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    ADAPTIVE CONTROL OF RF LOW POWER MODES IN A MULTI-RATE WIRELESS SYSTEM USING MCS VALUE
    42.
    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 and system for dual-mode rate control in a wireless communication system
    43.
    发明授权
    Method and system for dual-mode rate control in a wireless communication system 有权
    无线通信系统中双模速率控制的方法和系统

    公开(公告)号：US09055459B2

    公开(公告)日：2015-06-09

    申请号：US13762342

    申请日：2013-02-07

    Applicant: QUALCOMM Incorporated

    Inventor： Shu Du ,  Zhanfeng Jia ,  Ning Zhang ,  James S. Cho ,  Qinghai Gao ,  Rahul Tandra

    IPC: H04W24/02 ,  H04B7/04 ,  H04L1/00

    CPC classification number: H04W24/02 ,  H04B7/0452 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0033 ,  H04L1/06 ,  Y02D50/10

    Abstract: A method of performing dual-mode rate control for an access point in a wireless communication system includes a single-user mode of operation and a multi-user mode of operation. In the single-user mode, a basic rate for a station is determined based on channel conditions. In the multi-user mode, a rate for a plurality of stations is determined using tracking. The tracking includes performing a sounding for the plurality of stations. An initial multi-user current rate is then set equal to a function of a number of users and the basic rate. A transmission is sent to the plurality of stations using the current rate. A packet error rate (PER) is detected during transmission to the plurality of stations. The current rate is adjusted based on the PER. After rate adjustment, either sounding is triggered or the method returns to sending a transmission using the current rate.

    Abstract translation: 对无线通信系统中的接入点进行双模速率控制的方法包括单用户操作模式和多用户操作模式。 在单用户模式中，基于信道条件确定站的基本速率。 在多用户模式中，使用跟踪确定多个站的速率。 跟踪包括对多个站执行探测。 然后将初始多用户当前速率设置为等于用户数和基本速率的函数。 使用当前速率向多个站发送传输。 在传输到多个站期间检测到分组错误率（PER）。 当前费率根据PER进行调整。 速率调整后，触发声音或方法返回使用当前速率发送传输。

    INDICATING A BUSY PERIOD IN A WIRELESS NETWORK
    44.
    发明申请
    INDICATING A BUSY PERIOD IN A WIRELESS NETWORK 有权
    在无线网络中指示繁忙时段

    公开(公告)号：US20150092639A1

    公开(公告)日：2015-04-02

    申请号：US14041209

    申请日：2013-09-30

    Applicant: QUALCOMM Incorporated

    Inventor： Zhanfeng Jia ,  Shu Du

    IPC: H04W52/02

    CPC classification number: H04W52/02 ,  H04W52/0212 ,  H04W72/1263 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/162 ,  Y02D70/22

    Abstract: An access point may transmit, to a first wireless device, a message indicating a busy period of the access point. The busy period is a time during which the access point will perform wireless operations with at least a second wireless device different from the first wireless device. During the busy period, the access point may refrain from transmitting from the access point to the first wireless device. The message indicating the busy period may include a duration of the busy period. The message indicating the busy period may be included in a portion of a data transmission to the first wireless device. The first wireless device may enter a low power mode (e.g., sleep operating state) responsive to the busy period.

    Abstract translation: 接入点可以向第一无线设备发送指示接入点的繁忙时段的消息。 繁忙时段是接入点将与不同于第一无线设备的至少第二无线设备执行无线操作的时间。 在繁忙期间，接入点可以避免从接入点向第一无线设备发送。 指示繁忙时段的消息可以包括繁忙时段的持续时间。 指示繁忙时段的消息可以被包括在向第一无线设备的数据传输的一部分中。 响应于繁忙时段，第一无线设备可以进入低功率模式（例如，睡眠操作状态）。

    Methods Permitting A Wireless System Receiver To Determine And Report Channel Conditions To A System Transmitter
    45.
    发明申请
    Methods Permitting A Wireless System Receiver To Determine And Report Channel Conditions To A System Transmitter 有权
    允许无线系统接收机确定并向系统发送器报告信道条件的方法

    公开(公告)号：US20140269377A1

    公开(公告)日：2014-09-18

    申请号：US13924377

    申请日：2013-06-21

    Applicant: QUALCOMM Incorporated

    Inventor： Zhanfeng Jia ,  Shu Du ,  Ning Zhang

    IPC: H04W24/00

    CPC classification number: H04L1/00 ,  H04L1/0025 ,  H04L1/0026 ,  H04L1/1671 ,  H04L1/20

    Abstract: A method of providing feedback on channel observations to a transmitter includes observing a channel at a receiver based on received signals from the transmitter and determining whether a packet error rate (PER) is rising based on the observing. The receiver determines whether a rising PER is caused by channel noise or interference, and transmits a message to the transmitter indicating the cause of the rising PER. The cause may be encoded in reserved bits of a block acknowledgement (BA) frame or an Acknowledge (ACK) frame, or in a modulation coding scheme (MCS) used to transmit the message. The cause may be detected in response to SNR/RSSI level of received signals, or a number of receiver restarts. The transmitter may change the transmit rate adaptation algorithm to use a lower MCS if channel noise causes the rising PER, and a higher MCS if interference causes the rising PER.

    Abstract translation: 向发射机提供信道观测的反馈的方法包括基于来自发射机的接收信号观察接收机处的信道，并基于观测确定分组差错率（PER）是否正在上升。 接收机确定上升的PER是由信道噪声还是干扰引起的，并且向发射机发送指示引起增加的PER的原因的消息。 原因可以在块确认（BA）帧或应答（ACK）帧的保留位或者用于发送消息的调制编码方案（MCS）中编码。 可以响应于接收到的信号的SNR / RSSI电平或者接收机重启的次数来检测原因。 如果信道噪声导致上升的PER，则发射机可以改变发射速率自适应算法以使用较低的MCS，如果干扰导致上升的PER，则发射机可以改变较高的MCS。

    Multicast Rate Control
    46.
    发明申请
    Multicast Rate Control 有权
    组播速率控制

    公开(公告)号：US20140133303A1

    公开(公告)日：2014-05-15

    申请号：US13677251

    申请日：2012-11-14

    Applicant: QUALCOMM INCORPORATED

    Inventor： Zhanfeng Jia ,  Shu Du ,  Ning Zhang

    IPC: H04W28/02 ,  H04L12/18 ,  H04W4/06

    CPC classification number: H04W28/0236 ,  H04L1/0002 ,  H04L1/0019 ,  H04L1/0027 ,  H04L1/0033 ,  H04L1/1685 ,  H04L12/189 ,  H04L2001/0093 ,  H04W4/06

    Abstract: A method of providing multicast rate control in a wireless communication device can include transmitting data frames to a plurality of stations in a multicast group with a first data rate. Acknowledgements (ACKs) can then be requested from a first subset of the plurality of stations. Frame losses can be determined using the ACKs from the first subset. A second data rate can be determined based on the frame losses with the first subset. A second subset of the plurality of stations can be selected based on the frame losses with the first subset. Data frames can be transmitted to the plurality of stations with the second data rate. Notably, ACKs only from the second subset of the plurality of stations are requested. Frame losses for the second subset can be determined using those ACKs. A current data rate can be adjusted based on the frame losses for the subset and at least one predetermined threshold. Data frames can be transmitted to the plurality of stations using the adjusted data rate.

    Abstract translation: 一种在无线通信设备中提供组播速率控制的方法可以包括以多个第一数据速率向组播组中的多个站发送数据帧。 然后可以从多个站的第一子集请求致谢（ACK）。 可以使用来自第一子集的ACK来确定帧丢失。 可以基于第一子集的帧丢失来确定第二数据速率。 可以基于与第一子集的帧丢失来选择多个站的第二子集。 可以以第二数据速率将数据帧发送到多个站。 值得注意的是，请求仅来自多个站的第二子集的ACK。 可以使用这些ACK来确定第二子集的帧丢失。 可以基于子集的帧丢失和至少一个预定阈值来调整当前数据速率。 可以使用经调整的数据速率将数据帧发送到多个站。

    SYSTEM AND METHOD FOR CONTROLLING PAGING DELAY WITH TIMING ARRANGEMENTS AND DUAL PAGE SCANS
    50.
    发明申请
    SYSTEM AND METHOD FOR CONTROLLING PAGING DELAY WITH TIMING ARRANGEMENTS AND DUAL PAGE SCANS 审中-公开

    公开(公告)号：US20170105194A1

    公开(公告)日：2017-04-13

    申请号：US15384636

    申请日：2016-12-20

    Applicant: QUALCOMM Incorporated

    Inventor： David Jonathan Julian ,  Zhanfeng Jia ,  Qingjiang Tian ,  Edward Harrison Teague

    IPC: H04W68/02 ,  H04W8/00

    CPC classification number: H04W68/02 ,  H04W8/005 ,  H04W76/28 ,  H04W84/18 ,  H04W88/02

    Abstract: Systems and methods for controlling a delay associated with paging a remote device. In one implementation, a paging device arranges page operations such that if one of two consecutive page scans performed by a remote device occurs during a response scan, the other page scan occurs during the transmission of a page. In another implementation, a device scanning for a page arranges page scans such that if one of two consecutive page scans occurs during a page response scan, the other page scan occurs during the transmission of a page. In another implementation, a device scanning for a page performs a series of sets of separate page scans, wherein the time interval between two of separate scans in a set is less than the time interval between adjacent sets. The page scans in a set are configured to ensure that one of them occurs during the transmission of a page.

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