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

US20110064045A1 Allocation of Periodically Distributed Frames of Wireless Communication 有权
标题翻译：无线通信定期分布式帧分配
公开(公告)号：US20110064045A1
公开(公告)日：2011-03-17
申请号：US12951149
申请日：2010-11-22
申请人： Soumen Chakraborty , Sindhu Verma , Manish Airy , Anuj Puri
发明人： Soumen Chakraborty , Sindhu Verma , Manish Airy , Anuj Puri
IPC分类号： H04W72/04
CPC分类号： H04W72/0446 , H04W72/044
摘要： Methods of allocating a plurality of periodically distributed frames of communication between a first wireless transceiver and a second wireless transceiver are disclosed. One method includes detecting periodic data for transmission between the wireless base station and the wireless mobile unit. A transmission map that maps frequency and time slots is generated for transmission of the data packets. Allocation information is included within less than all of a plurality of transmission maps of the plurality of periodically distributed frames. The allocation information designates frequency and time slots in which data packets identified as a periodic data type are transmitted to the second wireless transceiver for the plurality of periodically distributed frames.
摘要翻译：公开了在第一无线收发器和第二无线收发器之间分配多个周期性分布的通信帧的方法。一种方法包括检测用于无线基站和无线移动单元之间的传输的周期性数据。生成映射频率和时隙的传输图，用于传输数据分组。分配信息包括在多个周期性分布的帧的多个传输图的小于全部中。分配信息指定频率和时隙，其中标识为周期性数据类型的数据分组被发送到用于多个周期性分布的帧的第二无线收发器。

2. 发明申请

US20110047530A1 Method and System for Testing a Software Program 有权
标题翻译：测试软件程序的方法和系统
公开(公告)号：US20110047530A1
公开(公告)日：2011-02-24
申请号：US12917414
申请日：2010-11-01
申请人： Sriram V. Iyer
发明人： Sriram V. Iyer
IPC分类号： G06F9/44
CPC分类号： G06F11/3668 , G06F9/4491
摘要： Methods and systems for testing a software program are provided. The methods include receiving a textual input for testing at least one static type used by the software program. The textual input of an embodiment is pre-linked to the at least one static type. The method includes creating a dynamic type based on the textual input in a dynamically typed language. The dynamic type is populated based on a predefined set of test vectors and is then passed on to the software program. The software program is executed using the dynamic type. Executing the software program by using the dynamic type invokes the at least one static type used by the software program.
摘要翻译：提供了测试软件程序的方法和系统。这些方法包括接收用于测试由软件程序使用的至少一个静态类型的文本输入。实施例的文本输入被预先链接到至少一个静态类型。该方法包括基于动态类型语言的文本输入创建动态类型。基于预定义的一组测试向量填充动态类型，然后传递给软件程序。使用动态类型执行软件程序。使用动态类型执行软件程序会调用软件程序使用的至少一个静态类型。

3. 发明申请

US20110019778A1 Estimating Frequency Offset at a Subscriber Station Receiver 有权
标题翻译：用户站接收机估计频偏
公开(公告)号：US20110019778A1
公开(公告)日：2011-01-27
申请号：US12900094
申请日：2010-10-07
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H04L27/06
CPC分类号： H04L27/2657 , H04L5/0007 , H04L5/005 , H04L27/2675
摘要： A method and system of estimating frequency offset at a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, in which the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols include a plurality of pilot sub-carriers. The subscriber station selects a subset of the plurality of pilot sub-carriers of the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between received symbols across at least one pair of multi-carrier symbols of each of the pilot sub-carriers of the selected subset of the plurality of pilot sub-carriers.
摘要翻译：公开了一种估计用户台频偏的方法和系统。该方法包括用户站接收复合信号，其中复合信号包括从多个基站发送的多载波信号。用户站选择多个基站的子集。用户站选择复合信号的至少一对多载波符号，其中至少一对多载波符号中的每一个包括多个导频子载波。用户站基于由多个子载波子集的子集发送的多载波信号的导频子载波的发射导频符号来选择至少一对多载波码元的多个导频子载波的子集基站基于多个导频子载波的所选子集的每个导频子载波的至少一对多载波符号之间的接收符号之间的共轭乘积来估计频率偏移。

4. 发明授权

US07852909B2 Method and apparatus for estimating frequency offset and timing offset of one or more mobile stations (MSs) 有权
标题翻译：用于估计一个或多个移动站（MS）的频率偏移和定时偏移的方法和装置
公开(公告)号：US07852909B2
公开(公告)日：2010-12-14
申请号：US12004570
申请日：2007-12-21
申请人： Rajesh Raja Manakkal , Louay Jalloul , Sam P. Alex , Anupama Lakshmanan , Djordje Tujkovic , Sriram Mudulodu
发明人： Rajesh Raja Manakkal , Louay Jalloul , Sam P. Alex , Anupama Lakshmanan , Djordje Tujkovic , Sriram Mudulodu
IPC分类号： H04B1/38
CPC分类号： H04L27/2662 , H04L5/0007 , H04L5/0051 , H04L27/2657 , H04L27/2675
摘要： A method and apparatus for estimating frequency offset and timing offset of a first Mobile Station (MS) in a communication system is provided. The method includes receiving a composite signal at a plurality of receiver antennas of a Base Transceiver Station (BTS). The composite signal includes a first signal transmitted from a first MS and a second signal transmitted from a second MS. The composite signal includes one or more tiles. Each tile includes a plurality of data sub-carriers, a plurality of first pilot sub-carriers, and a plurality of second pilot sub-carriers. A total phase offset of the first MS is estimated based on a complex conjugate product of pilot symbols of the plurality of first pilot sub-carriers. Thereafter, a first phase offset corresponding to the timing offset of the first MS is estimated based on a Power Delay Profile (PDP) of one or more first pilot sub-carriers. Finally, a second phase offset corresponding to the frequency offset of the first MS is determined based on the total phase offset and the first phase offset.
摘要翻译：提供了一种用于估计通信系统中的第一移动台（MS）的频率偏移和定时偏移的方法和装置。该方法包括在基站收发台（BTS）的多个接收机天线处接收复合信号。复合信号包括从第一MS发送的第一信号和从第二MS发送的第二信号。复合信号包括一个或多个瓦片。每个瓦片包括多个数据副载波，多个第一导频子载波和多个第二导频子载波。基于多个第一导频子载波的导频符号的复共轭乘积来估计第一MS的总相位偏移。此后，基于一个或多个第一导频子载波的功率延迟曲线（PDP）来估计与第一MS的定时偏移相对应的第一相位偏移。最后，基于总相位偏移和第一相位偏移来确定与第一MS的频率偏移相对应的第二相位偏移。

5. 发明授权

US07827530B2 Methods and systems for testing a software program 失效
标题翻译：用于测试软件程序的方法和系统
公开(公告)号：US07827530B2
公开(公告)日：2010-11-02
申请号：US11506102
申请日：2006-08-17
申请人： Sriram V. Iyer
发明人： Sriram V. Iyer
IPC分类号： G06F9/44
CPC分类号： G06F11/3668 , G06F9/4491
摘要： Methods and systems for testing a software program are provided. The methods include receiving a textual input for testing at least one static type used by the software program. The textual input of an embodiment is pre-linked to the at least one static type. The method includes creating a dynamic type based on the textual input in a dynamically typed language. The dynamic type is populated based on a predefined set of test vectors and is then passed on to the software program. The software program is executed using the dynamic type. Executing the software program by using the dynamic type invokes the at least one static type used by the software program.
摘要翻译：提供了测试软件程序的方法和系统。这些方法包括接收用于测试由软件程序使用的至少一个静态类型的文本输入。实施例的文本输入被预先链接到至少一个静态类型。该方法包括基于动态类型语言的文本输入创建动态类型。基于预定义的一组测试向量填充动态类型，然后传递给软件程序。使用动态类型执行软件程序。使用动态类型执行软件程序会调用软件程序使用的至少一个静态类型。

6. 发明授权

US07813437B2 Estimating frequency offset at a subscriber station receiver 有权
标题翻译：估计用户台接收机的频偏
公开(公告)号：US07813437B2
公开(公告)日：2010-10-12
申请号：US11900799
申请日：2007-09-13
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H04L27/28
CPC分类号： H04L27/2657 , H04L5/0007 , H04L5/005 , H04L27/2675
摘要： A method and system of estimating frequency offset at a subscriber station is disclosed. The method includes the subscriber station receiving a composite signal, in which the composite signal includes multi-carrier signals transmitted from a plurality of base stations. The subscriber station selects a subset of the plurality of base stations. The subscriber station selects at least one pair of multi-carrier symbols of the composite signal, wherein each of the at least one pair of multi-carrier symbols include a plurality of pilot sub-carriers. The subscriber station selects a subset of the plurality of pilot sub-carriers of the at least one pair of multi-carrier symbols based on transmit pilot symbols of the pilot sub-carriers of the multi-carrier signals transmitted by the subset of the plurality of base stations. The frequency offset is estimated based on a conjugate product between received symbols across at least one pair of multi-carrier symbols of each of the pilot sub-carriers of the selected subset of the plurality of pilot sub-carriers.
摘要翻译：公开了一种估计用户台频偏的方法和系统。该方法包括用户站接收复合信号，其中复合信号包括从多个基站发送的多载波信号。用户站选择多个基站的子集。用户站选择复合信号的至少一对多载波符号，其中至少一对多载波符号中的每一个包括多个导频子载波。用户站基于由多个子载波子集的子集发送的多载波信号的导频子载波的发射导频符号来选择至少一对多载波码元的多个导频子载波的子集基站基于多个导频子载波的所选子集的每个导频子载波的至少一对多载波符号之间的接收符号之间的共轭乘积来估计频率偏移。

7. 发明申请

US20090310562A1 Wireless subscriber inter-technology handoff 有权
标题翻译：无线用户间技术切换
公开(公告)号：US20090310562A1
公开(公告)日：2009-12-17
申请号：US12454996
申请日：2009-05-26
申请人： Kameswara Medapalli
发明人： Kameswara Medapalli
IPC分类号： H04W36/00
CPC分类号： H04W36/14 , H04W36/0061 , H04W36/30 , H04W88/06 , Y02D70/00 , Y02D70/146
摘要： Embodiments for a method and apparatus of a wireless subscriber unit triggering an inter-technology handoff are disclosed. One method includes estimating a signal quality of first technology communication signals received from a serving base station. Information of neighboring base stations is received from the serving base station. Based on the information of the neighboring base stations, a signal quality of first technology communication signals received from each of the neighboring base stations is estimated. An inter-technology handoff is triggered based on a function of the signal quality of communication signals received from a serving base station and the signal quality of communication signals received from each of the neighboring base stations.
摘要翻译：公开了触发技术间切换的无线用户单元的方法和装置的实施例。一种方法包括估计从服务基站接收的第一技术通信信号的信号质量。从服务基站接收相邻基站的信息。基于相邻基站的信息，估计从每个相邻基站接收到的第一技术通信信号的信号质量。基于从服务基站接收的通信信号的信号质量的函数和从每个相邻基站接收的通信信号的信号质量来触发技术间切换。

8. 发明申请

US20090034558A1 Method and system for detecting a presence and a start of a zone in a frame 失效
标题翻译：用于检测帧中的区域的存在和开始的方法和系统
公开(公告)号：US20090034558A1
公开(公告)日：2009-02-05
申请号：US11888256
申请日：2007-07-31
申请人： Sriram Mudulodu , Louay Jalloul
发明人： Sriram Mudulodu , Louay Jalloul
IPC分类号： H04J3/06
CPC分类号： H04L27/2656 , H04L5/0007 , H04L5/0048 , H04L5/0092 , H04L25/0224 , H04L27/261 , H04L27/2662 , H04L27/2675 , H04W52/0216 , H04W52/0219 , Y02D70/146
摘要： The present invention provides methods and systems for detecting a start symbol of a second zone of a frame. One or more symbol indices corresponding to one or more symbols of the second zone of a frame are derived. One or more codes on pilot sub-carriers corresponding to the one or more symbol indices may also be derived. Based on the one or more symbol indices a set of possible start symbol indices is established. Thereafter, a frame is received comprising one or more of a preamble symbol, a first zone and the second zone. It is determined if the received frame comprises the second zone. If the second zone is present in the received frame, the start symbol index of the second zone of the received frame is determined based on the detection of one or more codes and the set of possible start symbol indices. The present invention further provides methods and systems for detecting a Nth symbol of a frame.
摘要翻译：本发明提供了用于检测帧的第二区的起始符号的方法和系统。导出与帧的第二区域的一个或多个符号相对应的一个或多个符号索引。也可以导出对应于一个或多个符号索引的导频子载波上的一个或多个码。基于一个或多个符号索引，建立一组可能的起始符号索引。此后，接收包括前导符号，第一区和第二区中的一个或多个的帧。确定接收帧是否包括第二区。如果接收到的帧中存在第二区域，则基于检测到一个或多个代码和可能的起始符号索引的集合来确定接收帧的第二区域的起始符号索引。本发明还提供了用于检测帧的第N个符号的方法和系统。

9. 发明申请

US20080273510A1 Methods of transmitting pilot tones and data in spatial multiplexing transmission 有权
标题翻译：在空间复用传输中发送导频音和数据的方法
公开(公告)号：US20080273510A1
公开(公告)日：2008-11-06
申请号：US11823692
申请日：2007-06-28
申请人： Sriram Mudulodu , Rajesh Raja Manakkal , Sam P. Alex , Louay Jalloul
发明人： Sriram Mudulodu , Rajesh Raja Manakkal , Sam P. Alex , Louay Jalloul
IPC分类号： H04H1/00
CPC分类号： H04B7/0452 , H04B7/068 , H04L5/0023 , H04L5/0037 , H04L5/0042 , H04L5/005 , H04L5/0051 , H04L27/2657 , H04W52/325
摘要： A method and apparatus of transmitting pilot tones and data in multi-carrier spatial multiplexing transmission is disclosed. The method includes a plurality of subscribers transmitting data to a base station through common frequency sub-carrier and symbol time tiles. Each of the multiple subscribers rotating frequency sub-carrier and symbol time locations of pilot tones within the frequency sub-carrier and symbol time tiles.
摘要翻译：公开了一种在多载波空间复用传输中发送导频音和数据的方法和装置。该方法包括多个用户通过公共频率子载波和符号时间块向基站发送数据。多个用户中的每一个在频率子载波和符号时间瓦片内旋转导频音调的频率子载波和符号时间位置。

10. 发明申请

US20080175140A1 Methods and systems for performing channels estimation in a wireless communication system 有权
标题翻译：用于在无线通信系统中执行信道估计的方法和系统
公开(公告)号：US20080175140A1
公开(公告)日：2008-07-24
申请号：US11657507
申请日：2007-01-23
申请人： Sriram Mudulodu , Sam P. Alex , Louay Jalloul
发明人： Sriram Mudulodu , Sam P. Alex , Louay Jalloul
IPC分类号： H04J11/00
CPC分类号： H04L25/0212 , H04L25/0224
摘要： The invention provides methods and systems for channel estimation. A method comprises receiving a plurality of signal frames, comprising at least a first zone and a second zone, from a plurality of base stations in the wireless communication system. Two or more first delay profiles corresponding to two or more base stations are determined using the first zone. The method further comprising detecting at least one aliased tap in a time domain channel response of the second zone using the two or more first delay profiles. Another method comprises receiving a signal frame, comprising at least a preamble symbol and a data part, from a base station. A first delay profile corresponding to the preamble symbol is determined and a second delay profile corresponding to the data part is obtained. The first delay profile is analyzed in conjunction with the second delay profile to detect one or more aliased taps in a time domain channel response of the data part. The detected one or more aliased taps are nulled/rectified.
摘要翻译：本发明提供了用于信道估计的方法和系统。一种方法包括从无线通信系统中的多个基站接收包括至少第一区域和第二区域的多个信号帧。使用第一区确定对应于两个或多个基站的两个或多个第一延迟分布。该方法还包括使用两个或更多个第一延迟分布来检测第二区域的时域信道响应中的至少一个混叠抽头。另一种方法包括从基站接收包括至少前同步码符号和数据部分的信号帧。确定对应于前导符号的第一延迟分布，并且获得与数据部分对应的第二延迟分布。第一延迟分布结合第二延迟分布来分析，以在数据部分的时域信道响应中检测一个或多个混叠抽头。检测到的一个或多个别名抽头被归零/纠正。

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