专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2012024588A8 DETERMINATION OF NETWORK SYNCHRONIZATION 审中-公开
公开(公告)号：WO2012024588A8
公开(公告)日：2012-02-23
申请号：PCT/US2011/048423
申请日：2011-08-19
申请人： QUALCOMM INCORPORATED , BHATTAD, Kapil , LUO, Tao , YOO, Taesang , ZHANG, Xiaoxia , LUO, Xiliang , LIU, Ke , MALLADI, Durga, Prasad
发明人： BHATTAD, Kapil , LUO, Tao , YOO, Taesang , ZHANG, Xiaoxia , LUO, Xiliang , LIU, Ke , MALLADI, Durga, Prasad
IPC分类号： H04W88/06
摘要： User equipment (UE) associated with synchronous networks operate in a synchronous mode while UEs associated with asynchronous networks operate in an asynchronous mode. When operating in a synchronous mode, a UE can significantly improve performance of synchronization signal detection, data decoding, and tracking loop management by using the interference cancellation (IC) techniques that are not available in an asynchronous mode of operation. Obtaining synchronization indicators and determining the synchronization status of the current network by UE is disclosed. The determination may be based on the synchronization indicator, whether detected through signal detection, signal measurements, signal analysis, or the like.

2. 发明申请

WO2012024587A1 SAMPLE SELECTION AND INTERCELL INTERFERENCE CANCELLATION FOR SECONDARY SYNCHRONIZATION SIGNAL (SSS) DETECTION 审中-公开
标题翻译：用于二次同步信号（SSS）检测的样本选择和间歇干扰消除
公开(公告)号：WO2012024587A1
公开(公告)日：2012-02-23
申请号：PCT/US2011/048421
申请日：2011-08-19
申请人： QUALCOMM, INCORPORATED , LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia , YOO, Taesang , LUO, Xiliang , LIU, Ke
发明人： LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia , YOO, Taesang , LUO, Xiliang , LIU, Ke
IPC分类号： H04J11/00
CPC分类号： H04W56/001 , H04J11/005 , H04J11/0069 , H04J11/0093 , H04W24/02 , H04W72/042
摘要： Methods and apparatus for selecting samples for secondary synchronization signal (SSS) detection are described. Several alternatives are provided for efficient cell identifier detection. In a first alternative, multiple bursts of a signal received from a cell are sampled with non-uniform spacing between sampling intervals to determine a sequence for cell identification. In a second alternative, samples of a first and a second signal received from a stronger cell are cancelled, and a sequence for detecting a weaker cell is determined by reducing effects of the samples of a third signal received from the weaker cell which do not overlap with the primary synchronization signal (PSS) or SSS of the stronger cell. In a third alternative, a sequence for detecting a weaker cell is determined by reducing effects of any sampled bursts that correspond to a high transmission power portion of a signal from a stronger cell.
摘要翻译：描述了用于选择二次同步信号（SSS）检测的样本的方法和装置。提供了多种替代方案用于高效的小区标识符检测。在第一替代方案中，从采样间隔之间以不均匀的间隔对从小区接收的信号的多个突发进行采样，以确定用于小区识别的序列。在第二替代方案中，从较强小区接收到的第一和第二信号的样本被取消，并且用于检测较弱小区的序列是通过减少从不重叠的较弱小区接收的第三信号的样本的影响来确定的具有较强小区的主同步信号（PSS）或SSS。在第三替代方案中，用于检测较弱小区的序列通过减少对应于来自较强小区的信号的高发射功率部分的任何采样突发的影响来确定。

3. 发明申请

WO2011140511A1 DETECTING AND REPORTING PHYSICAL-LAYER CELL IDENTIFIER COLLISIONS IN WIRELESS NETWORKS 审中-公开
标题翻译：在无线网络中检测和报告物理层细胞识别器碰撞
公开(公告)号：WO2011140511A1
公开(公告)日：2011-11-10
申请号：PCT/US2011/035634
申请日：2011-05-06
申请人： QUALCOMM INCORPORATED , ZHANG, Xiaoxia , LIU, Ke , BHATTAD, Kapil , YOO, Taesang , LUO, Tao
发明人： ZHANG, Xiaoxia , LIU, Ke , BHATTAD, Kapil , YOO, Taesang , LUO, Tao
IPC分类号： H04W24/02 , H04W48/08
CPC分类号： H04W24/02 , H04W16/14 , H04W48/08
摘要： Physical-Layer Cell Identifier (PCID) collisions may occur in a wireless network when two neighboring evolved Node Bs (eNBs) having different Global Cell Identifiers (GCID) select identical PCIDs. Evolved Node Bs may uniquely identify themselves by transmitting on a broadcast channel, such as a Physical Broadcast Channel (PBCH), a pattern of bits corresponding to the eNB's GCID. Individual User Equipments (UEs) may recognize the PCID collision by decoding the PBCH payload to identify different GCID-modulated payloads from two eNBs involved in the PCID collision. Alternatively, UEs may detect PCID collisions in the wireless network by monitoring Primary Synchronization Signals (PSS) and Secondary Synchronization Signals (SSS) on the PBCH for identical signals separated by a relatively large time offset. After detecting a PCID collision, the UEs may attempt by best effort to report the PCID collision, may report to a fallback eNB, or the UEs may use special resources on an uplink channel.
摘要翻译：当具有不同的全局小区标识符（GCID）的两个相邻演进节点B（eNB）选择相同的PCID时，物理层小区标识符（PCID）冲突可能发生在无线网络中。演进节点B可以通过在诸如物理广播信道（PBCH）的广播信道上发送与eNB的GCID相对应的比特模式来唯一地标识自身。个体用户设备（UE）可以通过解码PBCH有效载荷来识别来自涉及PCID冲突的两个eNB的不同GCID调制的有效载荷来识别PCID冲突。或者，UE可以通过监视PBCH上的主同步信号（PSS）和次同步信号（SSS）来检测无线网络中的PCID冲突，以用相对大的时间偏移分开的相同信号。在检测到PCID冲突之后，UE可以尽最大努力报告PCID冲突，可以向后退eNB报告，或者UE可以在上行链路信道上使用特殊资源。

4. 发明申请

WO2011150382A1 APPARATUS AND METHOD FOR PHYSICAL BROADCAST CHANNEL (PBCH) DECODING FOR MULTIPLE CELLS 审中-公开
标题翻译：用于多个细胞的物理广播通道（PBCH）解码的装置和方法
公开(公告)号：WO2011150382A1
公开(公告)日：2011-12-01
申请号：PCT/US2011/038424
申请日：2011-05-27
申请人： QUALCOMM Incorporated , LUO, Tao , LIU, Ke , BHATTAD, Kapil , YOO, Taesang , ZHANG, Xiaoxia
发明人： LUO, Tao , LIU, Ke , BHATTAD, Kapil , YOO, Taesang , ZHANG, Xiaoxia
IPC分类号： H04J11/00 , H04B1/7107
CPC分类号： H04J11/0056 , H04B1/7107
摘要： A method of wireless communication includes generating a list of cells for physical broadcast channel (PBCH) decoding ( 610 ). The method also includes allocating memory for decoding and cancelling a subset of cells from the generated cell list ( 612 ). The method further includes storing information related to subsets of cells from the generated list in the allocated memory ( 614 ) during different time periods. The allocated memory is sufficient for attempting, at each time period, decoding of each subset of cells and cancelling of decoded cells in each subset. The method further includes cycling through the generated cell list by processing each subset of the cell list ( 616 ) during the different time periods.
摘要翻译：一种无线通信方法包括：生成用于物理广播信道（PBCH）解码的小区列表（610）。该方法还包括分配用于从所生成的小区列表解码和消除小区子集的存储器（612）。该方法还包括在不同时间段期间将与生成的列表中的小区子集有关的信息存储在所分配的存储器（614）中。分配的存储器足以在每个时间段尝试对每个子集的每个子集进行解码并且消除每个子集中的解码单元。该方法还包括通过在不同时间段期间处理小区列表（616）的每个子集来循环通过生成的小区列表。

5. 发明申请

WO2011139759A2 MODIFIED SPATIAL DIVERSITY SCHEMES FOR COVERAGE ENHANCEMENT 审中-公开
标题翻译：改进的覆盖增强空间多样性方案
公开(公告)号：WO2011139759A2
公开(公告)日：2011-11-10
申请号：PCT/US2011/034123
申请日：2011-04-27
申请人： QUALCOMM Incorporated , LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia , YOO, Taesang , LIU, Ke
发明人： LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia , YOO, Taesang , LIU, Ke
IPC分类号： H04B7/06
CPC分类号： H04J11/0053 , H04B7/0473 , H04J11/0033
摘要： In one aspect, a method to enhance coverage in a heterogeneous wireless network wireless communication is disclosed. The method includes generating a reference signal indicating a plurality of transmit antenna ports and generating modulation symbols. Modulation symbols are assigned to each of the plurality of transmit antenna ports, in accordance with a spatial diversity coding scheme for the plurality of transmit antenna ports. At least one of the modulation symbols assigned to at least one of the plurality of transmit antenna ports is muted prior to transmission in accordance with the spatial diversity coding scheme. The non-muted modulation symbols and the reference signal are transmitted on the other of the plurality of transmit antenna ports.
摘要翻译：一方面，公开了一种增强异构无线网络无线通信中的覆盖范围的方法。该方法包括生成指示多个发射天线端口的参考信号并生成调制符号。根据用于多个发射天线端口的空间分集编码方案，调制符号被分配给多个发射天线端口中的每一个。根据空间分集编码方案，分配给多个发送天线端口中的至少一个的调制符号中的至少一个在发送之前被静音。未衰减的调制符号和参考信号在多个发射天线端口中的另一个上发射。

6. 发明申请

WO2011014583A2 ADAPTIVE TRANSMISSIONS IN COORDINATED MULTIPLE POINT COMMUNICATIONS 审中-公开
标题翻译：协调多点通信中的自适应传输
公开(公告)号：WO2011014583A2
公开(公告)日：2011-02-03
申请号：PCT/US2010/043594
申请日：2010-07-28
申请人： QUALCOMM INCORPORATED , LUO, Tao , MALLADI, Durga Prasad , ZHANG, Xiaoxia , WEI, Yongbin , MONTOJO, Juan , LIU, Ke
发明人： LUO, Tao , MALLADI, Durga Prasad , ZHANG, Xiaoxia , WEI, Yongbin , MONTOJO, Juan , LIU, Ke
IPC分类号： H04L25/02
CPC分类号： H04L25/0224 , H04B7/024 , H04B7/0417
摘要： Systems and methodologies are described that facilitate adaptively communicating data to wireless devices. An access point can precode a dedicated reference signal (DRS) for transmitting to a wireless device, and the wireless device can receive the precoded DRS. The wireless device can determine the precoder by estimating a channel of the DRS and can provide channel condition feedback to the access point. The access point can create data signals including a single or a burst of data transmissions according to the feedback and can precode the data signals using the same precoder. The wireless device can additionally decode the data signals using the precoder. Moreover, the access point can cycle through precoders according to a patterned, random, pseudo-random, and/or similar sequence.
摘要翻译：描述了有助于自适应地向无线设备传送数据的系统和方法。接入点可以对专用参考信号（DRS）进行预编码以发送给无线设备，并且无线设备可以接收预编码的DRS。无线设备可以通过估计DRS的信道来确定预编码器，并且可以向接入点提供信道条件反馈。接入点可以根据反馈创建包括单个数据传输或突发数据传输的数据信号，并且可以使用相同的预编码器对数据信号进行预编码。无线设备可以使用预编码器附加地解码数据信号。而且，接入点可以根据图案化，随机，伪随机和/或相似的顺序在预编码器中循环。

7. 发明申请

WO2011014840A1 EFFICIENT CONTROL CHANNEL DECODING IN COMP COMMUNICATIONS 审中-公开
标题翻译：有效的控制信道解码在通信中
公开(公告)号：WO2011014840A1
公开(公告)日：2011-02-03
申请号：PCT/US2010/044023
申请日：2010-07-30
申请人： QUALCOMM Incorporated , LUO, Tao , MALLADI, Durga Prasad , ZHANG, Xiaoxia , WEI, Yongbin , MONTOJO, Juan , LIU, Ke
发明人： LUO, Tao , MALLADI, Durga Prasad , ZHANG, Xiaoxia , WEI, Yongbin , MONTOJO, Juan , LIU, Ke
IPC分类号： H04L1/18 , H04L5/00 , H04W36/00
CPC分类号： H04L5/0007 , H04L1/1854 , H04L1/1861 , H04L5/0032 , H04L5/0035 , H04L5/0053 , H04L5/0055 , H04L5/006 , H04L5/0062 , H04L5/0073 , H04W72/082
摘要： Certain embodiments of the present disclosure propose two efficient designs for a control channel in a Coordinated Multi-Point (CoMP) system. The proposed designs enable a user equipment (UE) to transmit acknowledgement (ACK) and negative acknowledgement (NACK) signals to one or more access points (APs) upon receiving transmissions from them.
摘要翻译：本公开的某些实施例提出了用于协调多点（CoMP）系统中的控制信道的两种有效设计。所提出的设计使得用户设备（UE）在接收到来自它们的传输时能够向一个或多个接入点（AP）发送确认（ACK）和否定确认（NACK）信号。

8. 发明申请

WO2011014834A3 ROBUST DECODING OF CoMP TRANSMISSIONS 审中-公开
公开(公告)号：WO2011014834A3
公开(公告)日：2011-02-03
申请号：PCT/US2010/044014
申请日：2010-07-30
申请人： QUALCOMM INCORPORATED , LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , LIU, Ke , ZHANG, Xiaoxia , WEI, Yongbin
发明人： LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , LIU, Ke , ZHANG, Xiaoxia , WEI, Yongbin
IPC分类号： H04B7/02 , H04B7/04
摘要： Techniques for transmitting data and resource signals (RS) are provided. According to certain aspects, an access point may determine RS resource locations related to one or more access points in a CoMP set transmitting a common reference signal (CRS), map data transmissions initially over resources other than those related to the RS resource locations, and map remaining data transmissions over resources related to the RS resource locations. According to certain aspects, a wireless device may receive a signal from access points in a coordinated multiple point (CoMP) communication set comprising a common reference signal (CRS) superimposed over data, determine CRS locations in the signal that correspond to the CRS, and decode data from the signal based at least in part on the determined CRS locations.

9. 发明申请

WO2011014829A3 DETERMINING CONTROL REGION PARAMETERS FOR MULTIPLE TRANSMISSION POINTS 审中-公开
公开(公告)号：WO2011014829A3
公开(公告)日：2011-02-03
申请号：PCT/US2010/044008
申请日：2010-07-30
申请人： QUALCOMM INCORPORATED , LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , WEI, Yongbin , ZHANG, Xiaoxia , LIU, Ke
发明人： LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , WEI, Yongbin , ZHANG, Xiaoxia , LIU, Ke
IPC分类号： H04L5/00 , H04L27/26
摘要： Systems and methodologies are described that facilitate determining control region parameters related to a plurality of carriers and/or coordinated multiple point (CoMP) access points. Wireless devices can receive control region parameters related to the carriers or CoMP access points from a serving access point over control channel resources. Additionally or alternatively, wireless devices can assume all carriers or CoMP access points have substantially the same control region as indicated in a control format indicator channel from the serving access point or based on a configured value.

10. 发明申请

WO2012088444A1 INTERFERENCE RANDOMIZATION FOR UPLINK SIGNALING 审中-公开
标题翻译：用于上传信号的干扰随机
公开(公告)号：WO2012088444A1
公开(公告)日：2012-06-28
申请号：PCT/US2011/066906
申请日：2011-12-22
申请人： QUALCOMM INCORPORATED , LUO, Xiliang , GAAL, Peter , CHEN, Wanshi , XU, Hao , LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia
发明人： LUO, Xiliang , GAAL, Peter , CHEN, Wanshi , XU, Hao , LUO, Tao , BHATTAD, Kapil , ZHANG, Xiaoxia
IPC分类号： H04L5/00 , H04W72/08
CPC分类号： H04L5/0062 , H04L1/1692
摘要： A method for transmitting an acknowledgement/negative acknowledgement is described. Cell-specific symbol-level cyclic shift hopping is applied to data single-carrier frequency division multiplexing symbols of the acknowledgement/negative acknowledgement. A discrete Fourier transform is applied to the data single-carrier frequency division multiplexing symbols. Cell-specific symbol-level phase hopping is applied to the data single-carrier frequency division multiplexing symbols. The data single-carrier frequency division multiplexing symbols are transmitted in a slot.
摘要翻译：描述用于发送确认/否定确认的方法。小区特定符号级循环移位跳频被应用于确认/否定确认的数据单载波频分复用符号。离散傅立叶变换被应用于数据单载波频分复用符号。小区特定符号级相位跳变被应用于数据单载波频分复用符号。数据单载波频分复用符号在时隙中发送。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式