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    • 2. 发明申请
    • METHOD AND SYSTEM FOR RATE PREDICTION IN COORDINATED MULTI-POINT TRANSMISSION
    • 用于协调多点传输中速率预测的方法和系统
    • WO2011072156A2
    • 2011-06-16
    • PCT/US2010059753
    • 2010-12-09
    • QUALCOMM INCBARBIERI ALANGOROKHOV ALEXEI YURIEVITCH
    • BARBIERI ALANGOROKHOV ALEXEI YURIEVITCH
    • H04B7/06H04B7/02
    • H04B7/0626H04B7/024H04B17/26H04B17/336H04B17/345H04B17/382H04L5/0032H04L5/0035
    • A downlink cooperative multi-point (CoMP) framework of a wireless communication system reduces inter-node interference and increases channel gain by scheduling a user equipment (UE) based on improved interference estimates and gain estimates. The UE computes a gain scaling factor (µ) based on theoretical gain and actual gain for each available scheduling scenario and transmits the gain scaling factors to an anchor node of the UE 's radio reporting set (RRS). The anchor node computes an internal scaling factor (v) based on the received gain scaling factors (µ) to estimate an actual gain for the scheduling scenarios. The UE also periodically transmits quantized interference estimates to the anchor node. The anchor node predicts a rate for the scheduling scenarios and schedules the UE based on the internal scaling factor (v), the gain scaling factors (µ), and the interference estimates.
    • 无线通信系统的下行链路协作多点(CoMP)框架通过基于改进的干扰估计和增益估计来调度用户设备(UE)来减少节点间干扰并且增加信道增益。 UE基于每个可用调度场景的理论增益和实际增益来计算增益缩放因子(μ),并将增益缩放因子发送到UE的无线报告集(RRS)的锚节点。 锚节点基于接收到的增益缩放因子(μ)计算内部缩放因子(v)以估计调度场景的实际增益。 UE还周期性地将量化的干扰估计发送到锚节点。 锚节点预测调度场景的速率并且基于内部缩放因子(v),增益缩放因子(μ)和干扰估计来调度UE。
    • 4. 发明申请
    • FACILITATING SENSING IN COGNITIVE RADIO COMMUNICATIONS
    • 加强感知无线电通信
    • WO2012024344A3
    • 2012-04-12
    • PCT/US2011047997
    • 2011-08-16
    • QUALCOMM INCBARBIERI ALANGAAL PETERMALLADI DURGA PRASADWEI YONGBIN
    • BARBIERI ALANGAAL PETERMALLADI DURGA PRASADWEI YONGBIN
    • H04W16/14
    • H04W16/14H04W72/0426
    • Techniques are provided for the suppression of reference signal transmissions to enable sensing in cognitive radio communications. In one example, there is provided a method, operable by a network entity (e.g., evolved Node B), that may involve communicating with another network entity to determine parameters of a quiet period, the parameters comprising at least one of when the quiet period occurs and duration of the quiet period. The method may involve transmitting a reference signal in a first channel exclusively during a first plurality of subframes of a first frame period, wherein the first frame period further includes a quiet period during which no signals are transmitted, and performing during the quiet period a sensing operation with respect to the first channel.
    • 提供技术用于抑制参考信号传输以使得能够在认知无线电通信中进行感测。 在一个示例中,提供了一种可由网络实体(例如,演进节点B)操作的方法,其可以涉及与另一网络实体通信以确定安静时段的参数,所述参数包括以下中的至少一个:静默时段 发生和安静期的持续时间。 该方法可以包括在第一帧周期的第一多个子帧期间专门在第一信道中发送参考信号,其中第一帧周期还包括在其中不发送信号的静默时段,以及在安静周期期间执行感测 相对于第一通道的操作。
    • 7. 发明申请
    • METHOD AND APPARATUS FOR COOPERATION STRATEGY SELECTION IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的合作策略选择方法和装置
    • WO2010040098A2
    • 2010-04-08
    • PCT/US2009059439
    • 2009-10-02
    • QUALCOMM INCGOROKHOV ALEXEI YMALLIK SIDDHARTHABARBIERI ALANHOU JILEI
    • GOROKHOV ALEXEI YMALLIK SIDDHARTHABARBIERI ALANHOU JILEI
    • H04L5/00
    • H04W24/02H04L5/0023H04L5/0035H04L5/006H04L5/0073H04L5/0091
    • Systems and methodologies are described that facilitate cooperation strategy selection for a network multiple-in-multiple-out (N-MIMO) communication system. As described herein, one or more nodes in a communication system capable of N-MIMO communication can calculate marginal utilities, projected per-user rates, and/or other parameters corresponding to respective associated users. Based on these calculations, respective network nodes can perform user scheduling and selection, cell scheduling and selection, selection of a cooperation strategy (e.g., coordinated silencing, joint transmission, coordinated beamforming, etc.), and/or other operations to provide cooperative communication for respective users. As further described herein, projected rate calculation for a given user can be adjusted based on processing or channel implementation loss associated with the user, interference nulling capability of the user, or other factors. As additionally described herein, these and/or other parameters can be fed back by respective users to a serving network node and/or mandated via system performance requirements.
    • 描述了有助于网络多输入多输出(N-MIMO)通信系统的合作策略选择的系统和方法。 如本文所述,能够进行N-MIMO通信的通信系统中的一个或多个节点可以计算与各个关联用户相对应的边际效用,投影每用户速率和/或其他参数。 基于这些计算,各个网络节点可以执行用户调度和选择,小区调度和选择,协作策略的选择(例如协调静默,联合传输,协调波束成形等)和/或其他操作以提供协作通信 为各自的用户。 如在此进一步描述的,可以基于与用户相关联的处理或信道实现损失,用户的干扰置零能力或其他因素来调整给定用户的预计费率计算。 如此处另外描述的,这些和/或其他参数可以由相应的用户反馈到服务网络节点和/或经由系统性能要求来强制执行。
    • 8. 发明申请
    • ADAPTIVE DATA INTERFERENCE CANCELLATION
    • 自适应数据干扰消除
    • WO2014168863A3
    • 2014-12-11
    • PCT/US2014033150
    • 2014-04-07
    • QUALCOMM INC
    • BARBIERI ALANLUO TAO
    • H04J11/00H04L5/00H04W24/02
    • H04L1/005H03M13/3746H03M13/3784H04J11/004H04J11/0043H04J11/005H04L1/0048H04L5/0032H04W24/02H04W84/045
    • Real-time selection of interference cancellation schemes based on transmission parameters and amount of resource overlap between the desired payload and the interfering payload. Codeword level interference cancellation may be performed where the signal quality of the interfering signal indicates that the interfering payload will be decoded correctly. When performed, codeword level interference cancellation may be monitored to determine if decoding the interfering payload is converging. Other interference cancellation schemes may be selected based on the signal quality of the interfering signal or non-converging decode of the interfering payload. The number of iterations for iterative decoding in codeword level interference cancellation may be dynamically selected. The decoder output (e.g., soft bits) may be used to perform interference cancellations before the decoder is fully converged. Iterative decoding may be performed in multiple passes and soft decision output form one pass may be used to initialize the decoder for a subsequent pass.
    • 基于传输参数和所需有效载荷与干扰有效载荷之间的资源重叠量的干扰消除方案的实时选择。 可以在干扰信号的信号质量指示干扰有效负载将被正确解码的情况下执行码字级干扰消除。 当执行时,可以监视码字电平干扰消除以确定对干扰有效载荷的解码是否正在收敛。 可以基于干扰信号的信号质量或干扰有效负载的非收敛解码来选择其他干扰消除方案。 可以动态地选择用于码字级干扰消除中的迭代解码的迭代次数。 解码器输出(例如,软比特)可以在解码器完全收敛之前用于执行干扰消除。 可以在多遍中执行迭代解码,并且可以使用一次通过的软判决输出来初始化用于后续通过的解码器。