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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

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。

3. 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。

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

WO2011063291A2 PER-CELL TIMING AND/OR FREQUENCY ACQUISITION AND THEIR USE ON CHANNEL ESTIMATION IN WIRELESS NETWORKS 审中-公开
标题翻译：单元时间和/或频率采集及其在无线网络中的信道估计中的应用
公开(公告)号：WO2011063291A2
公开(公告)日：2011-05-26
申请号：PCT/US2010/057513
申请日：2010-11-19
申请人： QUALCOMM INCORPORATED , YOO, Taesang , LUO, Tao , ZHANG, Xiaoxia , LIU, Ke
发明人： YOO, Taesang , LUO, Tao , ZHANG, Xiaoxia , LIU, Ke
IPC分类号： H04W56/00
CPC分类号： H04W24/00 , H04W56/00 , H04W56/0015 , H04W56/0035
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which a system timing is estimated, derived from timing of one or more cells, a timing offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the timing offsets. In addition, a method, an apparatus, and a computer program product for wireless communication are provided in which a carrier frequency is estimated, derived from a frequency of one or more cells, a frequency offset is determined for a plurality of cells relative to the estimated system timing, and signals received form the plurality of cells are processed using the frequency offsets.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的定时导出系统定时，相对于估计的系统定时为多个单元确定定时偏移，并且使用定时偏移来处理从多个单元接收的信号。此外，提供了一种用于无线通信的方法，装置和计算机程序产品，其中从一个或多个单元的频率导出载波频率，对于多个单元相对于该单元确定频率偏移使用频率偏移来处理估计的系统定时和从多个小区接收的信号。

7. 发明申请

WO2011047348A1 METHODS AND APPARATUS FOR CROSS-CELL COORDINATION AND SIGNALING 审中-公开
标题翻译：用于跨小区协调和信令的方法和装置
公开(公告)号：WO2011047348A1
公开(公告)日：2011-04-21
申请号：PCT/US2010/052957
申请日：2010-10-15
申请人： QUALCOMM Incorporated , LUO, Tao , ZHANG, Xiaoxia , SEONG, Kibeom , LIU, Ke , YOO, Taesang
发明人： LUO, Tao , ZHANG, Xiaoxia , SEONG, Kibeom , LIU, Ke , YOO, Taesang
IPC分类号： H04W48/12
CPC分类号： H04W48/12 , H04W16/14 , H04W72/0406 , H04W72/0426 , H04W72/082 , H04W72/1289 , H04W84/045
摘要： Methods and apparatus for providing cross-cell signaling and/or coordination for interference mitigation in wireless communication networks are described. In one aspect, a UE associated with a serving eNB may receive control signaling from another non-serving eNB in a different cell. The control signaling may be consistent with a characteristic of the serving eNB and associated cell. In another aspect, multiple eNBs may coordinate transmission of DL resources to minimize collisions of control signaling resources.
摘要翻译：描述了用于在无线通信网络中提供用于干扰减轻的跨小区信令和/或协调的方法和装置。在一个方面，与服务eNB相关联的UE可以从不同小区中的另一非服务eNB接收控制信令。控制信令可以与服务eNB和相关联的小区的特性一致。在另一方面，多个eNB可以协调DL资源的传输以最小化控制信令资源的冲突。

8. 发明申请

WO2012141935A1 METHODS AND APPARATUS FOR SELECTING REFERENCE SIGNAL TONES FOR DECODING A CHANNEL 审中-公开
标题翻译：用于选择用于解码通道的参考信号音的方法和装置
公开(公告)号：WO2012141935A1
公开(公告)日：2012-10-18
申请号：PCT/US2012/031904
申请日：2012-04-02
申请人： QUALCOMM INCORPORATED , BHATTAD, Kapil , LIU, Ke , LUO, Tao , WEI, Yongbin
发明人： BHATTAD, Kapil , LIU, Ke , LUO, Tao , WEI, Yongbin
IPC分类号： H04L25/02 , H04W72/08
CPC分类号： H04W24/02 , H03G1/02 , H04L5/0053 , H04L25/0202 , H04L27/2601 , H04W84/045
摘要： Methods and apparatuses are provided that include selecting reference signal (RS) or other tones to utilize in estimating a channel for decoding one or more channels. Where the RS tones are interfered by other base stations, interference cancelation can be performed over the RS tones. Since interference can vary over the tones, interference cancelation can yield RS tones of varying quality. Thus, a quality of each of the RS tones can be determined, and at least a subset of the RS tones can be selected for estimating a channel. Additionally or alternatively, the RS tones can be weighted or otherwise classified for performing channel estimation using the RS tones.
摘要翻译：提供了包括选择参考信号（RS）或其他音调以用于估计用于解码一个或多个信道的信道的方法和装置。在RS音调被其他基站干扰的情况下，可以通过RS音调进行干扰消除。由于干扰可以在音调上变化，所以干扰消除可以产生质量不同的RS音调。因此，可以确定每个RS音调的质量，并且可以选择RS音调的至少一个子集来估计频道。附加地或替代地，可以对RS音调进行加权或分类，以使用RS音调进行信道估计。

9. 发明申请

WO2011014730A2 NETWORK-ASSISTED CELL ACCESS 审中-公开
标题翻译：网络协助小区访问
公开(公告)号：WO2011014730A2
公开(公告)日：2011-02-03
申请号：PCT/US2010/043837
申请日：2010-07-30
申请人： QUALCOMM Incorporated , LIU, Ke , ZHANG, Xiaoxia , YOO, Taesang
发明人： LIU, Ke , ZHANG, Xiaoxia , YOO, Taesang
IPC分类号： H04W48/20
CPC分类号： H04W4/08 , H04W74/008 , H04W74/0833 , H04W84/045 , Y02D70/1262 , Y02D70/142 , Y02D70/146
摘要： Providing for access point assisted signal acquisition for heterogeneous access point wireless networks is described herein. By way of example, a closed subscriber group (CSG) base station, such as a home NodeB (HNB) can be configured to provide temporary, limited access to a UE that is not authorized to access the HNB. Upon receiving and rejecting an access probe, the HNB can negotiate with a surrounding macro network to provide service for the UE. Further, the HNB can forward signal acquisition data, to assist in proper decoding of pilot or synchronization signals of the macro network. In particular aspects, the HNB can reduce power or blank transmissions on reserved access resources to reduce interference for the UE. By these and other disclosed mechanisms, the HNB can assist a non-CSG subscriber to obtain network service, and mitigate interference effects due to proximity to the UE.
摘要翻译：本文描述了为异构接入点无线网络提供接入点辅助信号采集。作为示例，诸如家庭NodeB（HNB）的封闭用户组（CSG）基站可以被配置为向未被授权接入HNB的UE提供临时的受限访问。在接收和拒绝接入探测器时，HNB可以与周围的宏网络进行协商，为UE提供业务。此外，HNB可以转发信号采集数据，以帮助宏网络的导频或同步信号的正确解码。在特定方面，HNB可以在保留的接入资源上减少功率或空白传输，以减少对UE的干扰。通过这些和其他公开的机制，HNB可以帮助非CSG用户获得网络服务，并且减轻由于靠近UE而产生的干扰效应。

10. 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。

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