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    • 1. 发明申请
    • METHOD AND APPARATUS FOR INTERFERENCE REPORTING IN A N-MIMO COMMUNICATION SYSTEM
    • 用于在N-MIMO通信系统中进行干扰报告的方法和设备
    • WO2010048437A2
    • 2010-04-29
    • PCT/US2009061723
    • 2009-10-22
    • QUALCOMM INCPALANKI RAVIGOROKHOV ALEXEI YBHUSHAN NAGA
    • PALANKI RAVIGOROKHOV ALEXEI YBHUSHAN NAGA
    • H04L5/00
    • H04W24/00H04B17/24H04B17/345H04J11/0053H04L1/0026H04L1/0028H04L1/02H04L5/0023H04L5/0035H04L2001/0092H04W72/0426H04W72/085Y02D70/1222Y02D70/1242Y02D70/1262Y02D70/142Y02D70/146
    • 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.
    • 这里描述了促成网络多输入多输出(N-MIMO)通信系统中的干扰测量和报告的系统和方法。 如这里所描述的,网络设备可以测量和报告与协作地服务该设备的指定的一组节点之外的网络节点相对应的干扰。 各个干扰报告还可以识别显性干扰节点,各个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各个网络节点之间的协调和调度。 如在此进一步描述的,来自网络节点的干扰可以通过观察来自网络节点的参考和/或同步信号来测量。 为了帮助这种观察,各个非干扰网络节点可以定义其中传输被静音或以其他方式减少的空导频间隔。 如此处另外描述的,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负载信息。
    • 3. 发明申请
    • DOMINANT INTERFERER INDICATION IN ACCESS PROBE
    • ACCESS PROBE中的主要干扰指示
    • WO2010006294A3
    • 2010-03-25
    • PCT/US2009050298
    • 2009-07-10
    • QUALCOMM INCSAMPATH ASHWINKHANDEKAR AAMOD DGOROKHOV ALEXEI YBORRAN MOHAMMAD JBHUSHAN NAGAPALANKI RAVI
    • SAMPATH ASHWINKHANDEKAR AAMOD DGOROKHOV ALEXEI YBORRAN MOHAMMAD JBHUSHAN NAGAPALANKI RAVI
    • H04W72/08
    • H04W72/082
    • Systems and methodologies are described that facilitate indicating a dominant interferer to a target serving base station in a wireless communication environment. A mobile device can detect presence or absence of a dominant interferer. Further, an access probe that includes information related to the presence or absence of the dominant interferer can be generated. For example, the information can be included in a payload of the access probe as an explicit flag, an explicit indication of an interference level, a Channel Quality Indicator (CQI) value (e.g., reserved versus non-reserved,...), etc. Moreover, the access probe can be transmitted to the target serving base station to initiate an access procedure. The target serving base station can select a time-frequency resource to be utilized for a responsive downlink transmission (e.g., access grant signal, subsequent access related message,...) as a function of the information included in the access probe.
    • 描述了有助于在无线通信环境中向目标服务基站指示显着干扰的系统和方法。 移动设备可以检测是否存在主要干扰源。 此外,可以生成包括与主要干扰源的存在或不存在有关的信息的接入探测。 例如,可以将信息作为显式标志,干扰水平的明确指示,信道质量指示符(CQI)值(例如,保留与非保留,...)一起包括在接入探测的有效载荷中, 等等。而且,接入探测可以被发送到目标服务基站以发起接入过程。 目标服务基站可以根据包括在接入探测中的信息来选择要用于响应下行链路传输(例如,接入准许信号,后续接入相关消息,...)的时间 - 频率资源。
    • 5. 发明申请
    • BROADCAST-MULTICAST TRANSMISSION WITH RATE ADAPTION
    • 具有速率自适应的广播多播传输
    • WO2009158545A3
    • 2010-03-18
    • PCT/US2009048724
    • 2009-06-25
    • QUALCOMM INCAGRAWAL AVNEESHGOROKHOV ALEXEI YGURELLI MEHMET IBHUSHAN NAGAAGASHE PARAG A
    • AGRAWAL AVNEESHGOROKHOV ALEXEI YGURELLI MEHMET IBHUSHAN NAGAAGASHE PARAG A
    • H04L1/16H04L1/00
    • H04L1/1692H04L1/0026H04L1/1671H04L1/1861H04L1/1887H04L2001/0093
    • Techniques for supporting broadcast/multiple transmission to multiple terminals with feedback and rate adaptation are described. In an aspect, a combination of HARQ and at least one shared feedback channel may be used to support broadcast/multicast transmission. In one design, a base station may send at least one transmission of a packet to multiple terminals, one transmission at a time. The base station may receive feedback information (e.g., NAK) for the packet from the terminals on the shared feedback channel(s). The base station may determine whether to terminate the packet early and/or may select at least one transmission parameter for another packet based on the feedback information for the packet. In another aspect, a transport format for a broadcast/multicast transmission may be selected based on CQI information from terminals receiving the transmission. The terminals may send CQI information at a slow rate and/or only certain terminals may send CQI information.
    • 描述了用于支持具有反馈和速率适配的多个终端的广播/多传输的技术。 在一方面,可以使用HARQ和至少一个共享反馈信道的组合来支持广播/多播传输。 在一种设计中,基站可以向多个终端发送分组的至少一个传输,一次发送一个。 基站可以从共享反馈信道上的终端接收针对分组的反馈信息(例如,NAK)。 基站可以基于分组的反馈信息来确定是否提前终止分组和/或可以针对另一分组选择至少一个传输参数。 在另一方面,可以基于接收到传输的终端的CQI信息来选择用于广播/多播传输的传输格式。 终端可以以慢速率发送CQI信息和/或仅某些终端可以发送CQI信息。
    • 6. 发明申请
    • SELECTIVE TRANSMISSION OF POWER DECISION PILOT IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中功率决策指令的选择性传输
    • WO2011046574A3
    • 2011-10-20
    • PCT/US2009066466
    • 2009-12-02
    • QUALCOMM INCGOROKHOV ALEXEI YKHANDEKAR AAMOD DPALANKI RAVI
    • GOROKHOV ALEXEI YKHANDEKAR AAMOD DPALANKI RAVI
    • H04W52/54H04B17/00H04W52/32
    • H04W52/244H04J11/0023H04W52/242H04W52/325
    • Techniques for selectively transmitting a power decision pilot are described. The power decision pilot may be indicative of the transmit power to use for data transmission in a future time interval. The power decision pilot may be transmitted when sufficiently beneficial for channel quality estimation or omitted otherwise. Whether or not to transmit the power decision pilot may be determined based on system type (e.g., heterogeneous or homogeneous system), the presence or absence of a dominant interferer, whether a reduce interference request is received, etc. For example, a base station may transmit a power decision pilot if it causes high interference to a non-served terminal, if a served terminal observes high interference from a neighbor base station, if the base station receives a reduce interference request from a non-served terminal, etc. The power decision pilot may be transmitted if a determination is made to transmit the pilot or omitted otherwise.
    • 描述了用于选择性地发送功率决策导频的技术。 功率决策导频可以指示在未来的时间间隔内用于数据传输的传输功率。 功率决定导频可以在对信道质量估计充分有利时发送,否则将被忽略。 可以基于系统类型(例如,异构或同构系统),是否存在主要干扰源,是否接收到降低干扰请求等来确定是否发送功率决策导频。例如,基站 如果服务终端观察到来自相邻基站的高干扰,如果基站接收到来自非服务终端的减少干扰请求等,则可以传送功率决策导频,如果它对非服务终端造成高干扰的话。 如果做出发送导频的确定或者否则忽略,则可以发送功率决定导频。
    • 9. 发明申请
    • METHOD AND SYSTEM TO INDICATE A DESIRED TRANSMIT POWER AND SOFT POWER CONTROL IN A WIRELESS NETWORK
    • 在无线网络中显示所需发射功率和软功率控制的方法和系统
    • WO2009114640A2
    • 2009-09-17
    • PCT/US2009036853
    • 2009-03-11
    • QUALCOMM INCGOROKHOV ALEXEI YPALANKI RAVI
    • GOROKHOV ALEXEI YPALANKI RAVI
    • H04W52/00
    • H04W52/243
    • In a wireless communication system, short-term interference mitigation may be used to mitigate (e.g., to avoid or reduce) interference on a given link in order to improve performance of data transmission. The interference mitigation reduces transmit power of interfering transmissions so that a higher signal-to-noise-and-interference ratio (SINR) can be achieved for a desired data transmission. A node may observe high interference from an interfering node that degrades performance of data transmission sent on that link. By taking advantage of an communication path with the interfering node (e.g., wireless data/control channel, backhaul network connection, or analog broadcast signal), the transmitting node can successfully complete time critical communications while allowing the interfering node to also simultaneously communicate without reducing overall resources nor burdening any managing nodes.
    • 在无线通信系统中,可以使用短期干扰减轻来减轻(例如,以避免或减少)给定链路上的干扰,以便提高数据传输的性能。 干扰减轻降低干扰传输的发射功率,从而可以实现更高的信噪比干扰比(SINR),用于所需的数据传输。 节点可能会观察到来自干扰节点的高干扰,从而降低在该链路上发送的数据传输的性能。 通过利用与干扰节点(例如,无线数据/控制信道,回程网络连接或模拟广播信号)的通信路径,发送节点可以成功地完成时间关键通信,同时允许干扰节点同时通信而不减少 整体资源也不负责管理节点。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR UPLINK NETWORK MIMO IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的上行网络MIMO的方法与装置
    • WO2010048510A2
    • 2010-04-29
    • PCT/US2009061850
    • 2009-10-23
    • QUALCOMM INCGOROKHOV ALEXEI YPALANKI RAVI
    • GOROKHOV ALEXEI YPALANKI RAVI
    • H04L5/00
    • H04L5/006H04L1/0002H04L1/0025H04L1/0026H04L1/1887H04L5/0023H04L5/0035H04L5/0073H04L5/0091H04L2001/0097
    • Systems and methodologies are described herein that facilitate generation and processing of control signaling to support uplink network multiple-in-multiple-out (N-MIMO) communication in a wireless communication system. As described herein, respective network nodes associated with an uplink N-MIMO framework can generate channel state information (CSI) corresponding to an uplink channel from a designated network user to the respective nodes. Generated CSI can subsequently be communicated to an uplink anchor node for the network user in order to facilitate rate assignment, scheduling, and/or other operations with respect to the network user. As described herein, CSI generated and reported by respective cells can include channel profiles, carrier/interference profiles, estimated supported uplink rates, or the like. As additionally described herein, supplemental information such as observed interference levels, demodulation indicators, or the like can be communicated to an anchor node and utilized in rate assignment and/or scheduling.
    • 本文描述了便于生成和处理控制信令以在无线通信系统中支持上行链路多输入多输出(N-MIMO)通信的系统和方法。 如本文所述,与上行链路N-MIMO框架相关联的各个网络节点可以生成对应于从指定网络用户到相应节点的上行链路信道的信道状态信息(CSI)。 随后可以将生成的CSI传送给网络用户的上行链路锚节点,以便于相对于网络用户的速率分配,调度和/或其他操作。 如这里所描述的,由各个小区生成和报告的CSI可以包括信道简档,载波/干扰简档,估计支持的上行链路速率等。 如本文另外描述的,可以将诸如观测到的干扰电平,解调指示符等的补充信息传送到锚节点,并在速率分配和/或调度中使用。