公开(公告)号：US08737502B2

公开(公告)日：2014-05-27

申请号：US12687576

申请日：2010-01-14

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

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

IPC: H04B7/02

CPC classification number: H04B7/0678 ,  H04B7/0684 ,  H04B7/0697

Abstract: 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.

Abstract translation: 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：US08699386B2

公开(公告)日：2014-04-15

申请号：US13212084

申请日：2011-08-17

Applicant: Wanshi Chen ,  Juan Montojo

Inventor： Wanshi Chen ,  Juan Montojo

IPC: H04J3/00

CPC classification number: H04L1/1854 ,  H04B7/155 ,  H04L1/1861 ,  H04L5/0053 ,  H04L2001/0097

Abstract: A method for wireless communication is provided, at a half-duplex node operating in TDD mode and may be used with an eNB in an LTE system. The method comprises receiving a configuration of a first set of subframes for a first link communication containing at least one downlink subframe and at least one uplink subframe. A second set of subframes for a second link communication is then determined. This second set includes at least one backward compatible downlink hybrid automatic repeat request process and at least one backward compatible uplink hybrid automatic repeat request process utilizing a second set of subframes. Communication begins with a first set of nodes using the first link and the first set of subframes. A second set of nodes using the second link and the second set of subframes is also used for communication. Communication to a legacy node is also supported.

Abstract translation: 在TDD模式下工作的半双工节点提供无线通信方法，并且可以与LTE系统中的eNB一起使用。 该方法包括：接收包含至少一个下行链路子帧和至少一个上行链路子帧的第一链路通信的第一组子帧的配置。 然后确定用于第二链路通信的第二组子帧。 该第二组包括至少一个后向兼容下行链路混合自动重传请求过程和利用第二组子帧的至少一个后向兼容上行链路混合自动重传请求过程。 通信开始于使用第一链路和第一组子帧的第一组节点。 使用第二链路和第二组子帧的第二组节点也用于通信。 还支持与遗留节点的通信。

公开(公告)号：US08681651B2

公开(公告)日：2014-03-25

申请号：US13288172

申请日：2011-11-03

Applicant: Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo

Inventor： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal ,  Juan Montojo

IPC: G01R31/08

CPC classification number: H04W72/0426 ,  H04L5/0032 ,  H04L25/0226

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US08670410B2

公开(公告)日：2014-03-11

申请号：US13232934

申请日：2011-09-14

Applicant: Xiliang Luo ,  Peter Gaal ,  Wanshi Chen

Inventor： Xiliang Luo ,  Peter Gaal ,  Wanshi Chen

IPC: H04W4/00

CPC classification number: H04L1/1607 ,  H04L1/1861 ,  H04L5/0053 ,  H04L2001/0096

Abstract: In a multi-carrier wireless communication system, component carrier configuration and reconfiguration uses uplink control channel resource mapping with fallback configurations to maintain alignment between a user equipment and a base station during reconfiguration.

Abstract translation: 在多载波无线通信系统中，分量载波配置和重配置使用具有回退配置的上行链路控制信道资源映射，以在重配置期间维持用户设备与基站之间的对准。

公开(公告)号：US08670396B2

公开(公告)日：2014-03-11

申请号：US12890452

申请日：2010-09-24

Applicant: Xiliang Luo ,  Wanshi Chen ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Juan Montojo

Inventor： Xiliang Luo ,  Wanshi Chen ,  Jelena M. Damnjanovic ,  Peter Gaal ,  Juan Montojo

IPC: H04W4/00

CPC classification number: H04W72/1268 ,  H01Q3/2605 ,  H04W52/146 ,  H04W52/325 ,  H04W72/04

Abstract: Systems and methods for resource allocation for an uplink control channel for a user equipment (UE) using multiple transmit antennas in a wireless communication network are disclosed. A plurality of orthogonal resources for use by the UE on the uplink control channel is selected. Control information is transmitted from the UE on the uplink control channel on the plurality of orthogonal resources with transmit diversity.

Abstract translation: 公开了用于在无线通信网络中使用多个发射天线的用户设备（UE）的上行链路控制信道的资源分配的系统和方法。 选择由UE在上行链路控制信道上使用的多个正交资源。 在具有发送分集的多个正交资源上的上行链路控制信道上，从UE发送控制信息。

公开(公告)号：US08634362B2

公开(公告)日：2014-01-21

申请号：US12890275

申请日：2010-09-24

Applicant: Juan Montojo ,  Tao Luo ,  Wanshi Chen

Inventor： Juan Montojo ,  Tao Luo ,  Wanshi Chen

IPC: H04W4/00

CPC classification number: H04L5/0048 ,  H04B7/0452 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/03038

Abstract: Methods and apparatuses are provided that facilitate generating sequences for transmitting reference signals (RS) based at least in part on a cell identifier or other parameters common for a plurality of cells. Where the plurality of cells provide similar joint uplink resources to a device in multi-user multiple-input multiple-output (MIMO), the device can transmit a signal to the plurality of cells over the joint uplink resources. For RSs transmitted according to a sequence generated based on a cell specific identifier or other parameters, the device can utilize a cell identifier, or other parameters, common to the plurality of cells such that the plurality of cells can all decode the RSs. In this regard as well, the plurality of cells can each receive or generate the common cell identifier or other parameters to properly decode the RSs.

Abstract translation: 提供方法和装置，其至少部分地基于小区标识符或多个小区所共有的其它参数，生成用于发送参考信号（RS）的序列。 在多个小区在多用户多输入多输出（MIMO）中向设备提供类似的联合上行链路资源的情况下，设备可以通过联合上行链路资源向多个小区发送信号。 对于根据基于小区特定标识符或其他参数生成的序列发送的RS，该设备可以利用多个小区共用的小区标识符或其他参数，使得多个小区可以全部解码RS。 在这一点上，多个小区可以各自接收或生成公共小区标识符或其他参数以便正确解码RS。

公开(公告)号：US08625652B2

公开(公告)日：2014-01-07

申请号：US11971053

申请日：2008-01-08

Applicant: Wanshi Chen

Inventor： Wanshi Chen

IPC: H04B1/00

CPC classification number: H04L1/1887

Abstract: Techniques for supporting data transmission with little or no control overhead are described. In an aspect, data may be sent based on a hybrid scheme that utilizes a combination of group hopping for transmissions of new packets and static grouping for retransmissions of pending packets. For the hybrid scheme, a user equipment (UE) may be assigned different resource blocks in different transmission intervals based on a hopping pattern. The first transmission of new packets may be sent on resource blocks determined based on the hopping pattern. Retransmissions of each packet, if any, may be sent on the resource block used for the first transmission of the packet. The UE may perform blind decoding to recover packets sent to the UE. In another aspect, semi-static group assignment may be used, and the UE may be assigned a group of resource blocks that may change periodically or based on trigger events.

Abstract translation: 描述用于支持数据传输的技术很少或者没有控制开销。 在一个方面，可以基于混合方案来发送数据，所述混合方案利用用于新分组的传输的组跳频的组合以及用于重传未决分组的静态分组。 对于混合方案，可以基于跳频模式在不同的传输间隔中为用户设备（UE）分配不同的资源块。 可以在基于跳频图案确定的资源块上发送新分组的第一次传输。 可以在用于分组的第一次传输的资源块上发送每个分组的重传（如果有的话）。 UE可以执行盲解码以恢复发送给UE的分组。 在另一方面，可以使用半静态组分配，并且可以向UE分配可以周期性地或基于触发事件改变的资源块组。

公开(公告)号：US08600424B2

公开(公告)日：2013-12-03

申请号：US12816134

申请日：2010-06-15

Applicant: Wanshi Chen ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tingfang Ji

Inventor： Wanshi Chen ,  Juan Montojo ,  Aamod Dinkar Khandekar ,  Tingfang Ji

IPC: H04W74/00

CPC classification number: H04W52/325 ,  H04W52/143 ,  H04W52/243 ,  H04W52/244 ,  H04W52/322

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided in which it is determined that a transmission of a first instance of control information in a first control region in a subframe of a first power class eNodeB a non-modified power spectral density (PSD) will result in interference above a threshold with a transmission of a second instance of control information in a second control region in a subframe of a second power class eNodeB, PSD is modified for a portion of at least one of the first or second control regions of at least one of the subframes for at least one of the first power class or second power class eNodeB, and the first instance of control information is transmitted during the control region using the modified PSD for the portion of the first instance of control information.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机程序产品，其中确定在第一功率等级eNodeB的子帧中的第一控制区域中的第一控制信息的第一实例的传输是未修改的功率 频谱密度（PSD）将导致高于阈值的干扰，其中在第二功率级eNodeB的子帧中的第二控制区域中传输第二控制信息，PSD被修改为第一 或用于第一功率级或第二功率级eNodeB中的至少一个的至少一个子帧的第二控制区域和控制信息的第一实例在控制区域期间使用用于第一实例的部分的修改的PSD 的控制信息。

公开(公告)号：US08576755B2

公开(公告)日：2013-11-05

申请号：US12987451

申请日：2011-01-10

Applicant: Dung Ngoc Doan ,  Wanshi Chen ,  Ravi Palanki ,  Parag Arun Agashe ,  Aamod Dinkar Khandekar ,  Juan Montojo

Inventor： Dung Ngoc Doan ,  Wanshi Chen ,  Ravi Palanki ,  Parag Arun Agashe ,  Aamod Dinkar Khandekar ,  Juan Montojo

IPC: H04J1/00

CPC classification number: H04B7/2606 ,  H04B7/155 ,  H04L5/0048 ,  H04L27/2602 ,  H04W56/00

Abstract: An apparatus and method for establishing a relay transition time in a network node in a wireless communication system comprising comparing a network node transmit/receive (TX/RX) switch time to a switch threshold; and using a fraction of the cyclic prefix (CP) as a guard period if the network node TX/RX switch time is less than or equal to the switch threshold, or using a sounding reference signal (SRS) configured channel to blank out a last symbol if the network node TX/RX switch time is greater than the switch threshold.

Abstract translation: 一种用于在无线通信系统中的网络节点中建立中继转移时间的装置和方法，包括将网络节点发送/接收（TX / RX）切换时间与切换阈值进行比较; 并且如果网络节点TX / RX切换时间小于或等于切换阈值，或者使用探测参考信号（SRS）配置的信道来清除最后一个信道，则使用一部分循环前缀（CP）作为保护周期 网络节点TX / RX切换时间大于开关阈值时的符号。

公开(公告)号：US08531962B2

公开(公告)日：2013-09-10

申请号：US12431424

申请日：2009-04-28

Applicant: Wanshi Chen ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo

Inventor： Wanshi Chen ,  Xiaoxia Zhang ,  Peter Gaal ,  Juan Montojo

IPC: G01R31/08

CPC classification number: H04W72/04 ,  H04L1/1854 ,  H04L1/1861 ,  H04L5/0007 ,  H04L5/0053 ,  H04L5/0064 ,  H04L5/0091

Abstract: 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.

Abstract translation: 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。