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31. 发明申请

WO2009074880A2 RANK ADAPTATION FOR AN OPEN LOOP MULTI-ANTENNA MODE OF WIRELESS COMMUNICATION 审中-公开
标题翻译：用于无线通信的开环多天线模式的RANK适配
公开(公告)号：WO2009074880A2
公开(公告)日：2009-06-18
申请号：PCT/IB2008/003841
申请日：2008-10-02
申请人： NORTEL NETWORKS LIMITED , XU, Hua , WU, Jianming , MA, Jianglei , JIA, Ming , BALIGH, Mohammadhadi , ZHU, Peiying , TONG, Wen
发明人： XU, Hua , WU, Jianming , MA, Jianglei , JIA, Ming , BALIGH, Mohammadhadi , ZHU, Peiying , TONG, Wen
IPC分类号： H04W28/18 , H04W72/06
CPC分类号： H04B7/0689 , H04B7/063 , H04B7/0632
摘要： To perform rank adaptation for a mobile station in a wireless network, it is determined whether the mobile station is fast moving. In response to determining that the mobile station is fast moving, an open loop multi-antenna mode is selected to perform wireless communication between the mobile station and a base station. Also, selection is made from among plural ranks for the wireless communication according to the open loop multi-antenna mode between the mobile station and the base station.
摘要翻译：为了对无线网络中的移动台执行秩调整，确定移动站是否快速移动。响应于确定移动台正在快速移动，选择开环多天线模式来执行移动台和基站之间的无线通信。此外，根据移动台和基站之间的开环多天线模式，从用于无线通信的多个等级中进行选择。

32. 发明申请

WO2007022628A1 ADAPTIVE TWO-DIMENSIONAL CHANNEL INTERPOLATION 审中-公开
标题翻译：自适应二维通道插值
公开(公告)号：WO2007022628A1
公开(公告)日：2007-03-01
申请号：PCT/CA2006/001380
申请日：2006-08-22
申请人： NORTEL NETWORKS LIMITED , MA, Jianglei , JIA, Ming , XU, Hua , TONG, Wen , ZHU, Peiying , YU, Dong-Sheng , ZHANG, Hang
发明人： MA, Jianglei , JIA, Ming , XU, Hua , TONG, Wen , ZHU, Peiying , YU, Dong-Sheng , ZHANG, Hang
IPC分类号： H04J11/00 , H04B7/208 , H04B1/76
CPC分类号： H04L27/2611 , H04B7/06 , H04B7/08 , H04L5/0007 , H04L5/0023 , H04L25/0226 , H04L25/0232 , H04L27/2626 , H04L27/2647
摘要： A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
摘要翻译：一种用于改善OFDM通信系统内的信道估计的方法和装置。 OFDM中的信道估计通常借助于导频符号来执行。导频符号通常在时间和频率上间隔开。将导频符号插入的频率和时间的集合称为导频模式。在一些情况下，导频图案是对角线形格子，规则的或不规则的。该方法首先在较大相干性（时间或频率）的方向内插。使用这些测量，导频符号在更快变化方向上的密度将增加，从而改善信道估计而不增加开销。因此，第一内插步骤的结果然后可以用于辅助尺寸较小的相干性（时间或频率）的内插。

33. 发明申请

WO2008022449A1 MULTI-ANTENNA SCHEDULING SYSTEM AND METHOD 审中-公开
标题翻译：多天线调度系统及方法
公开(公告)号：WO2008022449A1
公开(公告)日：2008-02-28
申请号：PCT/CA2007/001464
申请日：2007-08-22
申请人： NORTEL NETWORKS LIMITED , JIA, Ming , MA, Jianglei , WU, Jianming , ZHU, Peiying , TONG, Wen
发明人： JIA, Ming , MA, Jianglei , WU, Jianming , ZHU, Peiying , TONG, Wen
IPC分类号： H04B7/02 , H04B15/00 , H04B7/04 , H04Q7/36
CPC分类号： H04W72/082 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0632 , H04W72/1231
摘要： A wireless communication method and system using virtual MIMO ("V-MIMO") are provided. Post processing signal to interference and noise ratios ("SINR") for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios ("SINR") for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.
摘要翻译：提供了一种使用虚拟MIMO（“V-MIMO”）的无线通信方法和系统。估计与排列为V-MIMO组的多个移动终端对应的多个信号的后处理信号与干扰和噪声比（“SINR”）。选择具有最高后处理SINR的多个移动终端中的一个。安排所选移动终端的无线通信。对应于所选移动终端的信号被取消。重新估计对应于其余移动终端的信号的后处理信号与干扰和噪声比（“SINR”）。选择具有最高后处理SINR的剩余移动终端中的一个。调度所选择的剩余移动终端的无线通信。

34. 发明申请

WO2007124566A1 ADAPTIVE TRANSMISSION SYSTEMS AND METHODS 审中-公开
标题翻译：自适应传输系统和方法
公开(公告)号：WO2007124566A1
公开(公告)日：2007-11-08
申请号：PCT/CA2007/000644
申请日：2007-04-19
申请人： NORTEL NETWORKS LIMITED , MA, Jianglei , JIA, Ming , WU, Jianming , ZHU, Peiying , TONG, Wen , LE STRAT, Evelyne , BOUMENDIL, Sarah , ABDI, Moussa
发明人： MA, Jianglei , JIA, Ming , WU, Jianming , ZHU, Peiying , TONG, Wen , LE STRAT, Evelyne , BOUMENDIL, Sarah , ABDI, Moussa
IPC分类号： H04B7/04 , H04B7/06 , H04B7/08
CPC分类号： H04B7/0689 , H04B7/0452 , H04B7/061 , H04B7/068 , H04B7/0697
摘要： Abstract Spatial multiplexing and transmit diversity can improve the capacity of a wireless communication system. The system and method adapts communication schemes for communication systems with multiple antennas utilizing at least two transmission modes. The at least two transmission modes can, but are not necessarily, used for uplink communications. The two transmission modes may be chosen from the group consisting of a single antenna mode, a diversity mode a spatial multiplexed mode and a mixed diversity and spatial multiplexed mode. The at least two transmission modes may involve adaptation among multiple transmitters. At least one receiver may indicate a transmission mode to be used by a transmitter for a subsequent transmission. A transmitter may determine a transmission mode to be used for a subsequent transmission. The transmission mode can be based on channel sounding.
摘要翻译：摘要空间复用和发射分集可以提高无线通信系统的容量。该系统和方法利用至少两种传输模式来适应具有多个天线的通信系统的通信方案。至少两种传输模式可以但不一定用于上行链路通信。两种传输模式可以从由单天线模式，分集模式，空间复用模式和混合分集和空间复用模式组成的组中选择。至少两个传输模式可以涉及多个发射机之间的适配。至少一个接收机可以指示要由发射机用于后续传输的传输模式。发射机可以确定要用于后续传输的传输模式。传输模式可以基于通道探测。

35. 发明申请

WO2007106980A1 CLOSED-LOOP MIMO SYSTEMS AND METHODS 审中-公开
标题翻译：闭环MIMO系统和方法
公开(公告)号：WO2007106980A1
公开(公告)日：2007-09-27
申请号：PCT/CA2007/000414
申请日：2007-03-19
申请人： NORTEL NETWORKS LIMITED , JIA, Ming , MA, Jianglei , TONG, Wen , ZHU, Peiying
发明人： JIA, Ming , MA, Jianglei , TONG, Wen , ZHU, Peiying
IPC分类号： H04B7/04 , H04B7/005 , H04B7/208 , H04Q7/20
CPC分类号： H04L5/0048 , H04B7/0417 , H04B7/0456 , H04B7/0634 , H04B7/0639 , H04L5/14 , H04L25/0204 , H04L25/0224 , H04L25/0242 , H04L25/03343 , H04L27/2601 , H04L27/2613 , H04L2025/03426 , H04L2025/03802
摘要： Methods, devices and systems are provided for transmitting and receiving MIMO signals. Transmitting of the MIMO signals involves pre-coding each of at least two data symbols using a respective pre-coding codeword to preclude a corresponding plurality of pre-coded data symbols. A respective signal is transmitted from each of a plurality of antennas, the respective signal including one of the pre-coded signals and at least one pilot for use in channel estimation. The signals collectively further include at least one beacon pilot vector consisting of a respective beacon pilot per antenna, the beacon pilot vector containing contents known to a receiver for use by the receiver in determining the codeword used to pre-code the at least one data signal. Receiving of the MIMO signals involves receiving a MIMO signal containing data symbols pre-coded with a codeword. The MIMO signal includes pilots, and including at least one beacon pilot vector containing contents known to a receiver/ each beacon pilot vector containing one symbol from each transmit antenna. Processing is performed on the at least one beacon pilot vector to determine which codeword was used to pre-code the data symbols.
摘要翻译：提供了发送和接收MIMO信号的方法，设备和系统。 MIMO信号的发送涉及使用相应的预编码码字预编码至少两个数据符号中的每一个，以排除对应的多个预编码数据符号。相应的信号从多个天线中的每一个发送，各个信号包括一个预编码信号和至少一个导频，用于信道估计。信号集体地进一步包括由每个天线的每个信标导频组成的至少一个信标导频向量，信标导频向量包含接收机已知的内容，以供接收机在确定用于对该至少一个数据信号进行预编码的码字时使用。接收MIMO信号涉及接收包含用码字预编码的数据符号的MIMO信号。 MIMO信号包括导频，并且包括至少一个信标导频向量，其包含每个发射天线包含一个符号的接收机/每个信标导频向量已知的内容。对至少一个信标导频向量执行处理，以确定哪个码字用于对数据符号进行预编码。

36. 发明申请

WO2007012193A1 PILOTS FOR FREQUENCY DIVISION MULTIPLE ACCESS COMMUNICATIONS 审中-公开
标题翻译：用于频段多路访问通信的PILOTS
公开(公告)号：WO2007012193A1
公开(公告)日：2007-02-01
申请号：PCT/CA2006/001241
申请日：2006-07-27
申请人： NORTEL NETWORKS LIMITED , MA, Jianglei , JIA, Ming , TONG, Wen , ZHU, Peiying , XU, Hua , ABDI, Moussa , LE STRAT, Evelyne , BOUMENDIL, Sarah
发明人： MA, Jianglei , JIA, Ming , TONG, Wen , ZHU, Peiying , XU, Hua , ABDI, Moussa , LE STRAT, Evelyne , BOUMENDIL, Sarah
IPC分类号： H04B7/208 , H04Q7/20
CPC分类号： H04B7/2621 , H04L5/0007 , H04L5/0023 , H04L5/0051
摘要： A method and system for wireless frequency division multiple access communications in the uplink and/or downlink directions, having an improved pilot insertion scheme for single carrier based communications is provided. A first time duration for transmission of a data payload block (7) is established, and the transmission is processed using a first frequency domain or a time domain. A second time duration for transmission of at least one pilot block (70) is established, and the transmission is processed using a second frequency domain or the time domain, the second time duration (70) is not greater than the first time duration (7).
摘要翻译：提供了一种用于上行链路和/或下行链路方向上的无线频分多址通信的方法和系统，其具有用于基于单载波的通信的改进的导频插入方案。建立用于发送数据有效载荷块（7）的第一时间段，并且使用第一频域或时域处理传输。建立用于发送至少一个导频块（70）的第二持续时间，并且使用第二频域或时域处理该传输，第二持续时间（70）不大于第一持续时间（7））。

37. 发明申请

WO2006076787A1 METHOD AND SYSTEM FOR RETRANSMITTING DATA PACKETS 审中-公开
标题翻译：用于重新发送数据包的方法和系统
公开(公告)号：WO2006076787A1
公开(公告)日：2006-07-27
申请号：PCT/CA2005/001976
申请日：2005-12-28
申请人： NORTEL NETWORKS LIMITED , TONG, Wen , JIA, Ming , MA, Jianglei , ZHU, Peiying
发明人： TONG, Wen , JIA, Ming , MA, Jianglei , ZHU, Peiying
IPC分类号： H04L1/08 , H04L12/56
CPC分类号： H04L1/0643 , H04L1/1867
摘要： A method and system are provided for minimizing errors by retransmitting packets in a multiple-input-multiple-output (MIMO) space-time coded packet radio. A packet is transmitted using a first STC code mapping, the mapping including well-known symbol operations, and optional signal weighting. When transmission errors are detected the packet is re-transmitted using STC code mappings selected in turn from a deterministic sequence of STC code mappings. The STC code mappings are chosen in accordance with one or more principles.
摘要翻译：提供了一种用于通过在多输入多输出（MIMO）空时编码分组无线电中重传分组来最小化错误的方法和系统。使用第一STC码映射来发送分组，该映射包括公知的符号操作和可选的信号加权。当检测到传输错误时，使用从确定性序列的STC码映射依次选择的STC码映射来重新发送分组。根据一个或多个原则选择STC代码映射。

38. 发明申请

WO2005096519A1 SPACE-TIME TRANSMIT DIVERSITY SYSTEMS AND METHODS FOR OFDM APPLICATIONS 审中-公开
标题翻译：空间传输多样性系统和OFDM应用的方法
公开(公告)号：WO2005096519A1
公开(公告)日：2005-10-13
申请号：PCT/CA2005/000504
申请日：2005-04-04
申请人： NORTEL NETWORKS LIMITED , JIA, Ming , TONG, Wen , MA, Jianglei , ZHU, Peiying , YU, Dong-Sheng
发明人： JIA, Ming , TONG, Wen , MA, Jianglei , ZHU, Peiying , YU, Dong-Sheng
IPC分类号： H04B7/06
CPC分类号： H04B7/0691 , H04B7/0669 , H04B7/0689 , H04B7/0891 , H04L1/0069 , H04L1/0643 , H04L1/0662 , H04L1/0668 , H04L27/2602 , H04L27/2626 , H04L27/2647
摘要： Embodiments of the invention provide orthogonal Frequency Division Multiplexing-Space-time Block Codes (OFDMSTBC) mappings for code rate 1, 2 and 4 codes for 4 Transmit Antennas. To overcome the innate weakness of known codes, a new class of STBC codes is provided which is particularly suited for OFDM applications, although other applications are also contemplated. Codes for STBC mappings in the time direction, the frequency direction and a combined time frequency mapping for multiple antennas are provided. In OFDM applications, these codes exploit the properties of OFDM and FEC codes to substantially maintain the advantages of Alamouti codes. Furthermore, while the detailed examples given herein focus on four antenna applications, they can be easily extended to systems with more than four antennas.
摘要翻译：本发明的实施例为4个发射天线的码率1,2和4码提供正交频分复用 - 空时块码（OFDMSTBC）映射。为了克服已知代码的固有缺点，提供了一类新的STBC代码，其特别适用于OFDM应用，尽管也考虑了其他应用。提供了在时间方向上的STBC映射代码，频率方向和多个天线的组合时间频率映射。在OFDM应用中，这些代码利用OFDM和FEC码的性质来基本上保持Alamouti码的优点。此外，虽然本文给出的详细示例集中在四个天线应用，但是它们可以容易地扩展到具有多于四个天线的系统。

39. 发明申请

WO2011035440A1 METHODS OF RADIO COMMUNICATION INVOLVING MULTIPLE RADIO CHANNELS, AND RADIO SIGNAL REPEATER AND MOBILE STATION APPARATUSES IMPLEMENTING SAME 审中-公开
标题翻译：涉及多个无线电频道的无线电通信方法，无线电信号重发器和移动台站的实施方法
公开(公告)号：WO2011035440A1
公开(公告)日：2011-03-31
申请号：PCT/CA2010/001530
申请日：2010-09-24
申请人： NORTEL NETWORKS LIMITED , ZHANG, Hang , TONG, Wen , MA, Jianglei , ZHU, Peiying , JIA, Ming
发明人： ZHANG, Hang , TONG, Wen , MA, Jianglei , ZHU, Peiying , JIA, Ming
IPC分类号： H04W16/26 , H04B7/15 , H04W24/10
CPC分类号： H04B7/2606 , H04B7/15542 , H04W72/0453 , H04W72/085 , H04W84/047
摘要： A method of facilitating radio communications involves receiving a first message from a first remote radio station on a first radio channel, transmitting the first message to a second remote radio station on a second radio channel, receiving a second message from the second remote radio station on a third radio channel, and transmitting the second message to the first remote radio station on a fourth radio channel. A method of radio communication involves receiving a first radio signal from a first remote radio station on a first radio channel, transmitting a second radio signal to the first remote radio station on a second radio channel, receiving a third radio signal from a second remote radio station on a third radio channel, and transmitting a fourth radio signal to the second remote radio station on a fourth radio channel. Radio signal repeater and mobile station apparatuses are also disclosed.
摘要翻译：一种促进无线电通信的方法涉及在第一无线电信道上从第一远程无线电站接收第一消息，在第二无线电信道上将第一消息发送到第二远程无线电台，从第二远程无线电台接收第二消息，第三无线电信道，并且在第四无线电信道上将所述第二消息发送到所述第一远程无线电台。无线电通信的方法涉及在第一无线电信道上从第一远程无线电站接收第一无线电信号，在第二无线电信道上向第一远程无线电台发送第二无线电信号，从第二无线电信道接收第三无线电信号并且在第四无线电信道上向第二远程无线电台发送第四无线电信号。还公开了无线电信号中继器和移动站装置。

40. 发明申请

WO2010017628A1 APPARATUS AND METHOD FOR ENABLING DOWNLINK TRANSPARENT RELAY IN A WIRELESS COMMUNICATIONS NETWORK 审中-公开
标题翻译：在无线通信网络中实现下行链路透明中继的装置和方法
公开(公告)号：WO2010017628A1
公开(公告)日：2010-02-18
申请号：PCT/CA2009/001117
申请日：2009-08-12
申请人： NORTEL NETWORKS LIMITED , MA, Jianglei , XU, Hua , ZHANG, Hang , ZHU, Peiying , TONG, Wen
发明人： MA, Jianglei , XU, Hua , ZHANG, Hang , ZHU, Peiying , TONG, Wen
IPC分类号： H04B7/15 , H04W16/26 , H04W24/00 , H04W84/02
CPC分类号： H04B7/155 , H04B7/2606 , H04W16/26 , H04W84/047
摘要： Methods and apparatus are described for enabling downlink transparent relay in a wireless communication network. In a wireless communications network, a base station and a mobile station may communicate with each other via a relay station, as needed. Transparent relay may allow for relay communication between a base station and a mobile station although the mobile station is unaware of the relay station. However, non-contiguous transmission of a relay station may lead to channel quality measurement and channel estimation degradation during downlink transparent relay. According to some aspects, a base station may schedule a mobile station to a transmission mode that utilizes dedicated pilot signals for downlink transparent relay, and a relay station may transmit data and dedicated pilot signals over the same channel resources as the base station. According to some aspects, the relay station may null common pilot signals transmitted by the base station.
摘要翻译：描述了用于在无线通信网络中启用下行链路透明中继的方法和装置。在无线通信网络中，根据需要，基站和移动台可以经由中继站相互通信。尽管移动台不知道中继站，但是透明中继可以允许基站和移动台之间的中继通信。然而，中继站的不连续传输可能导致下行链路透明中继期间的信道质量测量和信道估计恶化。根据一些方面，基站可以将移动台调度为利用用于下行链路透明中继的专用导频信号的传输模式，并且中继站可以通过与基站相同的信道资源发送数据和专用导频信号。根据一些方面，中继站可以丢弃由基站发送的公共导频信号。

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