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

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。

2. 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。

3. 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.

4. 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.

5. 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.

6. 发明申请

WO2011127007A1 EFFICIENT ZADOFF-CHU SEQUENCE GENERATION 审中-公开
标题翻译：有效的ZADOFF-CHU序列生成
公开(公告)号：WO2011127007A1
公开(公告)日：2011-10-13
申请号：PCT/US2011/031166
申请日：2011-04-05
申请人： QUALCOMM Incorporated , GAAL, Peter , FUCHS, Robert J. , WEI, Yongbin , LIU, Ke , PAN, Hanfang , MALLADI, Durga Prasad , MACEK, Daniel T.
发明人： GAAL, Peter , FUCHS, Robert J. , WEI, Yongbin , LIU, Ke , PAN, Hanfang , MALLADI, Durga Prasad , MACEK, Daniel T.
IPC分类号： H04J13/00 , H04J13/14
CPC分类号： H04J13/0059 , H04J13/14
摘要： Efficient apparatus and method for Zadoff-Chu ("Chu") sequence generation avoids additional processing and hardware complexity of conventional quadratic generating formula followed by Discrete Fourier Transform (DFT) with a reference signal generator that produces both a Zadoff-Chu sequence and its DFT. In the wireless communication system (e.g., Long Term Evolution (LTE) system), Chu sequences are extensively used, especially in the uplink (UL). Because of the single carrier operating mode, transmitting a Chu sequence in principle involves a succession of generating that sequence, performing a DFT operation and then an IFFT operation. Assuming that the sequence length is N, the initial sequence generation requires 2N multiplications and the DFT requires more than Nlog2(N) multiplications. Given the frequent processing of Chu sequences, this would represent a complexity burden. The invention makes it possible to perform the sequence generation and DFT steps without any multiplication operation, except for possibly calculating certain initial parameters.
摘要翻译：用于Zadoff-Chu（“Chu”）序列生成的高效装置和方法避免了传统二次生成公式的附加处理和硬件复杂性，随后是具有产生Zadoff-Chu序列及其DFT的参考信号发生器的离散傅里叶变换（DFT）。在无线通信系统（例如，长期演进（Long Term Evolution，LTE）系统）中，尤其在上行链路（UL）中广泛使用了Chu序列。由于单载波操作模式，原则上发送Chu序列涉及一系列生成该序列，执行DFT操作，然后进行IFFT操作。假设序列长度为N，则初始序列生成需要2N次乘法，并且DFT需要多于Nlog2（N）个乘法。鉴于Chu序列的频繁处理，这将代表一个复杂的负担。除了可能计算某些初始参数之外，本发明使得可以执行没有任何乘法运算的序列生成和DFT步骤。

7. 发明申请

WO2011017468A2 MITIGATION OF CRS MISALIGNMENT IN COORDINATED MULTIPOINT COMMUNICATIONS 审中-公开
标题翻译：协调多点通信中CRS缺失的缓解
公开(公告)号：WO2011017468A2
公开(公告)日：2011-02-10
申请号：PCT/US2010/044467
申请日：2010-08-04
申请人： QUALCOMM INCORPORATED , LIU, Ke , ZHANG, Xiaoxia , MALLADI, Durga Prasad , XU, Hao
发明人： LIU, Ke , ZHANG, Xiaoxia , MALLADI, Durga Prasad , XU, Hao
IPC分类号： H04L5/00
CPC分类号： H04L5/0032 , H04L5/005 , H04L5/0091
摘要： Certain aspects of the present disclosure relate to a method for coordinated multi point wireless communications. A technique for joint processing of misaligned reference signals in coordinated multipoint communications is provided. In one aspect, a cell may transmit an offsetting reference signal which, when processed by a receiving user equipment, at least partially cancels a first reference signal transmitted by the cell.
摘要翻译：本公开的某些方面涉及用于协调多点无线通信的方法。提供了一种在协调多点通信中联合处理未对准参考信号的技术。在一个方面，小区可以发送偏移参考信号，该偏移参考信号在被接收用户设备处理时至少部分地消除由小区发送的第一参考信号。

8. 发明申请

WO2011032107A1 COMBINING DECISION METRICS FOR DECODING BASED ON PAYLOAD DIFFERENCE 审中-公开
标题翻译：基于载荷差异的组合决策度量解码
公开(公告)号：WO2011032107A1
公开(公告)日：2011-03-17
申请号：PCT/US2010/048673
申请日：2010-09-13
申请人： QUALCOMM INCORPORATED , LIU, Ke , SEONG, Kibeom , LUO, Tao , WEI, Yongbin
发明人： LIU, Ke , SEONG, Kibeom , LUO, Tao , WEI, Yongbin
IPC分类号： H04L1/00 , H04L1/08
CPC分类号： H04L1/0045 , H04L1/08
摘要： Decision metrics used to decode wireless communication payloads are combined for successive frames to improve decoding of the later received frames. A bitwise payload difference between successive frames is encoded in the same manner the payloads are encoded. Decision metrics determined for the earlier received frame are combined with the encoded payload difference to generate adjusted decision metrics. The adjusted decision metrics are combined with decision metrics determined for the later received frame. The combined decision metrics are decoded to generate a payload for the later received frame. If the decoding is not successful the combined decision metrics are carried forward and the process is repeated based on the payload difference between the following frames.
摘要翻译：用于解码无线通信有效载荷的决策度量被组合用于连续的帧，以改进后续接收的帧的解码。连续帧之间的按位有效负载差异以有效载荷编码的相同方式进行编码。将针对较早接收到的帧确定的决策度量与经编码的有效载荷差值相组合以产生经调整的决策度量。经调整的决策度量与为稍后接收的帧确定的决策度量相结合。对组合决策度量进行解码，以生成稍后接收的帧的有效载荷。如果解码不成功，则组合决策度量被转发，并且基于以下帧之间的有效负载差重复该过程。

9. 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。

10. 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。

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