公开(公告)号：US09781235B2

公开(公告)日：2017-10-03

申请号：US14208808

申请日：2014-03-13

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Alfred Asterjadhi

IPC: H04L29/08 ,  H04W28/06

CPC classification number: H04L69/324 ,  H04W28/06

Abstract: Certain aspects of the present disclosure provide methods and apparatus for indicating a subframe format. For example, the apparatus may generally include a processing system configured to generate a subframe of a data unit, the subframe comprising a first field that indicates a presence or absence of at least one of a source address (SA) or destination address (DA) in the subframe. The apparatus may also include a transmitter configured to transmit the subframe to another apparatus using frame aggregation.

公开(公告)号：US20170245224A1

公开(公告)日：2017-08-24

申请号：US15439510

申请日：2017-02-22

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  Simone Merlin ,  Alfred Asterjadhi ,  George Cherian ,  Yan Zhou ,  Qingjiang Tian

IPC: H04W52/36 ,  H04W52/34

CPC classification number: H04W52/367 ,  H04W16/10 ,  H04W52/04 ,  H04W52/34 ,  H04W52/343 ,  H04W52/40 ,  H04W74/006 ,  H04W74/0808 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device may receive a configuration message that includes overlapping basic service set (OBSS) coordination parameters. The OBSS coordination parameters may be used to select an OBSS preamble detection (PD) threshold or a transmission (TX) power, or both. For example, an OBSS coordination parameter may include an indication of an OBSS PD threshold or the TX power or a range of OBSS PD thresholds or TX powers. In some cases, the coordination parameter may include selection criteria that may be used to select the indicated OBSS PD threshold or TX power. Additionally or alternatively, a range of selection criteria may be used to select from a range of OBSS PD thresholds and TX powers. The wireless device may use the selected OBSS PD threshold or TX power to communicate with an AP or other devices.

公开(公告)号：US09743275B2

公开(公告)日：2017-08-22

申请号：US14673589

申请日：2015-03-30

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Amin Jafarian

IPC: H04W8/26 ,  H04W4/06 ,  H04W74/00 ,  H04W4/00 ,  H04W28/02 ,  H04W72/00

CPC classification number: H04W8/26 ,  H04W4/00 ,  H04W4/06 ,  H04W28/02 ,  H04W72/005 ,  H04W74/006

Abstract: Certain aspects of the present disclosure provide methods and apparatus for s wireless communications, comprising a processing system configured to generate a frame with an information element (IE) having a partial virtual bitmap field that indicates zero or more basic service sets (BSSs) that have buffered group-cast traffic, wherein the partial virtual bitmap field comprises at least one encoded subfield that identities at least one individual BSS having buffered group-cast traffic using one or more bits of an identifier of the individual BSS, and an interface for outputting the frame containing the IE for transmission.

公开(公告)号：US20170202017A1

公开(公告)日：2017-07-13

申请号：US15405218

申请日：2017-01-12

Applicant: QUALCOMM Incorporated

Inventor： Yan Zhou ,  Simone Merlin ,  Gwendolyn Denise Barriac ,  Alfred Asterjadhi ,  George Cherian

IPC: H04W74/08 ,  H04W24/10 ,  H04W72/12

CPC classification number: H04W74/08 ,  H04B7/0452 ,  H04W24/10 ,  H04W72/0413 ,  H04W72/12 ,  H04W72/121 ,  H04W74/002 ,  H04W74/006 ,  H04W74/0816 ,  H04W88/08

Abstract: In some aspects, a method for configuring channel access parameters in a wireless communication system includes determining, at an access point, an enhanced distributed channel access (EDCA) parameter for a first subset of stations of a plurality of stations, the first subset of stations capable of transmitting multi-user uplink transmissions. The method further includes generating an information element including the EDCA parameter. The method further includes transmitting the information element such that the information element is decodable by the first subset of stations and not by a second subset of stations of the plurality of stations.

公开(公告)号：US20170164392A1

公开(公告)日：2017-06-08

申请号：US15364196

申请日：2016-11-29

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Alfred Asterjadhi

IPC: H04W72/12

CPC classification number: H04W72/1268 ,  H04W28/06 ,  H04W72/1289

Abstract: The disclosure provides methods and apparatuses for multiple user uplink. One aspect of the disclosure provides a method for wireless communication. The method comprises receiving a trigger frame from an access point indicating a target transmission duration for transmission of a physical layer (PHY) service data unit (PSDU) to the access point. The method also comprises generating an aggregated medium access control (MAC) packet data unit (A-MPDU) frame comprising at least one A-MPDU subframe, the A-MPDU frame having a first length, determining whether an additional A-MPDU subframe having a second length may be added to the A-MPDU frame based at least in part on the first length, the second length, and the target transmission duration, and including one or more padding subframes in the A-MPDU frame based at least in part on a comparison between the first length and the target transmission duration.

公开(公告)号：US20170135133A1

公开(公告)日：2017-05-11

申请号：US15342906

申请日：2016-11-03

Applicant: QUALCOMM Incorporated

Inventor： Gwendolyn Denise Barriac ,  George Cherian ,  Simone Merlin ,  Alfred Asterjadhi ,  Yan Zhou ,  Qingjiang Tian

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0808 ,  H04W52/287 ,  H04W52/50 ,  H04W72/0473 ,  H04W74/0816

Abstract: A wireless first device may receive a packet from another device from an overlapping basic service set (OBSS). A received power of the packet may be greater than a threshold for transmitting during the time of the packet. If the first device reduces its transmit power, the first device may increase the threshold. If the received power is less than the increased threshold, the first device may count down a backoff count during a transmission time or transmission opportunity of the packet. In some cases, after the transmission time or transmission opportunity, the first device may increase its transmission power. In some cases, the condition for counting down a backoff count may also include initiating or finishing the transmission during the transmission time or the transmission opportunity of the packet, or transmitting at the reduced power.

公开(公告)号：US20170064633A1

公开(公告)日：2017-03-02

申请号：US15246423

申请日：2016-08-24

Applicant: QUALCOMM Incorporated

Inventor： Zhanfeng Jia ,  Alireza Raissinia ,  Alfred Asterjadhi ,  James Simon Cho ,  Sandip HomChaudhuri ,  Sumeet Kumar ,  Simone Merlin ,  Ning Zhang ,  Ashok Ranganath ,  Ian O'Donnell ,  Jason Young ,  BadriSrinvasan Sampathkumar

IPC: H04W52/02

CPC classification number: H04W52/0258 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0225 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for saving power in wireless communications. One aspect includes providing an indication of a sleep duration for transmission to a wireless node, communicating with the wireless node during a target wakeup time (TWT), wherein the communication comprises at least one of providing data for transmission to the wireless node or obtaining data received from the wireless node, and refraining from providing data for transmission to the wireless node for at least the indicated sleep duration based at least in part on timing of the communication. Another aspect includes receiving an indication of a sleep duration from a wireless node, communicating with the wireless node during a time slot of a TWT, and entering a sleep mode for the indicated sleep duration based at least in part on timing of the communication with the wireless node during the time slot of the TWT.

Abstract translation: 描述了在无线通信中节省功率的方法，系统和设备。 一个方面包括在目标唤醒时间（TWT）期间提供用于传输到无线节点的睡眠持续时间的指示，与无线节点进行通信，其中该通信包括提供用于传输到无线节点的数据或获得数据的至少一个 从所述无线节点接收，并且至少部分地基于所述通信的定时，避免提供用于至少所指示的睡眠持续时间的无线节点传输的数据。 另一方面包括从TWT接收来自无线节点的睡眠持续时间的指示，在TWT的时隙期间与无线节点进行通信，以及至少部分地基于与所述无线节点的通信的定时进入针对所指示的睡眠持续时间的睡眠模式 无线节点在TWT的时隙。

公开(公告)号：US20160294515A1

公开(公告)日：2016-10-06

申请号：US15090431

申请日：2016-04-04

Applicant: QUALCOMM Incorporated

Inventor： Maarten Menzo Wentink ,  Simone Merlin ,  Alfred Asterjadhi

IPC: H04L5/00

CPC classification number: H04L5/005 ,  H04L1/0079 ,  H04L1/1671

Abstract: Systems and methods are disclosed that may communicate a control aggregate frame from a first wireless device to a second wireless device. A first wireless device may form a control aggregate frame by aggregating a plurality of first control frames into the control aggregate frame. The control aggregate frame may include a single media access control (MAC) header, a plurality of first aggregation fields, each storing a control frame subtype for a corresponding one of the plurality of first control frames, and a plurality of first payload fields, each storing a corresponding one of the plurality of first control frames. After generating the control aggregate frame, the first wireless device may transmit it to the second wireless device.

Abstract translation: 公开了可以将控制聚合帧从第一无线设备传送到第二无线设备的系统和方法。 第一无线设备可以通过将多个第一控制帧聚合到控制聚合帧中来形成控制聚合帧。 控制聚合帧可以包括单个媒体访问控制（MAC）报头，多个第一聚合字段，每个第一聚合字段存储用于多个第一控制帧中的相应一个的控制帧子类型，以及多个第一有效负载字段，每个 存储多个第一控制帧中的对应的一个。 在生成控制聚合帧之后，第一无线设备可以将其发送到第二无线设备。

公开(公告)号：US09459953B2

公开(公告)日：2016-10-04

申请号：US14619280

申请日：2015-02-11

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Bin Tian

IPC: H04L1/18 ,  G06F11/10 ,  H04L1/00 ,  H04W24/02 ,  H04L1/16

CPC classification number: G06F11/10 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0061 ,  H04L1/0063 ,  H04L1/0066 ,  H04L1/0072 ,  H04L1/0083 ,  H04L1/1614 ,  H04W24/02

Abstract: Certain aspects of the present disclosure provide methods and apparatus for enhancing error protection for wireless transmissions. The apparatus may generally include a processing system configured to generate a first error check value for a packet to be transmitted to another apparatus, the first error check value generated based on a remaining portion of the packet, and generate a second error check value for the packet based on information known or expected by the other apparatus and other information transmitted in the packet. The apparatus may also include a transmitter configured to transmit the packet to the other apparatus, the packet comprising the first and second error check values.

Abstract translation: 本公开的某些方面提供了用于增强无线传输的误差保护的方法和装置。 该装置通常可以包括处理系统，该处理系统被配置为生成要发送到另一装置的分组的第一错误检查值，基于分组的剩余部分生成的第一错误检查值，并且生成第二错误检查值 基于其他装置已知或预期的信息和在分组中发送的其他信息的分组。 该装置还可以包括被配置为将分组发送到另一装置的发射机，该分组包括第一和第二错误校验值。

公开(公告)号：US20160261327A1

公开(公告)日：2016-09-08

申请号：US15052834

申请日：2016-02-24

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Youhan Kim ,  Bin Tian ,  George Cherian ,  Alfred Asterjadhi ,  Sameer Vermani

IPC: H04B7/06 ,  H04W72/04

CPC classification number: H04B7/0626 ,  H04B7/0617 ,  H04L1/0026 ,  H04L1/0027 ,  H04L5/0048 ,  H04L5/0057 ,  H04W28/18 ,  H04W72/0413 ,  H04W72/042 ,  H04W84/12

Abstract: Methods and apparatus for channel state information feedback are provided. In various aspects, a message is transmitted to one or more wireless communication devices requesting channel state information. In some aspects, a first portion of the message is transmitted according to a first or second, and contains first information intended for a first or second set of wireless communication devices compatible with the first or second format respectively. In some aspects, a second portion of the first message is transmitted according to the second format, and contains second information intended for the second set of wireless communication devices compatible with the second format. In some aspects, this information may comprise at least one of a list of identifiers, a set of parameters for estimating the channel state information estimation, and uplink transmission allocation information.

Abstract translation: 提供了信道状态信息反馈的方法和装置。 在各个方面，向一个或多个无线通信设备发送消息以请求信道状态信息。 在一些方面，消息的第一部分根据第一或第二传输，并且包含分别用于与第一或第二格式兼容的第一或第二组无线通信设备的第一信息。 在一些方面，根据第二格式发送第一消息的第二部分，并且包含旨在用于与第二格式兼容的第二组无线通信装置的第二信息。 在一些方面，该信息可以包括标识符列表，用于估计信道状态信息估计的一组参数以及上行链路传输分配信息中的至少一个。