公开(公告)号：EP1673952A4

公开(公告)日：2012-12-05

申请号：EP04795313

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  RANGAN SUNDEEP ,  SRINIVASAN MURARI ,  LANE FRANK A ,  HANDE PRASHANTH

IPC: H04B7/06 ,  H01Q3/24 ,  H01Q3/26 ,  H04B7/005 ,  H04B7/08 ,  H04L1/00 ,  H04L5/00 ,  H04W52/42

CPC classification number: H04B7/0604 ,  H01Q3/24 ,  H01Q3/2605 ,  H04B7/061 ,  H04B7/0691 ,  H04B7/0805 ,  H04L1/0026 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0026 ,  H04L5/006 ,  H04W52/42

Abstract: Transmit and/or receive diversity is achieved using multiple antennas. In some embodiments, a single transmitter chain within a wireless terminal is coupled over time to a plurality of transmit antennas. At any given time, a controllable switching module couples the single transmitter chain to one the plurality of transmit antennas. Over time, the switching module couples the output signals from the single transmitter chain to different transmit antennas. Switching decisions are based upon predetermined information, dwell information, and/or channel condition feedback information. Switching is performed on some dwell and/or channel estimation boundaries. In some OFDM embodiments, each of multiple transmitter chains is coupled respectively to a different transmit antenna. Information to be transmitted is mapped to a plurality of tones. Different subsets of tones are formed for and transmitted through different transmit chain/antenna sets simultaneously. The balance of tones allocated to the subsets for each antenna are changed as a function of predetermined information, dwell information, and/or channel condition feedback information.

公开(公告)号：EP1810409A4

公开(公告)日：2012-07-04

申请号：EP05813873

申请日：2005-10-14

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  RANGAN SUNDEEP ,  SRINIVASAN MURARI ,  HANDE PRASHANTH

IPC: H04B1/00 ,  H04B17/00

CPC classification number: H04B1/7103 ,  H04B1/7097 ,  H04B7/022 ,  H04B17/24 ,  H04B17/318 ,  H04B17/345 ,  H04B2201/70701 ,  H04B2201/70702 ,  H04L5/023

Abstract: Methods and apparatus for collecting, measuring, reporting and/or using information which can be used for interference control purposes. Wireless terminals measure signals transmitted from one or more base stations, e.g., base station sector transmitters. The measured signals may be, e.g., beacon signals and/or pilot signals. From the measured signals, the wireless terminal generates one or more gain ratios which provide information about the relative gain of the communications channels from different base station sectors to the wireless terminal. This information represents interference information since it provides information about the signal interference that will be caused by transmissions from other base station sectors relative to transmissions made by the base station sector to which the wireless terminal is attached. Based on the signal energy measurements and relative gains generated from the energy measures, reports are generated in accordance with the invention and sent to one or more base stations.

公开(公告)号：EP1654820A4

公开(公告)日：2011-01-19

申请号：EP03818352

申请日：2003-08-13

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  FAN JOHN ,  RANGAN SUNDEEP ,  HANDE PRASHANTH

IPC: H04J11/00 ,  H04B7/00 ,  H04B7/005 ,  H04L27/26 ,  H04L27/36 ,  H04W52/56

CPC classification number: H04W52/08 ,  H04L27/2608 ,  H04L27/362 ,  H04W52/56 ,  H04W52/60

Abstract: The present invention involves apparatus and methods to perform wireless terminal transmission power control. The invention uses novel and highly efficient methods to: convey power control information, specify power control level adjustments, recognize power control information, limit interference in the power control signaling, and recognize corrupted power control signaling, thus conserving wireless terminal energy and minimizing power control signaling and associated bandwidth. Base stations send analog power control command signals, with a continuous range of control levels, to wireless terminals for transmission power adjustments. Power control signals include two components which can be used to convey information, e.g., power control commands, signal quality, device identity information. For zero power adjustment, the control component signal is not transmitted. For a non-zero adjustment, power control signals are sent using control ranges and limits, known to the base station and wireless terminal, with the scaling adjusted or synchronized based upon feedback information.

公开(公告)号：WO2012061587A2

公开(公告)日：2012-05-10

申请号：PCT/US2011059127

申请日：2011-11-03

Applicant: QUALCOMM INC ,  SANTHANAM ARVIND V ,  PALADUGU KARTHIKA ,  HANDE PRASHANTH

Inventor： SANTHANAM ARVIND V ,  PALADUGU KARTHIKA ,  HANDE PRASHANTH

IPC: H04W84/04

CPC classification number: H04W84/045 ,  H04W36/14

Abstract: In an embodiment, a user of a wireless communications device (WCD) is notified when operating in a serving area of a FEMTO access point (AP). In another embodiment, the WCD can notify an application server (AS) that the WCD is served by the FEMTO AP. In another embodiment, the AS can set a service level for a server-arbitrated communication session (CS) based on the FEMTO AP serving status of participating WCDs. In another embodiment, the FEMTO AP can determine to use a downlink control or signaling channel to transmit data to the WCD. In another embodiment, based on its serving FEMTO AP status, the WCD can (i) modify its participation level in the CS and/or (ii) selectively track usage. In another embodiment, the WCD or FEMTO AP can measure performance parameters of the CS to determine whether to trigger a handoff of the WCD to a different AP.

Abstract translation: 在一个实施例中，当在毫微微接入点（AP）的服务区中操作时，通知无线通信设备（WCD）的用户。 在另一个实施例中，WCD可以通知应用服务器（AS）WCDMA由毫微微AP提供服务。 在另一个实施例中，AS可以基于参与的WCD的服务状态的毫微微AP来设置服务器仲裁的通信会话（CS）的服务等级。 在另一个实施例中，毫微微AP可以确定使用下行链路控制或信令信道来向WCD发送数据。 在另一个实施例中，基于其服务的毫微微AP状态，WCD可以（i）修改其在CS中的参与级别和/或（ii）选择性地跟踪使用情况。 在另一个实施例中，WCD或毫微微AP可以测量CS的性能参数以确定是否触发WCD到不同AP的切换。

公开(公告)号：WO2008076940A3

公开(公告)日：2008-12-18

申请号：PCT/US2007087665

申请日：2007-12-14

Applicant: QUALCOMM INC ,  DAS ARNAB ,  HANDE PRASHANTH ,  RANGAN SUNDEEP ,  WU XINZHOU

Inventor： DAS ARNAB ,  HANDE PRASHANTH ,  RANGAN SUNDEEP ,  WU XINZHOU

IPC: H04L5/02 ,  H04B7/005 ,  H04L1/00 ,  H04W52/26 ,  H04W72/04 ,  H04W72/08 ,  H04W72/12

CPC classification number: H04L1/0002 ,  H04L1/0017 ,  H04L5/023 ,  H04L27/2601 ,  H04W52/26 ,  H04W72/1205 ,  H04W72/1268

Abstract: Systems and methodologies are described that facilitate scheduling transmission upon an uplink traffic channel in Orthogonal Frequency Division Multiplexing (OFDM) environments. Uplink scheduling may include user selection and rate selection. Further, user selection may be based on a token mechanism that provides control over fairness of allocation to disparate users. Moreover, rate selection may be based upon considerations of uplink interference mitigation.

Abstract translation: 描述了便于在正交频分复用（OFDM）环境中调度上行链路业务信道上的传输的系统和方法。 上行链路调度可以包括用户选择和速率选择。 此外，用户选择可以基于提供对分配给不同用户的公平性的控制的令牌机制。 而且，速率选择可以基于对上行链路干扰减轻的考虑。

公开(公告)号：WO2007121295A2

公开(公告)日：2007-10-25

申请号：PCT/US2007066506

申请日：2007-04-12

Applicant: QUALCOMM INC ,  LAROIA RAJIV ,  NADHAMUNI PRASANNA ,  DYNARSKI RICHARD J ,  TSIRTSIS GEORGE ,  PARK VINCENT ,  CORSON MATHEW SCOTT ,  ANIGSTEIN PABLO ALEJANDRO ,  HANDE PRASHANTH

Inventor： LAROIA RAJIV ,  NADHAMUNI PRASANNA ,  DYNARSKI RICHARD J ,  TSIRTSIS GEORGE ,  PARK VINCENT ,  CORSON MATHEW SCOTT ,  ANIGSTEIN PABLO ALEJANDRO ,  HANDE PRASHANTH

IPC: H04L29/06 ,  H04W8/26 ,  H04W80/04

CPC classification number: H04L61/2015 ,  H04W8/26 ,  H04W80/04

Abstract: The claimed subject matter relates to configuring a host device through utilization of MMP, which is a protocol that is based upon MIP but not associated with several deficiencies associated therewith. In particular, a wireless terminal can be configured to run MMP and send messages that conform to MMP over a wireless link. A base station can be configured to act as a DHCP server. The base station can provide configuration information to host device by way of DHCP.

Abstract translation: 所要求保护的主题涉及通过利用MMP来配置主机设备，该MMP是基于MIP但与与其相关联的若干缺陷没有关联的协议。 特别是，无线终端可以配置为运行MMP并通过无线链路发送符合MMP的消息。 基站可以配置为充当DHCP服务器。 基站可以通过DHCP向主机设备提供配置信息。