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

WO2007121385A1 METHODS AND APPARATUS RELATED TO COMPOSITE BEACON AND WIDEBAND SYNCHRONIZATION SIGNALING 审中-公开
标题翻译：与复合贝塔和宽带同步信号相关的方法和装置
公开(公告)号：WO2007121385A1
公开(公告)日：2007-10-25
申请号：PCT/US2007/066674
申请日：2007-04-14
申请人： QUALCOMM INCORPORATED , PARIZHSKY, Vladimir , LAROIA, Rajiv , LEONIDOV, Alexander , RICHARDSON, Thomas , LI, Junyi , UPPALA, Sathyadev Venkata
发明人： PARIZHSKY, Vladimir , LAROIA, Rajiv , LEONIDOV, Alexander , RICHARDSON, Thomas , LI, Junyi , UPPALA, Sathyadev Venkata
IPC分类号： H04L27/26
CPC分类号： H04L27/2613 , H04L5/023 , H04L27/2614 , H04L27/2655
摘要： A composite signal includes a high power beacon signal and low power corresponding wideband synchronization signal and is communicated over a time interval exceeding a single OFDM transmission time interval. A base station transmits one or more different such composite broadcast signals in a recurring timing structure. Each different potential beacon signal, e.g., a single tone signal, is paired with a unique wideband synchronization signal. A wideband synchronization signal includes at least some predetermined null tones and at least some predetermined non-null tones. For a given wideband synchronization signal, the predetermined null tones carry predetermined modulation symbol values. A wireless terminal receives a composite signal, identifies a beacon, determines a corresponding known wideband synchronization signal, compares received to known wideband synchronization signals, and determines at least one of a timing adjustment, frequency adjustment and channel estimation.
摘要翻译：复合信号包括高功率信标信号和低功率对应的宽带同步信号，并且在超过单个OFDM传输时间间隔的时间间隔上传送。基站以循环定时结构发送一个或多个不同的这种复合广播信号。每个不同的潜在信标信号，例如单个音调信号，与唯一的宽带同步信号配对。宽带同步信号至少包括一些预定的无效音调和至少一些预定的非空音调。对于给定的宽带同步信号，预定的空音携带预定的调制符号值。无线终端接收复合信号，识别信标，确定对应的已知宽带同步信号，将接收到的已知宽带同步信号进行比较，并确定定时调整，频率调整和信道估计中的至少一个。

2. 发明申请

WO2008070212A2 METHODS AND APPARATUS RELATED TO RESOURCE ALLOCATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：无线通信系统中与资源分配有关的方法和设备
公开(公告)号：WO2008070212A2
公开(公告)日：2008-06-12
申请号：PCT/US2007/073288
申请日：2007-07-11
申请人： QUALCOMM Incorporated , LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev Venkata
发明人： LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev Venkata
IPC分类号： H04Q7/38
CPC分类号： H04W72/042 , H04W74/04
摘要： Methods and apparatus of efficient communication of resource allocation are described. A base station transmits a resource assignment message, e.g., a state transition message, to a wireless terminal including a first part, e.g., a base station assigned wireless terminal On state identifier, identifying a resource being assigned and a second part, e.g., an ON state mask, identifying a portion of the resource allocated to the wireless terminal. The same resource allocation message information also communicates one of a plurality of different modes of commanded On state operation. The resource allocation message structure supports flexible allocation of available resources facilitating a resource to be partitioned differently at different times accommodating current needs. A predetermined recurring channel structure and association of segments with particular mask bits, facilitates allocated control segments to be used unambiguously without the need to include an overhead wireless terminal identifier field with the control report bits being communicated.
摘要翻译：描述了资源分配的有效通信的方法和设备。基站向包括第一部分的无线终端发送例如状态转换消息的资源分配消息，该第一部分例如基站分配的无线终端开启状态标识符，标识被分配的资源和第二部分，例如， ON状态掩码，标识分配给无线终端的资源的一部分。相同的资源分配消息信息还传达多个不同的命令开启状态操作模式中的一种。资源分配消息结构支持可用资源的灵活分配，从而有助于资源在不同时间以不同方式划分以满足当前需求。预定的循环信道结构以及分段与特定掩码比特的关联有助于分配的控制分段被明确地使用，而不需要在控制报告比特被传送的情况下包括开销无线终端标识符字段。

3. 发明申请

WO2008008870A3 METHODS AND APPARATUS RELATED TO ASSIGNMENT IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
公开(公告)号：WO2008008870A3
公开(公告)日：2008-01-17
申请号：PCT/US2007/073321
申请日：2007-07-12
申请人： QUALCOMM Incorporated , LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev Venkata
发明人： LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev Venkata
IPC分类号： H04Q7/38
摘要： Methods and apparatus related to assignment in a wireless communications system are described. A mobile is assigned an identifier and a mask value, e.g., as part of a state transition message. The mobile uses the assigned identifier and/or the assigned mask value in determining whether assignments included in assignment messages, e.g., traffic channel assignment messages, are directed to the wireless terminal. Predetermined associations between assignment slots, assigned segments, and/or mask values are utilized to limit control signaling overhead. Different groups of segments are available for assignment to different wireless terminals as a function of mask values. Different types of assignment messages use different amounts of information bits to convey the assignment. Some types of assignments use a wireless terminal identifier, while other types of assignments use a wireless terminal identifier and a mask identifier. The mask identifier, e.g., a single bit, allows for selection between a subset of the potential masks used in the system.

4. 发明申请

WO2006044661A3 IMPROVED BEACON SIGNALS FACILITATING SIGNAL DETECTION AND TIMING SYNCHRONIZATION 审中-公开
公开(公告)号：WO2006044661A3
公开(公告)日：2006-04-27
申请号：PCT/US2005/037019
申请日：2005-10-14
申请人： FLARION TECHNOLOGIES, INC. , LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev, Venkata
发明人： LAROIA, Rajiv , PARIZHSKY, Vladimir , LI, Junyi , UPPALA, Sathyadev, Venkata
IPC分类号： H04J3/06 , H04L7/00
摘要： Improved beacon signaling methods are described. Beacon signals are transmitted on the same tone in at least two consecutive symbol periods facilitating accurate energy measurements over a symbol period even if timing synchronization with the transmitter is not maintained. A low power wideband signal is also combined with the beacon signal to facilitate channel estimation and other operation such as timing synchronization operations.

5. 发明申请

WO2011005601A1 METHOD AND APPARATUS FOR COMMUNICATING WITH ANTENNA SELECTION 审中-公开
标题翻译：用于与天线选择通信的方法和装置
公开(公告)号：WO2011005601A1
公开(公告)日：2011-01-13
申请号：PCT/US2010/039723
申请日：2010-06-23
申请人： QUALCOMM INCORPORATED , PARIZHSKY, Vladimir , LI, Junyi , LAROIA, Rajiv
发明人： PARIZHSKY, Vladimir , LI, Junyi , LAROIA, Rajiv
IPC分类号： H04B7/06 , H04B7/08
CPC分类号： H04B7/0608 , H04B7/0808
摘要： Wireless communications methods and apparatus for a device using multiple antennas are described. A first wireless communications device (501) receives signals from a second communications device (602). The first device generates receiver interference estimates corresponding to different antennas and selects one antenna (504) to receive signals from the second device, as a function of the generated receiver interference estimates. The first device receives signals from one or more additional devices to which first device transmission may cause interference. The first device generates transmitter interference estimates corresponding to different antennas and selects one antenna (502) to transmit signals to the second device as a function of the generated transmitter interference estimates. The first device may, and sometimes does, select different receive and transmit antennas for communicating with the second device.
摘要翻译：描述了使用多个天线的设备的无线通信方法和装置。第一无线通信设备（501）从第二通信设备（602）接收信号。第一设备产生对应于不同天线的接收机干扰估计，并且根据所生成的接收机干扰估计值选择一个天线（504）以从第二设备接收信号。第一设备从一个或多个附加设备接收信号，第一设备传输可能引起干扰。第一设备产生对应于不同天线的发射机干扰估计，并且根据所生成的发射机干扰估计值选择一个天线（502）以将信号传输到第二设备。第一设备可以并且有时候可以选择用于与第二设备进行通信的不同的接收和发射天线。

6. 发明申请

WO2008009003A3 METHOD AND APPARATUS FOR SIGNALLING BEACONS IN A COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2008009003A3
公开(公告)日：2008-01-17
申请号：PCT/US2007/073541
申请日：2007-07-13
申请人： QUALCOMM Incorporated , LI, Junyi , LEONIDOV, Alexander , PARIZHSKY, Vladimir
发明人： LI, Junyi , LEONIDOV, Alexander , PARIZHSKY, Vladimir
IPC分类号： H04L5/02
摘要： Methods and apparatus for beacon signaling in a wireless communication system are described. Information is encoded in the tone position of the beacon tone. The information encoded may include sector type, sector index and slope index, as well as some time index. The information is coded in the tone position so that any few of several beacons can be decoded in order to decode the information. The methods and apparatus described in the invention improve the robustness against frequency selective fading and do not require wireless terminals to establish synchronization for reliable base station detection.

7. 发明申请

WO2006044487A3 WIRELESS TERMINAL METHODS AND APPARATUS FOR USE IN WIRELESS COMMUNICATIONS SYSTEMS SUPPORTING DIFFERENT SIZE FREQUENCY BANDS 审中-公开
公开(公告)号：WO2006044487A3
公开(公告)日：2006-04-27
申请号：PCT/US2005/036736
申请日：2005-10-12
申请人： FLARION TECHNOLOGIES, INC. , LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
发明人： LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
IPC分类号： H04J11/00
摘要： More efficient utilization of available bandwidth is implemented in an OFDM wireless communication system. The partitions of bandwidth may be of different sizes and may be different from the original system design parameters. Basic system structure such as the number of tones used and the number of OFDM symbol times in a slot is maintained throughout the system. Bandwidth is varied by adjusting the inter-tone spacing or bandwidth associated with a single tone. As the inter-tone spacing is increased, the OFDM symbol transmission time is decreased following an inverse proportional relationship. A wireless communications device, during a first period of time transmits signals using a first uplink frequency band of a first number of uniformly distributed tones and during a second period of time transmits signals using a second uplink frequency band of a second number of uniformly distributed tones, the second number being the same as the first number, the second frequency band being wider than the first frequency band.

8. 发明申请

WO2002073870A2 METHOD OF SYMBOL TIMING SYNCHRONIZATION IN COMMUNICATION SYSTEMS 审中-公开
标题翻译：通信系统中符号时序同步的方法
公开(公告)号：WO2002073870A2
公开(公告)日：2002-09-19
申请号：PCT/US2002/006265
申请日：2002-03-04
申请人： FLARION TECHNOLOGIES, INC. , LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
发明人： LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
IPC分类号： H04L7/033
CPC分类号： H04W56/0045 , H04L5/023 , H04L7/0334 , H04L27/2646 , H04L27/2662 , H04W56/0005
摘要： Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.
摘要翻译：描述了多个无线终端与单个基站通信的OFDM通信系统中的符号定时同步。基站发射机和接收机的符号定时是固定的。每个无线终端操作以独立地调整其发射机定时。无线终端的发射机定时同步被切换到终端的接收机定时同步。每个无线终端首先基于从基站接收的信号来校正其接收机符号定时。然后，无线终端根据其接收机符号定时调整其发射机符号定时。当接收机符号定时被提前或延迟一定量时，发射机符号定时也分别前进或延迟相同或基本相同的量。符号定时调整可以通过在驻留中从第一个或最后一个符号添加或删除数字样本来进行。

9. 发明申请

WO2007075728A2 METHODS AND APPARATUS OF IMPLEMENTING AND/OR USING A DEDICATED CONTROL CHANNEL 审中-公开
标题翻译：实施和/或使用专用控制信道的方法和装置
公开(公告)号：WO2007075728A2
公开(公告)日：2007-07-05
申请号：PCT/US2006/048501
申请日：2006-12-20
申请人： QUALCOMM FLARION TECHNOLOGIES, INC. , PARIZHSKY, Vladimir , LAROIA, Rajiv , LI, Junyi , VENKATA UPPALA, Sathyadev , DAS, Arnab
发明人： PARIZHSKY, Vladimir , LAROIA, Rajiv , LI, Junyi , VENKATA UPPALA, Sathyadev , DAS, Arnab
IPC分类号： H04W4/06 , H04W24/10 , H04W28/12 , H04W72/12 , H04W74/08
CPC分类号： H04W72/0453 , H04L1/0026 , H04L27/2602 , H04L47/10 , H04W24/02 , H04W24/10 , H04W28/12 , H04W28/18 , H04W28/24 , H04W72/005 , H04W72/0413 , H04W72/042 , H04W72/1221 , H04W72/1236 , H04W72/1242 , H04W72/1252 , H04W72/1284 , H04W74/0875
摘要： Wireless terminals and base stations support multiple modes of dedicated control channel operation wherein wireless terminals are allocated different amounts of dedicated uplink resources for reporting control information. A set of dedicated control channel segments is utilized by a wireless terminal to communicate uplink control information reports to its serving base station attachment point. Full tone and split-tone modes of dedicated control channel operation are supported. In full tone mode, a single wireless terminal is allocated each of the dedicated control channel segments associated with a single logical tone. In split tone mode, dedicated control channel segments associated with a single logical tone are allocated between different wireless terminals, with each of the multiple wireless terminals receiving a different non-overlapping subset of the dedicated control channel segments. Logical dedicated control channel tones can be dynamically reallocated for full-tone mode use or split.tone mode use.
摘要翻译：无线终端和基站支持专用控制信道操作的多种模式，其中无线终端被分配不同量的专用上行链路资源用于报告控制信息。无线终端利用一组专用控制信道段，将上行链路控制信息报告传送到其服务基站附着点。支持专用控制通道操作的全音和分频模式。在全音模式下，分配与单个逻辑音调相关联的每个专用控制信道段的单个无线终端。在分离音模式中，与单个逻辑音调相关联的专用控制信道段在不同的无线终端之间分配，多个无线终端中的每一个接收专用控制信道段的不重叠子集。可以动态地重新分配逻辑专用控制信道音调以进行全音色模式的使用或分割模式的使用。

10. 发明申请

WO2006044489A1 METHODS AND APPARATUS FOR ADJUSTING BAND WIDTH ALLOCATION IN A WIRELESS COMMUNICATIONS SYSTEM 审中-公开
标题翻译：无线通信系统中调频带宽分配的方法与装置
公开(公告)号：WO2006044489A1
公开(公告)日：2006-04-27
申请号：PCT/US2005/036739
申请日：2005-10-12
申请人： FLARION TECHNOLOGIES, INC. , LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
发明人： LAROIA, Rajiv , LI, Junyi , PARIZHSKY, Vladimir
IPC分类号： H04J11/00 , H04J9/00 , H04L5/04 , H04Q7/00
CPC分类号： H04L27/2602 , H04L5/0042
摘要： More efficient utilization of available bandwidth is implemented in an OFDM wireless communication system. The partitions of bandwidth may be of different sizes and may be different from the original system design parameters. Basic system structure such as the number of tones used and the number of OFDM symbol times in a slot is maintained throughout the system. Bandwidth is varied by adjusting the inter-tone spacing or bandwidth associated with a single tone. As the inter-tone spacing is increased, the OFDM symbol transmission time is decreased following an inverse proportional relationship. A first base station transmitter transmits signals on a first number of tones distributed uniformly in a first frequency band (1202), and a second base station transmitter transmits signals on a second number of tones distributed uniformly in a second frequency band which is wider than the first frequency band, the second number of tones being the same as the first number of tones (1204). The first and second base stations support handoffs of mobile nodes between to each other (1216).
摘要翻译：在OFDM无线通信系统中实现可用带宽的更有效利用。带宽分区可能具有不同的大小，并且可能与原始系统设计参数不同。在整个系统中保持基本系统结构，例如所使用的音调数量和时隙中的OFDM符号时间的数量。通过调整与单个音调相关联的音调间距或带宽来改变带宽。随着色间间隔的增加，OFDM符号传输时间按照反比例关系减小。第一基站发射机以第一频带（1202）均匀分布的第一数量的音调发射信号，第二基站发射机在第二频带上均匀地分布在第二频带上的信号，该第二频带宽度大于第一频带，第二数量的音调与第一音调数（1204）相同。第一和第二基站支持移动节点之间的切换（1216）。

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