spatial layers, which does not exceed the upper limit, is allocated for transmission to a given receiver. One or more streams of modulated symbols are mapped onto the allocated actual number of the spatial layers. The actual number of the spatial layers are transmitted from the transmitter to the given receiver.

Abstract translation: 一种用于通信的方法包括：在具有第一数量的发射天线端口的发射机中，将发射机使用的第二数量的空间层的上限设置为小于第一数量。 空间层的实际数量（不超过上限）被分配用于传送给给定的接收机。 调制符号的一个或多个流被映射到所分配的实际数量的空间层上。 空间层的实际数量从发射机发射到给定的接收机。

公开(公告)号：US20130059596A1

公开(公告)日：2013-03-07

申请号：US13669481

申请日：2012-11-06

Applicant: MARVELL WORLD TRADE LTD.

Inventor： Krishna Srikanth Gomadam ,  Adoram Erell ,  Daniel Yellin

IPC: H04W24/10

CPC classification number: H04W24/10 ,  H04B17/24

Abstract: A method includes, in a mobile communication terminal, receiving from at least first and second base stations, which cooperate in a coordinated transmission scheme, signals that are transmitted over respective first and second communication channels. Respective channel measures are calculated for the communication channels based on the received signals. First and second feedback data, which are indicative of the respective channel measures of the first and second communication channels, are formulated such that the first feedback data has a first data size and the second feedback data has a second data size, different from the first data size. The first and second feedback data are transmitted from the mobile communication terminal to at least one of the base stations.

Abstract translation: 一种方法包括在移动通信终端中，从协调传输方案中协作的至少第一和第二基站接收在各个第一和第二通信信道上发送的信号。 基于接收到的信号，为通信信道计算各个信道量度。 表示第一和第二通信信道的相应信道测量值的第一和第二反馈数据被配置为使得第一反馈数据具有第一数据大小，并且第二反馈数据具有与第一数据大小不同的第二数据大小 数据大小。 第一和第二反馈数据从移动通信终端发送到至少一个基站。