会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明申请
    • METHODS AND APPARATUS RELATED TO ASSIGNMENT IN A WIRELESS COMMUNICATIONS SYSTEM
    • 与无线通信系统中的分配有关的方法和设备
    • WO2008009014A3
    • 2008-04-10
    • PCT/US2007073554
    • 2007-07-14
    • QUALCOMM INCJIN HUIRICHARDSON TOMLAROIA RAJIVLI JUNYI
    • JIN HUIRICHARDSON TOMLAROIA RAJIVLI JUNYI
    • H04W72/04
    • H04W72/042H04W8/26
    • Methods and apparatus related to assignments in a wireless communications system are described. A mobile is assigned an identifier and a mask value, e.g., as part of a state transition message. The mobile uses the assigned identifier and/or the assigned mask value in determining whether assignments included in assignment messages, e.g., traffic channel assignment messages, are directed to the wireless terminal. Predetermined associations between assignment slots, assigned segments, and/or mask values are utilized to limit control signaling overhead. Different groups of segments are available for assignment to different wireless terminals as a function of mask values. Different types of assignment messages use different amounts of information bits to convey the assignment. Some types of assignments use a wireless terminal identifier, while other types of assignments use a wireless terminal identifier and a mask identifier. The mask identifier, e.g., a single bit, allows for selection between a subset of the potential masks used in the system.
    • 描述了与无线通信系统中的分配有关的方法和设备。 移动台被分配一个标识符和一个掩码值,例如作为状态转换消息的一部分。 移动台使用分配的标识符和/或分配的掩码值来确定包括在分配消息(例如业务信道分配消息)中的分配是否指向无线终端。 利用分配时隙,分配的分段和/或掩码值之间的预定关联来限制控制信令开销。 作为掩码值的函数,可以将不同的无线分组分组分配给不同的无线终端。 不同类型的分配消息使用不同数量的信息位来传达分配。 某些类型的分配使用无线终端标识符,而其他类型的分配使用无线终端标识符和掩码标识符。 掩码标识符(例如单个位)允许在系统中使用的潜在掩码的子集之间进行选择。
    • 2. 发明申请
    • METHODS AND APPARATUS FOR IMPLEMENTING AND USING AN IN-BAND RATE INDICATOR
    • 实现和使用带内速率指示器的方法和装置
    • WO2007015830A3
    • 2007-04-19
    • PCT/US2006027761
    • 2006-07-19
    • QUALCOMM FLARION TECHLAROIA RAJIVJIN HUILI JUNYILANE FRANK ARICHARDSON TOM
    • LAROIA RAJIVJIN HUILI JUNYILANE FRANK ARICHARDSON TOM
    • H04B7/26
    • H04L1/0057H04L1/0004H04L1/0005H04L1/0009H04L1/0025H04L1/0029H04L27/0008H04L27/2608Y02D50/10
    • Downlink traffic channel data rate options and methods of indicating to a wireless terminal a utilized downlink data rate option are described. The downlink traffic channel rate option for a segment is conveyed using an assignment signal and/or a block in the downlink traffic channel segment which is not used for user data. Downlink segment assignment signals in some implementations allocate fewer bits for rate option indication than are required to uniquely identify each option, hi some implementations low rate options, e.g., using QPSK, are uniquely identified via assignment signals. Higher rate options, e.g., using QAMl 6 modulation, are conveyed via the distinct information block in the downlink traffic segment using a first coding/modulation method. Still higher rate options, e.g., using QAMl 6, QAM64, or QAM256, are conveyed via the information block in the segment using a second coding/modulation method which is applied to the rate option information.
    • 下行业务信道数据速率选项和向无线终端指示利用的下行链路数据速率选项的方法进行描述。 使用未用于用户数据的下行链路业务信道段中的分配信号和/或块来传送段的下行业务信道速率选项。 在一些实施方式中,下行链路段分配信号比用于唯一地标识每个选项所需要的速率选项指示分配更少的比特。在一些实现中,例如使用QPSK的低速率选项通过分配信号被唯一地识别。 使用第一编码/调制方法,通过下行链路业务段中的不同信息块传送更高速率选项,例如使用QAM6调制。 使用应用于速率选项信息的第二编码/调制方法,通过片段中的信息块传送诸如使用QAM6,QAM64或QAM256的更高速率选项。
    • 4. 发明申请
    • OVERHEAD SIGNALING IN A WIRELESS COMMUNICATION SYSTEM
    • 无线通信系统中的超声信号
    • WO2007121333A2
    • 2007-10-25
    • PCT/US2007066583
    • 2007-04-13
    • QUALCOMM INCLEONIDOV ALEXANDERJIN HUILAROIA RAJIVLI JUNYISRINIVASAN MURARI
    • LEONIDOV ALEXANDERJIN HUILAROIA RAJIVLI JUNYISRINIVASAN MURARI
    • H04L27/26
    • H04L27/2608
    • Improved ways of communicating assignment signals using flash signaling are described, e.g., for wireless terminals with low SNR, that are more robust against large variation of channel gains due to e.g., frequency selective fading and fast fading in time. Coding and modulation methods and apparatus that have excellent properties against symbol erasures are described. The use of flash signaling provides an improved assignment channel having strong performance on the fading channel without compromising the performance on the AWGN channel. In one exemplary embodiment, the coding and modulation method can tolerate up to 5 erased symbols out of 8 transmitted symbols. One embodiment reduces or minimizes the sector interference on the flash assignment by improving or maximizing orthogonality between different sectors. In addition, one embodiment describes improved ways of swapping flash assignment tone-symbols in the presence other high priority signals, like sector pilots and sector null pilots.
    • 例如,对于具有低SNR的无线终端,使用闪信号进行传送分配信号的改进方式对于由于例如频率选择性衰落和时间上的快速衰落而导致的信道增益的大变化更加鲁棒。 描述了具有针对符号擦除的优异特性的编码和调制方法和装置。 闪光信令的使用提供了在衰落信道上具有强性能的改进的分配信道,而不损害AWGN信道上的性能。 在一个示例性实施例中,编码和调制方法可以容忍8个发送的符号中多达5个擦除的符号。 一个实施例通过改善或最大化不同扇区之间的正交性来减少或最小化闪存分配上的扇区干扰。 此外,一个实施例描述了在存在其他高优先级信号(如扇区导频和扇区空导频)的情况下交换闪存分配音调符号的改进方式。
    • 6. 发明申请
    • METHOD AND APPARATUS IN A BASE STATION FOR TRANSMITTING DATA ON THE DC TONE OF A MULTI-CARRIER COMMUNICATION SYSTEM WITH A PREDETERMINED TIMING PATTERN
    • 用于在具有预定时序图案的多载波通信系统的直流音调发送数据的基站中的方法和装置
    • WO2007008614A3
    • 2007-04-05
    • PCT/US2006026403
    • 2006-07-08
    • QUALCOMM FLARION TECHLAROIA RAJIVLI JUNYIJIN HUI
    • LAROIA RAJIVLI JUNYIJIN HUI
    • H04L27/26H04L25/06
    • H04L5/0058H04L5/0007H04L5/0046H04L27/2626
    • Special DC tone treatment in a wireless communications system, e.g., an OFDM system, is discussed. In the downlink, a wireless terminal receiver introduces self-interference at the DC tone from the RP/ baseband conversion. A base station thus does not transmit on the downlink DC tone according to a predetermined pattern while continuing to transmit on other downlink tones.. Wireless terminals measure received signal on the downlink DC tone during the time of suspended DC tone transmission, estimate self-interference and apply a correction to other received downlink DC tones. In the uplink DC tone interference is a composite of the assigned wireless terminal transmitter's baseband/RF conversion self-interference and air link noise. During one symbol interval of an N symbol interval dwell, the uplink DC tone is reserved for a special modulation symbol, which is a predetermined function of the other M-I modulation symbols. At the base station, its receiver receives a set of modulation symbols conveyed by the uplink DC tone for a dwell, calculates the average DC component and corrects the received N-I modulation symbols.
    • 讨论了无线通信系统(例如,OFDM系统)中的特殊DC音调处理。 在下行链路中,无线终端接收机在RP /基带转换的DC音调下引入自干扰。 因此,基站不会根据预定模式在下行链路DC频调上进行发送,同时在其他下行链路音调上继续发送。无线终端在暂停的直流音调发送时测量下行链路直流音上的接收信号,估计自身干扰 并对其他接收的下行链路DC音调进行校正。 在上行链路中,直流音干扰是指定的无线终端发射机的基带/ RF转换自干扰和空中链路噪声的组合。 在N个符号间隔驻留的一个符号间隔期间,上行链路DC音调被保留用于作为其他M-1调制符号的预定函数的特殊调制符号。 在基站,其接收机接收由上行链路DC频调传送的一组调制符号以进行驻留,计算平均DC分量并校正接收到的N-I调制符号。
    • 8. 发明申请
    • LDPC ENCODING METHODS AND APPARATUS
    • LDPC编码方法和装置
    • WO2006014742A3
    • 2009-06-18
    • PCT/US2005025752
    • 2005-07-20
    • FLARION TECHNOLOGIES INCRICHARDSON TOMJIN HUI
    • RICHARDSON TOMJIN HUI
    • H03M13/00
    • H03M13/6508H03M13/116H03M13/118H03M13/611
    • A flexible and relatively hardware efficient LDPC encoder is described (300). The encoder cm be implemented with a level of parallelism which is less than the full parallelism of the code structure used to control the encoding process (301). Each command of a relatively simple microcode used to describe the code structure can be stored and executed multiple times to complete the encoding of a codeword (354). Different codeword lengths can be supported using the same set of microcode instructions but with the code being implemented a different number of times depending on the lifting factor selected to be used (310). The LDPC encoder can switch between encoding codewords of different lengths, without the need to change the stored code description information, by simply changing a code lifting factor used to control the encoding processes (310). When coding codewords shorter than the maximum supported codeword length some block storage locations and/or registers may go unused (308).
    • 描述了一种灵活且相对较为硬件的LDPC编码器(300)。 编码器cm以与用于控制编码处理(301)的代码结构的完全并行性小于并行级别来实现。 用于描述代码结构的相对简单的微代码的每个命令可以被多次存储和执行以完成代码字的编码(354)。 可以使用相同的一组微代码指令来支持不同的码字长度,但是根据所选择的使用的提升因子,代码被实施不同的次数(310)。 LDPC编码器可以通过简单地改变用于控制编码处理的代码提升因子(310)而不需要改变存储的代码描述信息来切换不同长度的编码码字。 当编码比最大支持的码字长度短的码字时,一些块存储位置和/或寄存器可能不被使用(308)。
    • 10. 发明申请
    • SOFT INFORMATION SCALING FOR ITERATIVE DECODING
    • 用于迭代解码的软信息分级
    • WO2004079563A8
    • 2005-03-17
    • PCT/US0324730
    • 2003-08-07
    • FLARION TECHNOLOGIES INCRICHARDSON TOMNOVICHKOV VLADIMIRJIN HUI
    • RICHARDSON TOMNOVICHKOV VLADIMIRJIN HUI
    • H03M13/00H04L1/00G06F7/60G06F7/02G06F11/00G06F17/10
    • H04L1/005H03M13/00H03M13/1102H03M13/296H03M13/3707H03M13/6325H03M13/658
    • Methods and apparatus for scaling soft values (214) as part of an error correction decoding process are described. Accurate decoding depends on use of the appropriate scale factor. Selection and use of the scale factor to scale soft values is designed to improve and/or optimize decoder performance without the need for prior knowledge of the correct scale factor or the actual channel conditions at the time the signal from which the soft values were obtained was transmitted through a communications channel. The techniques of the present invention assumes that the soft values to be processed were transmitted through a communications channel having a quality that can be accurately described by a channel quality value (200). A scale factor is determined from the distribution of soft value (208) to be scaled (212) and an assumption that the channel through which they were transmitted was of the quality corresponding to a pre-selected channel quality value (210).
    • 描述作为纠错解码处理的一部分来缩放软值(214)的方法和装置。 准确的解码取决于使用适当的比例因子。 设计用于缩放软值的比例因子的设计是为了提高和/或优化解码器性能,而不需要在获得软值的信号时获得正确比例因子或实际信道条件的先验知识 通过通信信道传输。 本发明的技术假设要通过具有可以通过信道质量值(200)精确描述的质量的通信信道来发送要处理的软值。 根据要缩放的软值(208)的分布(212)确定比例因子,以及假设其被发送的信道具有与预先选择的信道质量值对应的质量(210)。