公开(公告)号：US20140341099A1

公开(公告)日：2014-11-20

申请号：US14277623

申请日：2014-05-14

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Arunkumar Jayaraman ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Shu Du ,  Alireza Raissinia ,  Jibing Wang ,  Sandip Homchaudhuri

IPC: H04W52/02 ,  H04L1/08

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

公开(公告)号：US20140341073A1

公开(公告)日：2014-11-20

申请号：US14274412

申请日：2014-05-09

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  Guido Robert Frederiks

IPC: H04W48/18 ,  H04W56/00 ,  H04W48/16

CPC classification number: H04W48/18 ,  H04L67/1061 ,  H04L67/16 ,  H04W8/005 ,  H04W48/16 ,  H04W56/001 ,  H04W84/18

Abstract: Methods, apparatuses, and computer program products for the selection, identification, and comparison of metrics used by a wireless device within range of a plurality of wireless communication systems, such as neighborhood aware networks, to determine which wireless communication system provides the desired capabilities and services. These metrics can be dynamically selected by a device and implemented for software decision making as additional wireless communication systems with new, different, or better characteristics fall within range of a given wireless device.

Abstract translation: 用于在诸如邻近感知网络的多个无线通信系统的范围内对无线设备使用的度量的选择，识别和比较的方法，设备和计算机程序产品，以确定哪个无线通信系统提供期望的能力，以及 服务。 这些度量可以被设备动态地选择并且被实现用于软件决策，因为具有新的，不同的或更好的特征的附加无线通信系统落在给定无线设备的范围内。

公开(公告)号：US20140269994A1

公开(公告)日：2014-09-18

申请号：US13826659

申请日：2013-03-14

Applicant: QUALCOMM INCORPORATED

Inventor： Sandip HomChaudhuri ,  Kai Shi ,  Alireza Raissinia ,  Ning Zhang

IPC: H04W52/02 ,  H04B7/08

CPC classification number: H04W52/0209 ,  H04B7/0617 ,  H04B7/0822 ,  H04B7/0874 ,  H04W52/028 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/444

Abstract: A wireless device that operates in accordance with the IEEE 802.11 standard receives the preamble of a packet with the highest number of receive chains enabled, thereby obtaining the highest gain, detection sensitivity and range. The wireless device determines a signal-to-noise ratio (SNR) in response to two different short training fields (STFs) in the preamble. The wireless device also determines a modulation and coding scheme (MCS) and a number of spatial streams (Nss) used to transmit the received packet in response to a signal field of the preamble. The wireless device uses these determined parameters to identify a minimum number of the receive chains required to reliably receive the packet. The wireless device uses only the identified minimum number of receive chains to perform channel estimation and receive the data portion of the packet.

Abstract translation: 根据IEEE 802.11标准操作的无线设备接收具有最高数量的接收链启用的分组的前同步码，从而获得最高增益，检测灵敏度和范围。 无线设备响应于前导码中的两个不同的短训练场（STF）来确定信噪比（SNR）。 无线设备还确定响应于前导码的信号字段而用于发送所接收的分组的调制和编码方案（MCS）和多个空间流（Nss）。 无线设备使用这些确定的参数来识别可靠地接收分组所需的接收链的最小数量。 无线设备仅使用所识别的最小数量的接收链来执行信道估计并接收数据包的数据部分。

公开(公告)号：US20140254426A1

公开(公告)日：2014-09-11

申请号：US14197018

申请日：2014-03-04

Applicant: QUALCOMM Incorporated

Inventor： Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  Guido Robert Frederiks

IPC: H04W48/10 ,  H04W52/02

CPC classification number: H04W48/10 ,  H04W52/0216 ,  H04W52/0229 ,  H04W84/18 ,  Y02D70/142 ,  Y02D70/22

Abstract: Methods, apparatus, and computer readable storage mediums for enabling reduced power consumption in wireless devices operating in a neighbor aware network are disclosed. In one aspect, a method includes generating a first message, the first message indicating beacon transmit window information, the beacon transmit window information indicating a first time interval when one or more beacon messages are transmittable, and transmitting the first message on the neighbor aware network.

Abstract translation: 公开了用于实现在相邻感知网络中操作的无线设备中的能量消耗的方法，装置和计算机可读存储介质。 一方面，一种方法包括生成第一消息，指示信标发送窗口信息的第一消息，指示当一个或多个信标消息可发送时的第一时间间隔的信标发送窗口信息，以及在邻居感知网络上发送第一消息 。

公开(公告)号：US20140198725A1

公开(公告)日：2014-07-17

申请号：US14105114

申请日：2013-12-12

Applicant: QUALCOMM, Incorporated

Inventor： Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  Ashish Kumar Shukla ,  Guido Robert Frederiks ,  Simone Merlin

IPC: H04W8/00 ,  H04W76/02

CPC classification number: H04W8/005 ,  H04L67/16 ,  H04W4/70 ,  H04W4/80 ,  H04W48/18 ,  H04W76/00 ,  H04W76/10 ,  H04W84/18

Abstract: Systems and methods for formatting frames in neighborhood aware networks are described herein. One aspect of the subject matter described in the disclosure provides a method of communicating in a wireless neighborhood aware network (NAN). The method includes determining a discovery period. The method further includes generating a discovery window information element indicating a start time of a discovery window. The method further includes generating a NAN beacon or other sync frame comprising the discovery period and the discovery window information element. The method further includes transmitting, at a wireless device, the NAN beacon or other sync frame during the discovery window.

Abstract translation: 本文描述了用于在邻居感知网络中格式化帧的系统和方法。 在本公开中描述的主题的一个方面提供了一种在无线邻域感知网络（NAN）中进行通信的方法。 该方法包括确定发现周期。 该方法还包括生成指示发现窗口的开始时间的发现窗口信息元素。 该方法还包括生成包括发现周期和发现窗口信息元素的NAN信标或其他同步帧。 该方法还包括在发现窗口期间在无线设备处发送NAN信标或其他同步帧。

公开(公告)号：US12132682B2

公开(公告)日：2024-10-29

申请号：US18541388

申请日：2023-12-15

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Simone Merlin

IPC: H04B7/06 ,  H04B17/318 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04L5/0053 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

公开(公告)号：US20240214906A1

公开(公告)日：2024-06-27

申请号：US18392216

申请日：2023-12-21

Applicant: Qualcomm Incorporated

Inventor： Abhishek Pramod Patil ,  George Cherian ,  Alfred Asterjadhi ,  Sandip Homchaudhuri ,  Maarten Menzo Wentink ,  Alireza Raissinia ,  Lochan Verma ,  Padmanabhan Venkataraman Karthic

IPC: H04W40/24 ,  H04W8/00 ,  H04W8/24 ,  H04W28/02 ,  H04W80/02 ,  H04W80/08

CPC classification number: H04W40/244 ,  H04W8/005 ,  H04W8/245 ,  H04W28/0263 ,  H04W80/02 ,  H04W80/08

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for high efficiency (HE) beacons. HE supported access points (APs) and stations (STAs) may operate on resource deployments used for Wi-Fi technology and without support for legacy devices, also referred to as a greenfield deployment. An AP may identify updated capability information and transmit a HE physical layer convergence protocol (PLCP) protocol data unit (PPDU) including a beacon frame. A STA may receive, from the AP, the HE or EHT PPDU and identify an indication of change to a content or format of the beacon frame relative to a reference beacon frame. Based on the identified indication, the STA may then determine an updated content or format for the beacon frame and process the beacon frame or skip processing for one or more portions of the beacon frame.

公开(公告)号：US11888593B2

公开(公告)日：2024-01-30

申请号：US17382145

申请日：2021-07-21

Applicant: QUALCOMM Incorporated

Inventor： Stephen Jay Shellhammer ,  Bin Tian ,  Alireza Raissinia ,  Simone Merlin

IPC: H04B7/06 ,  H04L25/02 ,  H04L5/00 ,  H04B17/318

CPC classification number: H04L5/0053 ,  H04B17/318

Abstract: Methods, systems, and devices for wireless communications are described. A station (STA) may receive a null data packet (NDP) on a plurality of subcarriers, and the STA may generate a channel state information (CSI) matrix for each subcarrier of the plurality of subcarriers. After generating a CSI matrix for a subcarrier, such as at least one subcarrier, the STA may scale each value in the CSI matrix using a power-of-two value to minimize complexity. Specifically, instead of scaling each value in the CSI matrix to a value between zero and one using divisions (for example, which may be computationally expensive), the STA may use shifting to scale each value in the CSI matrix. The STA may then quantize the scaled values in the CSI matrix for reporting, and the STA may transmit the quantized, scaled values in the CSI matrix in a CSI report.

公开(公告)号：US20230337025A1

公开(公告)日：2023-10-19

申请号：US17722197

申请日：2022-04-15

Applicant: QUALCOMM Incorporated

Inventor： Yanjun Sun ,  Alireza Raissinia ,  Stephen Jay Shellhammer ,  Xiaoxin Zhang ,  George Cherian ,  Alfred Asterjadhi ,  Abhishek Pramod Patil

IPC: H04W24/08

CPC classification number: H04W24/08

Abstract: Methods, systems, and devices for wireless communications are described. In some aspects, two devices may support signaling and messaging designs that support bandwidths that are greater than 160 MHz for ranging null data packets (NDPs). For example, various signaling and messaging designs may support a use of a 320 MHz bandwidth for ranging NDPs as part of a ranging measurement procedure, which may offer greater resolution than narrower bandwidths. The signaling and messaging designs may include one or more updates for a null data packet announcement (NDPA) frame, for a trigger frame, for session negation messages (such as one or both of an initial fine timing measurement (IFTM) frame and an IFTM request (IFTMR) frame), for segmentation techniques for ranging NDPs, or for any combination thereof.

公开(公告)号：US20220337338A1

公开(公告)日：2022-10-20

申请号：US17233341

申请日：2021-04-16

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Srinivas Katar ,  Chao Zou ,  Alireza Raissinia ,  Lei Li ,  Deepak Nagawade

IPC: H04L1/00 ,  H04W28/02 ,  H04W28/08

Abstract: This disclosure provides systems, methods, apparatus, including computer programs encoded on computer storage media that support station performance enhancement with multi-link operations. An example method may include determining at least one network metric related to at least one link between a station (STA) and access points (APs) and determining at least one connection parameter related to at least one application operating on the STA. The method may include selecting a mode of multi-link operations based at least in part on the network metric and the connection parameter, wherein the mode of multi-link operations comprises one or more of: a multi-link mode in which the STA operates over a first link and a second link at a same time or a single-link mode in which the STA operates over one of the first or second links and communicating with the one or more APs according to the selected mode.