Detecting the number of transmit antennas in a base station

    公开(公告)号:US08472567B2

    公开(公告)日:2013-06-25

    申请号:US13608205

    申请日:2012-09-10

    IPC分类号: H04B7/06

    摘要: Data is scrambled at a transmitter according to one of a number of predetermined scrambling sequences which are associated with a particular one of a number of predetermined transmit antenna diversity schemes (i.e., a specific number of transmit antenna ports). Received data is decoded using one or more of the known transmit antenna diversity schemes and the scrambled data is descrambled according to a corresponding descrambling sequence (related to the scrambling sequence). Based on the descrambled data, the receiver determines which transmit antenna diversity scheme (i.e., the number of antenna ports) is used by the transmitter. In one specific embodiment, CRC parity data is scrambled in the transmitter and the receiver descrambles the recovered CRC parity data according to a descrambling sequence, computes CRC parity data from the received data, and compares the descrambled CRC parity data to the newly computed CRC parity data.

    Detecting the number of transmit antennas in a base station
    2.
    发明申请
    Detecting the number of transmit antennas in a base station 有权
    检测基站中发射天线的数量

    公开(公告)号:US20090060088A1

    公开(公告)日:2009-03-05

    申请号:US12221867

    申请日:2008-08-07

    IPC分类号: H04L27/00

    摘要: Data is scrambled at a transmitter according to one of a number of predetermined scrambling sequences which are associated with a particular one of a number of predetermined transmit antenna diversity schemes (i.e., a specific number of transmit antenna ports). Received data is decoded using one or more of the known transmit antenna diversity schemes and the scrambled data is descrambled according to a corresponding descrambling sequence (related to the scrambling sequence). Based on the descrambled data, the receiver determines which transmit antenna, diversity scheme (i.e., the number of antenna ports) is used by the transmitter. In one specific embodiment, CRC parity data is scrambled in the transmitter and the receiver descrambles the recovered CRC parity data according to a descrambling sequence, computes CRC parity data from the received data, and compares the descrambled CRC parity data to the newly computed CRC parity data.

    摘要翻译: 根据与多个预定发射天线分集方案(即,特定数量的发射天线端口)中的特定数量的特定一个相关联的多个预定加扰序列之一,在发射机处对数据进行加扰。 使用已知的发射天线分集方案中的一个或多个对接收的数据进行解码,并且根据相应的解扰序列(与加扰序列有关)来对加密的数据进行解扰。 基于解扰数据,接收机确定发射机使用哪个发射天线,分集方案(即,天线端口的数量)。 在一个具体实施例中,CRC奇偶校验数据在发射机中被加扰,并且接收机根据解扰序列对恢复的CRC奇偶校验数据进行解扰,从接收到的数据计算CRC奇偶校验数据,并将解扰的CRC奇偶校验数据与新计算的CRC奇偶校验比较 数据。

    System and method for adjusting downlink channel quality index in a wireless communications system
    3.
    发明授权
    System and method for adjusting downlink channel quality index in a wireless communications system 有权
    用于调整无线通信系统中的下行链路信道质量指标的系统和方法

    公开(公告)号:US08849216B2

    公开(公告)日:2014-09-30

    申请号:US12831050

    申请日:2010-07-06

    IPC分类号: H04B7/00 H04L1/00

    CPC分类号: H04L1/0026

    摘要: In accordance with an embodiment, a method of operating a controller in a wireless communication system includes receiving channel feedback information from a communications node, adjusting the channel feedback information based on a measurement of interference from neighboring controllers, adjusting transmit parameters of the controller using the adjusted channel feedback information, and transmitting to the communications node using the adjusted transmit parameters.

    摘要翻译: 根据实施例,在无线通信系统中操作控制器的方法包括从通信节点接收信道反馈信息,基于来自相邻控制器的干扰的测量来调整信道反馈信息,使用所述控制器调整传输参数 调整后的信道反馈信息,以及使用调整后的发送参数向通信节点发送。

    System and Method for Semi-Static Downlink Inter-Cell Interference Coordination for Wireless Communications
    5.
    发明申请
    System and Method for Semi-Static Downlink Inter-Cell Interference Coordination for Wireless Communications 有权
    用于无线通信的半静态下行小区间干扰协调的系统和方法

    公开(公告)号:US20110003598A1

    公开(公告)日:2011-01-06

    申请号:US12827177

    申请日:2010-06-30

    IPC分类号: H04W72/04

    摘要: In accordance with an embodiment, a method of operating a base station in a wireless system, includes partitioning a frequency band into at least one band of a first type and at least one band of a second type, and coordinating the partitioning with at least one further base station. The at least one band of the first type includes a band on which the base station transmits power proportional to a distance of a user device from the base station, and the at least one band of the second type comprises a band on which base station transmits a data rate inversely proportional to a distance of a user device from the base station.

    摘要翻译: 根据实施例,一种在无线系统中操作基站的方法包括将频带划分成第一类型的至少一个频带和至少一个第二类型的频带,并且与至少一个 进一步的基站。 所述第一类型的至少一个频带包括频带,所述基站在所述频带上发送与所述基站的用户设备的距离成比例的功率,并且所述第二类型的所述至少一个频带包括基站发送的频带 数据速率与用户设备与基站的距离成反比。

    System and method for spatial multiplexing-based multiple antenna broadcast/multicast transmission
    7.
    发明授权
    System and method for spatial multiplexing-based multiple antenna broadcast/multicast transmission 有权
    用于基于空间复用的多天线广播/组播传输的系统和方法

    公开(公告)号:US08929325B2

    公开(公告)日:2015-01-06

    申请号:US12865627

    申请日:2008-02-01

    摘要: Methods and devices are provided for implementing two types of sub-channel arrangements. A first type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion of a transmission resource, transmitting broadcast traffic on at least one first antenna of a plurality of antennas in the first traffic portion using a first sub-channelization, transmitting multicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, in the first traffic portion using a second sub-channelization, and transmitting unicast traffic on at least one antenna of the plurality of antennas in the second traffic portion using a third sub-channelization. A second type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion, wherein for a portion of the transmission resource, a portion of the first traffic portion overlaps with a portion of the second traffic portion. In the portion of the transmission resource in which a portion of the first traffic portion overlaps with a portion of the second traffic portion, the channel arrangement involves transmitting broadcast/multicast traffic on at least one first antenna of a plurality of antennas using a first sub-channelization and b) transmitting unicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, using a second sub-channelization. The first, second and third sub-channelizations may be based on either one of or a combination of FDM sub-channelization and TDM sub-channelization.

    摘要翻译: 提供了用于实现两种类型的子通道布置的方法和装置。 第一类型的子信道布置涉及定义传输资源的第一业务部分和第二业务部分,使用第一子信道化在第一业务部分中的多个天线的至少一个第一天线上发送广播业务, 在所述多个天线的至少一个第二天线上发射多播业务,所述至少一个第二天线与所述至少一个第一天线不同,所述第一天线在所述第一业务部分中使用第二子信道化,并且至少在至少一个 第二业务部分中的多个天线中的一个天线使用第三子信道化。 第二类型的子信道布置涉及定义第一业务部分和第二业务部分,其中对于传输资源的一部分,第一业务部分的一部分与第二业务部分的一部分重叠。 在第一业务部分的一部分与第二业务部分的一部分重叠的传输资源的部分中,信道配置涉及使用第一子信道在多个天线的至少一个第一天线上发送广播/组播业务 - 通道化和b)在所述多个天线的至少一个第二天线上发射单播业务,所述至少一个第二天线与所述至少一个第一天线不同,使用第二子信道化。 第一,第二和第三子信道化可以基于FDM子信道化和TDM子信道化的任何一个或组合。

    Detecting the Number of Transmit Antennas in a Base Station
    8.
    发明申请
    Detecting the Number of Transmit Antennas in a Base Station 有权
    检测基站中发射天线的数量

    公开(公告)号:US20120328040A1

    公开(公告)日:2012-12-27

    申请号:US13608205

    申请日:2012-09-10

    IPC分类号: H04B7/06

    摘要: Data is scrambled at a transmitter according to one of a number of predetermined scrambling sequences which are associated with a particular one of a number of predetermined transmit antenna diversity schemes (i.e., a specific number of transmit antenna ports). Received data is decoded using one or more of the known transmit antenna diversity schemes and the scrambled data is descrambled according to a corresponding descrambling sequence (related to the scrambling sequence). Based on the descrambled data, the receiver determines which transmit antenna diversity scheme (i.e., the number of antenna ports) is used by the transmitter. In one specific embodiment, CRC parity data is scrambled in the transmitter and the receiver descrambles the recovered CRC parity data according to a descrambling sequence, computes CRC parity data from the received data, and compares the descrambled CRC parity data to the newly computed CRC parity data.

    摘要翻译: 根据与多个预定发射天线分集方案(即,特定数量的发射天线端口)中的特定数量的特定一个相关联的多个预定加扰序列之一,在发射机处对数据进行加扰。 使用已知的发射天线分集方案中的一个或多个对接收的数据进行解码,并且根据相应的解扰序列(与加扰序列有关)来对加密的数据进行解扰。 基于解扰数据,接收机确定发射机使用哪个发射天线分集方案(即,天线端口的数目)。 在一个具体实施例中,CRC奇偶校验数据在发射机中被加扰,并且接收机根据解扰序列对恢复的CRC奇偶校验数据进行解扰,从接收到的数据计算CRC奇偶校验数据,并将解扰的CRC奇偶校验数据与新计算的CRC奇偶校验比较 数据。

    System and method for semi-static downlink inter-cell interference coordination for wireless communications
    9.
    发明授权
    System and method for semi-static downlink inter-cell interference coordination for wireless communications 有权
    用于无线通信的半静态下行链路小区间干扰协调的系统和方法

    公开(公告)号:US08340677B2

    公开(公告)日:2012-12-25

    申请号:US12827177

    申请日:2010-06-30

    IPC分类号: H04W72/00

    摘要: In accordance with an embodiment, a method of operating a base station in a wireless system, includes partitioning a frequency band into at least one band of a first type and at least one band of a second type, and coordinating the partitioning with at least one further base station. The at least one band of the first type includes a band on which the base station transmits power proportional to a distance of a user device from the base station, and the at least one band of the second type comprises a band on which base station transmits a data rate inversely proportional to a distance of a user device from the base station.

    摘要翻译: 根据实施例,一种在无线系统中操作基站的方法包括将频带划分成第一类型的至少一个频带和至少一个第二类型的频带,并且与至少一个 进一步的基站。 所述第一类型的至少一个频带包括频带,所述基站在所述频带上发送与所述基站的用户设备的距离成比例的功率,并且所述第二类型的所述至少一个频带包括基站发送的频带 数据速率与用户设备与基站的距离成反比。

    Aspects to support LTE-A downlink hi-order MIMO
    10.
    发明授权
    Aspects to support LTE-A downlink hi-order MIMO 有权
    设计方面支持LTE-A下行高阶MIMO

    公开(公告)号:US08315225B2

    公开(公告)日:2012-11-20

    申请号:US13068836

    申请日:2009-09-21

    IPC分类号: H04W72/00

    摘要: A method of operation of a MIMO transmitter, in a cellular network supporting both legacy standard-compliant mobile terminals and next generation standard-compliant mobile terminals, the method comprising defining a matrix of resource blocks within an information channel of the cellular network, wherein each resource block corresponds to a region of subcarriers of a transmission timeslot at a given frequency subband; assigning a first set of reference signals (RSs) for the legacy standard-compliant mobile terminals to resource blocks at specific locations within the matrix to be transmitted by the MIMO transmitter, the specific locations being defined by, the legacy standard; and assigning a second set of RSs for the next-generation standard-compliant mobile terminals to other resource blocks within the matrix to be transmitted by the MIMO transmitter.

    摘要翻译: 一种在支持传统标准兼容移动终端和下一代标准兼容移动终端的蜂窝网络中的MIMO发射机的操作方法,所述方法包括定义蜂窝网络的信息信道内的资源块矩阵,其中每个 资源块对应于给定频率子带处的传输时隙的子载波的区域; 将传统标准兼容移动终端的第一组参考信号(RS)分配给由MIMO发射机发送的矩阵内的特定位置处的资源块,所述特定位置由传统标准定义; 以及将下一代标准兼容移动终端的第二组RS分配给由MIMO发射机发送的矩阵内的其他资源块。