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    Multidimensional algorithm for roaming
    36.
    发明授权
    Multidimensional algorithm for roaming 有权
    用于漫游的多维算法

    公开(公告)号：US09326230B2

    公开(公告)日：2016-04-26

    申请号：US14048464

    申请日：2013-10-08

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Shu Du ,  Sumeet Kumar ,  Sohani Ganesh Rao ,  Paul Husted

    IPC: H04W4/00 ,  H04W48/20 ,  H04W84/12

    CPC classification number: H04W48/20 ,  H04L5/0055 ,  H04W36/14 ,  H04W40/244 ,  H04W84/12 ,  H04W88/08

    Abstract: Methods, devices, and apparatuses are described for wireless communications using a multidimensional algorithm for roaming. In one aspect, an initial set of candidate access points (APs) is produced by a station using a roaming scan. The initial set may be identified based at least in part on an initial metric (e.g., beacon signal strength). A probe signal may be transmitted by the station to at least one of the candidate APs in the initial set and information may be received in response to the probe signals. The station may then identify a reduced set from the initial set based at least in part on the received information, where the reduced set is used to select a target AP. At least one additional metric may be identified and the probe signal may be configured to obtain information corresponding to the additional metrics. This information may be used by the station to select the candidate APs in the reduced set.

    Abstract translation: 描述了使用用于漫游的多维算法的无线通信的方法，设备和装置。 在一个方面，候选接入点（AP）的初始集合由使用漫游扫描的站产生。 可以至少部分地基于初始度量（例如，信标信号强度）来识别初始设置。 探测信号可以由站发送到初始设置中的候选AP中的至少一个，并且响应于探测信号可以接收信息。 然后，站可以至少部分地基于接收到的信息来识别来自初始集合的缩减集合，其中使用缩减集合来选择目标AP。 可以识别至少一个附加度量，并且可以将探测信号配置为获得对应于附加度量的信息。 该信息可以由站使用以选择缩减集中的候选AP。

    ADAPTIVE CONTROL OF RF LOW POWER MODES IN A MULTI-RATE WIRELESS SYSTEM USING MCS VALUE
    38.
    发明申请
    ADAPTIVE CONTROL OF RF LOW POWER MODES IN A MULTI-RATE WIRELESS SYSTEM USING MCS VALUE 有权
    使用MCS值的多速无线系统中RF低功耗模式的自适应控制

    公开(公告)号：US20150346807A1

    公开(公告)日：2015-12-03

    申请号：US14287663

    申请日：2014-05-27

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Paul Husted ,  MeeLan Lee ,  Srenik Mehta ,  Kai Shi ,  Shahram Abdollahi-Alibeik ,  Zhanfeng Jia ,  Soraya Kasnavi ,  Ning Zhang ,  David Kuochieh Su ,  Subramania Sharma Thandaveswaran ,  Kenneth Gainey ,  Ian David O'Donnell

    IPC: G06F1/32

    CPC classification number: G06F1/3293 ,  G06F1/3278 ,  G06F1/3287 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/24

    Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, using a modulation and coding scheme (MCS) value as a factor for guidance. According to one aspect, the device may be in a reception mode. While in a first power mode, the device may receive control information for incoming data that is being transmitted via a transmission frame. The control information may be located in a first portion of the frame with the data following in a second portion of the frame. The control information may include or otherwise indicate an MCS value corresponding to the MCS applied to the incoming data. Based on the MCS value, the device may be adaptively switched to a second power mode for receiving the incoming data.

    Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备。 在实施例中，可以通过使用调制和编码方案（MCS）值作为引导因素来自适应地控制无线通信设备的功率模式来实现功率节省。 根据一个方面，设备可以处于接收模式。 在第一功率模式下，设备可以接收正在通过传输帧发送的输入数据的控制信息。 控制信息可以位于帧的第一部分中，数据跟随在帧的第二部分中。 控制信息可以包括或以其他方式指示对应于应用于输入数据的MCS的MCS值。 基于MCS值，设备可以自适应地切换到用于接收传入数据的第二功率模式。

    METHOD OF ENABLING SINGLE CHAIN RANGING OPERATIONS
    39.
    发明申请
    METHOD OF ENABLING SINGLE CHAIN RANGING OPERATIONS 有权
    实现单链范围操作的方法

    公开(公告)号：US20150049679A1

    公开(公告)日：2015-02-19

    申请号：US13970382

    申请日：2013-08-19

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Carlos Horacio Aldana ,  Xiaoxin Zhang ,  James Simon Cho

    IPC: H04W72/04

    CPC classification number: H04W64/00

    Abstract: A system and method are disclosed for performing ranging operations between two wireless devices without employing cyclic shift diversity (CSD) compensation techniques. For some embodiments, a first wireless device sends a negotiation request frame requesting the second wireless device to respond to subsequently received frames of a specified type using a selected one of the transmit chains in the second wireless device. Thereafter, the first wireless device sends a data frame to the second wireless device to initiate a ranging operation. The second wireless device sends a response frame of the specified type to the first wireless device using the selected one of the transmit chains.

    Abstract translation: 公开了一种在两个无线设备之间执行测距操作而不采用循环移位分集（CSD）补偿技术的系统和方法。 对于一些实施例，第一无线设备发送协商请求帧，请求第二无线设备使用第二无线设备中的所选发送链中的所选择的一个响应所接收的指定类型的帧。 此后，第一无线设备向第二无线设备发送数据帧以发起测距操作。 第二无线设备使用所选择的发送链之一向第一无线设备发送指定类型的响应帧。

    DYNAMIC VOLTAGE AND FREQUENCY SCALING IN WIRELESS MODEMS
    40.
    发明申请
    DYNAMIC VOLTAGE AND FREQUENCY SCALING IN WIRELESS MODEMS 有权
    无线电模式下的动态电压和频率调整

    公开(公告)号：US20140301259A1

    公开(公告)日：2014-10-09

    申请号：US13954035

    申请日：2013-07-30

    Applicant: QUALCOMM Incorporated

    Inventor： Sandip Homchaudhuri ,  Joseph Duncan ,  Xiaoru Zhang ,  MeeLan Lee ,  Arunkumar Jayaraman ,  Derrick Chu Lin ,  Srenik Mehta

    IPC: H04W52/02

    CPC classification number: H04W52/0229 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3296 ,  H04W52/0216 ,  H04W52/029 ,  Y02D10/126 ,  Y02D10/172 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24

    Abstract: Methods and apparatuses are described in which dynamic voltage and frequency scaling may be used to save power when processing packets in a wireless communications device. In some cases, inframe detection may allow the device to determine whether to transition from a first (e.g., lower) voltage level to a second (e.g., higher) voltage level to process one or more packets of a received frame. For some packet types the first voltage level may be maintained. In other cases, the device may determine a bandwidth to use from among multiple bandwidths supported by the device. The bandwidth may be determined based on channel conditions. A voltage level may be identified that corresponds to the determined bandwidth and a processing voltage may be scaled to the identified voltage level. The device may be configured to operate in wireless local area network (WLAN) and/or in a cellular network (e.g., LTE).

    Abstract translation: 描述了在无线通信设备中处理分组时可以使用动态电压和频率缩放来节省功率的方法和装置。 在一些情况下，帧内检测可以允许设备确定是否从第一（例如，较低）电压电平转换到第二（例如较高）电压电平以处理接收帧的一个或多个分组。 对于一些分组类型，可以维持第一电压电平。 在其他情况下，设备可以从设备支持的多个带宽中确定要使用的带宽。 可以基于信道条件来确定带宽。 可以识别对应于所确定的带宽的电压电平，并且可以将处理电压缩放到所识别的电压电平。 该设备可以被配置为在无线局域网（WLAN）和/或蜂窝网络（例如，LTE）中操作。

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