Flexible time-frequency multiplexing structure for wireless communication
    61.
    发明专利
    Flexible time-frequency multiplexing structure for wireless communication 审中-公开
    用于无线通信的灵活时频多路复用结构

    公开(公告)号:JP2012165400A

    公开(公告)日:2012-08-30

    申请号:JP2012055731

    申请日:2012-03-13

    Abstract: PROBLEM TO BE SOLVED: To efficiently send data in a wireless communication system.SOLUTION: An output waveform comprises traffic and overhead segments, and code division multiplexing (CDM) or orthogonal frequency division multiplexing (OFDM) is selected for each traffic segment. Each traffic segment carries CDM data at a chip rate if CDM is selected, and carries OFDM data if OFDM is selected. OFDM symbols are generated at a sample rate that is an integer ratio of the chip rate, and have the duration determined based on the traffic segment duration. The output waveform carries CDM data and/or OFDM data on subcarriers corresponding to at least one carrier in a spectral allocation and further carries OFDM data on remaining usable subcarriers in the spectral allocation.

    Abstract translation: 要解决的问题:有效地在无线通信系统中发送数据。

    解决方案:输出波形包括流量和开销段,并为每个流量段选择码分复用(CDM)或正交频分复用(OFDM)。 如果选择CDM,则每个流量段以码片速率携带CDM数据,并且如果选择OFDM,则携带OFDM数据。 OFDM符号是以码片速率的整数比率的采样率产生的,并且具有基于业务段持续时间确定的持续时间。 输出波形在频谱分配中携带与至少一个载波相对应的子载波上的CDM数据和/或OFDM数据,并且还在频谱分配中携带余下的可用副载波上的OFDM数据。 版权所有(C)2012,JPO&INPIT

    Reception of h-arq transmissions with interference cancellation in a quasi-orthogonal communication system
    62.
    发明专利
    Reception of h-arq transmissions with interference cancellation in a quasi-orthogonal communication system 有权
    接收正交通信系统中干扰消除的H-ARQ传输

    公开(公告)号:JP2012120193A

    公开(公告)日:2012-06-21

    申请号:JP2012000250

    申请日:2012-01-04

    CPC classification number: H04L1/1819 H04B2001/7152 H04L5/0023 H04L25/0224

    Abstract: PROBLEM TO BE SOLVED: To provide a method for receiving packets via H-ARQ transmissions with interference cancellation in a quasi-orthogonal communication system.SOLUTION: To receive packets with interference cancellation, block transmissions for the packets are received on time-frequency blocks used by these packets. Receiver spatial processing is performed on input symbols to obtain detected symbols. For each packet that is decoded correctly, the transmission for the packet is terminated, and the interference due to the packet is estimated. Receiver spatial processing is performed on the interference-canceled symbols to obtain new detected symbols for all time-frequency blocks used by all correctly decoded packets. Each packet decoded in error and overlapping at least partially with any correctly decoded packet may be demodulated and decoded based on all detected symbols available for that packet.

    Abstract translation: 要解决的问题:提供一种在准正交通信系统中通过具有干扰消除的H-ARQ传输来接收分组的方法。 解决方案:为了接收具有干扰消除的分组,在这些分组使用的时间频率块上接收分组的块传输。 对输入符号执行接收机空间处理以获得检测符号。 对于正确解码的每个分组,分组的传输被终止,并且估计由于分组引起的干扰。 对干扰消除的符号进行接收机空间处理,以获得由所有正确解码的分组使用的所有时间频率块的新的检测符号。 至少部分地与任何正确解码的分组进行错误解码和重叠的每个分组可以基于可用于该分组的所有检测到的符号进行解调和解码。 版权所有(C)2012,JPO&INPIT

    Adaptive sectorization in cellular system
    63.
    发明专利
    Adaptive sectorization in cellular system 有权
    细胞系统中的自适应分化

    公开(公告)号:JP2012105295A

    公开(公告)日:2012-05-31

    申请号:JP2011270456

    申请日:2011-12-09

    CPC classification number: H04W16/00 H04W16/24 H04W16/28 H04W72/046 H04W72/085

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and a method for enhancing performance in a wireless communication system using beamforming transmission.SOLUTION: The method can include determining channel information for a user, and assigning a user device to at least one of a wide beam or at least one predetermined narrow beam. Further, the method includes assigning another user device during the same time period to at least some overlapping frequencies and the other one of the wide beam and the at least one predetermined narrow beam as the user device. Moreover, the at least one predetermined narrow beam includes a cluster of narrow beams and another cluster of narrow beams. In this case, the first cluster and the another cluster do not overlap.

    Abstract translation: 解决的问题:提供一种使用波束形成传输来提高在无线通信系统中的性能的装置和方法。 解决方案:该方法可以包括确定用户的频道信息,以及将用户设备分配给宽光束或至少一个预定窄光束中的至少一个。 此外,该方法包括将相同时间段内的另一个用户设备分配给至少一些重叠的频率,以及将宽波束和至少一个预定窄波束中的另一个用户设备用作用户设备。 此外,至少一个预定的窄波束包括一束窄波束和另一束窄波束。 在这种情况下,第一个集群和另一个集群不重叠。 版权所有(C)2012,JPO&INPIT

    Power control for wireless communication systems
    65.
    发明专利
    Power control for wireless communication systems 有权
    无线通信系统的功率控制

    公开(公告)号:JP2012090280A

    公开(公告)日:2012-05-10

    申请号:JP2011246456

    申请日:2011-11-10

    Abstract: PROBLEM TO BE SOLVED: To control transmit power of terminals to reduce interference.SOLUTION: A terminal may send a first transmission (e.g., for pilot or signaling) on a reverse link, receive feedback (e.g., a power control command or an erasure indicator) for the first transmission, and adjust a reference power level based on the feedback. The terminal may also receive interference information and possible other parameters such as a pilot quality indicator (PQI), an offset factor, and a boost factor from a sector. The terminal may determine transmit power for a second transmission to the sector based on the interference information, the reference power level, and/or the other parameters. The terminal may receive the feedback from one sector and may send the second transmission with CDMA or OFDMA to the same sector or a different sector.

    Abstract translation: 要解决的问题:控制端子的发射功率以减少干扰。 解决方案:终端可以在反向链路上发送第一传输(例如,用于导频或信令),接收用于第一传输的反馈(例如,功率控制命令或擦除指示符),并且调整参考功率电平 基于反馈。 终端还可以从扇区接收干扰信息和可能的其他参数,例如导频质量指示符(PQI),偏移因子和增强因子。 终端可以基于干扰信息,参考功率电平和/或其他参数来确定对扇区的第二传输的发射功率。 终端可以从一个扇区接收反馈,并且可以将具有CDMA或OFDMA的第二传输发送到同一扇区或不同扇区。 版权所有(C)2012,JPO&INPIT

    On-demand reverse-link pilot transmission
    66.
    发明专利
    On-demand reverse-link pilot transmission 审中-公开
    根据需求反向引导传输

    公开(公告)号:JP2012075095A

    公开(公告)日:2012-04-12

    申请号:JP2011198417

    申请日:2011-09-12

    CPC classification number: H04L25/0202 H04W72/1226 H04W72/1289

    Abstract: PROBLEM TO BE SOLVED: To provide techniques to more efficiently transmit pilots on demand on a reverse link.SOLUTION: Pilots are transmitted on demand on a reverse link and used for channel estimation and data transmission on a forward link. A base station selects at least one terminal for on-demand pilot transmission on the reverse link (210). Each of the at least one selected terminal is a candidate for receiving data transmission on the forward link. The base station assigns each of the at least one selected terminal with a time-frequency allocation (212), which may be for a wideband pilot, a narrowband pilot, or some other type of pilot. The base station receives and processes an on-demand pilot transmitted from each of the at least one selected terminal (216) and derives a channel estimate for the terminal based on the received pilot (218).

    Abstract translation: 要解决的问题:提供技术以在反向链路上根据需要更有效地发射飞行员。 解决方案:飞行员根据需要在反向链路上传输,用于前向链路上的信道估计和数据传输。 基站在反向链路(210)上选择至少一个用于按需导频发送的终端。 所述至少一个所选终端中的每一个是用于在前向链路上接收数据传输的候选。 基站将至少一个所选择的终端中的每一个分配给可以用于宽带导频,窄带导频或某种其他类型的导频的时间 - 频率分配(212)。 基站接收并处理从至少一个所选终端(216)中的每一个发送的按需导频,并且基于接收到的导频(218)导出终端的信道估计。 版权所有(C)2012,JPO&INPIT

    Pilot signal transmission for orthogonal frequency division wireless communication system
    67.
    发明专利
    Pilot signal transmission for orthogonal frequency division wireless communication system 有权
    正交频分区无线通信系统的引导信号传输

    公开(公告)号:JP2012016033A

    公开(公告)日:2012-01-19

    申请号:JP2011176804

    申请日:2011-08-12

    CPC classification number: H04L5/0048 H04L5/0023

    Abstract: PROBLEM TO BE SOLVED: To provide a pilot symbol pattern for a pilot symbol transmitted from a mobile station or a base station.SOLUTION: The wireless communication apparatus comprises: at least one antenna; a memory that stores at least one time selective pilot pattern designed for a time selective channel and at least one frequency selective pilot pattern designed for a frequency selective channel; and a processor coupled with the at least one antenna and the memory, the processor selecting one pilot pattern of the at least one time selective pilot pattern and the at least one frequency selective pilot pattern, and setting pilot symbols of the selected pilot pattern to locations close to the edges of the hop region in accordance with a first order term of a communication channel.

    Abstract translation: 要解决的问题:提供从移动台或基站发送的导频符号的导频符号模式。 解决方案:无线通信装置包括:至少一个天线; 存储器,其存储为时间选择信道设计的至少一个时间选择性导频模式和为频率选择信道设计的至少一个频率选择性导频模式; 以及与所述至少一个天线和所述存储器耦合的处理器,所述处理器选择所述至少一个时间选择性导频模式和所述至少一个频率选择性导频模式的一个导频模式,以及将所选择的导频模式的导频符号设置到位置 根据通信信道的一阶项,接近跳跃区域的边缘。 版权所有(C)2012,JPO&INPIT

    atribuição de recursos de link reverso e controle de potência de link reverso para sistemas de comunicação sem fio

    公开(公告)号:BRPI0719661B1

    公开(公告)日:2020-03-24

    申请号:BRPI0719661

    申请日:2007-10-12

    Applicant: QUALCOMM INC

    Abstract: atribuição de recursos de link reverso e controle de potência de link reverso para sistemas de comunicação sem fio é provida a atribuição de densidade de espectro de potência para terminais de acesso em um ambiente de rede sem fio. são determinadas informações de atribuição que incluem a atribuição de recursos de transmissão do link reverso e é criada uma instrução de controle de potência para o recurso de transmissão de link reverso atribuído. uma mensagem de atribuição que inclui tanto as informações de atribuição quanto a instrução de controle de potência é formatada e comunicada aos terminais de acesso. a mensagem de atribuição inclui um campo de controle de potência de link reverso que indica uma densidade espectral de potência de transmissão atribuída pelo ponto de acesso para a transmissão de link reverso pelo terminal.

    canais de sinalização variados para um link reverso em um sistema de comunicação sem fio

    公开(公告)号:BRPI0617871B1

    公开(公告)日:2019-09-10

    申请号:BRPI0617871

    申请日:2006-10-27

    Applicant: QUALCOMM INC

    Abstract: canais de sinalização variados para um link reverso em um sistema de comunicação sem fio. sinalização é eficientemente enviada em um segmento de controle cdma configurável. para enviar sinalização, parâmetros de transmissão para o segmento de controle cdma para um setor servidor são determinados. estes parâmetros podem indicar o tamanho de segmento de controle cdma, os quadros nos quais o segmento de controle cdma é enviado, os canais de sinalização a serem enviados no segmento de controle cdma, e assim por diante. os canais de sinalização cdma habilitados para um terminal e o intervalo de transmissão médio para cada canal de sinalização cdma habilitado são determinados. para cada quadro no qual o segmento de controle cdma é enviado, os canais de sinalização a serem enviados no segmento de controle cdma naquele quadro são determinados. a sinalização para cada canal de sinalização é processada (por ex., codificada, canalizada, graduada e embaralhada). a sinalização processada para todos os canais de sinalização é combinada e mapeada em uma região de tempo frequência usada para o segmento de controle cdma no quadro.

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