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1. 发明申请

WO2014046684A1 FREQUENCY ERROR CORRECTION FOR LTE UPLINK COMP 审中-公开
标题翻译： LTE UPLINK COMP的频率错误校正
公开(公告)号：WO2014046684A1
公开(公告)日：2014-03-27
申请号：PCT/US2012/056842
申请日：2012-09-24
申请人： NOKIA SIEMENS NETWORKS OY , NAGARAJ, Shirish , YU, Xiaoyong
发明人： NAGARAJ, Shirish , YU, Xiaoyong
IPC分类号： H04L25/02 , H04L27/00 , H04L27/26
CPC分类号： H04W72/0453 , H04B7/0857 , H04L5/0005 , H04L5/0035 , H04L25/0204 , H04L25/0206 , H04L25/0212 , H04L25/022 , H04L25/0224 , H04L25/03159 , H04L27/0014 , H04L27/2657 , H04L27/266 , H04L2027/0067
摘要： A method includes, for a selected user equipment for signals corresponding in part to the selected user equipment and received by antennas from a number of cells, wherein each cell has one or more antennas, and wherein each signal is from an individual one of the antennas, performing the following: estimating carrier frequency offset for each cell using one or more of the signals from the cell; performing frequency offset correction on each signal from each cell by using at least the estimated carrier frequency offset for an associated cell; estimating a channel for each frequency offset corrected signal; and combining, using the estimated channels, each of the frequency offset corrected signals to generate one or more estimates of one or more symbols transmitted from the selected user equipment. A second frequency offset correction may be performed subsequent to the combining. Apparatus, computer programs, and software are also disclosed.
摘要翻译：一种方法包括：对于所选择的用户设备，对于部分由所选择的用户设备对应的并且由多个小区的天线接收的信号，其中每个小区具有一个或多个天线，并且其中每个信号来自所述天线中的单个天线执行以下操作：使用来自该小区的一个或多个信号来估计每个小区的载波频率偏移; 通过至少使用相关联的小区的估计的载波频率偏移来对来自每个小区的每个信号执行频率偏移校正; 估计每个频偏补偿信号的信道; 以及使用估计的信道组合每个频偏校正信号以产生从所选择的用户设备发送的一个或多个符号的一个或多个估计。可以在组合之后执行第二频率偏移校正。还公开了装置，计算机程序和软件。

2. 发明申请

WO2008027638A3 SYSTEM AND METHOD FOR DETERMINING A CARRIER TO INTERFERENCE-NOISE RATIO 审中-公开
标题翻译：用于确定载波到干扰噪声比的系统和方法
公开(公告)号：WO2008027638A3
公开(公告)日：2008-07-17
申请号：PCT/US2007070388
申请日：2007-06-05
申请人： MOTOROLA INC , YU XIAOYONG , WU JIAN J
发明人： YU XIAOYONG , WU JIAN J
IPC分类号： H03D1/04
CPC分类号： H04L1/20 , H04B17/318 , H04B17/336 , H04B17/345 , H04L5/003 , H04L27/2647
摘要： An apparatus, method, and computer program product are provided for determining a carrier to interference-noise ratio (CINR) and received signal strength indicator (RSSI) in a wireless communication system. A base station (302-304) calculates (506) a carrier power (C) of at least one user in the wireless communication system, and a noise interference (NI) (514) for one cell or sector in the wireless communication system. The carrier power (C) is divided by the noise interference (NI) to produce a value representative of the carrier to interference-noise ratio (C/NI). The received signal strength indicator (RSSI) is derived (510) by combining weighted carrier power (C) and noise interference (NI).
摘要翻译：提供了一种用于在无线通信系统中确定载波与干扰噪声比（CINR）和接收信号强度指示符（RSSI）的装置，方法和计算机程序产品。基站（302-304）在无线通信系统中计算（506）至少一个用户的载波功率（C）和无线通信系统中的一个小区或扇区的噪声干扰（NI）（514）。载波功率（C）除以噪声干扰（NI），以产生代表载波与干扰噪声比（C / NI）的值。通过组合加权载波功率（C）和噪声干扰（NI），导出接收信号强度指示符（RSSI）（510）。

3. 发明申请

WO2007149610A3 ESTIMATION OF CINR AND RSSI IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中CINR和RSSI的估计
公开(公告)号：WO2007149610A3
公开(公告)日：2008-12-24
申请号：PCT/US2007064878
申请日：2007-03-26
申请人： MOTOROLA INC , YU XIAOYONG , ROTTINGHAUS ALAN P , WU JIAN J
发明人： YU XIAOYONG , ROTTINGHAUS ALAN P , WU JIAN J
IPC分类号： H04B17/00
CPC分类号： H04L27/2647 , H04B17/318 , H04B17/336
摘要： A method for selecting at least one operating parameter of a communication system (100). The method can include determining a receive signal strength indicator (RSSI) for a communication signal (330). An intermediate value (D) for the communication signal can be determined based on, at least in part, a received value (ri) of at least one known datum, a predetermined value (pi) of the known datum and a channel estimate (hi ). Further, a carrier to interference and noise ratio (CINR) can be estimated based on, at least in part, the RSSI and the intermediate value. The operating parameter can be selected based on, at least in part, the estimated CINR.
摘要翻译：一种用于选择通信系统（100）的至少一个操作参数的方法。该方法可以包括确定通信信号（330）的接收信号强度指示符（RSSI）。可以至少部分地基于至少一个已知数据的接收值（ri），已知数据的预定值（pi）和信道估计（hi）来确定用于通信信号的中间值（D））。此外，可以至少部分地基于RSSI和中间值来估计载波与干扰和噪声比（CINR）。可以至少部分地基于估计的CINR来选择操作参数。

4. 发明申请

WO2008027638A2 SYSTEM AND METHOD FOR DETERMINING A CARRIER TO INTERFERENCE-NOISE RATIO 审中-公开
标题翻译：确定载波干扰噪声比的系统和方法
公开(公告)号：WO2008027638A2
公开(公告)日：2008-03-06
申请号：PCT/US2007/070388
申请日：2007-06-05
申请人： MOTOROLA, INC. , YU, Xiaoyong , WU, Jian, J.
发明人： YU, Xiaoyong , WU, Jian, J.
IPC分类号： H04B7/216
CPC分类号： H04L1/20 , H04B17/318 , H04B17/336 , H04B17/345 , H04L5/003 , H04L27/2647
摘要： An apparatus, method, and computer program product are provided for determining a carrier to interference-noise ratio (CINR) and received signal strength indicator (RSSI) in a wireless communication system. A base station (302-304) calculates (506) a carrier power (C) of at least one user in the wireless communication system, and a noise interference (NI) (514) for one cell or sector in the wireless communication system. The carrier power (C) is divided by the noise interference (NI) to produce a value representative of the carrier to interference-noise ratio (C/NI). The received signal strength indicator (RSSI) is derived (510) by combining weighted carrier power (C) and noise interference (NI).
摘要翻译：提供了用于在无线通信系统中确定载波干扰噪声比（CINR）和接收信号强度指示符（RSSI）的装置，方法和计算机程序产品。基站（302-304）计算（506）无线通信系统中的至少一个用户的载波功率（C）以及无线通信系统中的一个小区或扇区的噪声干扰（NI）（514）。载波功率（C）除以噪声干扰（NI）以产生表示载波干扰噪声比（C / NI）的值。通过组合加权载波功率（C）和噪声干扰（NI）来导出（510）接收信号强度指示符（RSSI）。

5. 发明申请

WO2007112168A2 ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING (OFDM) SYSTEM RECEIVER USING LOW-DENSITY PARITY-CHECK (LDPC) CODES 审中-公开
标题翻译：使用低密度奇偶校验（LDPC）码的正交频分多址（OFDM）系统接收器
公开(公告)号：WO2007112168A2
公开(公告)日：2007-10-04
申请号：PCT/US2007/062802
申请日：2007-02-26
申请人： MOTOROLA, INC. , YU, Xiaoyong, , KLOOS, Michael N., , ROTTINGHAUS, Alan P.,
发明人： YU, Xiaoyong, , KLOOS, Michael N., , ROTTINGHAUS, Alan P.,
IPC分类号： H04K1/10
CPC分类号： H04L25/03171 , H03M13/09 , H03M13/11 , H03M13/31 , H03M13/3738 , H03M13/6306 , H03M13/6325 , H04L1/0051 , H04L27/2647 , H04L2025/03414
摘要： Arrangements relating to an Orthogonal Frequency Division Multiplexing (OFDM) receiver (200) can include performing at least one Low-Density Parity Check (LDPC) decoding attempt on a received signal (725) and evaluating at least one parity check for each LDPC decoding attempt (735). Failed LDPC decoding attempts can be counted according to the evaluated parity checks (740). The signal can be selectively processed through at least one joint demodulation-decoding loop according to the counting of failed LDPC decoding attempts (745).
摘要翻译：与正交频分复用（OFDM）接收机（200）相关的安排可以包括对接收信号（725）执行至少一个低密度奇偶校验（LDPC）解码尝试，并且针对每个LDPC解码尝试评估至少一个奇偶校验（735）。可以根据评估的奇偶校验检查来计算失败的LDPC解码尝试（740）。根据失败的LDPC解码尝试的计数，可以通过至少一个联合解调 - 解码环路选择性地处理信号（745）。

6. 发明申请

WO2004042989A1 ITERATIVE DECODING WITH LIKELIHOOD WEIGHTING 审中-公开
标题翻译：迭代解码与LIKELIHOOD称重
公开(公告)号：WO2004042989A1
公开(公告)日：2004-05-21
申请号：PCT/EP2003/050798
申请日：2003-11-07
申请人： MOTOROLA INC , WHINNETT, Nicholas , WOOD, Steven , YU, Xiaoyong
发明人： WHINNETT, Nicholas , WOOD, Steven , YU, Xiaoyong
IPC分类号： H04L1/00
CPC分类号： H04L1/005 , H04L1/0054 , H04L1/0055 , H04L1/0066 , H04L1/0071
摘要： The invention relates to an error correcting decoder apparatus (100) and method. The decoder apparatus (100) comprises a likelihood estimator (101) which generates a sequence of bit value likelihood estimates, such as log likelihood ratios, for multi bit symbols of a data sequence. The decoder apparatus (100) further comprises a decoder element (103), such as a Maximum A Priori (MAP) or appropriate Soft Output Viterbi decoder. The decoder element (103) generates a decoded data sequence in response to the bit value likelihood estimates. The decoder apparatus (100) also comprises a weighting processor (105) which generates a weighted compensation data sequence from the decoded data sequence. The weighted compensation data is used to modify the sequence of bit value likelihood estimates. The decoding is subsequently repeated using the improved bit value likelihood estimates whereby improved decoding performance is achieved. The invention may be applied to a two decoder element decoding apparatus (200) and may specifically be applied to turbo decoders.
摘要翻译：本发明涉及一种纠错解码装置（100）及方法。解码器装置（100）包括对于数据序列的多位符号产生位值似然估计序列（例如对数似然比）的似然估计器（101）。解码器装置（100）还包括诸如最大优先（MAP）或适当的软输出维特比解码器的解码器元件（103）。解码器元件（103）响应于位值似然估计产生解码数据序列。解码装置（100）还包括加权处理器（105），其从解码数据序列生成加权补偿数据序列。加权补偿数据用于修改比特值似然估计的序列。随后使用改进的比特值似然估计重复解码，由此实现改进的解码性能。本发明可以应用于两个解码器元件解码装置（200），并且可以具体地应用于turbo解码器。

7. 发明申请

WO2010135060A1 TIMING ERROR ESTIMATION IN A WIMAX RECEIVER 审中-公开
标题翻译： WIMAX接收机的时序误差估计
公开(公告)号：WO2010135060A1
公开(公告)日：2010-11-25
申请号：PCT/US2010/032503
申请日：2010-04-27
申请人： MOTOROLA, INC. , YU, Xiaoyong , ROTTINGHAUS, Alan, P. , WILSON, Timothy, J.
发明人： YU, Xiaoyong , ROTTINGHAUS, Alan, P. , WILSON, Timothy, J.
IPC分类号： H04L27/26 , H04B7/04 , H04L25/02 , H04L5/00
CPC分类号： H04L27/2662 , H04L5/0051 , H04L25/0224 , H04L27/2675
摘要： A method, a system (100) and a receiver device (107) provide timing and frequency correction in a spatial division multiple access (SDMA) system. A timing and frequency correction (TFC) logic/utility (110) obtains a timing error estimate by using pilot symbols on a slot of six tiles. The TFC logic estimates (412, 418) the timing error based on pilot phase differences between unique pairs of tiles when the frequency separation of the tiles is less than a threshold value. When none of the unique pairs of tiles satisfies the threshold value, the TFC logic estimates (412, 414) timing error based on an exhaustive search for each candidate phase error value. The TFC logic performs (426) timing error correction via a timing error estimate based on pilots from the symbols received on each antenna. The TFC logic performs (428) inexplicit frequency error correction according to phase differences based on relative symbol indices.
摘要翻译：方法，系统（100）和接收机设备（107）在空分多址（SDMA）系统中提供定时和频率校正。定时和频率校正（TFC）逻辑/效用（110）通过使用六个瓦片的时隙上的导频符号来获得定时误差估计。当块的频率间隔小于阈值时，TFC逻辑基于独特的瓦片对之间的导频相位差来估计（412,418）定时误差。当没有唯一的瓦片对满足阈值时，TFC逻辑基于对每个候选相位误差值的详尽搜索来估计（412,414）定时误差。 TFC逻辑通过基于在每个天线上接收到的符号的导频的定时误差估计来执行（426）定时纠错。 TFC逻辑根据相对符号索引的相位差执行（428）非均匀频率误差校正。

8. 发明申请

WO2010033345A3 METHOD AND SYSTEM FOR RADIO FREQUENCY (RF) GROUP DELAY COMPENSATION IN A BROADBAND SYSTEM 审中-公开
标题翻译：用于宽带系统中的射频（RF）组延迟补偿的方法和系统
公开(公告)号：WO2010033345A3
公开(公告)日：2010-05-14
申请号：PCT/US2009054721
申请日：2009-08-24
申请人： MOTOROLA INC , YU XIAOYONG
发明人： YU XIAOYONG
IPC分类号： H04B7/26 , H04L27/26 , H04W88/02
CPC分类号： H04L27/2657 , H04L27/2613 , H04L27/2675 , H04L2027/0067 , H04L2027/0095
摘要： A radio device (102) operable to compensate for a large RF filter group delay variation is provided. The radio device includes a receiving unit (245) operable to receive an OFDM signal that comprises pilot subcarrier signals and data subcarrier signals. The radio device further includes a group delay (GD) compensator (385), operable in frequency domain, and configured to perform phase rotation to correct a group delay individually on tones of an OFDM symbol. The phase rotation is calculated as a function of the phase shifts of the received pilot subcarrier signals and subcarrier index.
摘要翻译：提供了一种可操作来补偿大的RF滤波器组延迟变化的无线电设备（102）。该无线电设备包括接收单元（245），该接收单元可操作来接收包括导频副载波信号和数据副载波信号的OFDM信号。无线电设备还包括群时延（GD）补偿器（385），其可在频域中操作，并且被配置为执行相位旋转以分别校正OFDM符号的音调上的群延迟。相位旋转是作为接收到的导频副载波信号和副载波索引的相移的函数来计算的。

9. 发明申请

WO2009085625A1 A METHOD FOR UPLINK COLLABORATIVE SDMA USER PAIRING IN WIMAX 审中-公开
标题翻译：用于在WIMAX中上线协作SDMA用户配对的方法
公开(公告)号：WO2009085625A1
公开(公告)日：2009-07-09
申请号：PCT/US2008/086345
申请日：2008-12-11
申请人： MOTOROLA, INC. , YU, Xiaoyong,
发明人： YU, Xiaoyong,
IPC分类号： H04L27/26 , H04W72/04
CPC分类号： H04L5/0023 , H04L5/0037 , H04L5/0062 , H04L25/0204
摘要： A method, system, and communication network pair up independent information signals on the same time-frequency orthogonal frequency division multiplexing (OFDM) resources for uplink (UL) collaborative SDMA, in a wireless communication system. An uplink scheduling (ULS) utility (210) employs an estimated channel gain associated with the transmission path(s) of each user (101, 102, 103) to create a pairing metric that effectively computes the correlation between each pair of independent information signals (201, 202, 203) on a specific sub-carrier frequency channel. Pairs of information signals are considered as possible groupings when the values of the corresponding pairing metrics are less than a threshold maximum value. An optimal selection of final pairings is based on the relative values of the pairing metric(s) and other priority conditions which may include quality of service requirements. The ULS utility enables the UL scheduler (211) to pair information signals with a clear spatial distinction and minimal correlation.
摘要翻译：一种方法，系统和通信网络在无线通信系统中，在上行链路（UL）协作SDMA的相同时频正交频分复用（OFDM）资源上对对独立信息信号。上行链路调度（ULS）实用程序（210）使用与每个用户（101,102,103）的传输路径相关联的估计信道增益来创建有效地计算每对独立信息信号之间的相关性的配对度量（201,202,203）在特定副载波频率信道上。当相应配对度量的值小于阈值最大值时，对信息信号被认为是可能的分组。最终配对的最佳选择是基于配对度量和可能包括服务质量要求的其他优先级条件的相对值。 ULS实用程序使得UL调度器（211）能够将信息信号与清晰的空间区别和最小的相关性配对。

10. 发明申请

WO2009026050A1 METHOD AND APPARATUS FOR CARRIER POWER AND INTERFERENCE-NOISE ESTIMATION IN SPACE DIVISION MULTIPLE ACCESS AND MULTIPLE-INPUT/MULTIPLE-OUTPUT WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：空间分集多路访问和多输入/多输出无线通信系统中载波功率和干扰噪声估计的方法与装置
公开(公告)号：WO2009026050A1
公开(公告)日：2009-02-26
申请号：PCT/US2008/072910
申请日：2008-08-12
申请人： MOTOROLA, INC. , YU, Xiaoyong , WU, Jian J.
发明人： YU, Xiaoyong , WU, Jian J.
IPC分类号： H04B1/10
CPC分类号： H04L27/2647 , H04B7/0845 , H04B17/26 , H04B17/309 , H04B17/318 , H04B17/336 , H04L25/03159
摘要： Estimates of carrier signal power S and interference-noise NI at the output of the equalizer in a wireless communication system is obtained by (i) determining (406) the variance, σ 2 z , of the noise at the output of the equalizer dependent upon the equalization matrix, WH and an estimate of the variance σ 2 of the noise at the receiving antennas, (ii) determining (412) the interference, σ 2 l , at the output of the equalizer dependent upon the equalization matrix, W H , a transfer function matrix, H, of transmission paths between transmitting antennas and receiving antennas, and an estimate σ 2 x of the variance of the transmitted signals and (iii) determining (410) the power, S , of the carrier signal at the output of the equalizer dependent upon W H , H and σ 2 x . The estimate of the interference-noise NI is calculated as NI = σ 2 l + σ 2 z . These values may be used to facilitate adaptation of the wireless communication system.
摘要翻译：通过以下步骤获得在无线通信系统中的均衡器的输出处的载波信号功率S和干扰噪声NI的估计：（i）确定（406）均衡器的输出处的噪声的方差s2z，这取决于均衡矩阵，WH和在接收天线处的噪声的方差s 2的估计，（ii）根据均衡矩阵WH，在均衡器的输出端确定（412）干扰s2 l，传递函数矩阵，H，发送天线和接收天线之间的传输路径，以及发射信号的方差的估计s2 x，以及（iii）根据均衡器的输出确定（410）载波信号的功率S WH，H和s2 x。干扰噪声NI的估计值计算为NI = s2 l + s2 z。这些值可以用于促进无线通信系统的适配。

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