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1. 发明公开

EP2095657A2 BEACON TRANSMISSION AND RECEPTION USING DIRECTIONAL ANTENNAS 审中-公开
标题翻译：信标传输和接收使用定向天线
公开(公告)号：EP2095657A2
公开(公告)日：2009-09-02
申请号：EP07849466.3
申请日：2007-12-12
申请人： Koninklijke Philips Electronics N.V. , Seyedi-Esfahani, Seyed-Alireza
发明人： SEYEDI-ESFAHANI, Seyed-Alireza , CHOU, Chun-Ting , CHEN, Richard
IPC分类号： H04Q7/36
CPC分类号： H04W16/28 , H04W48/08 , H04W48/16 , H04W74/04
摘要： A system for broadcasting and receiving a beacon signal includes a beacon transmitter (210, 400) and a beacon receiver (320, 500). The beacon transmitter includes a beacon signal generator (410) to generate a beacon signal, and a directional antenna system (420) to selectively transmit the beacon signal in a corresponding one of M different directions during each one of M beacon slots (342) during a beacon period (340) in each of a plurality of superframes (330). The beacon receiver includes a beacon signal detector (510) to receive and detect the beacon signal, and a directional antenna system (520) having an antenna pattern including a main lobe and being adapted to selectively steer the main lobe in a selected one of N different directions during each of a plurality of receiver frames each having a time period substantially equal to a time period of one of the superframes.

2. 发明申请

WO2008087604A3 APPARATUS AND METHOD FOR ENABLING DISCOVERY OF WIRELESS DEVICES 审中-公开
公开(公告)号：WO2008087604A3
公开(公告)日：2008-07-24
申请号：PCT/IB2008/050177
申请日：2008-01-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , SEYEDI-ESFAHANI, Seyed-Alireza , CHOU, Chun-Ting , CHEN, Richard
发明人： SEYEDI-ESFAHANI, Seyed-Alireza , CHOU, Chun-Ting , CHEN, Richard
IPC分类号： H04L12/28
摘要： A wireless device (A) in a first antenna sector (40) is discovered using a directional antenna (322), which sends and receives signals in multiple antenna sectors. Multiple primary beacons are transmitted in corresponding primary beacon time slots (1P - 4P), which correspond to the antenna sectors (10 - 40) and have associated secondary beacon time slots (1s - 4s). A secondary beacon is received from the wireless device in a first secondary beacon time slot (4sA) associated with a first primary beacon time slot (4P) corresponding to the first sector, the secondary beacon being responsive to a first primary beacon included in the first primary beacon time slot. An additional first secondary beacon time slot (4s) is added in association with the first primary beacon time slot. The additional first secondary beacon time slot enables an additional wireless device in the first sector to send an additional secondary beacon in response to a subsequent first primary beacon included in the first primary beacon time slot.

3. 发明申请

WO2008087599A2 SYSTEM AND METHOD FOR EFFICIENT TRANSMISSION OF MULTIMEDIA AND DATA 审中-公开
标题翻译：用于有效传输多媒体和数据的系统和方法
公开(公告)号：WO2008087599A2
公开(公告)日：2008-07-24
申请号：PCT/IB2008/050162
申请日：2008-01-16
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SEYEDI-ESFAHANI, Seyed-Alireza , BIRRU, Dagnachew
发明人： SEYEDI-ESFAHANI, Seyed-Alireza , BIRRU, Dagnachew
IPC分类号： H04L1/00
CPC分类号： H04L1/0089 , H04L1/0041 , H04L1/0061 , H04L1/007 , H04L1/0075 , H04L2001/0098
摘要： A system and method for efficient transmission of different types of source data in the same packet, hence, enabling efficient transmission of multimedia and data content with unequal error protection are provided. The present disclosure defines a packet structure where the packet consists of a number of segments or payloads. The packet includes a field indicative of a number of payloads included in the packet; and at least one data field for each payload in the packet, the at least one data field defining at least one characteristic of the payload. The at least one data field includes a length of the payload, modulation and coding scheme, existence of a frame check sum (FCS), and existence of a midamble. The at least one data field may further include a continuation element indicative of whether two consecutive payloads are portions of a same data frame.
摘要翻译：提供了用于在相同分组中有效地传输不同类型的源数据的系统和方法，因此，提供了具有不等错误保护的多媒体和数据内容的有效传输。本公开定义了分组结构，其中分组由多个分段或有效载荷组成。分组包括指示分组中包括的有效载荷数量的字段; 以及用于分组中的每个有效载荷的至少一个数据字段，所述至少一个数据字段定义所述有效载荷的至少一个特性。所述至少一个数据字段包括有效负载的长度，调制和编码方案，帧校验和（FCS）的存在以及中间码的存在。所述至少一个数据字段还可以包括指示两个连续有效负载是相同数据帧的部分的继续元素。

4. 发明申请

WO2008053413A2 SINGLE CARRIER BLOCK TRANSMISSION WITH TRELLIS CODED MODULATION (TCM), MULTI-LEVEL CODED MODULATION (MLCM) AND BIT-INTERLEAVED MLCM (BIMLCM) 审中-公开
标题翻译：具有TRLLIS编码调制（TCM），多级编码调制（MLCM）和位交互MLCM（BIMLCM）的单载波块传输
公开(公告)号：WO2008053413A2
公开(公告)日：2008-05-08
申请号：PCT/IB2007/054351
申请日：2007-10-25
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , SEYEDI-ESFAHANI, Seyed-Alireza , BIRRU, Dagnachew
发明人： SEYEDI-ESFAHANI, Seyed-Alireza , BIRRU, Dagnachew
IPC分类号： H04L1/00
CPC分类号： H04L1/0041 , H04L1/0054 , H04L1/006 , H04L1/0071 , H04L25/03159 , H04L25/03203 , H04L27/186 , H04L27/3416

5. 发明申请

WO2008038248A2 COST-EFFECTIVE PREAMBLE STRUCTURE FOR HIGH-SPEED COMMUNICATION OF PACKETIZED SYSTEMS 审中-公开
标题翻译：封装系统高速通信的成本有效的前沿结构
公开(公告)号：WO2008038248A2
公开(公告)日：2008-04-03
申请号：PCT/IB2007/053934
申请日：2007-09-27
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza
发明人： BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza
IPC分类号： H04L27/26
CPC分类号： H04L27/2614 , H04L27/261 , H04L27/2615

6. 发明申请

WO2008038210A2 METHOD AND SYSTEM TO REDUCE PAPR IN SINGLE CARRIER AND SCBT COMMUNICATIONS SYSTEMS 审中-公开
标题翻译：减少单载波和短波通信系统中PAPR的方法和系统
公开(公告)号：WO2008038210A2
公开(公告)日：2008-04-03
申请号：PCT/IB2007/053846
申请日：2007-09-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , SEYEDI-ESFAHANI, Seyed-Alireza
发明人： SEYEDI-ESFAHANI, Seyed-Alireza
CPC分类号： H04L27/3483 , H04L27/2082 , H04L27/3411
摘要： The system (800), transmitter (600), receiver (700), and method of the present invention provide a technique to reduce the Peak to Average Power Ratio (PAPR) for the single carrier and single carrier block transmission (SCBT) modulations, especially when non-symmetric constellations (e.g. BPSK) are used. The constellation used for the modulation of each symbol, is rotated by a phase. Only the constellation is rotated, and the mapping of the bits into each constellation may or may not be similar. Further, in alternative embodiments the modulated bits are either encoded or not encoded. In a further alternative embodiment, a Trellis Coded Modulation (TCM) is used. Because the phase rotation is known a priori, or can be determined from a priori known information, it can easily be corrected at the receiver.
摘要翻译：本发明的系统（800），发射机（600），接收机（700）和方法提供了降低单载波和单载波块传输（SCBT）调制的峰均功率比（PAPR）的技术，特别是当使用非对称星座（例如BPSK）时。用于每个符号的调制的星座旋转相位。只有星座旋转，并且位到每个星座的映射可以是或者可能不相似。此外，在替代实施例中，调制比特被编码或不被编码。在另一替代实施例中，使用网格编码调制（TCM）。因为相位旋转是先验已知的，或者可以从先验已知信息确定，所以可以容易地在接收机处校正相位旋转。

7. 发明申请

WO2009060324A1 SYSTEM AND METHOD OF SELECTIVELY COMMUNICATING USING OFDM TRANSMISSIONS AND SINGLE-CARRIER BLOCK TRANSMISSIONS 审中-公开
标题翻译：使用OFDM传输和单载波块传输的选择性通信的系统和方法
公开(公告)号：WO2009060324A1
公开(公告)日：2009-05-14
申请号：PCT/IB2008/052460
申请日：2008-06-21
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza
发明人： BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza
IPC分类号： H04L27/00
CPC分类号： H04L25/022 , H04L1/0003 , H04L1/0071 , H04L25/0224 , H04L27/0008 , H04L27/2601
摘要： A data transmitter transmits data packets comprising a plurality of symbols. The data transmitter maps symbols in at least one of the data packets using a single-carrier transmission format, and maps symbols in at least another of the data packets using a multi-carrier transmission format. The data transmitter maps the symbols using the multi-carrier transmission format when the characteristics of a communication channel over which the data packets are transmitted satisfy a first set of conditions, and maps the symbols using the single-carrier transmission format when the data transmitter determines that the characteristics of the communication channel do not satisfy the first set of conditions. A receiver processes the data packets according to which transmission format was employed in transmission.
摘要翻译：数据发送器发送包括多个符号的数据分组。数据发射机使用单载波传输格式在至少一个数据分组中映射符号，并且使用多载波传输格式在至少另一个数据分组中映射符号。当发送数据分组的通信信道的特性满足第一组条件时，数据发射机使用多载波传输格式映射符号，并且当数据发射机确定时使用单载波传输格式映射符号通信信道的特性不满足第一组条件。接收机根据传输中采用的传输格式处理数据包。

8. 发明申请

WO2007063519A2 WINDOWED ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING FOR SPECTRUM AGILE RADIOS 审中-公开
标题翻译：频谱捷变无线电的窗口正交分频多路复用
公开(公告)号：WO2007063519A2
公开(公告)日：2007-06-07
申请号：PCT/IB2006/054534
申请日：2006-11-30
申请人： KONINKLIJKE PHILIPS ELECTRONICS N.V. , SEYEDI-ESFAHANI, Seyed-Alireza
发明人： SEYEDI-ESFAHANI, Seyed-Alireza
IPC分类号： H04L27/26
CPC分类号： H04L5/0044 , H04L5/0007 , H04L27/2628
摘要： A method of transmitting data includes modulating data onto a plurality of frequency carriers to produce a plurality of mutually orthogonal modulated frequency signals. The mutually orthogonal modulated frequency signals are then combined into an orthogonal frequency division multiplex signal, which in turn is windowed by a transmission windowing function to produce a windowed orthogonal frequency division multiplex signal. The windowed orthogonal frequency division multiplex signal is transmitted. The windowed orthogonal frequency division multiplex signal includes a first set of the frequency carriers uniformly spaced apart from each other in frequency by a spacing Δf, and a second set of the frequency carriers from each other in frequency by the same spacing Δf, and there is a notch of at least 2Δf between the first set of frequency carriers and the second set of frequency carriers.
摘要翻译：传输数据的方法包括将数据调制到多个频率载波上以产生多个相互正交的调制频率信号。然后将相互正交的调制频率信号组合成正交频分多路复用信号，该正交频分多路复用信号又由传输窗口函数开窗以产生窗口正交频分多路复用信号。窗口化的正交频分复用信号被发送。加窗正交频分复用信号包括第一组频率载波和第二组频率载波，该第一组频率载波在频率上彼此均匀间隔开一个间隔Δf，并且第二组频率载波在频率上彼此相距相同的间隔Δf，在第一组频率载波和第二组频率载波之间至少2Δf的陷波。

9. 发明申请

WO2007034415A2 METHOD AND SYSTEM OF DIVERSITY TRANSMISSION OF DATA 审中-公开
标题翻译：数据传播的方法与系统
公开(公告)号：WO2007034415A2
公开(公告)日：2007-03-29
申请号：PCT/IB2006/053377
申请日：2006-09-19
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , SEYEDI-ESFAHANI, Seyed-Alireza
发明人： SEYEDI-ESFAHANI, Seyed-Alireza
CPC分类号： H04L1/02 , H04L25/14 , H04L27/34
摘要： A method (600) of communicating a plurality of data bits over L diversity channels uses a constellation set comprising a plurality (L) of M-point quadrature amplitude modulation (QAM) constellations corresponding to the L diversity channels. The constellations do not exhibit overlapping data points, and provide full diversity. The method includes mapping (650) k*L data bits to L QAM transmission symbols in the L QAM constellation sets, and transmitting (660) the L QAM symbols where M = 2 k*L . Each of each of the k*L data bits is directly mapped into all of the L QAM symbols of the QAM constellation set, and for all combinations of k*L bits, changing a value of one of k*L data bits changes all of the L symbols.
摘要翻译：通过L个分集信道传送多个数据比特的方法（600）使用包括对应于L个分集信道的多个（L）个M点正交幅度调制（QAM）星座的星座集。星座不显示重叠的数据点，并提供完整的多样性。该方法包括在L QAM星座集中将（kLL）个数字比特映射到L QAM个发送符号，并发送（660）L QAM符号，其中M = 2K * L。 k * L数据位中的每一个直接映射到QAM星座集的所有L QAM符号中，并且对于k * L位的所有组合，改变k * L个数据位中的一个的值改变全部 L个符号。

10. 发明申请

WO2008087603A2 METHOD AND SYSTEM OF SINGLE CARRIER BLOCK TRANSMISSION WITH PARALLEL ENCODING AND DECODING 审中-公开
标题翻译：单载波块传输并行编码和解码的方法和系统
公开(公告)号：WO2008087603A2
公开(公告)日：2008-07-24
申请号：PCT/IB2008/050176
申请日：2008-01-17
申请人： KONINKLIJKE PHILIPS ELECTRONICS, N.V. , BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza , CHEN, Richard , ZHAI, Hong , CHOU, Chun-Ting
发明人： BIRRU, Dagnachew , SEYEDI-ESFAHANI, Seyed-Alireza , CHEN, Richard , ZHAI, Hong , CHOU, Chun-Ting
IPC分类号： H03M13/27 , H04L5/02
CPC分类号： H04L1/0071 , H04L1/0043 , H04L1/0052
摘要： A Single Carrier Block Transmission (SCBT) system employs an inherently parallel approach to error correction processing. At the transmission system (200), an incoming data stream is split (210) into P parallel data streams, each having a data rate equal to a fraction of the incoming data stream's data rate. The parallel data streams are then each separately encoded (220) in P parallel encoding processes (beneficially, using P parallel encoders (222)). The P separately encoded data streams are then merged (330), interleaved (320), and mapped (310) into a single stream of encoded symbols, which are transmitted to the receiver using an arbitrary modulation (240) and transmission scheme. At the receiver (255), the received data stream is de-interleaved (350) and split into P encoded data streams, which are then decoded (285) using P parallel decoders. Then, the decoded data streams are combined or multiplexed (295) into a single data stream.
摘要翻译：单载波数据块传输（SCBT）系统采用固有的并行方式进行纠错处理。在传输系统（200）处，输入数据流被分离（210）成P个并行数据流，每个并行数据流的数据速率等于输入数据流的数据速率的一小部分。并行数据流然后在P并行编码过程（有利地，使用P个并行编码器（222））中分别编码（220）。然后，将分开编码的数据流合并（330），交织（320）并映射（310）成编码符号的单个流，其使用任意调制（240 ）和传输方案。在接收机（255），接收到的数据流被解交织（350）并被分成P个编码数据流，然后使用P并行解码（285）解码器。然后，解码的数据流被组合或复用（295）成单个数据流。

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