METHOD AND APPARATUS FOR IMPROVING ERROR RATES IN MULTI-BAND ULTRA WIDEBAND COMMUNICATION SYSTEMS
    2.
    发明申请
    METHOD AND APPARATUS FOR IMPROVING ERROR RATES IN MULTI-BAND ULTRA WIDEBAND COMMUNICATION SYSTEMS 审中-公开
    用于改善多带超宽带通信系统中的误码率的方法和装置

    公开(公告)号:WO2005074154A2

    公开(公告)日:2005-08-11

    申请号:PCT/US2005000063

    申请日:2005-01-04

    Abstract: Methods, systems, and apparatus for use in a communication system utilizing multiple bands to improve transmission error rates are disclosed. Error rates are improved by mapping (204) a portion of an input bit stream within a data stream to s first and second bands of the multiple bands, transmitting (206) the portion of this bit stream in the first and second bands, receiving (208) bit streams in the first and second bands corresponding to the portion of the bit stream, demapping (210) the first and second bands, and processing (212) the first and second band bit streams to yield the original portion of the input bit stream.

    Abstract translation: 公开了在利用多个频带来提高传输错误率的通信系统中使用的方法,系统和装置。 通过将数据流内的输入比特流的一部分映射(204)到多个频带的第一和第二频带(204),在第一和第二频带中发送(206)该比特流的部分来接收(204) 208)对应于比特流的部分的第一和第二频带中的第二和第二频带,对第一和第二频带进行解映射(210),以及处理(212)第一和第二频带比特流以产生输入比特的原始部分 流。

    ENHANCED TRANSMISSION SYSTEMS FOR USE IN WIRELESS PERSONAL AREA NETWORKS
    4.
    发明申请
    ENHANCED TRANSMISSION SYSTEMS FOR USE IN WIRELESS PERSONAL AREA NETWORKS 审中-公开
    在无线个人网络中使用的增强传输系统

    公开(公告)号:WO2006044980A1

    公开(公告)日:2006-04-27

    申请号:PCT/US2005/037629

    申请日:2005-10-18

    CPC classification number: H04L1/1685

    Abstract: Method and computer program products for enhancing wireless communication in a wireless network are disclosed. In the wireless network, frames of data are transmitted in bursts. Wireless communication is enhanced by transmitting a first frame of source data that is scrambled using a scrambling sequence in a first burst, storing an indicator corresponding to the scrambling sequence for the first frame, identifying the scrambling sequence of the first frame for retransmission of the first frame, retransmitting the first frame (which is scrambled using the identified scrambling sequence) in a subsequent burst, receiving the trasmitted and retransmitted first frames, and processing the received transmitted and retransmitted first frames to recover the source data.

    Abstract translation: 公开了一种用于增强无线网络中的无线通信的方法和计算机程序产品。 在无线网络中,数据帧以突发方式发送。 通过发送使用第一突发中的加扰序列加扰的源数据的第一帧来增强无线通信,存储与第一帧的加扰序列相对应的指示符,识别用于重发第一帧的第一帧的加扰序列 帧,在随后的突发中重传第一帧(使用所识别的加扰序列进行加扰),接收已传送和重发的第一帧,以及处理接收的发送和重传的第一帧以恢复源数据。

    ULTRA WIDEBAND SCRAMBLER FOR REDUCING POWER SPECTRAL DENSITY
    5.
    发明申请
    ULTRA WIDEBAND SCRAMBLER FOR REDUCING POWER SPECTRAL DENSITY 审中-公开
    超宽带加扰器降低功率谱密度

    公开(公告)号:WO2006022802A1

    公开(公告)日:2006-03-02

    申请号:PCT/US2005/000653

    申请日:2005-01-10

    CPC classification number: H04L25/03866 H04B1/7176 H04B1/719

    Abstract: Scrambling methods for scrambling ultra wideband (UWB) data are disclosed. UWB data (420) having payload data and non-payload data is scrambled (422, 424) by shifting a first bit string (412) a first number of bits, shifting a second bit string (410) a second number of bits, combining (414A - 414N) the first and second shifted bit strings, generating (418) scrambler control bits (416) from the combined first and second shifted bit strings, and scrambling (424) at least a portion of the UWB data responsive to the scrambler control bits. According to another aspect, UWB data is scrambled by scrambling payload data using a pseudo-random number generator having a seed set of multiple seeds having low seed correlation, each seed within the seed set having a predefined number of bits, and selective applying random frame reversion (428, 430) to non-payload data and/or to entire frame of data.

    Abstract translation: 公开了用于加扰超宽带(UWB)数据的加扰方法。 通过将第一位串(412)移位第一位数,将第二位串(410)移位第二位数,对具有有效载荷数据和无有效载荷数据的UWB数据(420)进行加扰(422,424) (414A-414N)所述第一和第二移位位串,从所述组合的第一和第二移位位串中产生(418)扰乱器控制位(416),以及响应于所述扰乱器扰乱(424)所述UWB数据的至少一部分 控制位。 根据另一方面,通过使用具有具有低种子相关性的多个种子的种子集的伪随机数生成器来对UWB数据进行加扰,所述种子集中的每个种子具有预定数量的比特,并且选择性地应用随机帧 (428,430)转换为非有效载荷数据和/或整个数据帧。

    METHOD OF BAND MULTIPLEXING TO IMPROVE SYSTEM CAPACITY FOR A MULTI-BAND COMMUNICATION SYSTEM
    7.
    发明申请
    METHOD OF BAND MULTIPLEXING TO IMPROVE SYSTEM CAPACITY FOR A MULTI-BAND COMMUNICATION SYSTEM 审中-公开
    用于多通道通信系统提高系统容量的多路复用方法

    公开(公告)号:WO2007024613A1

    公开(公告)日:2007-03-01

    申请号:PCT/US2006/032101

    申请日:2006-08-17

    CPC classification number: H04W56/00

    Abstract: A control method of synchronizing communications between or among a plurality of devices in a communication system includes detecting beacons from the devices in the communication system and establishing a reservation for at least a portion of the devices in the communication system. Each reservation is a frame interval in which to transmit symbols from one device to other devices in the communications system. Each frame interval and inter-frame interval may be set according to the established reservation. Each frame interval and inter-frame interval may be a plural, integral number of symbol periods in duration. Each device may determine a time-frequency code (TFC) for each of the other devices in the communication system according to the detected beacons from the other devices and may adjust a frequency band for transmission according to the determined TFC to transmit one or more symbols from the respective device using the adjusted frequency band.

    Abstract translation: 在通信系统中的多个设备之间或之间同步通信的控制方法包括从通信系统中的设备检测信标,并为通信系统中的至少一部分设备建立预留。 每个预留是一个帧间隔,其中从一个设备向通信系统中的其他设备发送符号。 可以根据建立的预留来设置每个帧间隔和帧间间隔。 每个帧间隔和帧间间隔可以是持续时间的多个整数个符号周期。 每个设备可以根据来自其他设备的检测到的信标来确定通信系统中的每个其他设备的时间频率码(TFC),并且可以根据所确定的TFC来调整用于传输的频带以发送一个或多个符号 从使用调整后的频带的各个装置。

    TRANSMISSION METHODS AND APPARATUS IN MULTI-BAND OFDM WIDEBAND SYSTEMS
    9.
    发明申请
    TRANSMISSION METHODS AND APPARATUS IN MULTI-BAND OFDM WIDEBAND SYSTEMS 审中-公开
    多频OFDM宽带系统中的传输方法和设备

    公开(公告)号:WO2006060153A1

    公开(公告)日:2006-06-08

    申请号:PCT/US2005/041164

    申请日:2005-11-10

    CPC classification number: H04L1/1685 H04L1/0071 H04L1/1893

    Abstract: Methods and apparatus for use in a multi-band OFDM wideband transmission systems are disclosed. A frame of source data is mapped by a transmitter for transmission using a first mapping. The frame of source data is then mapped by the transmitter for retransmission using a second mapping to increase frequency diversity. A receiver may identify source data that experiences fading and communicate the tone/frequency on which the fading occurred to the transmitter so that the transmitter may map the source data that experienced fading during transmission to another tone/frequency for retransmission.

    Abstract translation: 公开了在多频带OFDM宽带传输系统中使用的方法和装置。 源数据的帧由发射机映射以便使用第一映射进行传输。 源数据的帧然后由发射机映射以进行重传,使用第二映射来增加频率分集。 接收机可以识别经历衰落的源数据,并向发射机发送衰落发生的音调/频率,使得发射机可以将在传输期间经历衰落的源数据映射到另一个音调/频率以进行重传。

    ULTRA WIDEBAND SCRAMBLER FOR REDUCING POWER SPECTRAL DENSITY
    10.
    发明申请
    ULTRA WIDEBAND SCRAMBLER FOR REDUCING POWER SPECTRAL DENSITY 审中-公开
    用于减少功率光谱密度的超宽带滤光片

    公开(公告)号:WO2006022802A8

    公开(公告)日:2006-05-26

    申请号:PCT/US2005000653

    申请日:2005-01-10

    CPC classification number: H04L25/03866 H04B1/7176 H04B1/719

    Abstract: Scrambling methods for scrambling ultra wideband (UWB) data are disclosed. UWB data (420) having payload data and non-payload data is scrambled (422, 424) by shifting a first bit string (412) a first number of bits, shifting a second bit string (410) a second number of bits, combining (414A - 414N) the first and second shifted bit strings, generating (418) scrambler control bits (416) from the combined first and second shifted bit strings, and scrambling (424) at least a portion of the UWB data responsive to the scrambler control bits. According to another aspect, UWB data is scrambled by scrambling payload data using a pseudo-random number generator having a seed set of multiple seeds having low seed correlation, each seed within the seed set having a predefined number of bits, and selective applying random frame reversion (428, 430) to non-payload data and/or to entire frame of data.

    Abstract translation: 公开了用于加扰超宽带(UWB)数据的加扰方法。 通过移位第一比特串(412)第一比特数,移位第二比特串(410)第二比特数,将具有有效载荷数据和非有效载荷数据的UWB数据(420)加密(422,424),组合 (414A-414N)第一和第二移位比特串,从组合的第一和第二移位比特串产生(418)加扰器控制比特(416),以及响应于加扰器对UWB数据的至少一部分进行加扰(424) 控制位。 根据另一方面,通过使用具有低种子相关性的多个种子的种子组的伪随机数发生器对有效载荷数据进行加扰来加扰UWB数据,种子集内的每个种子具有预定数量的比特,并且选择性地应用随机帧 返回(428,430)到非有效载荷数据和/或整个数据帧。

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