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    • 21. 发明申请
    • Detecting the number of transmit antennas in a base station
    • 检测基站中发射天线的数量
    • US20090060088A1
    • 2009-03-05
    • US12221867
    • 2008-08-07
    • Aaron CallardJianglei Ma
    • Aaron CallardJianglei Ma
    • H04L27/00
    • H04W72/005H04B7/0678H04B7/0689H04L5/0092H04W72/0453
    • 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.
    • 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。
    • 23. 发明授权
    • System and method for spatial multiplexing-based multiple antenna broadcast/multicast transmission
    • 用于基于空间复用的多天线广播/组播传输的系统和方法
    • US08929325B2
    • 2015-01-06
    • US12865627
    • 2008-02-01
    • Wen TongJianglei MaMo-Han FongPeiying ZhuAaron Callard
    • Wen TongJianglei MaMo-Han FongPeiying ZhuAaron Callard
    • H04W4/00H04H20/42H04W72/12H04W72/00H04W72/04H04B7/08H04H20/67H04H20/72H04W52/32
    • H04W4/06H04B7/0874H04H20/42H04H20/67H04H20/72H04L12/189H04W52/327H04W72/005H04W72/04H04W72/0453H04W72/121
    • 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.
    • 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。
    • 24. 发明申请
    • Detecting the Number of Transmit Antennas in a Base Station
    • 检测基站中发射天线的数量
    • US20120328040A1
    • 2012-12-27
    • US13608205
    • 2012-09-10
    • Aaron CallardJianglei Ma
    • Aaron CallardJianglei Ma
    • H04B7/06
    • H04W72/005H04B7/0678H04B7/0689H04L5/0092H04W72/0453
    • 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.
    • 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。
    • 26. 发明授权
    • Graduated single frequency network
    • 毕业单频网络
    • US08229441B2
    • 2012-07-24
    • US12197942
    • 2008-08-25
    • Aaron CallardJianglei MaSophie Vrzic
    • Aaron CallardJianglei MaSophie Vrzic
    • H04W40/00
    • H04W72/085H04B7/022H04W72/005
    • The signals from adjacent transmitters reinforce one another. As a result of this over-the-air combining, signal quality is improved in the network and especially at or near cell boundaries. The present invention provides a graduated single frequency network (GSFN) wherein transmitters in cells throughout a geographic area cooperate to broadcast data to user terminals throughout the geographic area, and adjacent transmitters transmit signals that substantially reinforce one another. When transmitting the data, transmitters in certain adjacent cells throughout the geographic area may employ slightly different transmit parameters to provide slightly different transmission signals. The transmission signals used to transmit the data may be varied in a graduated fashion throughout the geographic area, wherein even when there is a difference in the transmission signals of transmitters in adjacent cells, the transmission signals reinforce one another despite being different.
    • 来自相邻发射机的信号相互加强。 作为这种空中组合的结果,网络中的信号质量得到改善,特别是在小区边界处或附近。 本发明提供了一种分级单频网络(GSFN),其中整个地理区域中的小区中的发射机协作以在整个地理区域中向用户终端广播数据,并且相邻的发射机发射基本上相互强化的信号。 当发送数据时,整个地理区域的某些相邻小区中的发射机可以采用稍微不同的发射参数来提供稍微不同的传输信号。 用于发送数据的传输信号可以在整个地理区域以分级方式变化,其中即使当相邻小区中的发射机的传输信号存在差异时,尽管不同,传输信号彼此相互加强。
    • 28. 发明授权
    • Detecting the number of transmit antennas in a base station
    • 检测基站中发射天线的数量
    • US08290088B2
    • 2012-10-16
    • US12221867
    • 2008-08-07
    • Aaron CallardJianglei Ma
    • Aaron CallardJianglei Ma
    • H04L27/00
    • H04W72/005H04B7/0678H04B7/0689H04L5/0092H04W72/0453
    • 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.
    • 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。