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21. 发明申请

WO2008033985A3 BEACON ASSISTED CELL SEARCH IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中的信标辅助小区搜索
公开(公告)号：WO2008033985A3
公开(公告)日：2008-08-21
申请号：PCT/US2007078369
申请日：2007-09-13
申请人： QUALCOMM INC , MALLADI DURGA PRASAD , MONTOJO JUAN , LI JUNYI , KIM BYOUNG-HOON
发明人： MALLADI DURGA PRASAD , MONTOJO JUAN , LI JUNYI , KIM BYOUNG-HOON
IPC分类号： H04L27/26 , H04W48/12 , H04W48/16
CPC分类号： H04W56/001 , H04B1/713 , H04J11/0069 , H04L5/0023 , H04L5/0048 , H04L5/0053 , H04L5/0064 , H04L27/2656 , H04W48/12 , H04W48/16
摘要： Techniques for transmitting synchronization signals to assist user equipments (UEs) perform cell searches are described. In one design, a base station for a cell may generate and transmit a primary synchronization signal and a secondary synchronization signal, which may be used by the UEs for initial cell search at power up. The base station may also generate and transmit one or more beacon signals, which may be used by the UEs for neighbor cell search to detect for neighbor cells. The number of beacon signals to transmit and the set of subcarriers usable for each beacon signal may be determined based on the system bandwidth. Each beacon signal may be mapped to one subcarrier in the set of subcarriers in each beacon symbol period. This one subcarrier may be determined based on a beacon hopping pattern or a beacon code and may be dependent on a cell identifier (ID).
摘要翻译：描述了用于发送同步信号以辅助用户设备（UE）执行小区搜索的技术。在一个设计中，用于小区的基站可以生成并发送主同步信号和辅同步信号，其可以在上电时由UE用于初始小区搜索。基站还可以生成并发送一个或多个信标信号，这些信标信号可以被UE用于相邻小区搜索以检测相邻小区。可以基于系统带宽确定要发送的信标信号的数量和可用于每个信标信号的子载波集合。每个信标信号可以被映射到每个信标码元周期中的该组副载波中的一个副载波。这一个副载波可以基于信标跳频模式或信标码来确定，并且可以取决于小区标识符（ID）。

22. 发明申请

WO2008003087A3 METHOD AND APPARATUS FOR SELECTION MECHANISM BETWEEN OFDM-MIMO AND LFDM-SIMO 审中-公开
标题翻译：用于OFDM-MIMO和LFDM-SIMO之间的选择机制的方法和设备
公开(公告)号：WO2008003087A3
公开(公告)日：2008-07-10
申请号：PCT/US2007072538
申请日：2007-06-29
申请人： QUALCOMM INC , XU HAO , MALLADI DURGA , KIM BYOUNG-HOON
发明人： XU HAO , MALLADI DURGA , KIM BYOUNG-HOON
IPC分类号： H04L1/00 , H04L27/26
CPC分类号： H04L1/0025 , H04B7/0689 , H04L1/0002 , H04L1/0021 , H04L27/2601 , H04L27/2614 , H04W52/245 , H04W52/367 , H04W52/42
摘要： Systems and methodologies are described that facilitate switching between various combinations of MIMO, SIMO, SISO and OFDM, LFDM and IFDM. According to various aspects, a method for a wireless communication network is provided that includes: receiving a first set of data information, wherein the first set of information comprising a first value, determining if the first value is above a threshold and transmitting an indication to switch to using a first transmission technique if determined that the first value is above the threshold.
摘要翻译：描述了有助于在MIMO，SIMO，SISO和OFDM，LFDM和IFDM的各种组合之间切换的系统和方法。根据各个方面，提供了一种用于无线通信网络的方法，该方法包括：接收第一组数据信息，其中第一组信息包括第一值;确定第一值是否高于阈值;以及向如果确定第一值高于阈值，则切换到使用第一传输技术。

23. 发明申请

WO2008042865A2 SYNCHRONIZATION TRANSMISSIONS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的同步传输
公开(公告)号：WO2008042865A2
公开(公告)日：2008-04-10
申请号：PCT/US2007080111
申请日：2007-10-01
申请人： QUALCOMM INC , KIM BYOUNG-HOON , MALLADI DURGA PRASAD
发明人： KIM BYOUNG-HOON , MALLADI DURGA PRASAD
IPC分类号： H04B1/707
CPC分类号： H04L5/0053 , H04B1/7083 , H04B2201/70701 , H04J11/0069 , H04L5/0007
摘要： To support cell search, multiple (e.g., two) synchronization transmissions are sent in a frame with non-uniform spacing. Information is conveyed via the non-equal distances between consecutive synchronization transmissions. Multiple levels of non-uniform spacing may be used to convey different types of information. In one design, the multiple synchronization transmissions are sent in different subframes of a frame, and each synchronization transmission is sent in one of multiple symbol periods in a respective subframe. The synchronization transmissions may be sent in non-evenly spaced subframes to convey frame boundary. One synchronization transmission may be sent in one of multiple possible symbol periods depending on the information, e.g., a particular group of cell IDs, being conveyed. The distances between synchronization transmissions may also be used to convey cyclic prefix length. A secondary synchronization transmission carrying a cell ID may be sent at a predetermined offset from one of the multiple synchronization transmissions.
摘要翻译：为了支持小区搜索，在具有不均匀间隔的帧中发送多个（例如，两个）同步传输。通过连续的同步传输之间的不相等的距离来传送信息。可以使用多个级别的不均匀间距来传达不同类型的信息。在一种设计中，多个同步传输在帧的不同子帧中发送，并且每个同步传输在相应子帧中的多个符号周期之一中发送。可以以非均匀间隔的子帧发送同步传输以传送帧边界。可以根据正在传送的信息（例如，特定的小区ID组）以多个可能的符号周期之一发送一个同步传输。同步传输之间的距离也可用于传送循环前缀长度。可以以多个同步传输之一的预定偏移量发送携带小区ID的辅同步传输。

24. 发明申请

WO2007051206A3 METHOD AND APPARATUS FOR CHANNEL AND NOISE ESTIMATION 审中-公开
标题翻译：通道和噪声估计的方法和装置
公开(公告)号：WO2007051206A3
公开(公告)日：2007-10-25
申请号：PCT/US2006060372
申请日：2006-10-30
申请人： QUALCOMM INC , KIM BYOUNG-HOON
发明人： KIM BYOUNG-HOON
IPC分类号： H04L1/06 , H04L25/02 , H04L25/03
CPC分类号： H04B7/04 , H04L25/0204 , H04L25/0228
摘要： Techniques for performing channel and noise estimation for a MIMO transmission sent from multiple transmit antennas to multiple receive antennas are described. Samples are obtained from the receive antennas. For a first scheme, channel estimates are derived by correlating the samples with at least one pilot sequence, and signal, noise and interference statistics are also estimated based on the samples. For a second scheme, total received energy as well as signal and interference energy are estimated based on the samples. Noise is then estimated based on the estimated total received energy and the estimated signal and interference energy. For a third scheme, signal and on-time interference statistics are estimated based on the samples. Noise and multipath interference statistics are also estimated based on the samples. Signal, noise and interference statistics are then estimated based on the estimated signal and on-time interference statistics and the estimated noise and multipath interference statistics.
摘要翻译：描述用于对从多个发射天线发送到多个接收天线的MIMO传输进行信道和噪声估计的技术。从接收天线获得样本。对于第一方案，通过将样本与至少一个导频序列相关而导出信道估计，并且信号，噪声和干扰统计也是基于样本估计的。对于第二种方案，基于样本估计总接收能量以及信号和干扰能量。然后基于估计的总接收能量和估计的信号和干扰能量来估计噪声。对于第三种方案，基于样本估计信号和准时干扰统计。噪声和多径干扰统计也根据样本估算。然后基于估计的信号和准时干扰统计以及估计的噪声和多径干扰统计来估计信号，噪声和干扰统计。

25. 发明申请

WO2007092945A2 SPECTRAL SHAPING TO REDUCE PEAK-TO-AVERAGE RATIO IN WIRELESS COMMUNICATION 审中-公开
标题翻译：光谱成形以降低无线通信中的峰值平均比率
公开(公告)号：WO2007092945A2
公开(公告)日：2007-08-16
申请号：PCT/US2007061884
申请日：2007-02-08
申请人： QUALCOMM INC ATTN INTERNAT IP , KIM BYOUNG-HOON , MALLADI DURGA PRASAD
发明人： KIM BYOUNG-HOON , MALLADI DURGA PRASAD
IPC分类号： H04L27/26
CPC分类号： H04L1/0001 , H04L1/0003 , H04L25/03828 , H04L27/2614 , Y02D50/10
摘要： Techniques for performing spectral shaping to achieve a desired peak-to- average ratio (PAR) are described. Spectral shaping may be selectively performed for a single-carrier frequency division multiplexing (SC-FDM) signal based on one or more criteria, e.g., in transmit power limited conditions and/or if a modulation scheme with lower PAR is unavailable. At least one parameter of a window function or spectral shaping filter may also be adjusted based on at least one characteristic of the SC-FDM signal. For example, the roll-off of the spectral shaping filter may be adjusted based on the modulation scheme and/or the number of subcarriers used for the SC-FDM signal. A transmitter may perform spectral shaping on modulation symbols, if enabled, to obtain spectrally shaped symbols. Spectral shaping may be performed in the frequency domain either within an allocated bandwidth or with bandwidth expansion. The SC- FDM signal may be generated based on the spectrally shaped symbols.
摘要翻译：描述了用于执行频谱整形以实现期望的峰均比（PAR）的技术。可以基于一个或多个准则（例如，在发射功率受限的条件下和/或如果具有较低PAR的调制方案不可用）选择性地对单载波频分复用（SC-FDM）信号执行频谱整形。窗函数或频谱整形滤波器的至少一个参数也可以基于SC-FDM信号的至少一个特性来调整。例如，频谱整形滤波器的滚降可以基于用于SC-FDM信号的调制方案和/或子载波的数量来调整。如果启用，发射机可以对调制符号执行频谱整形，以获得频谱整形的符号。频谱整形可以在分配的带宽内或带宽扩展内在频域中执行。 SC-FDM信号可以基于光谱整形符号生成。

26. 发明申请

WO2006116704A3 TRANSMIT FORMAT SELECTION WITH CONSIDERATION FOR RESOURCE REUSE 审中-公开
标题翻译：发送格式选择考虑资源重用
公开(公告)号：WO2006116704A3
公开(公告)日：2007-03-29
申请号：PCT/US2006016301
申请日：2006-04-25
申请人： QUALCOMM INC , KIM BYOUNG-HOON , MALLADI DURGA PRASAD , SARKAR SANDIP
发明人： KIM BYOUNG-HOON , MALLADI DURGA PRASAD , SARKAR SANDIP
IPC分类号： H04J99/00 , H04L1/00
CPC分类号： H04L1/0036 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0026 , H04L1/0034 , H04L1/16 , H04L5/0007 , H04L5/0016 , H04L5/0023 , H04L5/0028 , H04L5/0037 , H04L5/006
摘要： Techniques for selecting transmit formats in a manner to account for the degrees of resource reuse for multiple data streams sent simultaneously from multiple antennas are described. The degree of resource reuse for each data stream indicates the amount of reuse of resources (e.g., orthogonal codes or subcarriers) observed by that stream. Interference estimates for the multiple data streams are derived based on an initial resource assignment. The degrees of resource reuse are determined based on the interference estimates and are used to derive at least one correction factor. At least one transmit format is then selected for the data streams using the at least one correction factor. Each data stream is associated with a transmit format that indicates the amount of resources to use for the data stream and other parameters. Resources are assigned to each data stream in accordance with its transmit format.
摘要翻译：描述了以考虑从多个天线同时发送的多个数据流的资源重用程度来选择发送格式的技术。每个数据流的资源重用程度指示由该流观察到的资源（例如，正交码或子载波）的重用量。基于初始资源分配导出多个数据流的干扰估计。基于干扰估计来确定资源重用度，并且用于导出至少一个校正因子。然后使用至少一个校正因子为数据流选择至少一个发送格式。每个数据流与指示用于数据流的资源量和其他参数的发送格式相关联。根据其发送格式将资源分配给每个数据流。

27. 发明申请

WO2009023730A2 CODING AND MULTIPLEXING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中控制信息的编码和复用
公开(公告)号：WO2009023730A2
公开(公告)日：2009-02-19
申请号：PCT/US2008073054
申请日：2008-08-13
申请人： QUALCOMM INC , MALLADI DURGA PRASAD , KIM BYOUNG-HOON , MONTOJO JUAN , SARKAR SANDIP
发明人： MALLADI DURGA PRASAD , KIM BYOUNG-HOON , MONTOJO JUAN , SARKAR SANDIP
IPC分类号： H04L1/18 , H04L27/26
CPC分类号： H04J11/00 , H04B7/0417 , H04L1/0026 , H04L1/0028 , H04L1/0057 , H04L1/0072 , H04L1/1607 , H04L1/1671 , H04L1/1812 , H04L1/1822 , H04L5/0007 , H04L5/0053 , H04L5/0064 , H04L5/0091
摘要： Techniques for sending control information in a wireless communication system are described. In an aspect, a UE spreads control information across frequency with a DFT and across time with an orthogonal sequence to obtain output data for the control information. In one design, the UE receives codewords for N HARQ processes in N downlink subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, generates output data for the ACK information, and sends the output data in one of M uplink subframes. In another aspect, first control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in time and frequency domains. Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in time domain and spreading in frequency domain.
摘要翻译：描述了用于在无线通信系统中发送控制信息的技术。在一个方面中，UE利用DFT跨越时间利用正交序列跨越时间来传播控制信息，以获得控制信息的输出数据。在一种设计中，UE在N个下行链路子帧中接收用于N个HARQ过程的码字，确定每个HARQ过程的ACK值，编码N个HARQ过程的N个ACK值以获得ACK信息，生成ACK信息的输出数据，在M个上行链路子帧之一中输出数据。另一方面，基于利用时域和频域中的码分复用的第一编码和复用方案来处理第一控制信息。第二控制信息基于利用时域中的码分复用并在频域中扩展的第二编码和复用方案来处理。

28. 发明申请

WO2007092945A8 SPECTRAL SHAPING TO REDUCE PEAK-TO-AVERAGE RATIO IN WIRELESS COMMUNICATION 审中-公开
标题翻译：光谱成像在无线通信中降低峰值平均比
公开(公告)号：WO2007092945A8
公开(公告)日：2009-01-08
申请号：PCT/US2007061884
申请日：2007-02-08
申请人： QUALCOMM INC , KIM BYOUNG-HOON , MALLADI DURGA PRASAD
发明人： KIM BYOUNG-HOON , MALLADI DURGA PRASAD
IPC分类号： H04L27/26
CPC分类号： H04L1/0001 , H04L1/0003 , H04L25/03828 , H04L27/2614 , Y02D50/10
摘要： Techniques for performing spectral shaping to achieve a desired peak-to- average ratio (PAR) are described. Spectral shaping may be selectively performed for a single-carrier frequency division multiplexing (SC-FDM) signal based on one or more criteria, e.g., in transmit power limited conditions and/or if a modulation scheme with lower PAR is unavailable. At least one parameter of a window function or spectral shaping filter may also be adjusted based on at least one characteristic of the SC-FDM signal. For example, the roll-off of the spectral shaping filter may be adjusted based on the modulation scheme and/or the number of subcarriers used for the SC-FDM signal. A transmitter may perform spectral shaping on modulation symbols, if enabled, to obtain spectrally shaped symbols. Spectral shaping may be performed in the frequency domain either within an allocated bandwidth or with bandwidth expansion. The SC- FDM signal may be generated based on the spectrally shaped symbols.
摘要翻译：描述了用于执行光谱整形以获得期望的峰均比（PAR）的技术。可以基于一个或多个标准，例如在发射功率受限状态和/或如果具有较低PAR的调制方案不可用，可以针对单载波频分复用（SC-FDM）信号选择性地执行频谱整形。还可以基于SC-FDM信号的至少一个特性来调整窗口函数或频谱整形滤波器的至少一个参数。例如，可以基于用于SC-FDM信号的调制方案和/或子载波的数量来调整频谱整形滤波器的滚降。发射机可以在调制符号上执行频谱整形，如果使能，则获得频谱形状的符号。光谱整形可以在分配的带宽内或频带扩展中在频域中执行。可以基于频谱形状的符号来生成SC-FDM信号。

29. 发明申请

WO2008042874A3 METHOD AND APPARATUS FOR PROCESSING PRIMARY AND SECONDARY SYNCHRONIZATION SIGNALS FOR WIRELESS COMMUNICATION 审中-公开
标题翻译：用于处理无线通信的主要和次要同步信号的方法和设备
公开(公告)号：WO2008042874A3
公开(公告)日：2008-11-20
申请号：PCT/US2007080120
申请日：2007-10-01
申请人： QUALCOMM INC , MALLADI DURGA PRASAD , KIM BYOUNG-HOON , LUO TAO
发明人： MALLADI DURGA PRASAD , KIM BYOUNG-HOON , LUO TAO
IPC分类号： H04B1/707 , H04J13/00 , H04J13/10 , H04L27/26
CPC分类号： H04L27/2613 , H04B2201/70701 , H04J11/0069 , H04J13/0059 , H04J13/107
摘要： Techniques for facilitating cell search by user equipments (UEs) in a wireless communication system are described. In an aspect, a primary synchronization code (PSC) sequence may be generated based on a Frank sequence and a constant amplitude sequence that is repeated multiple times. In another aspect, a set of PSC sequences may be generated based on complementary sequences having good aperiodic correlation properties and efficient implementations. In one design, PSC sequences A+B and B+A may be formed based on Golay complementary sequences A and B, there "+" denotes concatenation. In yet another aspect, a set of secondary synchronization code (SSC) sequences may be generated based on a set of base sequences and different modulation symbols of a modulation scheme. Each base sequence may be modulated by each of M possible modulation symbols for the modulation scheme to obtain M different SSC sequences.
摘要翻译：描述了用于促进无线通信系统中的用户设备（UE）的小区搜索的技术。在一个方面，可以基于Frank序列和重复多次的恒定幅度序列来生成主同步码（PSC）序列。在另一方面，可基于具有良好的非周期性相关特性和有效实施的互补序列来生成一组PSC序列。在一种设计中，PSC序列A + B和B + A可以基于戈莱互补序列A和B形成，其中“+”表示串联。在又一方面，可以基于调制方案的一组基本序列和不同调制符号来生成一组次要同步码（SSC）序列。每个基本序列可由调制方案的M个可能调制符号中的每一个调制，以获得M个不同的SSC序列。

30. 发明申请

WO2008030806A3 CODEWORD PERMUTATION AND REDUCED FEEDBACK FOR GROUPED ANTENNAS 审中-公开
标题翻译：对分组天线的码字排序和减少反馈
公开(公告)号：WO2008030806A3
公开(公告)日：2008-10-09
申请号：PCT/US2007077536
申请日：2007-09-04
申请人： QUALCOMM INC , KIM BYOUNG-HOON
发明人： KIM BYOUNG-HOON
IPC分类号： H04B7/06
CPC分类号： H04B7/0691 , H04B7/0632 , H04B7/0641 , H04L5/0023
摘要： Systems and methodologies are described that facilitate reducing feedback required to be transmitted on a reverse link channel in response to a forward link data transmission for multiple-input multiple-output (MIMO) wireless communication systems. In a per group rate control MIMO system, a codeword can be linked to more than one layer. Codewords are mixed among antennas in the MIMO systems based upon a symmetric permutation of antennas groups. Further, codewords are transmitted in permuted form so that receivers can reduce feedback to a base channel quality indicator (CQI) and a differential CQI. Additionally, spatial diversity is increased for each codeword improving the robustness of the system against inaccurate CQI reports.
摘要翻译：描述了系统和方法，其有助于减少响应于用于多输入多输出（MIMO）无线通信系统的前向链路数据传输而在反向链路信道上传输的反馈。在每组速率控制MIMO系统中，码字可以链接到多个层。基于天线组的对称置换，码字在MIMO系统中的天线之间混合。此外，码字以置换形式发送，使得接收器可以将反馈减少到基本信道质量指示符（CQI）和差分CQI。另外，对于每个码字，空间分集增加，改善了系统针对不准确的CQI报告的鲁棒性。

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