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

WO2009046009A2 PARTIAL DISCARDING OF CYCLIC PREFIX FOR EFFICIENT TDD OR HALF-DUPLEX FDD OPERATION 审中-公开
标题翻译：有效的TDD或半双工FDD操作的循环前缀的部分抛弃
公开(公告)号：WO2009046009A2
公开(公告)日：2009-04-09
申请号：PCT/US2008/078276
申请日：2008-09-30
申请人： QUALCOMM Incorporated , MONTOJO, Juan , MALLADI, Durga Prasad , PATEL, Shimman
发明人： MONTOJO, Juan , MALLADI, Durga Prasad , PATEL, Shimman
IPC分类号： H04L27/26
CPC分类号： H04L27/2647 , H04L5/1484 , H04L27/2607
摘要： Techniques for performing partial cyclic prefix discarding are described. A user equipment (UE) may reduce the amount of cyclic prefix to discard for the last OFDM symbol prior to a switch from data reception to data transmission. This may allow the UE to complete data reception earlier and to switch to data transmission in a timely manner. In one design, the UE may receive a first OFDM symbol and discard a first amount of cyclic prefix for the first OFDM symbol. The UE may then receive a second OFDM symbol and discard a second amount of cyclic prefix for the second OFDM symbol. The second amount of cyclic prefix to discard may be determined based on the amount of time needed to switch from data reception to data transmission, which may be dependent on the amount of time advance between transmit timing and receive timing at the UE.
摘要翻译：描述用于执行部分循环前缀丢弃的技术。在从数据接收切换到数据传输之前，用户设备（UE）可以减少循环前缀的数量以丢弃最后的OFDM符号。这可以允许UE更早地完成数据接收并及时切换到数据传输。在一种设计中，UE可以接收第一OFDM符号并且丢弃用于第一OFDM符号的第一数量的循环前缀。然后，UE可以接收第二OFDM符号并且丢弃用于第二OFDM符号的第二数量的循环前缀。可以基于从数据接收切换到数据传输所需的时间量来确定丢弃的第二量的循环前缀，其可以取决于在UE处的发送定时和接收定时之间的时间推进量。

2. 发明申请

WO2009023860A1 APPARATUS AND METHOD OF DETERMINING A PRECODING MATRIX IN A MULTI- INPUT MULTI-OUTPUT (MIMO) SYSTEM 审中-公开
标题翻译：在多输入多输出（MIMO）系统中确定预编码矩阵的装置和方法
公开(公告)号：WO2009023860A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/073386
申请日：2008-08-15
申请人： QUALCOMM Incorporated , SARKAR, Sandip , KIM, Byoung-Hoon , MALLADI, Durga Prasad , MONTOJO, Juan
发明人： SARKAR, Sandip , KIM, Byoung-Hoon , MALLADI, Durga Prasad , MONTOJO, Juan
IPC分类号： H04B7/04
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译：描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。

3. 发明申请

WO2008057898A2 METHOD AND APPARATUS FOR CELL SEARCH IN AN ORTHOGONAL WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在正交无线通信系统中用于小区搜索的方法和设备
公开(公告)号：WO2008057898A2
公开(公告)日：2008-05-15
申请号：PCT/US2007/083265
申请日：2007-10-31
申请人： QUALCOMM Incorporated , MONTOJO, Juan , KIM, Byoung-hoon , MALLADI, Durga Prasad , LUO, Tao
发明人： MONTOJO, Juan , KIM, Byoung-hoon , MALLADI, Durga Prasad , LUO, Tao
IPC分类号： H04L27/26 , H04B1/707
CPC分类号： H04W48/16 , H04B2201/70701 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04W48/08 , Y02D70/00 , Y02D70/1222 , Y02D70/1262 , Y02D70/25
摘要： Systems and methodologies are described that provide techniques for efficient cell search in a wireless communication system. In one aspect, a frequency reuse pattern can be generated by applying frequency shifts to reference signals transmitted from cells that provide coverage for a NodeB based on cell IDs or cell group IDs for the cells. The frequency shifts applied to reference signals can then be utilized as a basis for multiplexing reference signals from different cells using frequency division multiplexing (FDM) or a combination of FDM and other multiplexing techniques. Other adjustments to reference signals transmitted from respective cells, such as transmit power adjustments, can further be made to improve detection performance.
摘要翻译：描述了在无线通信系统中提供用于高效小区搜索的技术的系统和方法。在一个方面，频率再用模式可以通过将频率偏移应用于基于小区ID或小区组ID的小区发送的参考信号来提供对于节点B的覆盖。然后可以利用施加到参考信号的频移作为使用频分复用（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。还可以对从各个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。

4. 发明申请

WO2008042967A3 RANDOM ACCESS SIGNALING TRANSMISSION FOR SYSTEM ACCESS IN WIRELESS COMMUNICATION 审中-公开
公开(公告)号：WO2008042967A3
公开(公告)日：2008-04-10
申请号：PCT/US2007/080319
申请日：2007-10-03
申请人： QUALCOMM Incorporated , DAMNJANOVIC, Aleksandar , MONTOJO, Juan , MALLADI, Durga Prasad
发明人： DAMNJANOVIC, Aleksandar , MONTOJO, Juan , MALLADI, Durga Prasad
IPC分类号： H04W4/00
摘要： Techniques for transmitting random access signaling for system access are described. In an aspect, random access signaling may be sent based on at least one transmission parameter having different values for different user equipment (UE) classes. At least one parameter value may be determined based on a particular UE class, and the random access signaling may be sent based on the determined parameter value(s). The random access signaling may be a random access preamble, and the at least one transmission parameter may include a target SNR, a backoff time, and/or a power ramp. The random access preamble may then be sent based on a target SNR value, a power ramp value, and/or a backoff time value for the particular UE class. In another aspect, a message for system access may be sent based on a power control correction received in a random access response for the random access preamble.

5. 发明申请

WO2008033985A2 BEACON ASSISTED CELL SEARCH IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中的信号辅助小区搜索
公开(公告)号：WO2008033985A2
公开(公告)日：2008-03-20
申请号：PCT/US2007/078369
申请日：2007-09-13
申请人： QUALCOMM INCORPORATED , 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： 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。在一种设计中，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，UE可以在加电时用于初始小区搜索。基站还可以生成和发送一个或多个信标信号，其可以由UE用于相邻小区搜索以检测相邻小区。可以基于系统带宽来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的集合。每个信标信号可以被映射到每个信标符号周期中的子载波集合中的一个子载波。可以基于信标跳变模式或信标代码来确定该一个子载波，并且可以依赖于小区标识符（ID）。

6. 发明申请

WO2013022993A1 SUPPORTING OPERATION ON DEPENDENT CARRIERS IN A MULTI - CARRIER SYSTEM 审中-公开
标题翻译：支持多载波系统中的相关载波的运行
公开(公告)号：WO2013022993A1
公开(公告)日：2013-02-14
申请号：PCT/US2012/050026
申请日：2012-08-08
申请人： QUALCOMM INCORPORATED , DAMNJANOVIC, Jelena M. , GAAL, Peter , WEI, Yongbin , MONTOJO, Juan , MALLADI, Durga Prasad , FLORE, Oronzo
发明人： DAMNJANOVIC, Jelena M. , GAAL, Peter , WEI, Yongbin , MONTOJO, Juan , MALLADI, Durga Prasad , FLORE, Oronzo
IPC分类号： H04W72/12
CPC分类号： H04W72/1289 , H04W72/14 , H04W84/04
摘要： Supporting communication on multiple carriers. A user equipment (UE) is configured with a base (anchor, regular, stand-alone) carrier and a dependent (extension) carrier linked (paired) to the base carrier. Data transmission on the dependent carrier is scheduled via a scheduling carrier, which is different from the dependent carrier. The UE receives (714) a scheduling grant on the scheduling carrier and determines whether the scheduling grant is for the base carrier and/ or the dependent carrier. The UE communicates (718), e.g. sends or receives data, on the base carrier and/or the dependent carrier based on the scheduling grant. The scheduling grant may be (i) a separate grant carrying scheduling information for only one carrier, (ii) a common grant carrying scheduling information for both carriers, (iii) a joint grant carrying separate scheduling information for each carrier, or (iv) a composite grant that may be a separate grant, a common grant, or a joint grant. A configuration of the base (anchor) carrier and a dependent (extension) carrier is received from the eNodeB at the UE.
摘要翻译：支持多个运营商的通信。用户设备（UE）配置有与基站（基站，固定，独立）载波和从属（扩展）载体链接（配对）到基站的载体。通过与从属载波不同的调度载波来调度依赖载波上的数据传输。 UE在调度载波上接收（714）调度许可，并确定调度授权是否用于基本载波和/或依赖载波。 UE通信（718），例如。基于调度授权在基础载波和/或从属载波上发送或接收数据。调度授权可以是（i）承载仅一个载波的调度信息的单独授权，（ii）承载两个载波的调度信息的公共授权，（iii）携带每个载波的分散调度信息的联合授权，或者（iv）复合补助金可以是单独的补助金，共同补助金或联合补助金。从UE处的eNodeB接收基本（主机）载波和从属（分机）载波的配置。

7. 发明申请

WO2010129605A1 DATA AND CONTROL MULTIPLEXING IN WIRELESS COMMUNICATIONS 审中-公开
标题翻译：数据和控制在无线通信中的多路复用
公开(公告)号：WO2010129605A1
公开(公告)日：2010-11-11
申请号：PCT/US2010/033619
申请日：2010-05-04
申请人： QUALCOMM INCORPORATED , MALLADI, Durga Prasad , MONTOJO, Juan , DAMNJANOVIC, Jelena M.
发明人： MALLADI, Durga Prasad , MONTOJO, Juan , DAMNJANOVIC, Jelena M.
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04B1/713
摘要： Systems and methodologies are described that facilitate defining a new control region over resources allocated for communicating general non-control data in a legacy network specification. The new control region can comprise multiple control channels, which can be multiplexed together and/or with general data channels. Devices can receive control data over the new control region as well as information regarding the region, such as location of the region, location of specific resources, multiplexing schemes, frequency hopping patterns, and/or the like to appropriately decode relevant control data. This allows for expanded control resources to support multicarrier assignments, large numbers of devices being addressed, special operation modes, new downlink control information (DCI) formats, and/or the like.
摘要翻译：描述了有助于在分配用于在传统网络规范中传送通用非控制数据的资源上定义新的控制区域的系统和方法。新的控制区域可以包括多个控制信道，其可以一起复用和/或与通用数据信道进行多路复用。设备可以通过新的控制区域接收控制数据，以及关于区域的信息，例如区域的位置，特定资源的位置，复用方案，跳频模式等，以适当地解码相关的控制数据。这允许扩展的控制资源支持多载波分配，正在寻址的大量设备，特殊操作模式，新的下行链路控制信息（DCI）格式等。

8. 发明申请

WO2009058809A2 ARRANGEMENT AND METHOD FOR TRANSMITTING CONTROL INFORMATION IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：无线通信系统中发送控制信息的安排和方法
公开(公告)号：WO2009058809A2
公开(公告)日：2009-05-07
申请号：PCT/US2008/081511
申请日：2008-10-29
申请人： QUALCOMM INCORPORATED , MONTOJO, Juan , MALLADI, Durga Prasad
发明人： MONTOJO, Juan , MALLADI, Durga Prasad
IPC分类号： H04L1/16 , H04L1/00
CPC分类号： H04L5/0053 , H04L1/0026 , H04L1/003 , H04L1/1671 , H04L1/1858 , H04L5/0007 , H04L5/0064 , H04L5/0091
摘要： Systems and methodologies are described that facilitate arrangement and transmission of control information in a wireless communication system. As described herein, a scheduled transmission of acknowledgement (ACK) signaling and channel quality information (CQI) signaling in a common subframe can be adapted for network implementations with limited link budget wherein ACK signaling is configured for repetition over multiple subframes to ensure a desired error rate level for the ACK signaling. To these ends, various aspects described herein facilitate modification of a coding rate applied to ACK signaling to be transmitted with data based on a repetition factor of the ACK signaling. Additionally and/or alternatively, various aspects described herein facilitate dropping of CQI signaling and transmission of only ACK signaling on subframes where CQI and ACK signaling are to be transmitted substantially simultaneously and ACK transmission is configured for repetition over multiple subframes.
摘要翻译：描述了有助于无线通信系统中的控制信息的布置和传输的系统和方法。如本文所描述的，在公共子帧中的确认（ACK）信令和信道质量信息（CQI）信令的调度传输可以适用于具有有限链路预算的网络实现，其中ACK信令被配置为在多个子帧上重复以确保期望的误差 ACK信号的速率级别。为此，本文描述的各个方面有助于修改应用于基于ACK信令的重复因素的数据传送的ACK信令的编码率。附加地和/或替代地，本文描述的各个方面有助于丢弃CQI信令，并且仅在基本上同时发送CQI和ACK信令的子帧上发送ACK信令，并且将ACK传输配置为在多个子帧上进行重复。

9. 发明申请

WO2009049167A2 EFFICIENT SYSTEM IDENTIFICATION SCHEMES FOR COMMUNICATION SYSTEMS 审中-公开
标题翻译：通信系统的高效系统识别方案
公开(公告)号：WO2009049167A2
公开(公告)日：2009-04-16
申请号：PCT/US2008/079527
申请日：2008-10-10
申请人： QUALCOMM INCORPORATED , LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , GAAL, Peter , SARKAR, Sandip
发明人： LUO, Tao , MALLADI, Durga Prasad , MONTOJO, Juan , GAAL, Peter , SARKAR, Sandip
IPC分类号： H04J3/02 , H04L5/14 , H04L27/26
CPC分类号： H04W48/12 , H04J11/0069 , H04L27/2602 , H04W56/001
摘要： Systems and methodologies are described that facilitate efficiently indicating parameter(s) associated with a base station utilizing synchronization signals in a wireless communication environment. For instance, relative locations of a PSC and a SSC in a radio frame can be a function of a parameter. Further, a PSC sequence utilized to generate PSCs can be selected based upon a parameter. Moreover, inclusion or exclusion of PSCs from a radio frame can be a function of a parameter. Additionally or alternatively, pseudo random sequence mappings (e.g., to cell IDs, tone locations) can be a function of a parameter. Example parameters can be whether the base station is part of a TDD or a FDD system, whether the radio frame employs FS1 or FS2, whether the base station is associated with a macro or a femto cell, or whether the base station is associated with a unicast or a multicast system.
摘要翻译：描述了在无线通信环境中利用同步信号有助于有效地指示与基站相关联的参数的系统和方法。例如，无线电帧中的PSC和SSC的相对位置可以是参数的函数。此外，可以基于参数来选择用于生成PSC的PSC序列。此外，从无线电帧中包含或排除PSC可以是参数的函数。另外或可选地，伪随机序列映射（例如，到小区ID，音调位置）可以是参数的函数。示例参数可以是基站是否是TDD或FDD系统的一部分，无线电帧是否使用FS1或FS2，基站是否与宏或毫微微小区相关联，或者基站是否与单播或多播系统。

10. 发明申请

WO2009023863A1 METHOD AND APPARATUS FOR BEAMFORMING 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波束的方法和装置
公开(公告)号：WO2009023863A1
公开(公告)日：2009-02-19
申请号：PCT/US2008/073394
申请日：2008-08-15
申请人： QUALCOMM Incorporated , SARKAR, Sandip , KIM, Byoung-hoon , MALLADI, Durga Prasad , MONTOJO, Juan
发明人： SARKAR, Sandip , KIM, Byoung-hoon , MALLADI, Durga Prasad , MONTOJO, Juan
IPC分类号： H04B7/04
CPC分类号： H04B7/043 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/0053 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
摘要翻译：描述用于在无线通信系统中发送业务数据和控制信息的技术。在一种设计中，发射机（例如，节点B或UE）可以基于预编码矩阵来执行波束成形以在M层上发送业务数据，其中M可以是一个或更多个。发射机还可以基于用于业务数据的相同预编码矩阵来执行波束成形以发送多达M个层的控制信息。发射机可以在第一物理信道上发送波束形成的业务数据，并且可以在第二物理信道上发送波束形成的控制信息。发射机可以使用时分复用（TDM）或频分复用（FDM）来复用波束形成的业务数据和波束形成的控制信息。

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