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1. 发明申请

US20070183374A1 Neighbor-assisted handover in mobile communications systems 有权
标题翻译：移动通信系统中的邻居切换
公开(公告)号：US20070183374A1
公开(公告)日：2007-08-09
申请号：US11348208
申请日：2006-02-06
申请人： Brian Classon , Michael Kotzin , Ravi Kuchibhotla , Kevin Baum , Vijay Nangia , Philippe Sartori
发明人： Brian Classon , Michael Kotzin , Ravi Kuchibhotla , Kevin Baum , Vijay Nangia , Philippe Sartori
IPC分类号： H04Q7/24
CPC分类号： H04W36/0083 , H04W36/0055 , H04W36/36 , H04W88/04 , H04W88/06
摘要： A method is provided that comprises detecting, by a first user terminal of a wireless system, a second user terminal having wireless system information. The wireless system information has timely wireless system parameters. The timely wireless system parameters are collected from the second user terminal. The first user terminal communicates with a base station based on the wireless system parameters.
摘要翻译：提供了一种方法，包括由无线系统的第一用户终端检测具有无线系统信息的第二用户终端。无线系统信息具有及时的无线系统参数。从第二用户终端收集及时的无线系统参数。第一用户终端基于无线系统参数与基站进行通信。

2. 发明授权

US07218666B2 Method and system for transmission and frequency domain equalization for wideband CDMA system 有权
标题翻译：用于宽带CDMA系统的传输和频域均衡的方法和系统
公开(公告)号：US07218666B2
公开(公告)日：2007-05-15
申请号：US09903175
申请日：2001-07-11
申请人： Kevin Baum , Frederick W Vook , Timothy A Thomas
发明人： Kevin Baum , Frederick W Vook , Timothy A Thomas
IPC分类号： H04B1/707 , H03H7/30
CPC分类号： H04B1/7097 , H04B2201/709709 , H04J13/0048 , H04L1/0061 , H04L25/022 , H04L25/0226 , H04L25/0232 , H04L25/03159 , H04L27/2607 , H04L27/261
摘要： The invention provides a method and system for transmission and frequency domain equalization for wideband CDMA communications by providing at least one spread sequence portion, and inserting a cyclic redundancy to the spread sequence to form a transmitted baseband sequence. The invention further provides a method and system for converting a plurality of receive samples from at least one spread sequence portion into a plurality of frequency domain samples, determining a plurality of frequency domain equalization weights for the frequency domain samples, and determining a time domain signal estimate based on the frequency domain equalization weights and frequency domain samples.
摘要翻译：本发明提供一种用于宽带CDMA通信的传输和频域均衡的方法和系统，该方法和系统通过提供至少一个扩展序列部分，以及向扩展序列插入循环冗余以形成发射的基带序列。本发明还提供一种用于将多个接收样本从至少一个扩展序列部分转换成多个频域采样的方法和系统，确定频域采样的多个频域均衡权重，以及确定时域信号基于频域均衡权重和频域样本估计。

3. 发明申请

US20070041311A1 Method and apparatus for pilot signal transmission 有权
标题翻译：导频信号传输的方法和装置
公开(公告)号：US20070041311A1
公开(公告)日：2007-02-22
申请号：US11207457
申请日：2005-08-18
申请人： Kevin Baum , Brian Classon , Vijay Nangia
发明人： Kevin Baum , Brian Classon , Vijay Nangia
IPC分类号： H04J11/00
CPC分类号： H04L5/0048 , H04L5/0023 , H04L25/0226
摘要： A method and apparatus for pilot signal transmission is disclosed herein. In particular, a pilot transmission scheme is utilized where pilot sub-carrier bandwidth differs from data sub-carrier bandwidth. Because some user's data sub-carriers will no longer have the user's pilot sub-carriers adjacent to them, the set, or pattern of sub-carriers used by the pilot blocks changes at least once in a burst. Changing the pilot block pattern (the set of occupied pilot block sub-carriers) at least once in the burst serves to increase the frequency proximity of occupied data sub-carriers to occupied pilot sub-carriers in the burst.
摘要翻译：本文公开了一种用于导频信号传输的方法和装置。特别地，利用导频子载波带宽与数据副载波带宽不同的导频传输方案。因为一些用户的数据子载波将不再具有与它们相邻的用户的导频子载波，导频块使用的子载波的集合或模式在突发中至少改变一次。在突发中至少改变一次导频块模式（所占用的导频块子载波集合）用于将占用的数据子载波的频率接近度增加到突发中的占用导频子载波。

4. 发明申请

US20070036066A1 METHOD AND APPARATUS FOR PILOT SIGNAL TRANSMISSION 有权
标题翻译：引导信号传输的方法和装置
公开(公告)号：US20070036066A1
公开(公告)日：2007-02-15
申请号：US11419797
申请日：2006-05-23
申请人： Timothy Thomas , Kevin Baum , Brian Classon , Vijay Nangia
发明人： Timothy Thomas , Kevin Baum , Brian Classon , Vijay Nangia
IPC分类号： H04J11/00 , H04B3/10
CPC分类号： H04B7/0678 , H04L5/0023 , H04L5/0048
摘要： A pilot transmission scheme is presented where during a first OFDM symbol period a first pilot sequence is transmitted over a first multiple sub-carriers on a first group of antennas. During a second OFDM symbol period, a second pilot sequence is transmitted over a second multiple sub-carriers on a second group of antennas. The first and the second groups of antennas only transmit one pilot sequence every subframe of M OFDM symbol periods.
摘要翻译：提出了一种导频传输方案，其中在第一OFDM符号周期期间，在第一组天线上的第一多个子载波上发送第一导频序列。在第二OFDM符号周期期间，在第二组天线上的第二多个子载波上发送第二导频序列。第一组和第二组天线只在M个OFDM符号周期的每个子帧上发送一个导频序列。

5. 发明申请

US20060009227A1 Method and apparatus for reference signal selection in a cellular system 有权
标题翻译：用于蜂窝系统中参考信号选择的方法和装置
公开(公告)号：US20060009227A1
公开(公告)日：2006-01-12
申请号：US11150953
申请日：2005-06-13
申请人： Mark Cudak , Kevin Baum , Frederick Vook
发明人： Mark Cudak , Kevin Baum , Frederick Vook
IPC分类号： H04Q7/20
CPC分类号： H04W48/08 , H04L5/0007 , H04L5/005 , H04L27/2613 , H04L27/2656 , H04W16/06 , H04W16/18
摘要： In a wireless communication system, a method and apparatus for reference signal selection is disclosed. In accordance with the preferred embodiment of the present invention, a first reference signal in a first cell is pseudo-randomly selected from a predetermined limited set of reference signals for transmission on a first channel resource. A second reference signal in the cell is pseudo-randomly selected from the predetermined limited set of reference signals for transmission on a second channel resource, where the predetermined limited set of reference signals is common among the first cell and at least a second cell.
摘要翻译：在无线通信系统中，公开了一种用于参考信号选择的方法和装置。根据本发明的优选实施例，第一小区中的第一参考信号从用于在第一信道资源上传输的预定有限的参考信号集中伪随机地选择。小区中的第二参考信号从用于在第二信道资源上传输的预定的有限参考信号集中被伪随机地选择，其中预定的有限参考信号集合在第一小区和至少第二小区中是共同的。

6. 发明申请

US20050084000A1 Method and apparatus for transmission and reception within an OFDM communication system 有权
标题翻译：用于OFDM通信系统内的发送和接收的方法和装置
公开(公告)号：US20050084000A1
公开(公告)日：2005-04-21
申请号：US10945692
申请日：2004-09-21
申请人： Thomas Krauss , Kevin Baum , Vijay Nangia
发明人： Thomas Krauss , Kevin Baum , Vijay Nangia
IPC分类号： H04L5/02 , H04L27/26 , H04B1/707 , H04L27/06
CPC分类号： H04L5/0021 , H04B7/068 , H04L5/0026 , H04L25/0204 , H04L25/0228 , H04L25/0232 , H04L27/2613
摘要： In an OFDM system the same Walsh code is used at the same time for a plurality of transmitters. The multiple transmitters can be from the same, or different devices (e.g., different base stations on the downlink, different terminals on the uplink). Each subcarrier/antenna combination will share a similar pilot Walsh code, except for the fact that the scrambled spread pilot signals will be phase shifted on some subcarriers of some antennas, based on the subcarrier/antenna combination.
摘要翻译：在OFDM系统中，相同的沃尔什码同时用于多个发射机。多个发射机可以来自相同或不同的设备（例如，下行链路上的不同基站，上行链路上的不同终端）。每个子载波/天线组合将共享类似的导频沃尔什码，除了基于副载波/天线组合，扰频扩频导频信号将在一些天线的某些子载波上相移的事实。

7. 发明申请

US20070183391A1 Method and apparatus for interleaving sequence elements of an OFDMA synchronization channel 有权
标题翻译：用于交织OFDMA同步信道的序列元素的方法和装置
公开(公告)号：US20070183391A1
公开(公告)日：2007-08-09
申请号：US11351275
申请日：2006-02-08
申请人： Hidenori Akita , Kevin Baum , Brian Classon , Masaya Fukuta , Hiroshi Hayashi , Vijay Nangia , Robert Love , Kenneth Stewart
发明人： Hidenori Akita , Kevin Baum , Brian Classon , Masaya Fukuta , Hiroshi Hayashi , Vijay Nangia , Robert Love , Kenneth Stewart
IPC分类号： H04J3/06
CPC分类号： H04L5/0007 , H04L1/1829 , H04L5/0023 , H04L5/0048 , H04L27/2613 , H04L27/262 , H04L27/2655
摘要： A method and apparatus is provided for transmitting an orthogonal frequency domain multiple access (OFDMA) signal including a synchronization channel signal transmitted including a plurality of sequence elements intereleaved in time and frequency (610, 640). The synchronization channel signal sequence elements enable an initial acquisition and cell search method with low computational load by providing predetermined time domain symmetry (702, 704) for common sequence elements in OFDMA symbol periods (620, 660) for OFDMA symbol timing detection and frequency error detection in an OFDMA system supporting multiple system bandwidths, both synchronized and un-synchronized systems, a large cell index and an OFDMA symbol structure with both short and long cyclic prefix length.
摘要翻译：提供了一种用于发送包括发送的同步信道信号的正交频域多址（OFDMA）信号的方法和装置，包括在时间和频率上互相嵌合的多个序列元素（610,640）。同步信道信号序列元件通过为OFDMA符号周期（620,660）中的公共序列元素提供用于OFDMA符号定时检测和频率误差的预定时域对称性（702,704），能够实现具有低计算负荷的初始采集和小区搜索方法支持多系统带宽（同步和非同步系统）的OFDMA系统中的检测，具有短循环前缀长度和长循环前缀长度的大小区索引和OFDMA符号结构。

8. 发明申请

US20070091866A1 Method and System for Multirate Multiuser Modulation 有权
标题翻译：多速率多用户调制方法与系统
公开(公告)号：US20070091866A1
公开(公告)日：2007-04-26
申请号：US11561481
申请日：2006-11-20
申请人： Vijay Nangia , Kevin Baum , Karthik Ramasubramanian
发明人： Vijay Nangia , Kevin Baum , Karthik Ramasubramanian
IPC分类号： H04J1/00 , H04B7/208
CPC分类号： H04J13/004 , H04B2201/70703 , H04J13/18 , H04L5/023
摘要： A multi-rate interleaved frequency division multiple access (IFDMA) modulation scheme permits users to transmit at different data rates or to vary their data rates while providing frequency diversity and preserving low peak-to-average power ratios and orthogonality between user data rates. The modulation scheme allows user-specific data block and repetition sizes, as well as user-specific modulation codes. Code assignment rules are provided for maintaining orthogonality between the different user data rates. Block and phase ramp modulation codes can be used. Asynchronous transmissions by users are supported by ensuring that the length of the cyclic extension is sufficiently long to tolerate worst case relative signal arrival delays between users and the channel pulse response duration over the communication medium. The modulation scheme can be employed in wireless communication systems, such as cellular or paging systems.
摘要翻译：多速率交织的频分多址（IFDMA）调制方案允许用户以不同的数据速率进行传输或改变其数据速率，同时提供频率分集并保持低的峰值与平均功率比和用户数据速率之间的正交性。调制方案允许用户特定的数据块和重复大小，以及用户特定的调制码。提供代码分配规则用于维持不同用户数据速率之间的正交性。可以使用块和相位斜坡调制码。通过确保循环扩展的长度足够长以容忍用户之间的最差情况相对信号到达延迟和通信介质上的信道脉冲响应持续时间来支持用户的异步传输。调制方案可用于诸如蜂窝或寻呼系统的无线通信系统中。

9. 发明申请

US20070058595A1 METHOD AND APPARATUS FOR REDUCING ROUND TRIP LATENCY AND OVERHEAD WITHIN A COMMUNICATION SYSTEM 审中-公开
标题翻译：用于减少通信系统中的循环延迟和覆盖的方法和装置
公开(公告)号：US20070058595A1
公开(公告)日：2007-03-15
申请号：US11276981
申请日：2006-03-20
申请人： Brian Classon , Kevin Baum , Amitava Ghosh , Robert Love , Vijay Nangia , Kenneth Stewart
发明人： Brian Classon , Kevin Baum , Amitava Ghosh , Robert Love , Vijay Nangia , Kenneth Stewart
IPC分类号： H04B7/212
CPC分类号： H04L1/188 , H04L1/1812 , H04L1/1822
摘要： During operation radio frames are divided into a plurality of subframes. Data is transmitted over the radio frames within a plurality of subframes, and having a frame duration selected from two or more possible frame durations.
摘要翻译：在操作期间，无线电帧被分成多个子帧。数据通过多个子帧内的无线电帧发送，并且具有从两个或更多个可能的帧持续时间中选择的帧持续时间。

10. 发明申请

US20060067277A1 Method and apparatus for MIMO transmission optimized for successive cancellation receivers 有权
标题翻译：用于连续取消接收机优化的MIMO传输的方法和装置
公开(公告)号：US20060067277A1
公开(公告)日：2006-03-30
申请号：US11209308
申请日：2005-08-23
申请人： Timothy Thomas , Kevin Baum , Frederick Vook , Xiangyang Zhuang
发明人： Timothy Thomas , Kevin Baum , Frederick Vook , Xiangyang Zhuang
IPC分类号： H04Q7/00
CPC分类号： H04B7/0634 , H04B7/04 , H04B7/0636 , H04B7/0639 , H04B7/066 , H04B7/0691 , H04L27/2601
摘要： A method for communicating a plurality of data streams between a transmitting device with multiple transmit antennas and a receiving device, is disclosed. The method comprises determining a list consisting of a subset of the multiple transmit antennas on which the transmitting device will transmit data, determining a set of power weightings, providing the set of power weightings and the list of the subset of the multiple transmit antennas to the transmitting device, weighting a plurality of data streams by the power weightings, and transmitting the power weighted data streams on the subset of the multiple transmit antennas to the receiving device. Another aspect of the invention comprises maintaining a codebook consisting of a plurality of transmit weight vectors at both the transmitting device and the receiving device. The method also comprises determining a list consisting of a subset of the plurality of transmit weight vectors which to use for transmitting the multiple data streams, determining a set of power weightings to be use for each data stream, providing the set of power weightings and the list of the subset of the plurality of transmit weight vectors to the transmitting device, and weighting the data streams by the power weightings and beamforming the data streams with the subset of the plurality of transmit weight vectors.
摘要翻译：公开了一种在具有多个发射天线的发射装置与接收装置之间传送多个数据流的方法。该方法包括确定由发射设备将在其上发射数据的多个发射天线的子集组成的列表，确定一组功率加权，提供该组功率加权和多个发射天线的子集的列表到发送设备，通过功率加权对多个数据流进行加权，以及将多个发射天线的子集上的功率加权数据流发送到接收设备。本发明的另一方面包括在发送设备和接收设备两者处维护由多个发送权重向量组成的码本。该方法还包括确定由用于发送多个数据流的多个发射权重向量的子集组成的列表，确定要为每个数据流使用的一组功率权重，提供该组功率权重和将多个发射权重向量的子集的列表发送到发射装置，以及通过功率加权对数据流进行加权，并且利用多个发射权重向量的子集对数据流进行波束形成。

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