中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

393 records (took 0.026 seconds)

    Efficient signaling through access channel
    21.
    发明专利
    Efficient signaling through access channel 有权
    通过访问通道有效的信号

    公开(公告)号：JP2012070399A

    公开(公告)日：2012-04-05

    申请号：JP2011234978

    申请日：2011-10-26

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

    Inventor： SUTIVONG ARAK ,  TEAGUE EDWARD HARRISON ,  ALEXEI GOROKHOV

    IPC: H04W52/32 ,  H04W52/04 ,  H04W72/08 ,  H04W74/08

    CPC classification number: H04W74/004 ,  H04L1/0023 ,  H04L1/0026 ,  H04L1/1692 ,  H04W52/04 ,  H04W72/085 ,  H04W74/0833

    Abstract: PROBLEM TO BE SOLVED: To provide a device and method for transmitting an indicator of channel quality while minimizing the use of a broadcast communication channel.SOLUTION: An access terminal 404 observes transmission from an access point 412 (408); and determines power of transmission that the access terminal receives, and forward link channel quality. The access terminal 404 selects an access sequence randomly from a group corresponding to a determined channel quality value among access sequence groups; and transmits a preamble of the selected access sequence with the channel quality value to the access point 412 (410). On the basis of them, the access point 412 transmits a receipt notification to the access terminal 404 at an adequate power level (416).

    Abstract translation: 要解决的问题：提供用于在最小化广播通信信道的使用的同时发送信道质量的指示符的装置和方法。 解决方案：接入终端404观察从接入点412（408）的发射; 并确定接入终端接收的传输功率，并且转发链路信道质量。 接入终端404从接入序列组中与确定的信道质量值对应的组中随机选择接入序列; 并将具有信道质量值的所选择的接入序列的前导码发送到接入点412（410）。 基于它们，接入点412以足够的功率电平向接入终端404发送接收通知（416）。 版权所有（C）2012，JPO＆INPIT

    Systems and methods for control channel signaling
    22.
    发明专利
    Systems and methods for control channel signaling 有权
    控制信道信号的系统和方法

    公开(公告)号：JP2011124994A

    公开(公告)日：2011-06-23

    申请号：JP2010259984

    申请日：2010-11-22

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

    Inventor： SAMPATH HEMANTH ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD ,  TEAGUE EDWARD HARRISON ,  JULIAN DAVID JONATHAN ,  KADOUS TAMER ,  SUTIVONG ARAK

    IPC: H04J99/00

    CPC classification number: H04L1/0028 ,  H04L1/0026 ,  H04L5/0053 ,  H04L25/0204 ,  H04L25/03343 ,  H04L2025/03414 ,  H04L2025/03426 ,  H04L2025/03802

    Abstract: PROBLEM TO BE SOLVED: To provide methods and devices for providing flexible channel information feedback.
    SOLUTION: The device is provided with a memory and a processor, which is configured to select a type of channel information feedback based on a reporting format of a wireless communication device, and the processor is configured to select the type based on instructions corresponding to the reporting format. The type includes an SDMA CQI and an appropriate segment CQI and further includes an MCW, SCW and SISO CQIs. In some cases, this may be according to reporting types assigned by one or more sectors, with different reporting types for each sector. In other cases, a reporting mode is used to determine the reporting types to be utilized.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题：提供用于提供灵活的信道信息反馈的方法和设备。 解决方案：设备设置有存储器和处理器，其被配置为基于无线通信设备的报告格式来选择信道信息反馈的类型，并且处理器被配置为基于指令来选择类型 对应报告格式。 该类型包括SDMA CQI和适当的分段CQI，并且还包括MCW，SCW和SISO CQI。 在某些情况下，这可能是根据由一个或多个部门分配的报告类型，每个部门具有不同的报告类型。 在其他情况下，使用报告模式来确定要使用的报告类型。 版权所有（C）2011，JPO＆INPIT

    INTERFERENCE AND NOISE ESTIMATION IN AN OFDM SYSTEM
    26.
    发明公开
    INTERFERENCE AND NOISE ESTIMATION IN AN OFDM SYSTEM 审中-公开
    间断或噪声估计IN A OFDM系统

    公开(公告)号：EP1623195A4

    公开(公告)日：2011-08-31

    申请号：EP04752264

    申请日：2004-05-14

    Applicant: QUALCOMM INC

    Inventor： SUTIVONG ARAK ,  NAGUIB AYMAN FAWZY ,  AGRAWAL AVNEESH

    IPC: G01H1/00 ,  G01H20060101 ,  H04J11/00 ,  H04L1/20 ,  H04L27/26

    CPC classification number: H04L1/20 ,  H04L27/2647

    Abstract: Noise and interference can be independently measured in a multiple user Orthogonal Frequency Division Multiplexing (OFDM) system. Co-channel interference is measured in a frequency hopping, multiple user, OFDM system by tracking the sub-carriers assigned to all users in a particular service area or cell. The composite noise plus interference can be determined by measuring the amount of received power in a sub-carrier whenever it is not assigned to any user in the cell. A value is stored for each sub-carrier in the system and the value of noise plus interference can be a weighted average of the present value with previously stored values. The noise component can be independently determined in a synchronous system. In the synchronous system, all users in a system may periodically be prohibited from broadcasting over a sub-carrier and the received power in the sub-carrier measured during the period having no broadcasts.

    POWER CONTROL AND SCHEDULING IN AN OFDM SYSTEM
    28.
    发明公开
    POWER CONTROL AND SCHEDULING IN AN OFDM SYSTEM 审中-公开
    功率控制和分布的ienem OFDM系统

    公开(公告)号：EP1623241A4

    公开(公告)日：2012-01-04

    申请号：EP04785551

    申请日：2004-05-14

    Applicant: QUALCOMM INC

    Inventor： NAGUIB AYMAN FAWZY ,  AGRAWAL AVNEESH ,  SUTIVONG ARAK

    IPC: G01R31/08 ,  H04B7/005 ,  H04L20060101 ,  H04L5/00 ,  H04L27/26

    CPC classification number: H04W52/24 ,  H04L5/0007 ,  H04L5/0044 ,  H04L5/0058 ,  H04L5/006

    Abstract: A system and method for power control and scheduling of sub-carriers in an OFDM communication system. The receiver dynamic range can be minimized by a power control loop that attempts to maintain received power over a noise floor in a predetermined range. If the received power relative to a noise floor in allocated sub-carriers exceeds the predetermined range and the total received power is at the minimum, the scheduling system allocates an additional sub-carrier to the communication link. Additionally, if the received power relative to the noise floor is less than the predetermined range minimum, and the total received power is at a maximum, the scheduling system de-allocates a sub-carrier from the communication link. The scheduling system may also adjust an encoding rate to maintain a relatively constant symbol rate in each sub-carrier.

Patent Agency Ranking