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    • 1. 发明申请
    • Selection of training sequences for Multiple-In Multiple-Out transmissions
    • 多输入多输出传输的训练序列的选择
    • US20060182191A1
    • 2006-08-17
    • US11061958
    • 2005-02-17
    • Peter DarwoodVishakan PonnampalamAlan Jones
    • Peter DarwoodVishakan PonnampalamAlan Jones
    • H04L1/02H04L27/04
    • H04B7/0684H04B1/7105H04B7/0413H04B7/0632H04L5/0023H04L5/0044H04L25/0226
    • A cellular communication system comprises a Multiple-In Multiple-Out, MIMO, transmitter (101) and receiver (103). The MIMO transmitter (101) comprises a message generator (303) for generating MIMO messages comprising selected training sequences and transceivers (305, 307, 309) transmitting the messages on a plurality of antennas (311, 313, 315). The training sequences are selected by a midamble selector (317) from a set of training sequences in response to an associated antenna on which the message is to be transmitted. The set of training sequences is associated with the cell of the MIMO transmitter and comprises disjoint subsets of training sequences for each of the plurality of antennas. The receiver (103) comprises a transmit antenna detector (419) which determines which antenna of the MIMO transmitter the message is transmitted from in response to the training sequence of the received message.
    • 蜂窝通信系统包括多输入多输出MIMO,发射机(101)和接收机(103)。 MIMO发射机(101)包括消息发生器(303),用于生成包含选择的训练序列的MIMO消息和在多个天线(311,313,315)上发射消息的收发机(305,307,309)。 训练序列由中间码选择器(317)从一组训练序列中选择,响应于要在其上发送消息的关联天线。 所述训练序列集合与所述MIMO发射机的小区相关联,并且包括所述多个天线中的每一个的训练序列的不相交子集。 接收器(103)包括发射天线检测器(419),其响应于接收到的消息的训练序列确定MIMO发射机的哪个天线发送消息。
    • 2. 发明申请
    • Interference mitigation for orthogonal frequency division multiplexing communication
    • 正交频分复用通信的干扰减轻
    • US20070025454A1
    • 2007-02-01
    • US11190287
    • 2005-07-26
    • Alan JonesVishakan Ponnampalam
    • Alan JonesVishakan Ponnampalam
    • H04K1/10
    • H04L27/2647H04J11/0056H04L25/0206H04L27/0008H04L27/261
    • An Orthogonal Frequency Division Multiplex (OFDM) communication system comprises OFDM transmitters (103-109) and an OFDM receiver (101). The system comprises a subcarrier status data controller (200) for transmitting subcarrier status data to the OFDM receiver (101). The subcarrier status data indicates the active subcarriers of the OFDM transmitters (103-109). The OFDM receiver (101) comprises a receiver (201) which receives a signal comprising a desired signal component from a first OFDM transmitter (103) and interference from at least one interfering OFDM transmitter (105). The OFDM receiver (101) further comprises a subcarrier status processor (203) which receives the subcarrier status data and a channel estimator (205) which determines channel estimates for at least an air interface communication channel from the first OFDM transmitter (103) and an air interface communication channel from the interfering OFDM transmitter (105). An interference mitigation processor (207) performs interference mitigation of the interference in response to the subcarrier status data and the channel estimates thereby providing improved recovery of the data from the first OFDM transmitter (103).
    • 正交频分复用(OFDM)通信系统包括OFDM发射机(103-109)和OFDM接收机(101)。 该系统包括用于向OFDM接收机(101)发送子载波状态数据的副载波状态数据控制器(200)。 子载波状态数据指示OFDM发射机的有效子载波(103-109)。 OFDM接收器(101)包括接收器(201),其接收包括来自第一OFDM发射机(103)的期望信号分量的信号和来自至少一个干扰OFDM发射机(105)的干扰。 OFDM接收机(101)还包括接收子载波状态数据的子载波状态处理器(203)和确定来自第一OFDM发射机(103)的至少一个空中接口通信信道的信道估计的信道估计器(205) 来自干扰OFDM发射机(105)的空中接口通信信道。 干扰减轻处理器(207)响应于子载波状态数据和信道估计来执行干扰的干扰减轻,从而提供来自第一OFDM发射机(103)的数据的改进的恢复。
    • 6. 发明申请
    • Method and arrangement for channel estimation in a wireless communication system
    • 无线通信系统中信道估计的方法和装置
    • US20060223441A1
    • 2006-10-05
    • US10531151
    • 2003-10-24
    • Peter DarwoodAlan Jones
    • Peter DarwoodAlan Jones
    • H04B17/00
    • H04L7/042H04L25/0226
    • A method and arrangement (100) for PRACH burst channel detection in a UTRA TDD wireless communication system in which training sequences are constructed from a single periodic base code. Unwanted cross-correlation peaks, having magnitude less than correlation peaks, are removed (440) from the correlator outputs, maintaining optimal signal-to-noise ratio of the channel estimates, providing a low probability of false detection, and extending the cell size of a CDMA network to that determined by the guard period duration. The cell size can be extended further by ensuring that no transmissions are scheduled for the timeslot subsequent to that in which the channel estimation bursts are scheduled.
    • 一种在UTRA TDD无线通信系统中用于PRACH突发信道检测的方法和装置(100),其中训练序列由单个周期性基本码构成。 具有小于相关峰值的量值的不需要的互相关峰值从相关器输出中去除(440),保持信道估计的最佳信噪比,提供较低的错误检测概率,并且扩展单元大小 CDMA网络由保护周期持续时间确定。 可以通过确保在调度信道估计突发的时隙之后的时隙中没有调度传输来进一步扩展小区大小。
    • 8. 发明授权
    • Mobile communications system, infrastructure equipment, base station and method
    • 移动通信系统,基础设施,基站和方法
    • US09549340B2
    • 2017-01-17
    • US14122591
    • 2012-05-11
    • Martin Warwick BealeAlan Jones
    • Martin Warwick BealeAlan Jones
    • H04W28/02H04W76/02H04W72/04H04W72/06
    • H04W28/0289H04W72/04H04W72/06H04W76/15
    • A mobile communications system including one or more mobile communications devices and a mobile communications network, the mobile communications network including a radio network part and a core network part and being configured to communicate data packets to and/or from mobile communications devices. Data packets can be communicated to or received from the mobile communications devices using either a broadband packet network or a dedicated messaging network. The dedicated messaging network is arranged to communicate short data grams more efficiently than larger data communications. Therefore by selecting either the dedicated messaging network or the broadband network as a function of content of the data packet a more efficient use of available communications resources and hardware resources is realized.
    • 一种包括一个或多个移动通信设备和移动通信网络的移动通信系统,所述移动通信网络包括无线电网络部分和核心网络部分,并被配置为向移动通信设备和/或从移动通信设备传送数据分组。 可以使用宽带分组网络或专用消息传递网络将数据分组传送到移动通信设备或从移动通信设备接收数据分组。 专用消息传递网络被设置为比较大数据通信更有效地传送短数据克。 因此,通过选择专用消息网络或宽带网络作为数据分组的内容的功能,实现了可用的通信资源和硬件资源的更有效的使用。
    • 10. 发明申请
    • Bicone pattern shaping device
    • Bicone图案整形装置
    • US20070205961A1
    • 2007-09-06
    • US11706580
    • 2007-02-12
    • Donald BlackTerence NewburyAlan JonesR. ParrBayne Bunce
    • Donald BlackTerence NewburyAlan JonesR. ParrBayne Bunce
    • H01Q15/08
    • H01Q9/28H01Q19/062
    • A broadband omni-directional bicone antenna. The antenna can comprise conductive surfaces of conical voids provided within a solid dielectric structure. The outside surface of the solid structure can support a radio frequency (RF) lens geometry operable for beam forming. The beam forming can modify the elevation pattern of the electromagnetic radiation from the bicone antenna. The solid dielectric structure may be machined or molded from a single piece of material. The conical voids provided within the solid structure can be metallized to provide conductive bicone radiators. The outer surface beam shaping lenses can be zoned or continuous and can provide elevation patterns with increased gain, cosecant squared falloff, or various other patterns. The beam shaping lens may be formed from any low-loss dielectric. Alternatively, the lens may be formed from a less dense material such as dielectric foam that can support radial conductive beam forming vanes.
    • 宽带全向双向天线。 天线可以包括设置在固体电介质结构内的锥形空隙的导电表面。 固体结构的外表面可以支持用于波束形成的射频(RF)透镜几何形状。 波束形成可以修改来自二极管天线的电磁辐射的仰角图。 固体电介质结构可以由单片材料加工或模制。 提供在固体结构内的锥形空隙可以被金属化以提供导电的二元散热器。 外表面光束整形透镜可以划分或连续,并且可以提供具有增加的增益,舒适平方衰减或各种其它图案的高程图案。 光束整形透镜可以由任何低损耗电介质形成。 或者,透镜可以由较不致密的材料形成,例如可以支撑径向导电波束形成叶片的电介质泡沫。