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    • 1. 发明授权
    • Management of uplink resources in multi-carrier CDMA system
    • 多载波CDMA系统上行资源管理
    • US08498273B2
    • 2013-07-30
    • US12537148
    • 2009-08-06
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • H04B1/707
    • H04W72/0486H04W72/0453
    • The method an apparatus described herein manages uplink resources to increase spectral efficiency and system capacity. According to one embodiment of the present invention, a base station may be assigned two or more downlink carriers for downlink transmission and two or more corresponding uplink carriers. In a multi-carrier mode, the base station may transmit signals on two or more downlink carriers to the same mobile terminal, and receive signals from the mobile terminal on one of the paired uplink terminals. The uplink carriers can be operated at different interference levels and the uplink traffic can be divided between the available uplink carriers based on the type of traffic and/or data transmission parameters. The mobile terminals may also be allowed to switch between the uplink carriers to improve overall efficiency.
    • 本文描述的方法和装置管理上行链路资源以提高频谱效率和系统容量。 根据本发明的一个实施例,可以为基站分配用于下行链路传输的两个或更多个下行链路载波和两个或更多个对应的上行链路载波。 在多载波模式中,基站可以在两个或多个下行链路载波上发送信号到同一个移动终端,并且在一个上行链路终端中的一个上接收来自移动终端的信号。 上行链路载波可以以不同的干扰级别操作,并且可以基于业务类型和/或数据传输参数在可用的上行链路载波之间划分上行链路业务。 还可以允许移动终端在上行链路载波之间切换以提高整体效率。
    • 2. 发明授权
    • Management of uplink resources in multi-carrier CDMA system
    • 多载波CDMA系统上行资源管理
    • US09253783B2
    • 2016-02-02
    • US13403683
    • 2012-02-23
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • H04W72/04
    • H04W72/0486H04W72/0453
    • The method an apparatus described herein manages uplink resources to increase spectral efficiency and system capacity. According to one embodiment of the present invention, a base station may be assigned two or more downlink carriers for downlink transmission and two or more corresponding uplink carriers. In a multi-carrier mode, the base station may transmit signals on two or more downlink carriers to the same mobile terminal, and receive signals from the mobile terminal on one of the paired uplink terminals. The uplink carriers can be operated at different interference levels and the uplink traffic can be divided between the available uplink carriers based on the type of traffic and/or data transmission parameters. The mobile terminals may also be allowed to switch between the uplink carriers to improve overall efficiency.
    • 本文描述的装置的方法管理上行链路资源以提高频谱效率和系统容量。 根据本发明的一个实施例,可以为基站分配用于下行链路传输的两个或更多个下行链路载波和两个或更多个对应的上行链路载波。 在多载波模式中,基站可以在两个或多个下行链路载波上发送信号到同一个移动终端,并且在一个上行链路终端中的一个上接收来自移动终端的信号。 上行链路载波可以以不同的干扰级别操作,并且可以基于业务类型和/或数据传输参数在可用的上行链路载波之间划分上行链路业务。 还可以允许移动终端在上行链路载波之间切换以提高整体效率。
    • 4. 发明申请
    • MANAGEMENT OF UPLINK RESOURCES IN MULTI-CARRIER CDMA SYSTEM
    • 多载波CDMA系统中的上行资源管理
    • US20120155435A1
    • 2012-06-21
    • US13403683
    • 2012-02-23
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • Yi-Pin Eric WangAnders WallénStephen Grant
    • H04W72/04H04J3/02H04B7/216
    • H04W72/0486H04W72/0453
    • The method an apparatus described herein manages uplink resources to increase spectral efficiency and system capacity. According to one embodiment of the present invention, a base station may be assigned two or more downlink carriers for downlink transmission and two or more corresponding uplink carriers. In a multi-carrier mode, the base station may transmit signals on two or more downlink carriers to the same mobile terminal, and receive signals from the mobile terminal on one of the paired uplink terminals. The uplink carriers can be operated at different interference levels and the uplink traffic can be divided between the available uplink carriers based on the type of traffic and/or data transmission parameters. The mobile terminals may also be allowed to switch between the uplink carriers to improve overall efficiency.
    • 本文描述的方法和装置管理上行链路资源以提高频谱效率和系统容量。 根据本发明的一个实施例,可以为基站分配用于下行链路传输的两个或更多个下行链路载波和两个或更多个对应的上行链路载波。 在多载波模式中,基站可以在两个或多个下行链路载波上发送信号到同一个移动终端,并且在一个上行链路终端中的一个上接收来自移动终端的信号。 上行链路载波可以以不同的干扰级别操作,并且可以基于业务类型和/或数据传输参数在可用的上行链路载波之间划分上行链路业务。 还可以允许移动终端在上行链路载波之间切换以提高整体效率。
    • 5. 发明申请
    • CONTROL SIGNAL AGGREGATION IN A MULTI-CARRIER WCDMA SYSTEM
    • 多载波WCDMA系统中的信号聚合控制
    • US20110110337A1
    • 2011-05-12
    • US12614526
    • 2009-11-09
    • Stephen GrantAnders WallénYi-Pin Eric Wang
    • Stephen GrantAnders WallénYi-Pin Eric Wang
    • H04W72/04
    • H04W72/0406H04B1/707H04L1/001H04L1/0027H04L1/0029H04L5/001H04L5/0016H04L5/0053H04L5/0055H04L5/06
    • Methods and apparatus are disclosed for transmitting data to a remote node via each of two or more transmitted carrier signals, wherein a distinct outbound packet data traffic channel is mapped to each transmitted carrier signal. In an exemplary method, aggregated control channel data is formed by combining control channel data corresponding to each of two or more received carrier signals, simultaneously transmitting traffic channel data to the remote node on each of the two or more outbound packet data traffic channels, and transmitting the aggregated control channel data using one or more physical control channels mapped to a first one of the transmitted carrier signals. In particular, these methods and apparatus may be applied to a multi-carrier High-Speed Packet Access (HSPA) system.
    • 公开了用于经由两个或更多个发送的载波信号中的每一个将数据发送到远程节点的方法和装置,其中将不同的出站分组数据业务信道映射到每个发送的载波信号。 在一种示例性方法中,通过组合对应于两个或多个接收到的载波信号中的每一个的控制信道数据来形成聚合控制信道数据,同时在两个或更多个出站分组数据业务信道中的每一个上向远程节点发送业务信道数据,以及 使用映射到所发送的载波信号中的第一个的一个或多个物理控制信道来发送所述聚合的控制信道数据。 特别地,这些方法和装置可以应用于多载波高速分组接入(HSPA)系统。
    • 7. 发明授权
    • Extending the set of addressable interferers for interference mitigation
    • 扩展用于干扰减轻的一组可寻址干扰源
    • US08938038B2
    • 2015-01-20
    • US13364856
    • 2012-02-02
    • Andres ReialAnders Wallén
    • Andres ReialAnders Wallén
    • H03D3/00
    • H04J11/005H04B1/7103H04B1/7107H04J11/0059
    • Techniques for expanding the set of addressable interfering signals in an interference cancelling receiver are described, where the task of control message detection from interfering cells is integrated in an iterative receiver process where increasingly better a priori information on the received data signals from the previous iteration is used to detect additional control messages and successively grow the set of interfering signals included in the receiver's interference mitigation processing. In an example method, first estimated symbols for a desired signal are generated. A control channel corresponding to a first interfering signal is detected, where said detecting is based on the first estimated symbols. Signal characteristics information for the first interfering signal is then derived from the detected control channel signal, and used to generate second estimated symbols for the desired signal, using an interference-mitigation technique to mitigate the effects of the interfering signal.
    • 描述了用于在干扰消除接收机中扩展可寻址干扰信号集合的技术,其中来自干扰小区的控制消息检测的任务被集成在迭代接收机过程中,其中越来越好的来自先前迭代的接收数据信号的先验信息是 用于检测附加的控制消息并且连续地增加包括在接收机的干扰减轻处理中的干扰信号集合。 在示例性方法中,产生用于期望信号的第一估计符号。 检测对应于第一干扰信号的控制信道,其中所述检测基于第一估计符号。 然后从检测到的控制信道信号导出第一干扰信号的信号特征信息,并且使用干扰减轻技术来产生用于期望信号的第二估计符号,以减轻干扰信号的影响。
    • 8. 发明授权
    • Apparatus and method for controlling self-interference in a cellular communications system
    • 用于控制蜂窝通信系统中的自干扰的装置和方法
    • US08594000B2
    • 2013-11-26
    • US13144784
    • 2011-06-14
    • Klas JohanssonNiilo MusikkaHenrik NybergAnders Wallén
    • Klas JohanssonNiilo MusikkaHenrik NybergAnders Wallén
    • H04B1/44
    • H04W72/082H04W72/0453H04W88/08
    • The invention relates to a radio base station (102) and method in a radio base station of a cellular communications system (100) for controlling self-interference. The radio base station (102) supports communication with a user equipment (101) using multiple uplink and multiple downlink carriers (104a, 104b, 105a, 105b). The method comprises detecting a degraded downlink performance on a downlink carrier (105a) due to self-interference by determining that a set of predefined conditions applies. The method further comprises executing, in response to detection of the degraded downlink performance, an action to reduce self-interference between the uplink and downlink carriers (104a, 104b, 105a, 105b). The action is one of: uplink scheduling to reduce self-interference, deactivation of a secondary uplink carrier (14a, 104b), deactivation of a secondary downlink carrier (105a, 105b), and initiation of carrier reconfiguration to reduce self-interference. Accordingly, benefits of using multi-carrier operation may be balanced against a possible associated drawback of degraded downlink performance due to self-interference.
    • 本发明涉及用于控制自干扰的蜂窝通信系统(100)的无线基站中的无线基站(102)和方法。 无线电基站(102)支持使用多个下行链路载波(104a,104b,105a,105b)与用户设备(101)的通信。 该方法包括通过确定一组预定义条件适用来检测由于自干扰在下行链路载波(105a)上的劣化的下行链路性能。 该方法还包括响应于对劣化的下行链路性能的检测,执行减少上行链路和下行链路载波(104a,104b,105a,105b)之间的自干扰的动作。 该动作是:减少自干扰的上行链路调度,二次上行链路载波(14a,104b)的去激活,二次下行链路载波(105a,105b)的去激活以及载波重配置的启动以减少自干扰。 因此,使用多载波操作的好处可以与由于自干扰引起的下行链路性能下降的可能的相关缺点进行平衡。
    • 9. 发明授权
    • Relative frequency error compensation for multi-carrier receivers
    • 多载波接收机的相对频率误差补偿
    • US08041318B2
    • 2011-10-18
    • US12248756
    • 2008-10-09
    • Oskar DruggeFarshid GhasemzadehAnders Wallén
    • Oskar DruggeFarshid GhasemzadehAnders Wallén
    • H04B17/02H04K3/00
    • H04L27/0014H04L2027/0024
    • A wireless receiver utilizes a single analog oscillator to down-convert multi-carrier signals in one or more receiver front-end paths. The received signals are digitized, and the different carrier signals received at each antenna are separated in digital domain by mixing the digitized signal from each antenna with a carrier/antenna separation digital oscillator to down-convert a desired carrier signal and low-pass filtering to remove unwanted carriers. A coarse frequency correction adjusts the analog oscillator, and fine frequency corrections adjust digital oscillators mixing with the separated signals. In one embodiment, the fine frequency correction is applied to the carrier/antenna separation digital oscillators in the separation function. In another embodiment, the fine frequency correction is applied to frequency adjustment digital oscillators mixing with the separated signals. The frequency corrections may be based on reference symbols in the received signals.
    • 无线接收机利用单个模拟振荡器来降低一个或多个接收机前端路径中的多载波信号。 接收的信号被数字化,并且在每个天线处接收的不同的载波信号在数字域中被分离,通过将来自每个天线的数字化信号与载波/天线分离数字振荡器混频以将期望的载波信号和低通滤波下变频 删除不需要的运营商。 粗略的频率校正调整模拟振荡器,精细的频率校正调整与分离的信号混合的数字振荡器。 在一个实施例中,精细频率校正被应用于分离功能中的载波/天线分离数字振荡器。 在另一个实施例中,精细频率校正被应用于与分离的信号混合的频率调节数字振荡器。 频率校正可以基于接收信号中的参考符号。