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公开(公告)号：JP2012199937A
公开(公告)日：2012-10-18
申请号：JP2012106747
申请日：2012-05-08
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： BYUN-HON KIM , MALLADI DURGA PRASAD , DUNG N DOAN
CPC classification number: H04W28/18 , H04L1/001 , H04L1/0033 , H04L1/0072 , H04L1/0079 , H04L1/06 , H04L5/0007 , H04L27/2601
Abstract: PROBLEM TO BE SOLVED: To facilitate bandwidth-efficient non-coherent signaling for uplink control channel transmissions.SOLUTION: A complex orthogonal codeword set can comprise a first subset of codewords having a desirable cross-correlation property and one or more other subsets of codewords that can include expurgated codewords. The expurgated codewords can include discarded codewords and/or codeword pairs that produce a worst-case cross-correlation property. The codeword set and subsets are determined based at least in part on a predefined codeword criterion. A portion of the discarded codewords can be used for other purposes, such as erasure decoding, interference-level estimation, and/or multi-mode control channel operation.
Abstract translation: 要解决的问题：为了促进用于上行链路控制信道传输的带宽有效的非相干信令。 解决方案：复数正交码字集合可以包括具有期望的互相关属性的码字的第一子集和一个或多个可以包括被排除的码字的码字子集。 被排除的码字可以包括产生最坏情况互相关属性的丢弃码字和/或码字对。 至少部分地基于预定义的码字标准来确定码字集合和子集。 丢弃的码字的一部分可以用于其它目的，例如擦除解码，干扰电平估计和/或多模式控制信道操作。 版权所有（C）2013，JPO＆INPIT
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62.发明专利Method and apparatus for cell search in orthogonal wireless communication system 有权正交无线通信系统中小区搜索的方法和装置
公开(公告)号：JP2012165401A
公开(公告)日：2012-08-30
申请号：JP2012055942
申请日：2012-03-13
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MONTOJO JUAN , BYUN-HON KIM , MALLADI DURGA PRASAD , TAO RUO
CPC classification number: H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02B60/50 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
Abstract: PROBLEM TO BE SOLVED: To provide systems and methodologies that provide techniques for efficient cell search in a wireless communication system.SOLUTION: A frequency reuse pattern 510 is generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a Node B based on cell IDs or cell group IDs for the cells. The frequency shifts applied to the reference signals can then be utilized as a basis for multiplexing the reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to the reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.
Abstract translation: 要解决的问题：提供在无线通信系统中提供用于有效小区搜索的技术的系统和方法。 解决方案：通过对基于小区的小区ID或小区组ID为从节点B提供覆盖的小区发射的参考信号应用频移来生成频率重用模式510。 然后，施加到参考信号的频移可以用作使用频分复用（FDM）或FDM和其他复用技术的组合来复用来自不同小区的参考信号的基础。 可以进一步对从各小区发送的参考信号进行其他调整，例如发送功率调整，以提高检测性能。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2012110005A
公开(公告)日：2012-06-07
申请号：JP2012000202
申请日：2012-01-04
Applicant: QUALCOMM INC
Inventor： MALLADI DURGA PRASAD , DAMNJANOVIC ALEKSANDAR , CHAPONNIERE ETIENNE F
Abstract: PROBLEM TO BE SOLVED: To provide systems and methods that facilitate handing over mobile device communications in a wireless network from a source base station to a target base station without using a random access channel (RACH).SOLUTION: A mobile device 304 can monitor multiple base stations 302 to determine timing information related thereto and access scheduling request channels for the base stations. When ready for handover, the mobile device 304 can request data resources from a target base station 302 over the scheduling request channel using the appropriate timing information.
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公开(公告)号：JP2012054962A
公开(公告)日：2012-03-15
申请号：JP2011221081
申请日：2011-10-05
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MONTOJO JUAN , MALLADI DURGA PRASAD
CPC classification number: H04L5/0091 , H04L5/0007 , H04L5/0053 , H04L5/006 , H04L5/0064 , H04L25/03866 , H04W68/025
Abstract: PROBLEM TO BE SOLVED: To provide technology for efficient paging of user equipment (UE) in a wireless communication system.SOLUTION: A cell sends a paging indicator to UE, monitors for an acknowledgement from the UE, and sends a page message to the UE if an acknowledgement is received from the UE. The cell may receive channel quality information from the UE and may send the page message with link adaptation and/or HARQ to improve performance. In another aspect, a cell sends a paging indicator on a shared control channel to UE (612) and sends a page message on a shared data channel to the UE (614). The paging indicator and page message may be sent from multiple cells to the UE. Alternatively, the paging indicator may be sent from multiple cells to the UE, and the page message may be sent from a single cell to the UE.
Abstract translation: 要解决的问题：提供用于无线通信系统中用户设备（UE）的有效寻呼的技术。 解决方案：小区向UE发送寻呼指示符，监视来自UE的确认，并且如果从UE接收到确认，则向UE发送寻呼消息。 小区可以从UE接收信道质量信息，并且可以发送具有链路适配和/或HARQ的寻呼消息以提高性能。 另一方面，小区在共享控制信道上向UE发送寻呼指示符（612），并将共享数据信道上的寻呼消息发送给UE（614）。 寻呼指示符和寻呼消息可以从多个小区发送到UE。 或者，寻呼指示符可以从多个小区发送到UE，并且寻呼消息可以从单个小区发送到UE。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2011205633A
公开(公告)日：2011-10-13
申请号：JP2011055858
申请日：2011-03-14
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MALLADI DURGA PRASAD , WILLENEGGER SERGE D , MONTOJO JUAN
CPC classification number: H04B1/70735 , H04B1/7083 , H04L1/0026 , H04L1/0028 , H04L1/1671 , H04L5/0053 , H04L5/0064 , H04L5/14 , H04W72/0406 , H04W72/0413 , H04W72/085 , H04W74/0833
Abstract: PROBLEM TO BE SOLVED: To reduce hardware changes in legacy single-carrier systems by implementing a multi-carrier point-to-multi-point CDMA system.SOLUTION: The number of common downlink channels, such as timing/synchronization and paging channels is reduced by designating an anchor carrier for transmitting these channels. Procedures for adding carriers and carrier acquisition are simplified through common carrier timing, signaling by the network to the user equipment (UE) of timing offsets and scrambling code selection, and other measures. Channel reuse is employed to minimize changes in asymmetric systems with different numbers of uplink and downlink carriers. The Channel Quality Indicator (CQI) field is divided into multiple subfields to enable transmission of multiple CQIs and ACK/NACK indicators on one uplink carrier.
Abstract translation: 要解决的问题：通过实施多载波点对多点CDMA系统来减少传统单载波系统中的硬件变化。解决方案：缩短公共下行链路信道的数量，如定时/同步和寻呼信道数量减少 通过指定用于发送这些信道的锚定载波。 通过公共载波定时，网络向用户设备（UE）发送定时偏移和扰码选择等措施，简化了载波和载波采集的处理步骤。 使用信道重用来最小化具有不同数量的上行链路和下行链路载波的不对称系统的变化。 信道质量指示符（CQI）字段被划分为多个子字段，以使得能够在一个上行链路载波上传输多个CQI和ACK / NACK指示符。
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Patent Agency Ranking66.发明专利
公开(公告)号：JP2011176836A
公开(公告)日：2011-09-08
申请号：JP2011057888
申请日：2011-03-16
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MALLADI DURGA PRASAD , BLANZ JOSEF J , WEI YONGBIN
CPC classification number: H04B1/7105 , H04B2201/70701 , H04L25/0224 , H04L25/0244 , H04L25/03019 , H04L2025/03522 , H04L2025/0377
Abstract: PROBLEM TO BE SOLVED: To provide a method for estimating a transmitted signal, in a wireless communication system.
SOLUTION: A wireless signal is received that includes a pilot channel and at least one other channel. A transmitted signal is estimated using an equalizer and the received wireless signal. Taps of a filter of the equalizer are adapted through use of a channel estimate. The channel estimate is calculated from the pilot channel. The pilot channel and the at least one other channel are separated.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：提供一种在无线通信系统中估计发送信号的方法。
解决方案：接收包括导频信道和至少一个其他信道的无线信号。 使用均衡器和接收到的无线信号来估计发送信号。 通过使用信道估计来调整均衡器的滤波器的抽头。 信道估计是从导频信道计算的。 导频信道和至少另一个信道被分离。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2011172242A
公开(公告)日：2011-09-01
申请号：JP2011059188
申请日：2011-03-17
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MONTOJA JUAN , MALLADI DURGA PRASAD , TENNY NATHAN EDWARD , GRILLI FRANCESCO , GHOLMIEH AZIZ
CPC classification number: H04W52/0216 , H04W72/1205 , Y02D70/00 , Y02D70/1222 , Y02D70/1242 , Y02D70/1244 , Y02D70/1246 , Y02D70/1262 , Y02D70/23 , Y02D70/24 , Y02D70/25
Abstract: PROBLEM TO BE SOLVED: To transmit and receive data in an efficient manner to potentially improve capacity for a wireless network, and to achieve power savings for a wireless device.
SOLUTION: A continuous packet connectivity (CPC) mode is utilized, which is comprised of multiple discontinuous transmission (DTX) modes and at least one discontinuous reception (DRX) mode. Each DTX mode is associated with different enabled uplink subframes usable for transmission from a wireless device to a network. Each DRX mode is associated with different enabled downlink subframes usable by the network for transmission to the wireless device. The wireless device may power down during non-enabled subframes so as to conserve battery power and quickly perform transitions between the DTX and the DRX modes.
COPYRIGHT: (C)2011,JPO&INPITAbstract translation: 要解决的问题：以有效的方式发送和接收数据，以潜在地提高无线网络的容量，并实现无线设备的功率节省。 解决方案：利用连续分组连接（CPC）模式，其包括多个不连续传输（DTX）模式和至少一个不连续接收（DRX）模式。 每个DTX模式与可用于从无线设备到网络的传输的不同启用的上行链路子帧相关联。 每个DRX模式与由网络可用于传输到无线设备的不同启用的下行链路子帧相关联。 无线设备可以在非启用子帧期间关机，以节省电池电力并且快速地执行DTX与DRX模式之间的转换。 版权所有（C）2011，JPO＆INPIT
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68.发明专利Method and apparatus for block-wise decision-feedback equalization for wireless communication 有权用于无线通信的块式决策反馈均衡的方法和装置
公开(公告)号：JP2011103673A
公开(公告)日：2011-05-26
申请号：JP2010279315
申请日：2010-12-15
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： WEI YONGBIN , KIM BYOUNG-HOON , MALLADI DURGA PRASAD
CPC classification number: H04L25/03063 , H04L25/03057 , H04L25/03159
Abstract: PROBLEM TO BE SOLVED: To provide decision feedback equalization techniques to perform equalization in a manner to achieve good performance in a communication system. SOLUTION: A channel impulse response is estimated and converted to obtain a channel frequency response and a feed-forward filter response is derived on the basis of the channel frequency response and an initialized feedback correlation matrix. A feedback filter response is obtained similarly on the basis of the channel frequency response and the initialized feedback correlation matrix. On the basis of the feed-forward and feedback filter responses, equalization for an input symbol is executed, the equalized symbol is sliced for acquiring a chip estimate. If equalization is performed for multiple iterations, then, for each iteration, a reliability parameter may be updated, the feed-forward and feedback filter responses may be derived on the basis of the updated reliability parameter, and equalization may be performed with the filter responses for the iteration. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提供判决反馈均衡技术以在通信系统中实现良好性能的方式执行均衡。 解决方案：估计和转换信道脉冲响应以获得信道频率响应，并且基于信道频率响应和初始化的反馈相关矩阵导出前馈滤波器响应。 基于信道频率响应和初始化的反馈相关矩阵类似地获得反馈滤波器响应。 基于前馈和反馈滤波器响应，执行输入符号的均衡，对均衡的符号进行分片以获得芯片估计。 如果对多次迭代执行均衡，则对于每个迭代，可以更新可靠性参数，可以基于更新的可靠性参数导出前馈和反馈滤波器响应，并且可以利用滤波器响应来执行均衡 用于迭代。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2013258720A
公开(公告)日：2013-12-26
申请号：JP2013150684
申请日：2013-07-19
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： MALLADI DURGA PRASAD , BYUN-HON KIM
CPC classification number: H04L27/2602 , H04B1/7143 , H04B7/2615
Abstract: PROBLEM TO BE SOLVED: To provide a method for facilitating frequency hopping for single carrier, frequency division multiple access (SC-FDMA) transmission.SOLUTION: User data transmitted within a transmission allocation unit can be frequency-shifted with respect to time-based slots of the allocation unit. Frequency hopping is accomplished while preserving single carrier constraints and a low peak-to-average power ratio (PAPR). Further, various frequency-shifted mechanisms accomplish preservation of single carrier restraints. A scheduler selects among cyclic frequency shifting, transposed frequency shifting, and multiplexing of frequency-selective scheduled and frequency-hopped data based on an audit of scheduled data for the transmission allocation unit. The reduction in interference achieved through frequency hopping is combined with a low PAPR for various data allocation configurations.
Abstract translation: 要解决的问题：提供一种用于促进单载波，频分多址（SC-FDMA）传输的跳频的方法。解决方案：在传输分配单元内发送的用户数据可以相对于基于时隙的频移 的分配单位。 在保持单载波约束和低峰值与平均功率比（PAPR）的同时，实现跳频。 此外，各种频移机构实现单载波限制的保存。 调度器基于对发送分配单元的调度数据的审计来选择循环频移，转置频移和频率选择性调度和跳频数据的多路复用。 通过跳频实现的干扰减少与用于各种数据分配配置的低PAPR相结合。
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70.发明专利
公开(公告)号：JP2013219778A
公开(公告)日：2013-10-24
申请号：JP2013097793
申请日：2013-05-07
Applicant: Qualcomm Inc , クゥアルコム・インコーポレイテッドQualcomm Incorporated
Inventor： SMEE JOHN E , WALTON RODNEY J , MALLADI DURGA PRASAD
CPC classification number: H04L5/0039 , H04B7/0669 , H04B7/0854 , H04L1/0017 , H04L1/0071 , H04L1/0618 , H04L5/0023 , H04L5/0048 , H04L25/0226 , H04L25/03343 , H04L25/03866 , H04L27/2602 , H04L27/261
Abstract: PROBLEM TO BE SOLVED: To provide pilot transmission schemes suitable for use in wireless multi-carrier (e.g., OFDM) communication systems.SOLUTION: These pilot transmission schemes may utilize frequency orthogonality, time orthogonality, or both frequency and time orthogonality to achieve orthogonality among pilots transmitted by multiple base stations on a downlink. Frequency orthogonality is achieved by transmitting the pilots on disjoint sets of subbands. Time orthogonality is achieved by transmitting the pilots using multiple different orthogonal codes (e.g., Walsh codes). The pilots may also be scrambled with multiple different scrambling codes, which are used to randomize pilot interference and to enable identification of transmitters of these pilots.
Abstract translation: 要解决的问题：提供适用于无线多载波（例如，OFDM）通信系统的导频传输方案。解决方案：这些导频传输方案可以利用频率正交性，时间正交性或频率和时间正交性来实现正交性 在下行链路上由多个基站发送的导频。 通过在不相交的子带集合上发送导频来实现频率正交性。 通过使用多个不同的正交码（例如沃尔什码）发送导频来实现时间正交性。 导频还可以用多个不同的扰码进行加扰，这些扰码用于随机化导频干扰并且能够识别这些飞行员的发射机。
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