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1. 发明申请

WO2008134682A1 UPLINK SYNCHRONIZATION MAINTENANCE PRINCIPLES IN WIRELESS NETWORKS 审中-公开
标题翻译：无线网络中的UPLINK同步维护原则
公开(公告)号：WO2008134682A1
公开(公告)日：2008-11-06
申请号：PCT/US2008/061926
申请日：2008-04-30
申请人： TEXAS INSTRUMENTS INCORPORATED , BERTRAND, Pierre , MUHAREMOVIC, Tarik , SHEN, Zukang
发明人： BERTRAND, Pierre , MUHAREMOVIC, Tarik , SHEN, Zukang
IPC分类号： H04L7/02 , H04B7/005 , H04B7/26
CPC分类号： H04J3/06 , H04W56/0005 , H04W56/0045
摘要： A cell within cellular network includes user equipments (UEs) that transmit data to a base station (eNB). UEs are synchronized to the eNB upon entry to the cell. If a particular UE has data to transmit, it will be placed in a connected state and scheduled for transmission. Over a period of time, not all of the UEs will have data to transmit. The UEs are tracked (402) as a scheduled portion and an unscheduled portion, wherein a UE is included in the scheduled portion in response to receiving a scheduling request from the UE. Synchronization is maintained (404) between the eNB and each UE in the scheduled portion by sending a timing adjustment (TA) command if needed in response to receiving a scheduled transmission from each respective UE in the scheduled portion; Synchronization is maintained (406) between the eNB and each UE in the unscheduled portion by allocating a periodic reference signal (sync-RS) to each UE in the unscheduled portion and by sending a respective timing adjustment (TA) command if needed to each respective UE in the unscheduled portion in response to a respective sync-RS received from each UE in the unscheduled portion.
摘要翻译：蜂窝网络内的小区包括向基站（eNB）发送数据的用户设备（UE）。在进入小区时，UE与eNB同步。如果特定的UE具有要发送的数据，则它将处于连接状态并被调度以进行传输。在一段时间内，不是所有的UE都将具有要发送的数据。 UE被跟踪（402）作为调度部分和非调度部分，其中响应于从UE接收到调度请求而将UE包括在调度部分中。如果需要响应于从调度部分中的每个相应UE接收到调度的传输，则通过发送定时调整（TA）命令来在所述调度部分中的eNB与每个UE之间维持（404）同步; 通过向非调度部分中的每个UE分配周期性参考信号（sync-RS），并且如果需要，则通过发送相应的定时调整（TA）命令来分配给每个相应的定时调整（TA）命令，从而在eNB与每个UE之间在未调度部分中保持同步（406） UE响应于从非预定部分中的每个UE接收到的相应同步RS而在未调度部分中。

2. 发明申请

WO2008157826A1 SELECTION OF ORTHOGONAL COVERING SEQUENCES AND PHASE RAMPED SEQUENCES 审中-公开
标题翻译：选择正交覆盖序列和相位序列
公开(公告)号：WO2008157826A1
公开(公告)日：2008-12-24
申请号：PCT/US2008/067874
申请日：2008-06-23
申请人： TEXAS INSTRUMENTS INCORPORATED , SHEN, Zukang , MUHAREMOVIC, Tarik , BERTRAND, Pierre
发明人： SHEN, Zukang , MUHAREMOVIC, Tarik , BERTRAND, Pierre
IPC分类号： H04B7/26
CPC分类号： H04L27/2613 , H04J13/00 , H04J13/16 , H04L5/0007 , H04L5/0053
摘要： A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network (100) is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. In other embodiments of the invention, the choices of the first sequence and second sequence in a time-frequency resource is arranged such that interference is mitigated. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.
摘要翻译：信息从次级到主节点的传输发生在多个N个逻辑时间段内。使用第一和第二序列获得在无线网络（100）中从次级到主节点的传输。本发明的实施例通过限制第一序列的选择来减轻干扰。因此，在本发明的一个实施例中，第一序列选自M个严格小于N的M序列集合。为了适应高速用户，受限集合包含一对序列，其元素乘积是镜像对称的。在本发明的其他实施例中，时间 - 频率资源中的第一序列和第二序列的选择被布置成使得可以减轻干扰。从第一序列的整个第二序列和第K个元素获得用于第K个逻辑持续时间的传输分量。

3. 发明申请

WO2008052041A3 RANDOM ACCESS CHANNEL DESIGN WITH HYBRID CDM AND FDM MULTIPLEXING OF ACCESS 审中-公开
公开(公告)号：WO2008052041A3
公开(公告)日：2008-05-02
申请号：PCT/US2007/082360
申请日：2007-10-24
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , BERTRAND, Pierre , JIANG, Jing , SHEN, Zukang
发明人： MUHAREMOVIC, Tarik , BERTRAND, Pierre , JIANG, Jing , SHEN, Zukang
IPC分类号： H04K1/10
摘要： A method of establishing communications with a remote receiver that receives data signals (612, 614) from other transmitters is disclosed. The method includes producing a preamble (602) and producing guard bands between the preamble and the data signals. The preamble is transmitted to the remote receiver.

4. 发明申请

WO2009023692A3 UPLINK REFERENCE SIGNAL SEQUENCE ASSIGNMENTS IN WIRELESS NETWORKS 审中-公开
公开(公告)号：WO2009023692A3
公开(公告)日：2009-02-19
申请号：PCT/US2008/072958
申请日：2008-08-13
申请人： TEXAS INSTRUMENTS INCORPORATED , BERTRAND, Pierre , MUHAREMOVIC, Tarik , SHEN, Zukang
发明人： BERTRAND, Pierre , MUHAREMOVIC, Tarik , SHEN, Zukang
IPC分类号： H04B7/26
摘要： Transmission of sequences in wireless networks from a user equipment (UE) includes various types of reference signals, such as a sounding reference signal (SRS) and a physical uplink control channel (PUCCH) symbol. The UE receives (402) an indication of a reference signal sequence group number u , wherein physical uplink control channel (PUCCH) sequences are divided into groups having at least one sequence each and wherein sounding reference signal (SRS) sequences are divided into groups having at least one sequence each. The UE produces (414) a sequence from an SRS sequence group with the sequence group number u when an SRS is to be transmitted and produces (412) a sequence from a PUCCH sequence group with the sequence group number u when a PUCCH symbol is to be transmitted. The UE produces (416) a transmission signal using the produced sequence.

5. 发明申请

WO2008151228A3 ALLOCATION OF BLOCK SPREADING SEQUENCES 审中-公开
公开(公告)号：WO2008151228A3
公开(公告)日：2008-12-11
申请号：PCT/US2008/065753
申请日：2008-06-04
申请人： TEXAS INSTRUMENTS INCORPORATED , SHEN, Zukang , MUHAREMOVIC, Tarik , BERTRAND, Pierre
发明人： SHEN, Zukang , MUHAREMOVIC, Tarik , BERTRAND, Pierre
IPC分类号： H04J11/00 , H04B1/69
摘要： A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network (100) is obtained using a first and a second sequence. Embodiments of the present invention mitigate interference by restricting the choice of the first sequence. Thus, in an embodiment of the invention, the first sequence is selected from a set of M sequences wherein M is strictly less than N. In order to accommodate high-velocity (112) users, the restricted set contains a pair of sequences whose element-wise product is mirror symmetric. A transmission component for K-th logical time duration is obtained from the entire second sequence and K-th element of the first sequence.

6. 发明申请

WO2008103658A2 TRANSMISSION OF PRIORITIZED INFORMATION IN THE PROXIMITY OF REFERENCED SIGNALS 审中-公开
标题翻译：参考信号接近的优先信息传输
公开(公告)号：WO2008103658A2
公开(公告)日：2008-08-28
申请号：PCT/US2008/054282
申请日：2008-02-19
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
发明人： MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
IPC分类号： H04Q7/30
CPC分类号： H04L1/0086 , H04L1/0081 , H04L2001/125 , H04W72/14
摘要： Transmission of information in a wireless network is performed by allocating a channel from a transmitter to a receiver. The channel has at least one time slot with each time slot having a plurality of symbols. Each slot contains at least one reference symbol (RS). As information becomes available for transmission, it is classified as prioritized information (PI) and other information (1304). Digital samples are produced using an element of prioritized information (1306). One or more priority symbols are generated using the digital samples (1308). Other symbols are generated using the other data (1310). Priority symbols are transmitted on the channel in a manner that separation of priority symbol(s) and a reference symbol does not exceed a time duration of one symbol. The other symbols are transmitted in available locations (1312).
摘要翻译：通过从发射机向接收机分配信道来执行无线网络中的信息传输。该信道具有至少一个时隙，每个时隙具有多个符号。每个插槽至少包含一个参考符号（RS）。随着信息可用于传输，它被分类为优先信息（PI）和其他信息（1304）。数字样本是使用优先信息元素生成的（1306）。使用数字样本生成一个或多个优先符号（1308）。其他符号使用其他数据生成（1310）。优先符号以优先符号和参考符号的分离不超过一个符号的持续时间的方式在信道上传送。其他符号在可用位置传输（1312）。

7. 发明申请

WO2009015092A1 TRANSMISSION OF MULTIPLE INFORMATION ELEMENTS IN MULTIPLE CHANNELS 审中-公开
标题翻译：在多个通道中传输多个信息元素
公开(公告)号：WO2009015092A1
公开(公告)日：2009-01-29
申请号：PCT/US2008/070657
申请日：2008-07-21
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
发明人： MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
IPC分类号： H04B7/26
CPC分类号： H04W72/02 , H04L1/1671 , H04W72/042
摘要： A transmission of information from a secondary to a primary node occurs in a plurality of N logical time durations. The transmission from the secondary to primary node in a wireless network (100) is performed by first receiving an allocation of M>1 reverse link channels for transmission of N>0 information elements. N information elements are produced. A group of K (possibly only one) reverse link channels is selected from the M allocated reverse link channels, using at least one of the N produced information elements, wherein the group of K reverse link channels comprises at least one channel, such that 0
摘要翻译：信息从次级到主节点的传输发生在多个N个逻辑时间段内。通过首先接收用于传输N≥0个信息元素的M> 1个反向链路信道的分配来执行从无线网络（100）中的次要到主节点的传输。生成N个信息元素。使用N个产生的信息元素中的至少一个从M个分配的反向链路信道中选择一组K个（可能只有一个）反向链路信道，其中该K个反向链路信道的组包括至少一个信道，使得0

8. 发明申请

WO2008036977A2 TRANSMISSION OF ACK/NACK BITS AND THEIR EMBEDDING IN THE REFERENCE SIGNAL 审中-公开
标题翻译： ACK / NACK位的传输及其参考信号中的嵌入
公开(公告)号：WO2008036977A2
公开(公告)日：2008-03-27
申请号：PCT/US2007/079323
申请日：2007-09-24
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
发明人： MUHAREMOVIC, Tarik , SHEN, Zukang , BERTRAND, Pierre
IPC分类号： H04L27/28
CPC分类号： H04L27/2605 , H04L1/1854 , H04L5/0007 , H04L5/0048 , H04L5/0053 , H04L27/2613
摘要： Transmitting an ACK/NACK response in a wireless cellular network by mapping the data value into a cyclic shifted version of a reference signal. A subframe is formed (704) with a plurality of symbols with certain symbols designated as reference signal (RS) symbols. The receiver and transmitter both know when an ACK/NACK response is expected. If an ACK/NACK response is not expected (706), then an RS is inserted (708) in the duration of symbols designated as RS symbols. If an ACK/NACK response is expected, then the ACK/NACK response is embedded (710) in one or more of the symbols designated as RS symbols. The subframe is transmitted (712) to a receiver, and the receiver can determine the ACK/NACK value in the RS symbol, if present, and also use the RS symbol for coherent demodulation of a CQI (channel quality indicator) or data.
摘要翻译：通过将数据值映射到参考信号的循环移位版本来在无线蜂窝网络中发送ACK / NACK响应。用具有指定为参考信号（RS）符号的某些符号的多个符号形成（704）子帧。接收机和发射机都知道何时预期ACK / NACK响应。如果不期望ACK / NACK响应（706），则在指定为RS符号的符号的持续时间内插入RS（708）。如果期望ACK / NACK响应，则将ACK / NACK响应嵌入（710）在被指定为RS符号的一个或多个符号中。子帧被发送（712）到接收机，并且接收机可以确定RS符号（如果存在）中的ACK / NACK值，并且还使用RS符号来进行CQI（信道质量指示符）或数据的相干解调。

9. 发明申请

WO2009021244A2 TRANSMISSION USING NESTED OFDMA 审中-公开
标题翻译：传输使用嵌套OFDMA
公开(公告)号：WO2009021244A2
公开(公告)日：2009-02-12
申请号：PCT/US2008/072834
申请日：2008-08-11
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , SHEN, Zukang , JIANG, Jing
发明人： MUHAREMOVIC, Tarik , SHEN, Zukang , JIANG, Jing
IPC分类号： H04B7/26 , H04L27/26
CPC分类号： H04L27/2602 , H04L5/0044 , H04L5/0048
摘要： A transmission of information within a wireless cellular network may include a first and second group of samples. A first group (302b) of samples is created comprising at least a first (302a) and a last (402a) subgroup, wherein the last subgroup is same as the first subgroup. A second group (302d) of samples is created. A transformed set of samples is produced by jointly transforming the created first and second group with a discrete Fourier transform (DFT). The transformed set of samples is expanded to produce an expanded set, and the expanded set is transformed with an inverse discrete Fourier transform (IDFT) to produce an OFDM symbol with a fractional payload. The first group of samples is a reference signal (RS), which is known to the receiver before the transmission occurs, while the second group of samples is information data.
摘要翻译：在无线蜂窝网络内的信息传输可以包括第一组样本和第二组样本。创建包括至少第一（302a）和最后（402a）子组的第一组样品（302b），其中最后一个子组与第一子组相同。样本的第二组（302d）被创建。通过用离散傅立叶变换（DFT）联合变换所创建的第一组和第二组来产生经变换的样本集。变换的采样集合被扩展以产生扩展集合，并且利用逆离散傅立叶变换（IDFT）来变换扩展集合以产生具有分数负载的OFDM符号。第一组样本是参考信号（RS），其在传输发生之前是接收机已知的，而第二组样本是信息数据。

10. 发明申请

WO2007127902A2 METHODS AND APPARATUS TO ALLOCATE REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEMS 审中-公开
标题翻译：在无线通信系统中分配参考信号的方法和装置
公开(公告)号：WO2007127902A2
公开(公告)日：2007-11-08
申请号：PCT/US2007/067598
申请日：2007-04-27
申请人： TEXAS INSTRUMENTS INCORPORATED , MUHAREMOVIC, Tarik , SHEN, Zukang
发明人： MUHAREMOVIC, Tarik , SHEN, Zukang
IPC分类号： H04B1/00
CPC分类号： H04L12/66 , H04J13/0062 , H04J13/14 , H04L5/0007 , H04L5/0016 , H04L5/0026 , H04L25/0224 , H04L25/0226 , H04L25/0228 , H04L27/2613 , H04W16/18 , H04W52/223
摘要： Methods and apparatus to allocate reference signals in wireless communication systems are disclosed. A disclosed example apparatus comprises a reference signal generator (501) to generate a reference sequence (505) based on a parameter assigned to a wireless region, wherein the parameter specifies a first reference sequence to be transmitted by a first device of the wireless region during a first time interval, the first reference sequence being different from a second reference sequence assigned to a second device of a second wireless region adjacent to the first wireless region. The reference sequence generator comprises a cyclic shift selector (503) to select a cyclic shift for the first time interval based on the parameter and a cyclic shifter (506) to cyclically shift the first reference signal based on the selected cyclic shift. The example apparatus further comprises a transmit adapter (510) to transmit the cyclically shifted first reference sequence.
摘要翻译：公开了在无线通信系统中分配参考信号的方法和装置。所公开的示例性装置包括参考信号发生器（501），用于基于分配给无线区域的参数来生成参考序列（505），其中参数指定要由无线区域的第一设备发送的第一参考序列第一时间间隔，第一参考序列不同于分配给与第一无线区域相邻的第二无线区域的第二设备的第二参考序列。参考序列发生器包括循环移位选择器（503），用于基于参数选择第一时间间隔的循环移位和循环移位器（506），以基于所选择的循环移位循环移位第一参考信号。该示例设备还包括用于发送循环移位的第一参考序列的发送适配器（510）。

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