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1. 发明授权

US09985722B2 Method of performing uplink synchronization in random 有权
公开(公告)号：US09985722B2
公开(公告)日：2018-05-29
申请号：US15096520
申请日：2016-04-12
申请人： Optis Cellular Technology, LLC
发明人： Sung Jun Park , Seung June Yi , Young Dae Lee , Sung Duck Chun
IPC分类号： H04B7/26 , H04W56/00 , H04W74/00 , H04W74/08 , H04J11/00 , H04W72/04 , H04W88/16
CPC分类号： H04B7/2681 , H04J11/003 , H04J2011/0096 , H04W56/0005 , H04W56/0045 , H04W72/0413 , H04W72/0446 , H04W74/002 , H04W74/0833 , H04W88/16
摘要： A method and device for performing a contention based random access procedure by a mobile communication terminal in communication with a base station. The method according to an embodiment includes transmitting a random access preamble message to the base station; receiving a random access response from the base station, the random access response including a timing advance command; determining a status of a mobile communication terminal time alignment timer; and ignoring the timing advance command if the mobile communication terminal time alignment timer is determined to be running in the determining step.

2. 发明授权

US09847830B2 Techniques for pruning false peaks during slot synchronization at a user equipment 有权
公开(公告)号：US09847830B2
公开(公告)日：2017-12-19
申请号：US14997400
申请日：2016-01-15
申请人： QUALCOMM Incorporated
发明人： Shashank Maiya , Yi Su , Harish Venkatachari , Nate Chizgi
IPC分类号： H04B7/26 , H04W56/00 , H04B1/7075 , H04J11/00 , H04L27/26
CPC分类号： H04B7/2681 , H04B1/70755 , H04J11/0073 , H04L27/2655 , H04L27/2675 , H04W56/005
摘要： The present disclosure describes a method and an apparatus for pruning false peaks during slot synchronization at a user equipment (UE). For example, a method is provided to identify a plurality of first peaks associated with a primary-synchronization channel (P-SCH) received at the UE and a plurality of second peaks from the plurality of first peaks. Further, one or more pruning locations along with associated energy thresholds for each of the plurality of the second peaks may be determined and whether a peak of the plurality of the first peaks is a false peak is identified based on whether the peak is located at one of the one or more pruning locations of the peak and an associated energy value of the peak does not satisfy the associated energy threshold of the pruning location. Furthermore, the peak identified as the false peak is discarded.

3. 发明授权

US09730171B2 Mapping schemes for secondary synchronization signal scrambling 有权
公开(公告)号：US09730171B2
公开(公告)日：2017-08-08
申请号：US15144475
申请日：2016-05-02
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Anand Ganesh Dabak , Eko Nugroho Onggosanusi , Badri Varadarajan
IPC分类号： H04W56/00 , H04B7/26 , H04W36/00
CPC分类号： H04W56/001 , H04B7/2681 , H04W36/0016 , H04W36/0072
摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.

4. 发明申请

US20160249308A1 MAPPING SCHEMES FOR SECONDARY SYNCHRONIZATION SIGNAL SCRAMBLING 审中-公开
公开(公告)号：US20160249308A1
公开(公告)日：2016-08-25
申请号：US15144475
申请日：2016-05-02
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： ANAND GANESH DABAK , EKO NUGROHO ONGGOSANUSI , BADRI VARADARAJAN
IPC分类号： H04W56/00 , H04B7/26 , H04W36/00
CPC分类号： H04W56/001 , H04B7/2681 , H04W36/0016 , H04W36/0072
摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.

5. 发明授权

US09155056B2 Mapping schemes for secondary synchronization signal scrambling 有权
标题翻译：二次同步信号加扰的映射方案
公开(公告)号：US09155056B2
公开(公告)日：2015-10-06
申请号：US14481894
申请日：2014-09-09
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Anand Ganesh Dabak , Eko Nugroho Onggosanusi , Badri Varadaharajan
IPC分类号： H04W56/00 , H04W36/00 , H04B7/26 , H04L9/12 , H04J11/00
CPC分类号： H04W56/001 , H04B7/2681 , H04J11/0069 , H04J2011/0096 , H04L9/12 , H04L2209/80 , H04W36/0016 , H04W56/0015
摘要： Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit configured to provide a primary synchronization signal and a secondary synchronization signal having first and second segments. The transmitter also includes a secondary scrambling unit configured to provide a scrambled secondary synchronization signal, wherein scrambling agents for the first and second segments are derived from a primary synchronization sequence of the primary synchronization signal. The secondary scrambling unit is further configured to provide an additional scrambling of one of the first and second segments, wherein a second scrambling agent is derived from the remaining segment of a secondary synchronization sequence of the secondary synchronization signal. The transmitter further includes a transmit unit configured to transmit the primary synchronization signal and the scrambled secondary synchronization signal.
摘要翻译：本公开的实施例提供发射机，接收机和操作发射机和接收机的方法。在一个实施例中，发射机包括配置成提供主同步信号和具有第一和第二段的辅同步信号的同步单元。发射机还包括辅助加扰单元，其被配置为提供加扰的次同步信号，其中第一和第二段的加扰代码从主同步信号的主同步序列导出。次加扰单元还被配置为提供第一和第二段中的一个的附加加扰，其中从副同步信号的辅同步序列的剩余段导出第二加扰代码。发射机还包括被配置为发送主同步信号和加扰的次同步信号的发射单元。

6. 发明申请

US20150215880A1 DEVICES AND METHODS FOR LOCATING RECEIVED TONES IN WIRELESS COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：用于在无线通信系统中定位接收到的信号的设备和方法
公开(公告)号：US20150215880A1
公开(公告)日：2015-07-30
申请号：US14166614
申请日：2014-01-28
申请人： QUALCOMM Incorporated
发明人： Hassan Rafique , Divaydeep Sikri , Cetin Altan
IPC分类号： H04W56/00 , H04B7/26 , H04W24/08
CPC分类号： H04W56/001 , H04B1/7073 , H04B7/2681 , H04J3/0608 , H04L7/04 , H04L27/0014 , H04L27/2657 , H04L27/2663 , H04L27/2671 , H04L27/2675 , H04L27/2688 , H04W24/08
摘要： Access terminals are adapted to determine a tone location even when the tone is asymmetric. According to one example, an access terminal can obtain a plurality of samples for a received tone. The access terminal may detect which sample of the plurality of samples exhibits a maximum correlation value. The access terminal may further determine a location of the received tone based on the sample exhibiting the maximum correlation value. In some examples, the location of the received tone may be determine based on the sample exhibiting the maximum correlation value when a predicted signal-to-noise ratio (SNR) is above a predetermined threshold. Otherwise, the access terminal may determine the tone location based on a central location between a first sample with a correlation value above a predefined threshold and a first subsequent sample with a correlation value below the predefined threshold. Other aspects, embodiments, and features are also included.
摘要翻译：即使音调不对称，接入终端也适用于确定音调位置。根据一个示例，接入终端可以获得用于接收到的音调的多个样本。接入终端可以检测多个样本中的哪个样本呈现最大相关值。接入终端还可以基于呈现最大相关值的样本来确定接收到的音调的位置。在一些示例中，当预测信噪比（SNR）高于预定阈值时，可以基于显示最大相关值的样本来确定接收到的音调的位置。否则，接入终端可以基于具有高于预定义阈值的相关值的第一样本与具有低于预定阈值的相关值的第一后续样本之间的中心位置来确定音调位置。还包括其他方面，实施例和特征。

7. 发明申请

US20150189678A1 Technique for Performing a Random Access Procedure over a Radio Interface 审中-公开
标题翻译：通过无线接口执行随机接入过程的技术
公开(公告)号：US20150189678A1
公开(公告)日：2015-07-02
申请号：US14644327
申请日：2015-03-11
申请人： Telefonaktiebolaget L M Ericsson (publ)
发明人： Robert BALDEMAIR , Maria EDVARDSSON , Erik DAHLMAN , Jacobus Cornelis HAARTSEN , Stefan PARKVALL
IPC分类号： H04W74/08 , H04W72/12 , H04W72/04 , H04W56/00
CPC分类号： H04W74/0833 , H04B7/2681 , H04J3/0605 , H04W56/001 , H04W56/0045 , H04W72/0413 , H04W72/1268 , H04W74/0891
摘要： The invention relates to a technique for performing a random access procedure over a radio interface, for example between a mobile terminal and a radio base station of a mobile network. A method aspect of the invention comprises the steps of transmitting a synchronization request for synchronization information; receiving synchronization information in response to the synchronization request; and transmitting, based on at least one transmission parameter adjusted in accordance with the synchronization information, a resource request for data transmission resources.
摘要翻译：本发明涉及一种用于通过无线电接口执行随机接入过程的技术，例如在移动网络的移动终端和无线电基站之间。本发明的方法方面包括发送用于同步信息的同步请求的步骤; 响应于同步请求接收同步信息; 以及基于根据所述同步信息调整的至少一个传输参数来发送用于数据传输资源的资源请求。

8. 发明授权

US08638877B2 Methods, apparatuses and systems for selective transmission of traffic data using orthogonal sequences 有权
标题翻译：使用正交序列选择性传输交通数据的方法，装置和系统
公开(公告)号：US08638877B2
公开(公告)日：2014-01-28
申请号：US13306547
申请日：2011-11-29
申请人： James A. Proctor, Jr.
发明人： James A. Proctor, Jr.
IPC分类号： H04L27/00 , H04B1/69 , H04J11/00
CPC分类号： H04W56/001 , H04B1/70752 , H04B1/709 , H04B7/2668 , H04B7/2681 , H04B2201/70703 , H04J13/0044 , H04W56/00 , H04W56/0085
摘要： An access unit transmits a first channel, a second channel and a third channel. The first channel is an access channel and the second channel carries traffic data. The third channel is transmitted on a condition that the access unit has not allocated resources for the second channel. The access unit produces an indication for transmission on the third channel. The transmitted indication is produced by a data value of one for a duration of at least one time slot and orthogonal sequences. The indication indicates that the access unit is requesting to be allocated the second channel to transmit traffic data.
摘要翻译：接入单元发送第一信道，第二信道和第三信道。第一信道是接入信道，第二信道承载业务数据。第三信道在接入单元尚未为第二信道分配资源的条件下发送。接入单元产生用于在第三信道上传输的指示。所发送的指示由至少一个时隙和正交序列的持续时间的数据值1产生。该指示表示接入单元正在请求分配第二信道以发送业务数据。

9. 发明申请

US20130265913A1 FRAMING FOR AN ADAPTIVE MODULATION COMMUNICATION SYSTEM 有权
公开(公告)号：US20130265913A1
公开(公告)日：2013-10-10
申请号：US13903712
申请日：2013-05-28
申请人： Wi-LAN, Inc.
发明人： Kenneth L. Stanwood , Israel Jay Klein , George Lin , An Chen
IPC分类号： H04W72/04
CPC分类号： H04W72/042 , H04B7/15557 , H04B7/212 , H04B7/2615 , H04B7/2656 , H04B7/2681 , H04L1/0003 , H04L1/0009 , H04L5/16 , H04W56/0085 , H04W72/14
摘要： A system and method for mapping a combined frequency division duplexing (FDD) Time Division Multiplexing (TDM)/Time Division Multiple Access (TDMA) downlink subframe for use with half-duplex and full-duplex terminals in a communication system. Embodiments of the downlink subframe vary Forward Error Correction (FEC) types for a given modulation scheme as well as support the implementation of a smart antenna at a base station in the communication system. Embodiments of the system are also used in a TDD communication system to support the implementation of smart antennae. A scheduling algorithm allows TDM and TDMA portions of a downlink to efficiently co-exist in the same downlink subframe and simultaneously support full and half-duplex terminals.

10. 发明授权

US08503403B2 Network control of uplink transmit timing for compressed mode 有权
标题翻译：用于压缩模式的上行链路发送定时的网络控制
公开(公告)号：US08503403B2
公开(公告)日：2013-08-06
申请号：US11669542
申请日：2007-01-31
申请人： William O. Camp, Jr. , Terrence Edward Rogers , Nadi Sakir Findikli
发明人： William O. Camp, Jr. , Terrence Edward Rogers , Nadi Sakir Findikli
IPC分类号： H04B7/216 , H04J3/06
CPC分类号： H04B7/2681 , H04W56/0045
摘要： A base station measures the uplink load on an uplink channel and controls the transmit timing of one or more mobile terminals on the uplink channel based on the measurements of the uplink load. The transmit timing of the mobile terminals may be controlled by sending timing control signals to the mobile terminals over a downlink control channel. In one embodiment, the transmit timing of the uplink channel is slaved to the transmit timing on a downlink channel. In this case, the uplink timing may be controlled by adjusting the downlink transmit timing.
摘要翻译：基站测量上行链路信道上的上行链路负载，并且基于上行链路负载的测量来控制上行链路信道上的一个或多个移动终端的发送定时。可以通过在下行链路控制信道上向移动终端发送定时控制信号来控制移动终端的发送定时。在一个实施例中，上行链路信道的发送定时被切换到下行链路信道上的发送定时。在这种情况下，可以通过调整下行链路发送定时来控制上行链路定时。

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