公开(公告)号：US20090290550A1

公开(公告)日：2009-11-26

申请号：US12465422

申请日：2009-05-13

Applicant: Kapil Bhattad ,  Ravi Palanki

Inventor： Kapil Bhattad ,  Ravi Palanki

IPC: H04W72/04 ,  H04B15/00 ,  H04B7/00

CPC classification number: H04L5/0073 ,  H04L1/0001 ,  H04L1/1867 ,  H04L5/0053 ,  H04W28/04 ,  H04W28/18 ,  H04W72/0406 ,  H04W72/082

Abstract: Systems and methodologies are described that facilitate improved resource partitioning and interference management in a wireless communication system. Techniques are described herein for the transmission and use of various types of signaling, such as Access Request commands, Reverse Link Special Resource Utilization Message (R-SRUM) signaling, Forward Link Special Resource Utilization Message (F-SRUM) signaling, and the like, for managing interference associated with range extension, restricted association networks, and other jamming scenarios. As described herein, downlink resource coordination and interference management are accomplished through the use of Access Request or R-SRUM signaling conducted in a unicast or broadcast fashion, and uplink resource coordination and interference management are accomplished through the use of F-SRUM signaling. As further described herein, a clean communication channel such as a Low Reuse Preamble (LRP) channel can be utilized for interference management signaling and/or leveraged for determining timing of various signaling messages.

Abstract translation: 描述了有助于在无线通信系统中改进资源划分和干扰管理的系统和方法。 本文描述了用于传输和使用各种类型的信令的技术，诸如接入请求命令，反向链路特殊资源利用消息（R-SRUM）信令，前向链路特殊资源利用消息（F-SRUM）信令等等 用于管理与范围扩展相关的干扰，受限关联网络和其他干扰场景。 如本文所述，通过使用以单播或广播方式进行的接入请求或R-SRUM信令来实现下行链路资源协调和干扰管理，并且通过使用F-SRUM信令来实现上行链路资源协调和干扰管理。 如本文进一步描述的，诸如低重用前导码（LRP）信道的干净通信信道可以用于干扰管理信令和/或用于确定各种信令消息的定时。

公开(公告)号：US11116001B2

公开(公告)日：2021-09-07

申请号：US16603736

申请日：2018-05-09

Applicant: QUALCOMM Incorporated ,  Chao Wei ,  Kapil Bhattad ,  Alberto Rico Alvarino

Inventor： Chao Wei ,  Kapil Bhattad ,  Alberto Rico Alvarino ,  Hao Xu

IPC: H04W72/14 ,  H04W4/70

Abstract: A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The apparatus may receive a grant identifying an uplink resource allocation of less than one physical resource block (PRB), wherein the grant identifies a particular PRB in which the uplink resource allocation is included and at least a group of subcarriers allocated for the apparatus; and transmit uplink data using the uplink resource allocation. Numerous other aspects are described.

公开(公告)号：US09407409B2

公开(公告)日：2016-08-02

申请号：US13032592

申请日：2011-02-22

Applicant: Kapil Bhattad ,  Peter Gaal ,  Tao Luo ,  Xiaoxia Zhang ,  Juan Montojo

Inventor： Kapil Bhattad ,  Peter Gaal ,  Tao Luo ,  Xiaoxia Zhang ,  Juan Montojo

IPC: H04B7/216 ,  H04L5/00 ,  H04L1/06 ,  H04L27/26

CPC classification number: H04L5/0048 ,  H04L1/0606 ,  H04L1/0618 ,  H04L1/0668 ,  H04L5/0007 ,  H04L5/001 ,  H04L5/0016 ,  H04L5/0023 ,  H04L5/0035 ,  H04L5/0051 ,  H04L5/0053 ,  H04L5/0073 ,  H04L27/261 ,  H04W72/04

Abstract: In a wireless communication system, from available data resource elements (REs) in a subframe, REs are assigned to transmissions of a reference signal, thereby resulting in a plurality of remaining data REs. Furthermore, REs from the plurality of remaining data REs are assigned for data transmission to a wireless device in groups of a predetermined number of REs such that all assigned data REs within a group are within a predetermined number of symbols of each other in time domain and within a second predetermined number of subcarriers of each other in frequency domain, thereby resulting in at least one ungrouped RE.

Abstract translation: 在无线通信系统中，从子帧中的可用数据资源元素（RE）中，将RE分配给参考信号的传输，由此导致多个剩余数据RE。 此外，来自多个剩余数据RE的RE被分配用于以预定数量的RE的组的数据传输到无线设备，使得一组内的所有分配的数据RE在时域中彼此之间的预定数量的符号内;以及 在频域中彼此的第二预定数量的子载波内，从而导致至少一个未分组的RE。

公开(公告)号：US09344246B2

公开(公告)日：2016-05-17

申请号：US13267715

申请日：2011-10-06

Applicant: Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal

Inventor： Kapil Bhattad ,  Wanshi Chen ,  Peter Gaal

IPC: H04B7/14 ,  H04L5/00 ,  H04B7/26 ,  H04W84/04

CPC classification number: H04L5/0051 ,  H04B7/2606 ,  H04L5/0023 ,  H04L5/0053 ,  H04L5/0094 ,  H04W84/047

Abstract: Aspects of the present disclosure relate to methods for allowing a relay base station to more efficiently decode relay control information transmitted from a donor base station. A relay base station may determine a configuration of resource elements used for transmission of reference signals and decode sets of resource elements based on the configuration of reference signals. According to aspects, a donor base station may transmit relay control information in a data portion of a subframe based on the configuration of reference signals transmitted by the donor base station.

Abstract translation: 本公开的方面涉及允许中继基站更有效地解码从授权基站发送的中继控制信息的方法。 中继基站可以基于参考信号的配置来确定用于参考信号的传输的资源元素的配置和解码资源元素集合。 根据方面，供体基站可以基于由供体基站发送的参考信号的配置在子帧的数据部分中发送中继控制信息。

公开(公告)号：US09294219B2

公开(公告)日：2016-03-22

申请号：US12568255

申请日：2009-09-28

Applicant: Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

Inventor： Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

IPC: H04L1/00 ,  H04W28/00 ,  H04B7/26 ,  H04B7/155 ,  H04J3/08 ,  H04L5/00 ,  H04W4/06

CPC classification number: H04L1/0023 ,  H04B7/15557 ,  H04B7/2606 ,  H04J3/08 ,  H04L1/0001 ,  H04L5/0037 ,  H04W4/06 ,  H04W28/00

Abstract: Techniques for supporting operation of relay stations in wireless communication systems are described. In an aspect, a base station may transmit data to a relay station in a portion of a subframe instead of the entire subframe. The relay station may transmit control information during part of the subframe. The base station may transmit data to the relay station during the remaining part of the subframe. In another aspect, a target termination for a packet may be selected based on data and/or ACK transmission opportunities available for the packet. One or more transmissions of the packet may be sent with HARQ, and ACK information may be sent for the packet. The packet may be transmitted such that it can be terminated prior to the first subframe (i) not available for sending the packet or (ii) available for sending ACK information.

Abstract translation: 描述了用于支持无线通信系统中的中继站的操作的技术。 在一方面，基站可以在子帧的一部分而不是整个子帧中向中继站发送数据。 中继站可以在子帧的一部分期间发送控制信息。 基站可以在子帧的剩余部分期间向中继站发送数据。 在另一方面，可以基于可用于分组的数据和/或ACK传输机会来选择分组的目标终止。 可以用HARQ发送分组的一个或多个传输，并且可以为分组发送ACK信息。 可以发送分组，使得其可以在第一子帧（i）不可用于发送分组之前终止，或者（ii）可用于发送ACK信息。

公开(公告)号：US09203564B2

公开(公告)日：2015-12-01

申请号：US12580872

申请日：2009-10-16

Applicant: Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

Inventor： Ravi Palanki ,  Kapil Bhattad ,  Naga Bhushan ,  Aamod D. Khandekar ,  Tingfang Ji ,  Juan Montojo

IPC: H04L1/18 ,  H04B7/26

CPC classification number: H04L1/1867 ,  H04B7/2606

Abstract: Techniques for supporting data transmission via a relay station are described. In an aspect, data transmission may be supported using ACK-and-suspend. A transmitter station sends a first transmission of a packet to a receiver station. The transmitter station receives no ACK information for the first transmission of the packet and suspends transmission of the packet. The transmitter station thereafter receives an indication to resume transmission of the packet and, in response, sends a second transmission of the packet. In another aspect, different ACK timeline may be used when applicable. The receiver station may send ACK information in a designated subframe if available for use or in a different subframe. In yet another aspect, ACK repetition may be used. The receiver may send ACK information in multiple subframes to facilitate reception of the ACK information when the transmitter station is unable to receive one or more of the multiple subframes.

Abstract translation: 描述了通过中继站支持数据传输的技术。 在一方面，可以使用ACK和挂起来支持数据传输。 发送站发送分组的第一次发送到接收站。 发送台不接收用于分组的第一次发送的ACK信息，并且暂停分组的发送。 然后，发送站接收到恢复分组的发送的指示，并且作为响应，发送分组的第二发送。 在另一方面，当适用时可以使用不同的ACK时间线。 接收站可以在指定的子帧中发送ACK信息，如果可以使用或在不同的子帧中。 在另一方面，可以使用ACK重复。 接收机可以在多个子帧中发送ACK信息，以便当发射机站不能接收多个子帧中的一个或多个时，接收ACK信息。

公开(公告)号：US09143955B2

公开(公告)日：2015-09-22

申请号：US13101877

申请日：2011-05-05

Applicant: Xiaoxia Zhang ,  Ke Liu ,  Kapil Bhattad ,  Taesang Yoo ,  Tao Luo

Inventor： Xiaoxia Zhang ,  Ke Liu ,  Kapil Bhattad ,  Taesang Yoo ,  Tao Luo

IPC: H04W4/00 ,  H04W24/02 ,  H04W48/08 ,  H04W16/14

CPC classification number: H04W24/02 ,  H04W16/14 ,  H04W48/08

Abstract: Physical-Layer Cell Identifier (PCID) collisions may occur in a wireless network when two neighboring evolved Node Bs (eNBs) having different Global Cell Identifiers (GCID) select identical PCIDs. Evolved Node Bs may uniquely identify themselves by transmitting on a broadcast channel, such as a Physical Broadcast Channel (PBCH), a pattern of bits corresponding to the eNB's GCID. Individual User Equipments (UEs) may recognize the PCID collision by decoding the PBCH payload to identify different GCID-modulated payloads from two eNBs involved in the PCID collision. Alternatively, UEs may detect PCID collisions in the wireless network by monitoring Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS) on the PBCH for identical signals separated by a relatively large time offset. After detecting a PCID collision, the UEs may attempt by best effort to report the PCID collision, may report to a fallback eNB, or the UEs may use special resources on an uplink channel.

Abstract translation: 当具有不同的全局小区标识符（GCID）的两个相邻演进节点B（eNB）选择相同的PCID时，物理层小区标识符（PCID）冲突可能发生在无线网络中。 演进节点B可以通过在诸如物理广播信道（PBCH）的广播信道上发送与eNB的GCID相对应的比特模式来唯一地标识自身。 个体用户设备（UE）可以通过解码PBCH净荷来识别PCID冲突，从而识别来自涉及PCID冲突的两个eNB的不同GCID调制的有效载荷。 或者，UE可以通过监视PBCH上的主同步信号（PSS）和次同步信号（SSS）来检测无线网络中的PCID冲突，用相对较大的时间偏移分开的相同信号。 在检测到PCID冲突之后，UE可以尽最大努力报告PCID冲突，可以向后退eNB报告，或者UE可以在上行链路信道上使用特殊资源。

公开(公告)号：US09014287B2

公开(公告)日：2015-04-21

申请号：US13214024

申请日：2011-08-19

Applicant: Xiliang Luo ,  Peter Gaal ,  Hao Xu ,  Tao Luo ,  Kapil Bhattad ,  Juan Montojo ,  Wanshi Chen

Inventor： Xiliang Luo ,  Peter Gaal ,  Hao Xu ,  Tao Luo ,  Kapil Bhattad ,  Juan Montojo ,  Wanshi Chen

IPC: H04B7/02 ,  H04L1/02 ,  H04L25/03 ,  H04L1/00 ,  H04B7/04 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04L5/0023 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/0486 ,  H04L1/0031 ,  H04L1/1896 ,  H04L5/0053 ,  H04L5/0091 ,  H04L25/03343 ,  H04L25/03891 ,  H04W72/042

Abstract: A precoding scheme to accommodate user equipment (UEs) having higher Doppler speeds. In such transmission schemes, a different precoding matrix is applied to each orthogonal frequency division multiplex (OFDM) symbol in the transmission stream. Additionally, a downlink control message format is defined to handle assignment of multiple different transmission schemes using the same message format. The downlink control message format includes a control element in one of the message fields along with a set of parameters specifically applicable to the assigned transmission scheme. Based on the value of this control element, the UE sets the specific transmission scheme and determines a set of interpretation rules uniquely associated with that transmission scheme. Using the interpretation rules, the UE is able to read the set of parameters as applied to the selected transmission scheme.

Abstract translation: 一种用于适应具有更高多普勒速度的用户设备（UE）的预编码方案。 在这种传输方案中，将不同的预编码矩阵应用于传输流中的每个正交频分复用（OFDM）符号。 另外，下行链路控制消息格式被定义为使用相同的消息格式来处理多个不同传输方案的分配。 下行链路控制消息格式包括在消息字段之一中的控制元素以及特定适用于所分配的传输方案的一组参数。 基于该控制元件的值，UE设置特定的传输方案并且确定与该传输方案唯一相关联的一组解释规则。 使用解释规则，UE能够读取应用于所选传输方案的一组参数。

公开(公告)号：US08983389B2

公开(公告)日：2015-03-17

申请号：US13009174

申请日：2011-01-19

Applicant: Kapil Bhattad ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Juan Montojo ,  Naga Bhushan

Inventor： Kapil Bhattad ,  Peter Gaal ,  Alexei Yurievitch Gorokhov ,  Juan Montojo ,  Naga Bhushan

IPC: H04B1/00 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0452 ,  H04B7/0689 ,  H04B7/0871

Abstract: Certain aspects of the present disclosure propose methods and apparatuses for detecting whether a user device is scheduled for a single user (SU) multiple-input multiple-output (MIMO) communication mode or for a multi-user (MU) MIMO communication mode. In an aspect, a method for wireless communications is provided which includes measuring, at a first apparatus based on received pilot signals, a first receive power corresponding to a first channel associated with the first apparatus, measuring, based on the received pilot signals, a second receive power corresponding to a second channel associated with at least one potentially present second apparatus, measuring a residual interference based on the received pilot signals, and determining, based on at least one of the first receive power, the second receive power and the residual interference, whether to apply a MU detection or a SU detection for estimating data received at the first apparatus.

Abstract translation: 本公开的某些方面提出了用于检测是否为单用户（SU）多输入多输出（MIMO）通信模式或多用户（MU）MIMO通信模式）调度用户设备的方法和装置。 一方面，提供了一种用于无线通信的方法，其包括在第一装置基于接收到的导频信号测量与第一装置相关联的第一信道对应的第一接收功率，基于接收到的导频信号， 对应于与至少一个潜在存在的第二装置相关联的第二信道的第二接收功率，基于接收到的导频信号测量残余干扰，以及基于所述第一接收功率，所述第二接收功率和所述残差中的至少一个来确定 干扰，是否应用MU检测或SU检测来估计在第一装置处接收到的数据。

公开(公告)号：US08934560B2

公开(公告)日：2015-01-13

申请号：US13253747

申请日：2011-10-05

Applicant: Kapil Bhattad ,  Peter Gaal

Inventor： Kapil Bhattad ,  Peter Gaal

IPC: H04B7/02 ,  H04L25/03 ,  H04B7/04 ,  H04B7/06 ,  H04L5/00

CPC classification number: H04B7/0486 ,  H04B7/0478 ,  H04B7/0617 ,  H04B7/0671 ,  H04L5/0023 ,  H04L25/03343 ,  H04L2025/03426

Abstract: A method and apparatus of wireless communication are disclosed. The wireless communication performs pilot signal transmissions using a first precoding matrix for user equipment specific pilot signals, the pilot signal transmissions having a first transmission rank. The wireless communication also performs data transmissions using a second precoding matrix for data when the data transmissions have a second transmission rank less than the first transmission rank, in which the second precoding matrix includes a transformed version of the first precoding matrix. Alternatively, the wireless communication can perform data transmissions using at least two precoding matrices for data when the data transmissions have a second transmission rank less than or equal to the first transmission rank. Accordingly, the precoding matrix used for data is a transformed version of the precoding matrix used for user equipment specific pilot signals.

Abstract translation: 公开了一种无线通信的方法和装置。 无线通信使用用于用户设备专用导频信号的第一预编码矩阵来执行导频信号传输，导频信号传输具有第一传输等级。 当数据传输具有小于第一传输秩的第二传输级时，无线通信还使用用于数据的第二预编码矩阵执行数据传输，其中第二预编码矩阵包括第一预编码矩阵的变换版本。 或者，当数据传输具有小于或等于第一传输等级的第二传输等级时，无线通信可以使用用于数据的至少两个预编码矩阵来执行数据传输。 因此，用于数据的预编码矩阵是用于用户设备专用导频信号的预编码矩阵的变换版本。