Method and node related to channel estimation

    公开(公告)号:US09603035B2

    公开(公告)日:2017-03-21

    申请号:US14350920

    申请日:2011-10-13

    摘要: A method comprises determining a first and a second sub-carrier associated with a channel, and multiplying a signal received on the first sub-carrier with a first number to form a first resulting signal. The first number multiplied with a known signal transmitted by a second transmitting node on the first sub-carrier equals a constant value. A signal received on the second sub-carrier is multiplied with a second number to form a second resulting signal. The second number multiplied with the known signal transmitted by the second transmitting node on the second sub-carrier equals the constant value. The second resulting signal is subtracted from the first resulting signal to obtain a signal for which interference from the second transmitting node is suppressed, and the channel is estimated based on the obtained signal.

    METHOD AND NODE RELATED TO CHANNEL ESTIMATION
    2.
    发明申请
    METHOD AND NODE RELATED TO CHANNEL ESTIMATION 有权
    与通道估计相关的方法和节点

    公开(公告)号:US20140247747A1

    公开(公告)日:2014-09-04

    申请号:US14350920

    申请日:2011-10-13

    IPC分类号: H04W24/02 H04L25/02

    摘要: A method comprises determining a first and a second sub-carrier associated with a channel, and multiplying a signal received on the first sub-carrier with a first number to form a first resulting signal. The first number multiplied with a known signal transmitted by a second transmitting node on the first sub-carrier equals a constant value. A signal received on the second sub-carrier is multiplied with a second number to form a second resulting signal. The second number multiplied with the known signal transmitted by the second transmitting node on the second sub-carrier equals the constant value. The second resulting signal is subtracted from the first resulting signal to obtain a signal for which interference from the second transmitting node is suppressed, and the channel is estimated based on the obtained signal.

    摘要翻译: 一种方法包括确定与信道相关联的第一和第二子载波,以及将在第一子载波上接收的信号与第一数量相乘以形成第一结果信号。 与第一子载波上的第二发送节点发送的已知信号相乘的第一个数字等于一个恒定值。 在第二子载波上接收的信号乘以第二数字以形成第二结果信号。 与第二子载波上的第二发送节点发送的已知信号相乘的第二数字等于该常数值。 从第一结果信号中减去第二结果信号,以获得抑制来自第二发送节点的干扰的信号,并且基于获得的信号来估计信道。

    Method and arrangement for acquiring scheduling information
    3.
    发明授权
    Method and arrangement for acquiring scheduling information 有权
    用于获取调度信息的方法和装置

    公开(公告)号:US09585161B2

    公开(公告)日:2017-02-28

    申请号:US14417363

    申请日:2012-08-01

    摘要: A method executed in a first radio base station located in a first cell is provided for acquiring scheduling information associated with a second radio base station located in a neighboring cell, where the method comprises listening, via an air interface, to scheduling information transmitted, via a downlink control channel, from the second radio base station; decoding the received scheduling information, and providing the decoded scheduling information to an uplink receiver and/or uplink scheduler associated with the radio base station, such that the uplink receiver and/or uplink scheduler will be able to enhance its performance on the basis of the received scheduling information. An arrangement for executing the suggested method is also provided.

    摘要翻译: 提供了一种在位于第一小区中的第一无线电基站中执行的方法,用于获取与位于相邻小区中的第二无线电基站相关联的调度信息,其中所述方法包括:经由空中接口,经由 下行链路控制信道; 对所接收的调度信息进行解码,以及将解码的调度信息提供给与无线电基站相关联的上行链路接收机和/或上行链路调度器,使得上行链路接收机和/或上行链路调度器将能够基于 收到调度信息。 还提供了用于执行所提出的方法的装置。

    Method and Arrangement for Acquiring Scheduling Information
    4.
    发明申请
    Method and Arrangement for Acquiring Scheduling Information 有权
    获取计划信息的方法和安排

    公开(公告)号:US20150208435A1

    公开(公告)日:2015-07-23

    申请号:US14417363

    申请日:2012-08-01

    IPC分类号: H04W72/12 H04L5/14 H04W72/04

    摘要: A method executed in a first radio base station located in a first cell is provided for acquiring scheduling information associated with a second radio base station located in a neighboring cell, where the method comprises listening, via an air interface, to scheduling information transmitted, via a downlink control channel, from the second radio base station; decoding the received scheduling information, and providing the decoded scheduling information to an uplink receiver and/or uplink scheduler associated with the radio base station, such that the uplink receiver and/or uplink scheduler will be able to enhance its performance on the basis of the received scheduling information. An arrangement for executing the suggested method is also provided.

    摘要翻译: 提供了一种在位于第一小区中的第一无线电基站中执行的方法,用于获取与位于相邻小区中的第二无线电基站相关联的调度信息,其中所述方法包括:经由空中接口,经由 下行链路控制信道; 对所接收的调度信息进行解码,以及将解码的调度信息提供给与无线电基站相关联的上行链路接收机和/或上行链路调度器,使得上行链路接收机和/或上行链路调度器将能够基于 收到调度信息。 还提供了用于执行所提出的方法的装置。

    Method and device for determining available spectrums

    公开(公告)号:US09762421B2

    公开(公告)日:2017-09-12

    申请号:US14239223

    申请日:2012-08-10

    IPC分类号: H04L27/00 H04W16/14

    CPC分类号: H04L27/0006 H04W16/14

    摘要: A method and device for determining available spectrums is disclosed in embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, with consideration on the bi-directionality of the interference between wireless communication systems, when introduction of the cognitive system is required, the corresponding frequency will be determined as an available frequency only in the case the incumbent system and the cognitive system can be simultaneously guaranteed to meet the corresponding coexistence criterion among the corresponding frequency and adjacent frequencies thereof, thus ensuring that the determined available frequency band guarantees that the normal operation of the incumbent system is not interfered by the cognitive system while ensuring that the newly-introduced cognitive system can also operate normally without interference of the incumbent system, thereby improving the communication quality of the wireless communication systems.

    METHOD AND DEVICE FOR DETERMINING AVAILABLE SPECTRUMS
    7.
    发明申请
    METHOD AND DEVICE FOR DETERMINING AVAILABLE SPECTRUMS 有权
    用于确定可用光谱的方法和装置

    公开(公告)号:US20150163080A1

    公开(公告)日:2015-06-11

    申请号:US14239223

    申请日:2012-08-10

    IPC分类号: H04L27/00 H04W16/14

    CPC分类号: H04L27/0006 H04W16/14

    摘要: A method and device for determining available spectrums is disclosed in embodiments of the present invention. By applying the technical solution of the embodiments of the present invention, with consideration on the bi-directionality of the interference between wireless communication systems, when introduction of the cognitive system is required, the corresponding frequency will be determined as an available frequency only in the case the incumbent system and the cognitive system can be simultaneously guaranteed to meet the corresponding coexistence criterion among the corresponding frequency and adjacent frequencies thereof, thus ensuring that the determined available frequency band guarantees that the normal operation of the incumbent system is not interfered by the cognitive system while ensuring that the newly-introduced cognitive system can also operate normally without interference of the incumbent system, thereby improving the communication quality of the wireless communication systems.

    摘要翻译: 在本发明的实施例中公开了一种用于确定可用频谱的方法和装置。 通过应用本发明的实施例的技术方案,考虑到无线通信系统之间的干扰的双向性,当需要引入认知系统时,相应的频率将仅被确定为可用频率 可以同时保证现有系统和认知系统在相应的频率和相邻频率之间达到相应的共存标准,从而确保确定的可用频带保证现有系统的正常运行不受认知干扰 系统,同时确保新引入的认知系统也可以正常工作而不受现任系统的干扰,从而提高无线通信系统的通信质量。

    Method and arrangement in wireless communications network
    9.
    发明授权
    Method and arrangement in wireless communications network 有权
    无线通信网络中的方法和布置

    公开(公告)号:US08948759B2

    公开(公告)日:2015-02-03

    申请号:US13255028

    申请日:2009-03-23

    IPC分类号: H04W36/00 H04W28/06

    CPC分类号: H04W36/0083 H04W28/06

    摘要: A method in a wireless terminal (110) for sending a measurement report to a serving base station (130) before handover is provided. The wireless terminal (110) and the base station (130) are comprised in a cell in a wireless communications system. The wireless terminal (110) is arranged to use a standard size message or a reduced size message for sending a measurement report before a handover. The wireless terminal (110) obtains (601) information about the cell size and/or the system load. When the cell size exceeds a predetermined value or when the system load exceeds a predetermined value, the wireless terminal (110) sends (605) a measurement report to the base station (130), using the reduced size message.

    摘要翻译: 提供了一种用于在切换之前向服务基站(130)发送测量报告的无线终端(110)中的方法。 无线终端(110)和基站(130)包括在无线通信系统中的小区中。 无线终端(110)被安排为在切换之前使用标准尺寸消息或缩小尺寸的消息来发送测量报告。 无线终端(110)获得关于小区大小和/或系统负载的信息(601)。 当小区大小超过预定值时,或者当系统负载超过预定值时,无线终端(110)使用缩小尺寸的消息向基站(130)发送测量报告(605)(605)。