公开(公告)号：US20140286464A1

公开(公告)日：2014-09-25

申请号：US14298336

申请日：2014-06-06

Applicant: QUALCOMM Incorporated

Inventor： Mohammad Hossein Taghavi Nasrabadi ,  Hemanth Sampath ,  Avinash Jain

IPC: H04B7/08

CPC classification number: H04B7/082 ,  H04B7/0691 ,  H04B7/0695 ,  H04B7/0851 ,  H04B7/0874 ,  H04B7/088

Abstract: Aspects of the present disclosure propose a method for determining preferred transmit and receive antenna patterns of a wireless device with respect to another wireless device. The method generally includes determining the beamforming or calibrating coefficients corresponding to the preferred transmit and receive antenna patterns of a wireless device iteratively.

Abstract translation: 本公开的方面提出了一种用于确定无线设备相对于另一无线设备的优选发射和接收天线方向图的方法。 该方法通常包括迭代地确定对应于无线设备的优选发射和接收天线方向图的波束形成或校准系数。

公开(公告)号：US20140269360A1

公开(公告)日：2014-09-18

申请号：US13830873

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Amin Jafarian ,  George Cherian ,  Santosh Paul Abraham ,  Hemanth Sampath

IPC: H04W52/02 ,  H04W24/10

CPC classification number: H04W52/0209 ,  H04L1/16 ,  H04W40/22 ,  H04W88/04 ,  Y02D70/00 ,  Y02D70/142

Abstract: Methods and devices for communicating data in a wireless communications network are described herein. In one aspect, network layers are offloaded from a station to an access point. In another aspect, flow control is introduced between the station and access point. In another aspect, segmentation is introduced between the station and access point. In another aspect, keep alive is introduced between the station and access point. In another aspect, in addition to MAC layer sequencing and acknowledging, additional sequencing and acknowledging is performed between the station and access point to ensure reliable transmission of data. In another aspect, MAC layer sequencing and acknowledging is disabled. In another aspect, a last MPDU fragment is used to ensure reliable transmission of data.

Abstract translation: 本文描述了用于在无线通信网络中传送数据的方法和设备。 在一个方面，网络层从站点卸载到接入点。 在另一方面，在站和接入点之间引入流量控制。 在另一方面，在站和接入点之间引入分段。 在另一方面，在站和接入点之间引入保持活动。 在另一方面，除了MAC层排序和确认之外，在站和接入点之间执行附加的排序和确认以确保数据的可靠传输。 在另一方面，MAC层排序和确认被禁用。 在另一方面，使用最后一个MPDU片段来确保数据的可靠传输。

公开(公告)号：US20140219189A1

公开(公告)日：2014-08-07

申请号：US14134528

申请日：2013-12-19

Applicant: QUALCOMM Incorporated

Inventor： Dhananjay Ashok Gore ,  Hemanth Sampath ,  Jibing Wang ,  Tamer Kadous ,  Gwendolyn D. Barriac

IPC: H04B7/04

CPC classification number: H04B7/0456 ,  H04L1/0016 ,  H04L1/0026 ,  H04L1/0675 ,  H04L5/023 ,  H04L25/0206 ,  H04L27/2602 ,  H04L27/2608

Abstract: Techniques to enhance the performance in a wireless communication system using segments called subbands and using precoding are shown. According to one aspect, the bandwidth for transmission to an access terminal is constrained to a preferred bandwidth which is less than the bandwidth available for transmission to an access terminal and precoding information related to the subcarriers within the constrained bandwidth is provided to a transmitter. The precoding information related to the subcarriers within a constrained bandwidth provides feedback about the forward link channel properties relative to different subbands and may be fed back on a channel associated with the bandwidth.

Abstract translation: 示出了使用称为子带并使用预编码的段来增强在无线通信系统中的性能的技术。 根据一个方面，用于传输到接入终端的带宽被限制到比可用于传输到接入终端的带宽的优选带宽，并且将与受限带宽内的子载波相关的预编码信息提供给发射机。 与受限带宽内的子载波相关的预编码信息提供关于相对于不同子带的前向链路信道属性的反馈，并且可以在与带宽相关联的信道上反馈。

公开(公告)号：US08767873B2

公开(公告)日：2014-07-01

申请号：US13690497

申请日：2012-11-30

Applicant: QUALCOMM Incorporated

Inventor： Eugene J. Baik ,  Sameer Vermani ,  Lin Yang ,  Hemanth Sampath

IPC: H04L27/00

CPC classification number: H04L5/00 ,  H04B7/0413 ,  H04B7/0671

Abstract: Methods and devices for communicating in a communication system are described herein. One aspect of the subject matter described in the disclosure provides a method of communicating over one or more space-time streams. The method includes transmitting a precoded portion of a first stream with a bandwidth of 1 MHz or less. The method further includes transmitting, when there are at least two streams, a precoded portion of a second stream with a cyclic shift delay, relative to the first stream, of 4 μs. The method further includes transmitting, when there are at least three streams, a precoded portion of a third stream with a cyclic shift delay, relative to the first stream, of 1 μs. The method further includes transmitting, when there are at least four streams, a precoded portion of a fourth stream with a cyclic shift delay, relative to the first stream, of 5 μs.

Abstract translation: 本文描述了用于在通信系统中通信的方法和设备。 在本公开中描述的主题的一个方面提供了一种在一个或多个时空流上进行通信的方法。 该方法包括以1MHz或更小的带宽传输第一流的预编码部分。 该方法还包括：当存在至少两个流时，相对于第一流的循环移位延迟的第二流的预编码部分为4μs。 该方法还包括：当存在至少三个流时，相对于第一流的循环移位延迟的第三流的预编码部分为1μs。 该方法还包括：当存在至少四个流时，相对于第一流的循环移位延迟的第五流的预编码部分为5μs。

公开(公告)号：US20140079145A1

公开(公告)日：2014-03-20

申请号：US14022042

申请日：2013-09-09

Applicant: QUALCOMM Incorporated

Inventor： Hemanth Sampath ,  Eugene Jong-Hyon Baik ,  Sameer Vermani

IPC: H04B7/06 ,  H04B7/08

CPC classification number: H04B7/0602 ,  H04B7/0811 ,  H04B7/0814

Abstract: Apparatuses, methods, and devices for wireless communication. One aspect of the subject matter described in the disclosure provides a method of selecting one of a plurality of antennas. The method includes receiving, at a first antenna, a first training field of a training frame. The method further includes receiving, at a second antenna, a second training field of the training frame. The method further includes selecting one of the first and second antennas based on at least one training field.

Abstract translation: 用于无线通信的设备，方法和设备。 在本公开中描述的主题的一个方面提供了一种选择多个天线之一的方法。 该方法包括在第一天线处接收训练帧的第一训练场。 该方法还包括在第二天线处接收训练帧的第二训练场。 该方法还包括基于至少一个训练场选择第一和第二天线之一。

公开(公告)号：US20140050133A1

公开(公告)日：2014-02-20

申请号：US13831131

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Amin Jafarian ,  Simone Merlin ,  Stephen J. Shellhammer ,  Vincent Knowles Jones ,  Alfred Asterjadhi ,  Hemanth Sampath

IPC: H04W52/02

CPC classification number: H04W52/02 ,  H04W52/0235 ,  H04W52/028 ,  H04W52/0293 ,  H04W74/00 ,  H04W74/0816 ,  H04W74/085 ,  Y02D70/142

Abstract: Systems, methods, and devices for wireless communication. In one aspect an apparatus for wirelessly communicating with a wireless station is provided. The apparatus comprises a first transceiver configured to receive a backoff signal from the wireless station during a first time period, the backoff signal configured to indicate a second time period. The apparatus further comprises a processor operationally coupled to the first transceiver and configured to refrain the first transceiver from transmitting a wireless signal during the second time period.

Abstract translation: 用于无线通信的系统，方法和设备。 在一个方面，提供了一种用于与无线站无线通信的装置。 该装置包括第一收发机，其被配置为在第一时间段期间从无线站接收回退信号，该退避信号被配置为指示第二时间段。 该装置还包括处理器，其操作地耦合到第一收发器并且被配置为在第二时间段期间禁止第一收发器发送无线信号。

公开(公告)号：US20130343433A1

公开(公告)日：2013-12-26

申请号：US13887848

申请日：2013-05-06

Applicant: Qualcomm Incorporated

Inventor： Lin Yang ,  Youhan Kim ,  Sameer Vermani ,  Tevfik Yucek ,  Hemanth Sampath

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B17/102 ,  H04B17/26 ,  H04B17/318 ,  H04L5/0066

Abstract: Systems, methods, and devices for wireless communication are provided. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a processor configured to generate a packet for transmission via a wireless signal. The packet is generated for transmission over a bandwidth of 1 MHz using at least one orthogonal frequency-division multiplexing (OFDM) symbol. The apparatus further includes a transmitter configured to transmit the packet via the wireless signal having unique power spectral density characteristics.

Abstract translation: 提供了用于无线通信的系统，方法和设备。 一方面，提供一种无线通信装置。 该装置包括处理器，其被配置为生成用于经由无线信号传输的分组。 使用至少一个正交频分复用（OFDM）符号，生成用于在1MHz的带宽上传输的分组。 该装置还包括发射机，其被配置为经由具有独特的功率谱密度特性的无线信号来传送分组。

公开(公告)号：US20130243115A1

公开(公告)日：2013-09-19

申请号：US13875638

申请日：2013-05-02

Applicant: QUALCOMM INCORPORATED

Inventor： Mohammad Hossein Taghavi Nasrabadi ,  Sameer Vermani ,  Lin Yang ,  Hemanth Sampath

IPC: H04L27/26

CPC classification number: H04L27/2647 ,  H04L5/0023 ,  H04L5/0053 ,  H04L27/2613 ,  H04L27/2628

Abstract: Systems, methods, and devices for wireless communication. In one aspect, an apparatus for wireless communication is provided. The apparatus includes a receiver configured to receive a wireless signal comprising a packet. At least a portion of the wireless signal is configured to be received over a bandwidth lower than or equal to 1.25 MHz. The packet is formed from at least one orthogonal frequency-division multiplexing (OFDM) symbol comprising thirty-two tones. The thirty-two tones correspond to frequency subcarriers within the bandwidth. The thirty-two tones of the at least one OFDM symbol are allocated as: twenty-four data tones, two pilot tones, five guard tones, and one direct current (DC) tone. The apparatus includes a processor configured to evaluate the wireless signal. The processor includes a transform module configured to convert the at least one OFDM symbol into a frequency domain signal using a thirty-two point mode.

公开(公告)号：US20130121227A1

公开(公告)日：2013-05-16

申请号：US13713097

申请日：2012-12-13

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  Hemanth Sampath

IPC: H04W74/08 ,  H04W72/12

CPC classification number: H04W74/06 ,  H04W52/0222 ,  H04W72/12 ,  H04W72/1289 ,  H04W74/02 ,  H04W74/0816 ,  H04W76/14 ,  Y02D70/12 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/21 ,  Y02D70/22

Abstract: Certain aspects of the present disclosure relate to a technique for scheduling multiple peer-to-peer communications in a wireless network using an access point (AP). The existing power management framework for AP-based communications is utilized to achieve AP-based scheduling of peer-to-peer communications.

Abstract translation: 本公开的某些方面涉及一种用于使用接入点（AP）在无线网络中调度多个对等通信的技术。 用于基于AP的通信的现有功率管理框架被用于实现基于AP的对等通信调度。

公开(公告)号：US20240098555A1

公开(公告)日：2024-03-21

申请号：US18371050

申请日：2023-09-21

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Yanjun Sun ,  Hemanth Sampath ,  Bibhu Mohanty ,  Brian Michael Buesker ,  Yuan Zhou ,  Eric Vanbuhler ,  Danyang Cong ,  Raamkumar Balamurthi ,  Harshit Joshi ,  Vamsi Vegunta ,  Danny Jen ,  Nitin Ravinder

IPC: H04W28/02 ,  H04L5/00 ,  H04W8/24 ,  H04W74/08

CPC classification number: H04W28/0268 ,  H04L5/0082 ,  H04W8/245 ,  H04W74/0808

Abstract: This disclosure describes systems, devices, apparatus, and methods, including computer programs encoded on storage media, for controlling a network with one or more access points (APs). A controller may be configured to schedule at least some resources of the one or more APs to improve network efficiency. The APs may measure and report a variety of information and statistics to the controller. The controller may determine one or more transmission parameters and one or more operations a given AP is permitted to perform during a respective time interval. The controller may communicate the one or more transmission parameters using an indication, such as a message. At least one AP associated with the controller may communicate with stations (STAs) using the one or more transmission parameters.