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    INTERFERENCE MITIGATION FOR DOWNLINK IN A WIRELESS COMMUNICATION SYSTEM
    12.
    发明申请
    INTERFERENCE MITIGATION FOR DOWNLINK IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中的下行干扰抑制

    公开(公告)号：US20160119022A1

    公开(公告)日：2016-04-28

    申请号：US14991874

    申请日：2016-01-08

    Applicant: QUALCOMM Incorporated

    Inventor： Alexei Y. Gorokhov ,  Avneesh Agrawal

    IPC: H04B1/7103

    CPC classification number: H04B1/7103 ,  H04B2201/70702

    Abstract: Techniques for mitigating interference in a wireless communication system are described. In an aspect, pertinent transmission parameters for a served UE may be sent to at least one interfered UE to support interference mitigation. In one design, information for at least one transmission parameter for a data transmission sent by a first cell to a first UE may be transmitted to at least one UE served by a second cell to enable the at least one UE to perform interference mitigation for the data transmission sent by the first cell to the first UE. The information may be transmitted by either the first cell or the second cell. In another aspect, a cell may send transmission parameters for a UE via a pilot. In yet another aspect, scrambling may be performed by a cell at symbol level to enable an interfered UE to distinguish between modulation symbols of desired and interfering transmissions.

    Abstract translation: 描述了用于减轻无线通信系统中的干扰的技术。 在一方面，可以将所服务的UE的相关传输参数发送到至少一个受干扰的UE以支持干扰减轻。 在一种设计中，用于由第一小区向第一UE发送的用于数据传输的至少一个传输参数的信息可以被发送到由第二小区服务的至少一个UE，以使得至少一个UE能够执行干扰减轻 由第一小区向第一UE发送的数据传输。 信息可以由第一小区或第二小区发送。 在另一方面，小区可以经由导频向UE发送传输参数。 在另一方面，可以由符号级别的小区执行加扰，以使被干扰的UE能够区分期望的和干扰的传输的调制符号。

    MULTI-CARRIER OPERATION IN A WIRELESS COMMUNICATION NETWORK
    13.
    发明申请
    MULTI-CARRIER OPERATION IN A WIRELESS COMMUNICATION NETWORK 有权

    公开(公告)号：US20150023259A1

    公开(公告)日：2015-01-22

    申请号：US14313780

    申请日：2014-06-24

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Palanki ,  Alexei Y. Gorokhov

    IPC: H04W72/08 ,  H04W24/02

    CPC classification number: H04W72/082 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0073 ,  H04L27/2601 ,  H04W24/02 ,  H04W52/244

    Abstract: Techniques for communicating on multiple carriers in a wireless communication network are described. In an aspect, different transmit power levels may be used for different carriers to mitigate interference. A first base station may be assigned one or more carriers among multiple carriers available for communication. A second base station may be assigned one or more carriers not assigned to the first base station. Each base station may communicate on each assigned carrier at a first (e.g., full) transmit power level and may communicate on each unassigned carrier at a second (e.g., lower) transmit power level lower. The first and second base stations may belong in different power classes or support different association types. In another aspect, control information may be sent on a designated carrier to support communication on multiple carriers. In yet another aspect, a base station may broadcast bar information indicating the status of carriers.

    METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM
    14.
    发明申请
    METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM 有权
    用于N-MIMO通信系统中干扰报告的方法和装置

    公开(公告)号：US20130219055A1

    公开(公告)日：2013-08-22

    申请号：US13847709

    申请日：2013-03-20

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Palanki ,  Alexei Y. Gorokhov ,  Naga Bhushan

    IPC: H04W24/00

    CPC classification number: H04W24/00 ,  H04B17/24 ,  H04B17/345 ,  H04J11/0053 ,  H04L1/0026 ,  H04L1/0028 ,  H04L1/02 ,  H04L5/0023 ,  H04L5/0035 ,  H04L2001/0092 ,  H04W72/0426 ,  H04W72/085 ,  Y02D70/1222 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146

    Abstract: Systems and methodologies are described herein that facilitate interference measurement and reporting in a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, a network device can measure and report interference corresponding to network nodes outside a designated set of nodes that can cooperatively serve the device. Respective interference reports can additionally identify dominant interfering nodes, correlation between transmit antennas of respective nodes, or the like. Subsequently, respective interference reports can be combined with per-node channel information to manage coordination and scheduling across respective network nodes. As further described herein, interference from a network node can be measured by observing reference and/or synchronization signals from the network node. To aid such observation, respective non-interfering network nodes can define null pilot intervals in which transmission is silenced or otherwise reduced. As additionally described herein, loading information broadcasted by respective interfering network nodes can be identified and utilized in connection with interference calculation.

    Abstract translation: 本文描述了促进网络多输入多输出（N-MIMO）通信系统中的干扰测量和报告的系统和方法。 如本文所述，网络设备可以测量和报告对应于可以协作地服务于设备的指定节点集合之外的网络节点的干扰。 相应的干扰报告可以另外识别主要干扰节点，相应节点的发射天线之间的相关性等。 随后，各个干扰报告可以与每个节点的信道信息组合以管理跨各个网络节点的协调和调度。 如本文进一步描述的，可以通过观察来自网络节点的参考和/或同步信号来测量来自网络节点的干扰。 为了帮助这种观察，相应的非干扰网络节点可以定义空导频间隔，其中传输被静音或以其他方式减少。 如本文另外描述的，可以结合干扰计算来识别和利用由各个干扰网络节点广播的加载信息。

    METHOD AND APPARATUS FOR SEPARABLE CHANNEL STATE FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM
    15.
    发明申请
    METHOD AND APPARATUS FOR SEPARABLE CHANNEL STATE FEEDBACK IN A WIRELESS COMMUNICATION SYSTEM 有权
    无线通信系统中可分离通道状态反馈的方法与装置

    公开(公告)号：US20130136062A1

    公开(公告)日：2013-05-30

    申请号：US13750783

    申请日：2013-01-25

    Applicant: QUALCOMM Incorporated

    Inventor： Alexei Y. Gorokhov

    IPC: H04W16/02

    CPC classification number: H04W16/02 ,  B25B23/0021 ,  B25G1/102 ,  H04B7/024 ,  H04B7/0417 ,  H04B7/0478 ,  H04B7/0626

    Abstract: Systems and methodologies are described herein that facilitate the generation and use of separable, hierarchical channel state feedback in a wireless communication system. As described herein, in the event that multiple network nodes cooperate to conduct downlink transmissions to a network user, channel state feedback as reported by the network user can be separated into intra-node feedback relating to per-node channel conditions and inter-node feedback relating to relative phase and/or amplitude between channels corresponding to respective nodes. Further, a network user can select to report intra-node feedback and/or inter-node feedback based on network instructions, a cooperation strategy to be utilized by respective network nodes, or the like. As additionally described herein, respective codebooks on which inter-node and intra-node channel feedback is based can be configured to convey information relating to a partial channel description and/or to vary based on resource units (e.g., sub-bands, resource blocks, etc.) utilized for downlink communication.

    Abstract translation: 本文描述了有助于在无线通信系统中产生和使用可分离的分级信道状态反馈的系统和方法。 如这里所述，在多个网络节点合作进行向网络用户的下行链路传输的情况下，由网络用户报告的信道状态反馈可以被分成与每节点信道条件和节点间反馈相关的节点内反馈 涉及与相应节点相对应的信道之间的相对相位和/或幅度。 此外，网络用户可以选择基于网络指令来报告节点内反馈和/或节点间反馈，由各个网络节点利用的协作策略等。 如本文另外描述的，节点间和节点内信道反馈所基于的相应码本可以被配置为传送与部分信道描述相关的信息和/或基于资源单元（例如，子带，资源块 等）用于下行链路通信。

    Acknowledgment based on short cell radio network temporary identifier
    17.
    发明授权
    Acknowledgment based on short cell radio network temporary identifier 有权

    公开(公告)号：US09819455B2

    公开(公告)日：2017-11-14

    申请号：US15388247

    申请日：2016-12-22

    Applicant: QUALCOMM Incorporated

    Inventor： Ravi Palanki ,  Alexei Y. Gorokhov

    IPC: H04W4/00 ,  H04L1/18 ,  H04L1/00 ,  H04B7/024 ,  H04W72/04

    CPC classification number: H04L1/1893 ,  H04B7/024 ,  H04L1/0025 ,  H04L1/1887 ,  H04L2001/0097 ,  H04W72/0413 ,  H04W72/042

    Abstract: Systems and methodologies are described that facilitate identifying resources upon which an acknowledgment can be sent or received in a wireless communication environment that leverages coordinated multi-point (CoMP). The resources can be identified based upon a criterion that can be identifiable to a non-anchor cell base station (as well as an anchor cell base station, a mobile device, etc.). The criterion can be an identifier corresponding to a mobile device, where the identifier maps to a predetermined set of resources. Examples of the identifier can include a media access control identifier (MACID), a cell radio network temporary identifier (C-RNTI), a short C-RNTI, etc. Further, the criterion can be physical resources corresponding to a transmission, where the acknowledgment is responsive to the transmission. Moreover, the acknowledgment can be sent or received in connection with a cooperation technique (e.g., joint transmission via inter-site packet sharing, cooperative beamforming, cooperative silence, . . . ).

    ENB PDCCH implementation to avoid ambiguous DCI information
    19.
    发明授权
    ENB PDCCH implementation to avoid ambiguous DCI information 有权
    ENB PDCCH实现，以避免歧义的DCI信息

    公开(公告)号：US09320032B2

    公开(公告)日：2016-04-19

    申请号：US14023438

    申请日：2013-09-10

    Applicant: QUALCOMM Incorporated

    Inventor： Peter Gaal ,  Mariam Motamed ,  Wanshi Chen ,  Alexei Y. Gorokhov ,  Dominique F. Bressanelli ,  Levent Aydin

    IPC: H04W72/04 ,  H04L5/00 ,  H04L1/18

    CPC classification number: H04W72/042 ,  H04L1/0046 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/1867 ,  H04L5/0053 ,  H04L5/14 ,  H04W72/0446 ,  H04W72/10

    Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus determines a first starting index for transmitting first control information in a first search space, determines a second starting index for transmitting second control information in a second search space, and transmits the second control information in the second search space at the second starting index when the first starting index and the second starting index are not the same value. The apparatus further transmits to a user equipment (UE) control information in a first search space, receives information from the UE corresponding to the transmitted control information, and decodes the received information based on the UE parsing the control information according to the first search space and based on the UE incorrectly parsing the control information according to a second search space.

    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。 该设备确定用于在第一搜索空间中发送第一控制信息的第一起始索引，确定用于在第二搜索空间中发送第二控制信息的第二起始索引，并且以第二起始索引在第二搜索空间中发送第二控制信息 当第一起始索引和第二起始索引不是相同的值时。 该装置还向用户设备（UE）发送第一搜索空间中的控制信息，从与UE发送的控制信息对应的UE接收信息，并且根据UE根据第一搜索空间解析控制信息对接收的信息进行解码 并且基于UE根据第二搜索空间不正确地解析控制信息。

    METHOD AND APPARATUS FOR MITIGATING PILOT POLLUTION IN A WIRELESS NETWORK
    20.
    发明申请
    METHOD AND APPARATUS FOR MITIGATING PILOT POLLUTION IN A WIRELESS NETWORK 有权
    在无线网络中减轻试点污染的方法和装置

    公开(公告)号：US20150055611A1

    公开(公告)日：2015-02-26

    申请号：US14533404

    申请日：2014-11-05

    Applicant: QUALCOMM Incorporated

    Inventor： Tingfang Ji ,  Avneesh Agrawal ,  Alexei Y. Gorokhov

    IPC: H04L5/00

    CPC classification number: H04L5/0048 ,  H04L1/0004 ,  H04L1/001 ,  H04L1/0026 ,  H04L1/1812 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0057 ,  H04L5/006 ,  H04L5/0062 ,  H04L25/0224 ,  H04W52/241 ,  H04W52/243 ,  H04W52/325 ,  H04W52/343

    Abstract: Techniques for mitigating pilot pollution in a wireless network are described. In an aspect, pilot pollution may be mitigated by reducing density and/or transmit power of common pilots whenever possible. A cell may send a common pilot at a first density and a first transmit power level during a first time period and may send the common pilot at a second density and a second transmit power level during a second time period. The second density may be lower than the first density and/or the second transmit power level may be lower than the first transmit power level. Lower density may be achieved by sending the common pilot less frequently, on fewer subcarriers, and/or from fewer antennas. The cell may determine whether to reduce the density and/or transmit power of the common pilot based on network loading, SINRs of terminals, etc. In another aspect, pilot pollution may be mitigated by performing pilot cancellation at a terminal.

    Abstract translation: 描述了减轻无线网络中导频污染的技术。 在一方面，可能通过尽可能减少公共飞行员的密度和/或发射功率来减轻飞行员污染。 小区可以在第一时间段期间以第一密度和第一发射功率电平发送公共导频，并且可以在第二时间段期间以第二密度和第二发射功率电平发送公共导频。 第二密度可以低于第一密度，和/或第二发射功率电平可能低于第一发射功率电平。 较低的密度可以通过在较少的子载波上和/或从更少的天线较少频率地发送公共导频来实现。 小区可以基于网络负载，终端的SINR等来确定是否降低公共导频的密度和/或发射功率。另一方面，可以通过在终端执行导频消除来减轻导频污染。

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