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1. 发明申请

WO2005041515A1 FREQUENCY DIVISION MULTIPLEXING OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
标题翻译：无线多载波通信系统中多个数据流的频分多址
公开(公告)号：WO2005041515A1
公开(公告)日：2005-05-06
申请号：PCT/US2004/035042
申请日：2004-10-21
申请人： QUALCOMM INCORPORATED , VIJAYAN, Rajiv , WALKER, Kent, G. , KRISHNAMOORTHI, Raghuraman , MURALI, Ramaswamy
发明人： VIJAYAN, Rajiv , WALKER, Kent, G. , KRISHNAMOORTHI, Raghuraman , MURALI, Ramaswamy
IPC分类号： H04L27/26
CPC分类号： H04L5/0064 , H04L5/0007 , H04L5/0039 , H04L5/0046 , H04L5/0048 , H04L25/0226 , H04L27/2655
摘要： Techniques for multiplexing multiple data streams using frequency division multiplexing (FDM) in an OFDM system are described. M disjoint "interlaces" are formed with U usable subbands. Each interlace is a different set of S subbands, where . The subbands for each interlace are interlaced with the subbands for each of the other interlaces. M slots may be defined for each symbol period and assigned slot indices 1 through M. The slot indices may be mapped to interlaces such that (1) frequency diversity is achieved for each slot index and (2) the interlaces used for pilot transmission have varying distances to the interlaces used for each slot index, which improves channel estimation performance. Each data stream may be processed as data packets of a fixed size, and different numbers of slots may be used for each data packet depending on the coding and modulation scheme used for the data packet.
摘要翻译：描述了在OFDM系统中使用频分复用（FDM）来复用多个数据流的技术。 M个不相交的“交错”与U个可用的子带形成。每个交错是一组不同的S个子带，其中。每个交错的子带与每个其他交织的子带交错。可以为每个符号周期和分配的时隙索引1到M定义M个时隙。时隙索引可以被映射到交织，使得（1）针对每个时隙索引实现频率分集，以及（2）用于导频传输的交织具有不同的到每个时隙索引用于交织的距离，这提高了信道估计性能。每个数据流可以被处理为固定大小的数据分组，并且根据用于数据分组的编码和调制方案，每个数据分组可以使用不同数量的时隙。

2. 发明申请

WO2005043310A2 METHOD AND APPARATUS FOR SEAMLESSLY SWITCHING RECEPTION BETWEEN MULTIMEDIA STREAMS IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中多媒体流无缝切换接收的方法与装置
公开(公告)号：WO2005043310A2
公开(公告)日：2005-05-12
申请号：PCT/US2004/034884
申请日：2004-10-22
申请人： QUALCOMM INCORPORATED , MURALI, Ramaswamy , WALKER, Kent G. , VIJAYAN, Rajiv
发明人： MURALI, Ramaswamy , WALKER, Kent G. , VIJAYAN, Rajiv
IPC分类号： G06F
CPC分类号： H04N5/4401 , H04N5/50 , H04N21/41407 , H04N21/4345 , H04N21/4384 , H04N21/44222
摘要： Techniques to seamlessly switch reception between multimedia programs are described. For "continued decoding", a wireless device continues to receive, decode, decompress, and (optionally) display a current program, even after a new program has been selected, until overhead information needed to decode the new program is received. After receiving the overhead information, the wireless device decodes the new program but continues to decompress the current program. The wireless device decompresses the new program after decoding this program. For "early decoding", the wireless device receives a user input and identifies a program with potential for user selection. The identified program may be the one highlighted by the user input or a program anticipated to be selected based on the user input. The wireless device initiates decoding of the identified program, prior to its selection, so that the program can be decompressed and displayed earlier if it is subsequently selected.
摘要翻译：描述了在多媒体节目之间无缝切换接收的技术。对于“继续解码”，即使在选择了新的程序之后，无线设备继续接收，解码，解压缩和（可选地）显示当前程序，直到接收到解码新程序所需的开销信息。在接收到开销信息之后，无线设备解码新程序，但是继续解压缩当前程序。解码该程序后，无线设备解压缩新程序。对于“早期解码”，无线设备接收用户输入并识别具有用户选择潜力的节目。识别的程序可以是由用户输入或预期将基于用户输入选择的程序突出显示的程序。无线设备在其选择之前启动所识别的节目的解码，使得如果随后选择该节目，则可以更早地解压缩并显示节目。

3. 发明申请

WO2005043829A3 LOCAL AND WIDE-AREA TRANSMISSIONS IN A WIRELESS BROADCAST NETWORK 审中-公开
公开(公告)号：WO2005043829A3
公开(公告)日：2005-05-12
申请号：PCT/US2004/034883
申请日：2004-10-22
申请人： QUALCOMM INCORPORATED , MURALI, Ramaswamy , LING, Fuyun , VIJAYAN, Rajiv , WALKER, Kent G. , MANTRAVADI, Ashok , SUBRAMANIAM, Anand, D.
发明人： MURALI, Ramaswamy , LING, Fuyun , VIJAYAN, Rajiv , WALKER, Kent G. , MANTRAVADI, Ashok , SUBRAMANIAM, Anand, D.
IPC分类号： H04H1/00
摘要： To broadcast different types of transmission having different tiers of coverage in a wireless broadcast network, each base station processes data for a wide-area transmission in accordance with a first mode (or coding and modulation scheme) to generate data symbols for the wide-area transmission and processes data for a local transmission in accordance with a second mode to generate data symbols for the local transmission. The first and second modes are selected based on the desired coverage for wide-area and local transmissions, respectively. The base station also generates pilots and overhead information for local and wide-area transmissions. The data, pilots, and overhead information for local and wide-area transmissions are multiplexed onto their transmission spans, which may be different sets of frequency subbands, different time segments, or different groups of subbands in different time segments. More than two different types of transmission may also be multiplexed and broadcast.

4. 发明申请

WO2006015270A1 SYSTEM AND METHOD FOR INTERLEAVING 审中-公开
标题翻译：用于交互的系统和方法
公开(公告)号：WO2006015270A1
公开(公告)日：2006-02-09
申请号：PCT/US2005/027106
申请日：2005-07-29
申请人： QUALCOMM INCORPORATED , WANG, Michael, Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
发明人： WANG, Michael, Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
IPC分类号： H04L1/00
CPC分类号： H04L1/0071 , H03M13/27 , H03M13/271 , H03M13/2757 , H03M13/276 , H03M13/2771 , H04L1/00 , H04L1/0041 , H04L1/0066 , H04L1/007 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0048 , H04L5/0083 , H04L25/0226 , H04L27/2607 , H04L27/261 , H04L27/2626 , H04L27/2656 , H04L27/2662
摘要： A system and method for frequency diversity uses interleaving. Subcarriers of an interlace are interleaved in a bit reversal fashion and the interlaces are interleaved in the bit reversal fashion.
摘要翻译：用于频率分集的系统和方法使用交织。交织的子载波以位反转的方式进行交织，并且以位反转方式交错交织。

5. 发明申请

WO2006076451A2 METHODS AND APPARATUS FOR TRANSMITTING LAYERED AND NON-LAYERED DATA VIA LAYERED MODULATION 审中-公开
标题翻译：通过分层调制发送分层和非分层数据的方法和设备
公开(公告)号：WO2006076451A2
公开(公告)日：2006-07-20
申请号：PCT/US2006/001014
申请日：2006-01-11
申请人： QUALCOMM INCORPORATED , COLLINS, Bruce , KRISHNAMURTHI, Rajeev , MURALI, Ramaswamy , GAUTAM, Shusheel , VIJAYAN, Rajiv , CHUNG, Seong Taek
发明人： COLLINS, Bruce , KRISHNAMURTHI, Rajeev , MURALI, Ramaswamy , GAUTAM, Shusheel , VIJAYAN, Rajiv , CHUNG, Seong Taek
IPC分类号： H04L27/34
CPC分类号： H04L1/0065 , H04L1/0041 , H04L1/0045 , H04L1/0058 , H04L5/023 , H04L27/3488 , H04L2001/0098
摘要： A media access control (MAC) layer controller can manage base layer data and enhancement layer data in a layered modulation system. The MAC layer controller can process both base layer data and enhancement layer data and map the encoded symbols to a layered modulation constellation when both are present. If data for one of the layers terminates, then the MAC layer controller can generate and supply predetermined stuffing data to the layer lacking additional data. The MAC layer controller can send a control signal to the physical layer hardware to cause the hardware to map the layered signals having the stuffing data to a modified signal constellation. The MAC controller can also generate an overhead message that indicates the occurrence of the stuffing data. The receiver can receive the overhead message and can use the information to configure the receiver for the layered modulation constellation or the modified signal constellation.
摘要翻译：媒体访问控制（MAC）层控制器可以管理分层调制系统中的基础层数据和增强层数据。当两者都存在时，MAC层控制器可以处理基础层数据和增强层数据并将编码后的符号映射到分层调制星座。如果其中一个层的数据终止，则MAC层控制器可以生成并提供预定的填充数据给缺少附加数据的层。 MAC层控制器可以发送控制信号给物理层硬件，以使硬件将具有填充数据的分层信号映射到修改的信号星座。 MAC控制器还可以生成指示填充数据发生的开销消息。接收器可以接收开销消息并且可以使用该信息来配置用于分层调制星座或修改的信号星座的接收器。

6. 发明申请

WO2006015269A1 SYSTEM AND METHOD FOR DIVERSITY INTERLEAVING 审中-公开
标题翻译：用于分集交织的系统和方法
公开(公告)号：WO2006015269A1
公开(公告)日：2006-02-09
申请号：PCT/US2005/027105
申请日：2005-07-29
申请人： QUALCOMM INCORPORATED , WANG, Michael, Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
发明人： WANG, Michael, Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
IPC分类号： H04L1/00
CPC分类号： H04L1/0071 , H03M13/27 , H03M13/271 , H03M13/2757 , H03M13/276 , H03M13/2771 , H04L1/00 , H04L1/0041 , H04L1/0066 , H04L1/007 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0048 , H04L5/0083 , H04L25/0226 , H04L27/2607 , H04L27/261 , H04L27/2626 , H04L27/2656 , H04L27/2662
摘要： A system and method for modulation diversity uses interleaving. Code bits are placed into groups and are then shuffled within each group.
摘要翻译：用于调制分集的系统和方法使用交织。代码位被放入组中，然后在每个组内混洗。

7. 发明申请

WO2006015268A2 SYSTEM AND METHOD FOR TIME DIVERSITY 审中-公开
标题翻译：时间多样性的系统与方法
公开(公告)号：WO2006015268A2
公开(公告)日：2006-02-09
申请号：PCT/US2005/027104
申请日：2005-07-29
申请人： QUALCOMM INCORPORATED , WANG, Michael Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
发明人： WANG, Michael Mao , LING, Fuyun , MURALI, Ramaswamy , VIJAYAN, Rajiv
IPC分类号： H04L1/00
CPC分类号： H04L1/0071 , H03M13/27 , H03M13/271 , H03M13/2757 , H03M13/276 , H03M13/2771 , H04L1/00 , H04L1/0041 , H04L1/0066 , H04L1/007 , H04L5/0007 , H04L5/0042 , H04L5/0044 , H04L5/0048 , H04L5/0083 , H04L25/0226 , H04L27/2607 , H04L27/261 , H04L27/2626 , H04L27/2656 , H04L27/2662
摘要： A system and method for time diversity uses interleaving. To simplify the operation at both transmitters and receivers, a formula can be used to determine the mapping from slot to interlace at a given OFDM symbol time.
摘要翻译：用于时间分集的系统和方法使用交织。为了简化发射机和接收机的操作，可以使用公式来确定在给定OFDM符号时间从时隙到交错的映射。

8. 发明申请

WO2005022811A2 MULTIPLEXING AND TRANSMISSION OF MULTIPLE DATA STREAMS IN A WIRELESS MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
标题翻译：无线多载波通信系统中多路数据流的多路复用与传输
公开(公告)号：WO2005022811A2
公开(公告)日：2005-03-10
申请号：PCT/US2004/028676
申请日：2004-09-02
申请人： QUALCOMM Incorporated , VIJAYAN, Rajiv , KHANDEKAR, Aamod , LING, Fuyun , WALKER, Kent , MURALI, Ramaswamy
发明人： VIJAYAN, Rajiv , KHANDEKAR, Aamod , LING, Fuyun , WALKER, Kent , MURALI, Ramaswamy
IPC分类号： H04L
CPC分类号： H04W52/0209 , H04B7/12 , H04L1/0057 , H04L1/0065 , H04L1/0071 , H04L1/0083 , H04L5/0007 , H04L5/0044 , H04L5/0048 , H04L5/0053 , H04L5/06 , H04L25/0224 , H04L27/2602 , H04N21/2383 , H04N21/4382 , H04N21/6112 , H04W4/06 , H04W28/06 , H04W72/04 , Y02D70/166 , Y02D70/168 , Y02D70/442
摘要： Techniques for multiplexing and transmitting multiple data streams are described. Transmission of the multiple data streams occurs in “super-frames”. Each super-frame has a predetermined time duration and is further divided into multiple (e.g., four) frames. Each data block for each data stream is outer encoded to generate a corresponding code block. Each code block is partitioned into multiple subblocks, and each data packet in each code block is inner encoded and modulated to generate modulation symbols for the packet. The multiple subblocks for each code block are transmitted in the multiple frames of the same super-frame, one subblock per frame. Each data stream is allocated a number of transmission units in each super-frame and is assigned specific transmission units to achieve efficient packing. A wireless device can select and receive individual data streams.
摘要翻译：描述用于复用和传输多个数据流的技术。多个数据流的传输发生在“超帧”中。每个超帧具有预定的持续时间并进一步分为多个（例如，四个）帧。每个数据流的每个数据块被外部编码以生成相应的代码块。每个码块被划分成多个子块，并且每个码块中的每个数据分组被内部编码和调制以产生分组的调制符号。每个码块的多个子块在相同超帧的多个帧中传送，每帧一个子块。每个数据流在每个超帧中被分配多个传输单元，并被分配特定的传输单元以实现有效的打包。无线设备可以选择和接收各个数据流。

9. 发明申请

WO2005022797A2 SYNCHRONIZATION IN A BROADCAST OFDM SYSTEM USING TIME DIVISION MULTIPLEXED PILOTS 审中-公开
标题翻译：使用时分多路复用器的广播OFDM系统中的同步
公开(公告)号：WO2005022797A2
公开(公告)日：2005-03-10
申请号：PCT/US2004/028577
申请日：2004-09-01
申请人： QUALCOMM, INCORPORATED , LING, Fuyun , GUPTA, Alok , KRISHNAMOORTHI, Raghuraman , MURALI, Ramaswamy , VIJAYAN, Rajiv
发明人： LING, Fuyun , GUPTA, Alok , KRISHNAMOORTHI, Raghuraman , MURALI, Ramaswamy , VIJAYAN, Rajiv
IPC分类号： H04J
CPC分类号： H04L27/2657 , H04L5/005 , H04L25/022 , H04L27/2613 , H04L27/2662 , H04L27/2665 , H04L2027/003
摘要： In an OFDM system, a transmitter broadcasts a first TDM pilot on a first set of subbands followed by a second TDM pilot on a second set of subbands in each frame. The subbands in each set are selected from among N total subbands such that (1) an OFDM symbol for the first TDM pilot contains at least S1 identical pilot-1 sequences of length L1 and (2) an OFDM symbol for the second TDM pilot contains at least S2 identical pilot-2 sequences of length L2, where , , and . The transmitter may also broadcast an FDM pilot. A receiver processes the first TDM pilot to obtain frame timing (e.g., by performing correlation between different pilot-1 sequences) and further processes the second TDM pilot to obtain symbol timing (e.g., by detecting for the start of a channel impulse response estimate derived from the second TDM pilot).
摘要翻译：在OFDM系统中，发射机在第一组子带上广播第一TDM导频，随后在每个帧中的第二组子带上跟随第二TDM导频。每个组中的子带从N个总子带中选择，使得（1）第一TDM导频的OFDM符号包含长度为L1的至少S1个相同的导频1序列，以及（2）第二TDM导频的OFDM符号包含长度为L2的至少S2个相同的导频-2序列，其中，和。发射机还可以广播FDM导频。接收机处理第一TDM导频以获得帧定时（例如，通过执行不同导频-1序列之间的相关）并且进一步处理第二TDM导频以获得符号定时（例如，通过检测导出的信道脉冲响应估计的开始从第二TDM导频）。

10. 发明申请

WO2005122627A1 TRANSMISSION OF OVERHEAD INFORMATION FOR BROADCAST AND MULTICAST SERVICES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：在无线通信系统中传输广播和多播服务的覆盖信息
公开(公告)号：WO2005122627A1
公开(公告)日：2005-12-22
申请号：PCT/US2005/019541
申请日：2005-06-03
申请人： QUALCOMM INCORPORATED , AGRAWAL, Avneesh , MALLADI, Durga P. , STAMOULIS, Anastasios , MANTRAVADI, Ashok , MURALI, Ramaswamy
发明人： AGRAWAL, Avneesh , MALLADI, Durga P. , STAMOULIS, Anastasios , MANTRAVADI, Ashok , MURALI, Ramaswamy
IPC分类号： H04Q7/38
CPC分类号： H04W88/10 , H04B7/2656 , H04L1/0083 , H04L5/14 , H04L27/2602 , H04W92/10 , Y02D70/1222 , Y02D70/1242 , Y02D70/1244 , Y02D70/21 , Y02D70/449
摘要： To transmit overhead information for broadcast and multicast services in a system that utilizes multiple radio technologies, time slots used for OFDM in a super-frame are initially ascertained. Overhead information for multiple streams to be sent in the time slots used for OFDM is generated. The overhead information conveys the time slots and the coding and modulation used for the streams and may be given in various forms. Multiple records may be formed for the overhead information for the streams. The overhead information for the streams is processed and time division multiplexed with the data for the streams in the super-frame. Information indicating the time slots used for OFDM in the super-frame may be sent separately or included in the overhead information. An indicator may also be appended to each stream to indicate whether there is any change in the overhead information for the stream in the next super-frame.
摘要翻译：为了在利用多个无线电技术的系统中传送用于广播和多播服务的开销信息，最初确定了用于超帧中的OFDM的时隙。产生用于在用于OFDM的时隙中发送的多个流的开销信息。开销信息传达用于流的时隙和编码和调制，并且可以以各种形式给出。可以为流的开销信息形成多个记录。对流的开销信息进行处理，并与超帧中的流的数据进行时分复用。指示用于超帧中的OFDM的时隙的信息可以单独发送或包括在开销信息中。指示符也可以附加到每个流以指示在下一个超帧中的流的开销信息是否存在任何改变。

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