Data transmission and power control in multihop relay communication system
    41.
    发明专利
    Data transmission and power control in multihop relay communication system 审中-公开
    数字传输和多功能继电器通信系统的功率控制

    公开(公告)号:JP2012151866A

    公开(公告)日:2012-08-09

    申请号:JP2012045159

    申请日:2012-03-01

    CPC classification number: H04W72/04 H04L1/0025 H04L1/0026 H04L2001/0092

    Abstract: PROBLEM TO BE SOLVED: To transmit data with distributed scheduling and centralized scheduling in a multihop relay communication system.SOLUTION: For distributed scheduling, a relay station may generate and send first channel quality information (CQI) to a base station and receive second CQI from a subscriber station. The relay station may receive data sent by the base station based on the first CQI and may resend the data to the subscriber station based on the second CQI. For centralized scheduling, the relay station may generate first CQI for the base station, receive second CQI from the subscriber station, and send both CQIs to the base station. The relay station may receive data sent by the base station based on the first CQI and may resend the data to the subscriber station based on a scheduling decision determined based on the second CQI. Distributed and centralized power controls are also performed.

    Abstract translation: 要解决的问题:在多跳中继通信系统中传输具有分布式调度和集中式调度的数据。 解决方案:对于分布式调度,中继站可以生成并向基站发送第一信道质量信息(CQI),并从订户站接收第二CQI。 中继站可以基于第一CQI接收由基站发送的数据,并且可以基于第二CQI将数据重新发送给用户站。 对于集中式调度,中继站可以为基站生成第一个CQI,从用户站接收第二个CQI,并将两个CQI发送给基站。 中继站可以基于第一CQI接收由基站发送的数据,并且可以基于基于第二CQI确定的调度决定将数据重新发送给用户站。 还执行分布式和集中式电源控制。 版权所有(C)2012,JPO&INPIT

    Reception of h-arq transmissions with interference cancellation in a quasi-orthogonal communication system
    42.
    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
    43.
    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

    Pilot signal transmission for orthogonal frequency division wireless communication system
    44.
    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

    User separation in space division multiple access for multi-carrier communication system
    45.
    发明专利
    User separation in space division multiple access for multi-carrier communication system 审中-公开
    多载波通信系统空间分多址接入用户分离

    公开(公告)号:JP2011188491A

    公开(公告)日:2011-09-22

    申请号:JP2011049544

    申请日:2011-03-07

    CPC classification number: H04B7/0617 H04B7/0452 H04W16/04 H04W16/28

    Abstract: PROBLEM TO BE SOLVED: To provide an apparatus and method for increasing system capacity in a multi-access wireless communication system. SOLUTION: Spatial dimensions are utilized to distinguish between multiple signals utilizing the same channel and thereby increasing system capacity. Signals may be separated by applying beamforming weights based upon the spatial signature of a pair of a user device 104 and a base station 102. Grouping spatially orthogonal or disparate user devices on the same channel facilitates separation of signals and maximization of user device throughput performance. User devices may be reassigned to groups periodically or based upon changes in the spatial relationships between the user devices and the base station. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在多址无线通信系统中增加系统容量的装置和方法。 解决方案:使用空间维度来区分使用相同通道的多个信号,从而增加系统容量。 可以通过基于用户设备104和基站102的一对的空间签名应用波束成形权重来分离信号。在相同信道上对空间正交或不同的用户设备进行分组有助于信号的分离和用户设备吞吐量性能的最大化。 用户设备可以周期性地或基于用户设备和基站之间的空间关系的改变重新分配给组。 版权所有(C)2011,JPO&INPIT

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