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    Rate-compatible low-density parity check codes
    1.
    发明专利
    Rate-compatible low-density parity check codes 有权
    速率兼容的低密度奇偶校验码

    公开(公告)号：JP2010063111A

    公开(公告)日：2010-03-18

    申请号：JP2009219253

    申请日：2009-09-24

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： BJERKE BJORN ,  KETCHUM JOHN W ,  SINDHUSHAYANA NAGABHUSHANA ,  WALTON JAY ROD

    IPC: H03M13/19 ,  H03M13/00 ,  H03M13/11 ,  H04L1/00

    CPC classification number: H04L1/0057 ,  H03M13/11 ,  H03M13/6393

    Abstract: PROBLEM TO BE SOLVED: To provide a method and an apparatus for generating code words with variable length and redundancy from a single low-density parity check (LDPC) code with variable-length input words. SOLUTION: A mother code for encoding data words is generated based on a parity check matrix, and the mother code is adjusted to reflect the size of the data word to be encoded. A generator matrix applies the mother code to the data words to produce a code words for transmission. A reduction criteria is determined and the size of the generator matrix is reduced accordingly. At a receiver, a corresponding parity check matrix is applied to decode the received code word. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 解决的问题：提供一种用于从具有可变长度输入字的单个低密度奇偶校验（LDPC）码生成具有可变长度和冗余的码字的方法和装置。 解决方案：基于奇偶校验矩阵生成用于编码数据字的母码，并且调整母码以反映要编码的数据字的大小。 生成矩阵将母码应用于数据字以产生用于传输的码字。 确定减少标准，并相应地减小发电机矩阵的尺寸。 在接收机处，应用相应的奇偶校验矩阵来解码所接收的码字。 版权所有（C）2010，JPO＆INPIT

    Power allocation for power control bits in cellular network
    2.
    发明专利
    Power allocation for power control bits in cellular network 审中-公开
    功率分配在电力网络中的功率控制

    公开(公告)号：JP2010259092A

    公开(公告)日：2010-11-11

    申请号：JP2010156821

    申请日：2010-07-09

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： ATTAR RASHID ,  SINDHUSHAYANA NAGABHUSHANA ,  BLACK PETER J

    IPC: H04W52/08 ,  H04B7/005 ,  H04J13/04 ,  H04W24/10 ,  H04W52/26

    CPC classification number: H04W52/32 ,  H04W52/325

    Abstract: PROBLEM TO BE SOLVED: To properly modify power allocation for power control bits in a cellular network.
    SOLUTION: A power allocation value for power control information transmitted from a first station to a plurality of stations is determined by receiving data rate control information from the plurality of stations in a communications system. Supplemental information relating to the data rate control information is then generated, and an improved signal strength value is produced in accordance with the supplemental information. The power allocation value for the power control information transmitted from the first station to the plurality of stations is determined in accordance with the improved signal strength value.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：正确修改蜂窝网络中功率控制位的功率分配。 解决方案：通过从通信系统中的多个站接收数据速率控制信息来确定从第一站到多个站发送的功率控制信息的功率分配值。 然后生成与数据速率控制信息相关的补充信息，并且根据补充信息产生改善的信号强度值。 根据改善的信号强度值来确定从第一站到多个站发送的功率控制信息的功率分配值。 版权所有（C）2011，JPO＆INPIT

    Variable packet length for high packet data rate communication
    3.
    发明专利
    Variable packet length for high packet data rate communication 有权
    用于高分组数据速率通信的可变分组长度

    公开(公告)号：JP2010166574A

    公开(公告)日：2010-07-29

    申请号：JP2010023007

    申请日：2010-02-04

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： SINDHUSHAYANA NAGABHUSHANA ,  ATTAR RASHID A ,  REZAIIFAR RAMIN

    IPC: H04L12/56

    CPC classification number: H04L12/5602 ,  H04L63/162

    Abstract: PROBLEM TO BE SOLVED: To combine variable-length packets for HRPD (High Rate Packet Data) communication into one physical layer (PL) packet for efficient packet transmission. SOLUTION: Although a plurality of security layer (SL) packets can be multiplexed to a single physical layer (PL) packet in order to improve the efficiency, the SL packets may have a variable length. The length of the SL packet is selected based on the status of channels corresponding to a plurality of security layers. A shorter packet is used for a user in poor channel situation, or a user requesting a smaller amount of data due to application and requirements for quality of service (QoS) accompanied with the application. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：将用于HRPD（高速率分组数据）通信的可变长度分组组合成一个物理层（PL）分组以进行有效的分组传输。 解决方案：尽管为了提高效率，多个安全层（SL）分组可以复用到单个物理层（PL）分组，但是SL分组可以具有可变长度。 基于与多个安全层对应的信道的状态来选择SL分组的长度。 在较差的信道情况下，用户使用较短的分组，或者由于应用和与应用相关的服务质量（QoS）要求而请求较小数据量的用户。 版权所有（C）2010，JPO＆INPIT

    Variable packet length for high packet data rate communication
    4.
    发明专利
    Variable packet length for high packet data rate communication 有权
    用于高分组数据速率通信的可变分组长度

    公开(公告)号：JP2010166573A

    公开(公告)日：2010-07-29

    申请号：JP2010023006

    申请日：2010-02-04

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： SINDHUSHAYANA NAGABHUSHANA ,  ATTAR RASHID A ,  REZAIIFAR RAMIN

    IPC: H04L12/56

    CPC classification number: H04L12/5602 ,  H04L63/162

    Abstract: PROBLEM TO BE SOLVED: To improve the generation efficiency of a variable-length physical layer packet. SOLUTION: A plurality of security layer (SL) packets are multiplexed to a single physical layer (PL) packet, in order to improve the efficiency. The SL packets may have a variable length. An SL packet in a different format for a different user is combined with a capsule for forming the PL packet. A shorter packet is used for a user in poor channel situation, or a user requesting a smaller amount of data due to application and requirements for quality of service (QoS) accompanied with the application. A preamble structure provides a unicast packet or a multiuser packet. A mechanism is provided for identifying an acknowledgement from a corrected rate set, a single user packet, or a multiplexed packet (delayed acknowledgement). COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题：为了提高可变长度物理层分组的生成效率。 解决方案：为了提高效率，将多个安全层（SL）分组复用到单个物理层（PL）分组。 SL分组可以具有可变长度。 用于不同用户的不同格式的SL分组与用于形成PL分组的胶囊组合。 在较差的信道情况下，用户使用较短的分组，或者由于应用以及伴随应用的服务质量（QoS）要求而请求较小量的数据的用户。 前导码结构提供单播分组或多用户分组。 提供了用于从校正的速率集合，单个用户分组或多路复用分组（延迟确认）中识别确认的机制。 版权所有（C）2010，JPO＆INPIT

    RECEIVING STATION WITH INTERFERENCE SIGNAL SUPPRESSION
    5.
    发明申请
    RECEIVING STATION WITH INTERFERENCE SIGNAL SUPPRESSION 审中-公开
    接收站与干扰信号抑制

    公开(公告)号：WO0077938A2

    公开(公告)日：2000-12-21

    申请号：PCT/US0016266

    申请日：2000-06-13

    Applicant: QUALCOMM INC

    Inventor： BONACCORSO MARIO ,  LING FUNYUN ,  SINDHUSHAYANA NAGABHUSHANA ,  BLACK PETER

    IPC: H04B1/10 ,  H04B1/707 ,  H04B7/08 ,  H04B1/00

    CPC classification number: H04B1/7115 ,  H04B1/712 ,  H04B7/0854

    Abstract: An optimum combiner that reduces the amount of interference imposed upon a first base station (102) by transmissions of other base stations within the same communication system. Two antennas (112, 114) are used to receive transmissions within a receiving station (110). A rake receiver is coupled to each antenna (112, 114). By optimally combining the signals that are received by each independent finger of the rake receiver, interference that is correlated between a finger associated with the first antenna (112) and a finger associated with the second antenna (114) can be minimized with respect to the desired signal. Optimum combining requires determination of optimum combining coefficients. A max-ratio combining algorithm may be substituted for the optimal combining algorithm depending upon interference characteristics.

    Abstract translation: 一种最佳组合器，其通过同一通信系统内的其他基站的传输来减少对第一基站（102）施加的干扰量。 两个天线（112,114）用于接收接收站（110）内的传输。 耙式接收器耦合到每个天线（112,114）。 通过最佳地组合由瑞克接收机的每个独立手指接收的信号，可以将与第一天线（112）相关联的手指与与第二天线（114）相关联的手指之间相关联的干扰相对于 所需信号。 最佳组合需要确定最佳组合系数。 最大比组合算法可以取决于干扰特性的最佳组合算法。

    FREQUENCY-TIMING CONTROL LOOP FOR WIRELESS COMMUNICATION SYSTEMS
    6.
    发明专利
    FREQUENCY-TIMING CONTROL LOOP FOR WIRELESS COMMUNICATION SYSTEMS 未知

    公开(公告)号：CA2475974C

    公开(公告)日：2012-06-26

    申请号：CA2475974

    申请日：2003-02-12

    Applicant: QUALCOMM INC

    Inventor： BLACK PETER J ,  SINDHUSHAYANA NAGABHUSHANA

    IPC: H04W56/00 ,  H04B1/7115 ,  H04L7/02 ,  H04L27/00

    Abstract: A frequency-timing control loop comprising a frequency control loop to acquire and track the frequency of a given signal instance in a received signal and a timing control loop to acquire and track the timing of the same signal instance. The timing control loop processes data samples for the received signal to provide a first control indicative of timing error in the data samples for the signal instance. The frequency control loop includes a frequency discriminator used to derive a second control indicative of frequency error in the data samples for the signal instance, and a loop filter used to filter the first and second controls to provide a third control. This third control is used to adjust the frequency and phase of a periodic signal, which is used (directly or indirectly) to downconvert and digitize the received signal to provide the data samples.

    7.
    发明专利
    未知

    公开(公告)号：AT547850T

    公开(公告)日：2012-03-15

    申请号：AT99951526

    申请日：1999-09-22

    Applicant: QUALCOMM INC

    Inventor： BLACK PETER ,  KARMI GADI ,  SINDHUSHAYANA NAGABHUSHANA

    IPC: H04B1/69 ,  H04L1/00 ,  H04B1/707 ,  H04J13/00 ,  H04J13/10 ,  H04L7/00

    Abstract: A method for transmitting and receiving variable rate data. The data is spread using a long pseudo noise code generated by a linear feedback PN generator (16), the mask of which is selected by mask selector (14) in accordance with the transmission rate of the variable data and the specific user transmitting the data. Thus, by identifying at the receiver which mask will allow the received waveform to be correctly despread, the rate of the data can be determined.

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