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    • 1. 发明申请
    • METHOD AND SYSTEM FOR CONSTRUCTING CHANNEL QUALITY INDICATOR TABLES FOR FEEDBACK IN A COMMUNICATION SYSTEM
    • 在通信系统中构建反馈信道质量指标表的方法和系统
    • US20090161613A1
    • 2009-06-25
    • US12256080
    • 2008-10-22
    • Mark KentBazhong Shen
    • Mark KentBazhong Shen
    • H04W72/04
    • H04L27/0008H04L1/0003H04L1/0009H04L1/0016H04L1/0026H04L1/20H04L5/1453H04L27/18H04L27/34
    • Aspects of a method and system for constructing channel quality indicator tables for feedback in a communication system are provided. A user terminal may receive a signal transmitted by using a modulation and coding scheme (MCS) from a base station. The user terminal may assess channel quality information by accessing a CQI table to identify a CQI value based on the received radio signal. The CQI table may comprise various modulation regions in terms of spectral efficiency. The identified CQI value may be transmitted to the base station. Various standard system protocols such 3GPP, 3GPP LTE, or WiMAX, may be used for transmissions. The CQI table may be generated via PER versus spectral efficiency and/or SNR, respectively. The base station may select a MCS based on the CQI feedback from the user terminal for transmitting a subsequent radio signal to the user terminal.
    • 提供了一种在通信系统中构建用于反馈的信道质量指标表的方法和系统的方面。 用户终端可以接收通过使用来自基站的调制和编码方案(MCS)发送的信号。 用户终端可以通过访问CQI表来评估信道质量信息,以基于所接收的无线电信号来识别CQI值。 CQI表可以包括在频谱效率方面的各种调制区域。 所识别的CQI值可以被发送到基站。 诸如3GPP,3GPP LTE或WiMAX之类的各种标准系统协议可用于传输。 可以分别通过PER与频谱效率和/或SNR生成CQI表。 基站可以基于来自用户终端的CQI反馈来选择MCS,以将随后的无线电信号发送到用户终端。
    • 2. 发明授权
    • Method and system for determining limited soft buffer size on transport blocks for rate matching
    • 用于确定速率匹配的传输块上的有限软缓冲区大小的方法和系统
    • US08665720B2
    • 2014-03-04
    • US12243398
    • 2008-10-01
    • Bazhong ShenMark Kent
    • Bazhong ShenMark Kent
    • G01R31/08G06F11/00G08C15/00H04J1/16H04J3/14H04L1/00H04L12/26H04L1/18H04L12/56
    • H04L1/0013H04L1/0067H04L1/18H04L1/1812H04L1/1816H04L1/1819H04L1/1835H04L1/1874H04L47/10H04L47/14H04L47/30
    • Aspects of a method and system for determining a limited soft buffer size on transport blocks for rate matching are provided. A data stream may be processed for transmission between a base station (eNodeB) and a UE via HARQ procedures. A two-stage rate-matching algorithm may be used in the HARQ procedures. A limited virtual soft buffer size at the UE in the two-stage rate-matching algorithm may be calculated on site based on channel condition information, available channel bandwidth, number of layers in spatial multiplexing, and the capacity of the UE, respectively. The data stream may be first rate-matched to the calculated limited soft buffer size available at the UE, and forwarded for second stage rate-matching to an actual physical channel size determined by the base station. The amount of bits forwarded for second stage rate-matching may equal to the calculated limited virtual soft buffer size of the virtual soft buffer.
    • 提供了用于确定用于速率匹配的传输块上的有限软缓冲区大小的方法和系统的方面。 可以通过HARQ过程处理数据流以在基站(eNodeB)和UE之间进行传输。 可以在HARQ过程中使用两阶段速率匹配算法。 可以基于信道条件信息,可用信道带宽,空间复用中的层数和UE的容量分别在现场计算UE在两级速率匹配算法中的有限虚拟软缓冲区大小。 数据流可以首先与UE处可用的计算的有限软缓冲区大小进行速率匹配,并将其转发到由基站确定的实际物理信道大小的第二级速率匹配。 转发用于第二级速率匹配的比特量可以等于所计算的虚拟软缓冲器的有限虚拟软缓冲区大小。
    • 3. 发明申请
    • Method And System For Determining Limited Soft Buffer Size On Transport Blocks For Rate Matching
    • 用于确定传输块上有限软缓冲区大小的方法和系统用于速率匹配
    • US20090232050A1
    • 2009-09-17
    • US12243398
    • 2008-10-01
    • Bazhong ShenMark Kent
    • Bazhong ShenMark Kent
    • H04W8/00
    • H04L1/0013H04L1/0067H04L1/18H04L1/1812H04L1/1816H04L1/1819H04L1/1835H04L1/1874H04L47/10H04L47/14H04L47/30
    • Aspects of a method and system for determining a limited soft buffer size on transport blocks for rate matching are provided. A data stream may be processed for transmission between a base station (eNodeB) and a UE via HARQ procedures. A two-stage rate-matching algorithm may be used in the HARQ procedures. A limited virtual soft buffer size at the UE in the two-stage rate-matching algorithm may be calculated on site based on channel condition information, available channel bandwidth, number of layers in spatial multiplexing, and the capacity of the UE, respectively. The data stream may be first rate-matched to the calculated limited soft buffer size available at the UE, and forwarded for second stage rate-matching to an actual physical channel size determined by the base station. The amount of bits forwarded for second stage rate-matching may equal to the calculated limited virtual soft buffer size of the virtual soft buffer.
    • 提供了用于确定用于速率匹配的传输块上的有限软缓冲区大小的方法和系统的方面。 可以通过HARQ过程处理数据流以在基站(eNodeB)和UE之间进行传输。 可以在HARQ过程中使用两阶段速率匹配算法。 可以基于信道条件信息,可用信道带宽,空间复用中的层数和UE的容量分别在现场计算UE在两级速率匹配算法中的有限虚拟软缓冲区大小。 数据流可以首先与UE处可用的计算的有限软缓冲区大小进行速率匹配,并将其转发到由基站确定的实际物理信道大小的第二级速率匹配。 转发用于第二级速率匹配的比特量可以等于所计算的虚拟软缓冲器的有限虚拟软缓冲区大小。
    • 4. 发明授权
    • Method and system for using non-uniform channel quantization for a feedback-based communication system
    • 用于基于反馈的通信系统使用非均匀信道量化的方法和系统
    • US09356674B2
    • 2016-05-31
    • US12652150
    • 2010-01-05
    • Jun ZhengMark KentVinko Erceg
    • Jun ZhengMark KentVinko Erceg
    • H04B17/00H04B7/06H04B7/04H04L1/00H04L25/02
    • H04B7/0626H04B7/0417H04L1/0026H04L1/003H04L25/0202
    • A mobile device estimates channel state information (CSI) comprising, for example, CQI and/or SNR, for a downlink channel. The estimated CSI is non-uniformly quantized and transmitted to the base station over a finite-rate feedback channel. Different portions of the estimated CSI are quantized using different quantization step sizes, which are determined according to a performance metric function such as a channel capacity function of the estimated CSI. A quantization step size for a portion of the estimated CSI is increased if a low distribution probability is indicated by the portion of the estimated CSI. A quantization step size for a portion of the estimated CSI is decreased if a high distribution probability is indicated. The mobile device quantizes the estimated CSI using the determined quantization step sizes to transmit to the base station over the finite-rate feedback channel. Downlink data transmission is received according to the transmitted CSI.
    • 移动设备针对下行链路信道估计包括例如CQI和/或SNR的信道状态信息(CSI)。 估计的CSI被不均匀地量化,并通过有限速率反馈信道发送到基站。 使用不同的量化步长量化估计的CSI的不同部分,这些量化步长根据诸如估计的CSI的信道容量函数的性能度量功能来确定。 如果估计的CSI的部分指示低分布概率,则估计的CSI的一部分的量化步长增加。 如果指示高分配概率,则估计CSI的一部分的量化步长减小。 移动设备使用确定的量化步长量化估计的CSI,以便通过有限速率反馈信道向基站发送。 根据发送的CSI接收下行链路数据传输。
    • 7. 发明授权
    • Method and system for determining a location of a device using femtocell information
    • 用于使用毫微微小区信息来确定设备的位置的方法和系统
    • US08964635B2
    • 2015-02-24
    • US12418257
    • 2009-04-03
    • Charles AbrahamXuemin ChenWael William DiabVinko ErcegVictor HouJeyhan KaraoguzMark Kent
    • Charles AbrahamXuemin ChenWael William DiabVinko ErcegVictor HouJeyhan KaraoguzMark Kent
    • H04W24/00H04W64/00H04W84/04
    • H04W64/00H04W84/045
    • Aspects of a method and system for determining a location of a device using femtocell information are provided. In this regard, a femtocell management entity may be operable to receive global navigation system satellite (GNSS) coordinates of one or more of a plurality of femtocells and one or both of a receive signal strength indication (RSSI) and/or power levels of one or more of the plurality of femtocells, which are managed by the femtocell management entity. The femtocell management entity may be operable to determine a location of a communication device that is derived based on the received GNSS coordinates, RSSI and/or power levels of one or more of the plurality of femtocells and communicate the determined location to a communication device. One or more location based applications and/or services within the communication device may be operable to utilize the received determined location to provide mapping and/or location information.
    • 提供了使用毫微微小区信息来确定设备的位置的方法和系统的方面。 在这方面,毫微微小区管理实体可以用于接收多个毫微微小区中的一个或多个的全球导航系统卫星(GNSS)坐标,以及接收信号强度指示(RSSI)和/或一个的功率水平中的一个或两个 或多个由毫微微小区管理实体管理的毫微微小区。 毫微微小区管理实体可以可操作以基于所接收的多个毫微微小区中的一个或多个毫微微小区的GNSS坐标,RSSI和/或功率级别来确定通信设备的位置,并将确定的位置传送到通信设备。 通信设备内的一个或多个基于位置的应用和/或服务可以可操作以利用所接收的确定的位置来提供映射和/或位置信息。
    • 8. 发明授权
    • Method and system for peer-to-peer cellular communications
    • 用于对等蜂窝通信的方法和系统
    • US08855048B2
    • 2014-10-07
    • US12395410
    • 2009-02-27
    • Charles AbrahamXuemin Sherman ChenWael William DiabVinko ErcegVictor T. HouJeyhan KaraoguzMark Kent
    • Charles AbrahamXuemin Sherman ChenWael William DiabVinko ErcegVictor T. HouJeyhan KaraoguzMark Kent
    • H04W4/00H04B7/00H04L12/28H04L12/66H04W40/00
    • H04W76/14H04H60/80H04W84/045
    • Aspects of a method and system for peer-to-peer cellular communications are provided in which one or more cellular communication channels may be established between a femtocell and a plurality of communication devices. The femtocell may control routing of data between the plurality of communication devices via the one or more cellular communication channels. The femtocell may enable multicasting and/or broadcasting data from one of the communication devices to two or more remaining ones of the communication devices. The multicast and/or broadcast data may be communicated via the cellular communication channels and may be additionally communicated via an IP connection to the femtocell. Data may be communicated over the cellular communication channels in compliance with 3rd generation partnership project (3GPP) standards and/or 3rd generation partnership project 2 (3GPP2) standards. The femtocell may reformat data prior to communicating it to one or more of the plurality of communication devices.
    • 提供了用于对等蜂窝通信的方法和系统的方面,其中可以在毫微微小区和多个通信设备之间建立一个或多个蜂窝通信信道。 毫微微小区可以经由一个或多个蜂窝通信信道来控制多个通信设备之间的数据路由。 毫微微小区可以使得能够从通信设备之一多播和/或广播数据到两个或更多个剩余的通信设备。 多播和/或广播数据可以经由蜂窝通信信道进行通信,并且可以经由IP连接另外传送到毫微微小区。 可以根据第三代合作伙伴计划(3GPP)标准和/或第三代伙伴关系项目2(3GPP2)标准在蜂窝通信信道上传送数据。 毫微微小区可以在将数据传送到多个通信设备中的一个或多个之前重新格式化数据。
    • 9. 发明授权
    • Method and system for an alternating delta quantizer for limited feedback MIMO pre-coders
    • 用于有限反馈MIMO预编码器的交替Δ量化器的方法和系统
    • US08817899B2
    • 2014-08-26
    • US13310872
    • 2011-12-05
    • Mark KentVinko ErcegJun ZhengUri Landau
    • Mark KentVinko ErcegJun ZhengUri Landau
    • H04L27/28
    • H04B7/0417H04B7/0626H04B7/0639H04B7/0641
    • Aspects of a method and system for an alternating delta quantizer for limited feedback MIMO pre-coders may comprise quantizing a change in channel state information in a MIMO pre-coding system onto at least a first and a second codebook, each of which comprises one or more unitary matrices, using a cost function; feeding back, in an alternating manner, an index to an element of at least the first codebook or the second codebook, associated with the quantizing, from a receiver to a transmitter in said MIMO pre-coding system, and generating the at least first and second codebook based on at least the channel state information. The channel state information may be a matrix V and the cost function may be defined by the following relationship: f ⁡ ( A ) = ( 1 N ⁢ ∑ j = 1 N ⁢  a jj  2 ) where A is a matrix of size N by N and aij is element (i,j) of matrix A.
    • 用于有限反馈MIMO预编码器的交替式量化器的方法和系统的方面可以包括将MIMO预编码系统中的信道状态信息的改变量化到至少第一和第二码本上,每个码本包括一个或 更多的单位矩阵,使用成本函数; 以交替的方式,向所述MIMO预编码系统中的从接收机到发射机的与量化相关联的至少第一码本或第二码本的元素的索引进行反馈,并且生成至少第一和 至少基于信道状态信息的第二码本。 信道状态信息可以是矩阵V,并且成本函数可以由以下关系定义:f⁡(A)=(1NΣj = 1 Na jj her 2)其中A是大小的矩阵 N是N,aij是矩阵A的元素(i,j)。
    • 10. 发明授权
    • Method and system for processing multipath signals over a single user downlink MIMO channel using a hybrid equalizer/RAKE receiver
    • 用于使用混合均衡器/ RAKE接收机在单个用户下行MIMO信道上处理多径信号的方法和系统
    • US08750360B2
    • 2014-06-10
    • US12765635
    • 2010-04-22
    • Mark KentVinko Erceg
    • Mark KentVinko Erceg
    • H03H7/30H03H7/40H03K5/159
    • H04L25/03012H04B1/7115H04L25/0242H04L2025/03426
    • A mobile device comprises multiple receive antennas to receive spatially independent multipath signals from multiple transmit antennas located on a single base station. The mobile device concurrently generates a RAKE-based equivalent single path signal (RAKE ESPS) and an equalizer-based equivalent single path signal (equalizer ESPS) for the multipath signals received via each receive antenna. The generated RAKE ESPS or the generated equalizer ESPS is selected for channel decoding. Reference signal components are extracted from the multipath signals received to determine noise components, which is used to determine signal quality information of the generated RAKE ESPS and the generated equalizer ESPS. A final ESPS is selected from the generated RAKE ESPS and the generated equalizer ESPS based on the corresponding determined signal quality information. The selected final ESPS is diversity processed by combining signal components over the transmit/receive antennas. Transmission parameters are determined for channel decoding the combined signals.
    • 移动设备包括多个接收天线以从位于单个基站上的多个发射天线接收空间上独立的多径信号。 移动设备同时产生用于经由每个接收天线接收的多径信号的基于RAKE的等效单路径信号(RAKE ESPS)和基于均衡器的等效单路径信号(均衡器ESPS)。 选择生成的RAKE ESPS或生成的均衡器ESPS进行信道解码。 从所接收的多径信号中提取参考信号分量以确定噪声分量,其用于确定所生成的RAKE ESPS和生成的均衡器ESPS的信号质量信息。 基于相应确定的信号质量信息,从生成的RAKE ESPS和生成的均衡器ESPS中选择最终ESPS。 所选择的最终ESPS通过在发射/接收天线上组合信号分量进行分集处理。 确定传输参数用于信道解码组合信号。