知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

282 records (took 0.031 seconds)

    Systems and methods for wireless communication in sub gigahertz bands
    244.
    发明授权
    Systems and methods for wireless communication in sub gigahertz bands 有权

    公开(公告)号：US09667465B2

    公开(公告)日：2017-05-30

    申请号：US14846310

    申请日：2015-09-04

    Applicant: QUALCOMM Incorporated

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

    IPC: H04L27/26 ,  H04L5/00

    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.

    Access point proxy and multi-hop wireless communication
    245.
    发明授权
    Access point proxy and multi-hop wireless communication 有权
    接入点代理和多跳无线通信

    公开(公告)号：US09549371B2

    公开(公告)日：2017-01-17

    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 ,  H04W40/22 ,  H04W88/04 ,  H04L1/16

    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。

    Systems and methods for downlink frequency domain multiplexing transmissions
    246.
    发明授权
    Systems and methods for downlink frequency domain multiplexing transmissions 有权
    下行链路频域复用传输的系统和方法

    公开(公告)号：US09516634B2

    公开(公告)日：2016-12-06

    申请号：US14266751

    申请日：2014-04-30

    Applicant: QUALCOMM Incorporated

    Inventor： Hemanth Sampath ,  Bin Tian ,  Rahul Tandra ,  Gwendolyn Denise Barriac ,  Yan Zhou ,  Sameer Vermani ,  Simone Merlin

    IPC: H04W16/14 ,  H04W72/04 ,  H04W74/08 ,  H04W16/10 ,  H04W72/08 ,  H04W84/12

    CPC classification number: H04W72/042 ,  H04W16/10 ,  H04W16/14 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/082 ,  H04W74/0816 ,  H04W74/085 ,  H04W84/12 ,  H04W88/08

    Abstract: Systems, methods, and devices for transmitting data are described herein. In some aspects, a method comprises generating a first message. The first message may comprise an allocation of a first station to a first frequency channel and a second station to a second frequency channel. The method further comprises transmitting the first message over the first frequency channel and the second frequency channel. The method further comprises transmitting, after transmission of the first message, a second message to the first station using the first frequency channel. The method further comprises transmitting, after transmission of the first message, a third message to the second station using the second frequency channel.

    Abstract translation: 本文描述了用于传输数据的系统，方法和设备。 在一些方面，一种方法包括生成第一消息。 第一消息可以包括将第一站分配到第一频率信道，将第二站点分配给第二频率信道。 该方法还包括通过第一频道和第二频道发送第一消息。 所述方法还包括在使用所述第一频率信道向所述第一站发送所述第一消息之后的第二消息。 该方法还包括在使用第二频率信道向第二站传输第一消息之后发送第三消息。

    METHODS AND APPARATUS FOR WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM
    247.
    发明申请
    METHODS AND APPARATUS FOR WAVEFORM PROTECTION IN A MIXED WIRELESS COMMUNICATION SYSTEM 审中-公开
    用于混合无线通信系统中波形保护的方法和装置

    公开(公告)号：US20160255642A1

    公开(公告)日：2016-09-01

    申请号：US15051457

    申请日：2016-02-23

    Applicant: QUALCOMM Incorporated

    Inventor： Rahul Malik ,  Hemanth Sampath

    IPC: H04W72/12 ,  H04W74/04

    CPC classification number: H04W72/1215 ,  H04W74/04 ,  H04W74/0816 ,  H04W88/10

    Abstract: Certain aspects of the present disclosure relate to a methods and apparatus for wireless communication. In one aspect, a method a method of communication over a wireless medium. The method includes transmitting, from a first wireless device, a first communication reserving access to the wireless medium during an indicated first time period. The first communication includes a contention-based transmission. The method further includes transmitting, during the first time period, a second communication reserving access to the wireless medium during an indicated second time period at least partially overlapping the first. The second communication includes a scheduled transmission. The method further includes transmitting or receiving a long term evolution unlicensed (LTE-U) transmission during the second time period.

    Abstract translation: 本公开的某些方面涉及无线通信的方法和装置。 一方面，一种通过无线介质进行通信的方法。 该方法包括在第一时间段期间从第一无线设备发送保留对无线介质的访问的第一通信。 第一通信包括基于竞争的传输。 所述方法还包括在所述第一时间段期间，在指示的第二时间段期间，至少部分地与所述第一时间段重叠的第二通信传输保留对所述无线介质的访问。 第二通信包括预定传输。 该方法还包括在第二时间段期间发送或接收长期进化未许可（LTE-U）传输。

    Transmit opportunity (TXOP) based channel reuse
    248.
    发明授权
    Transmit opportunity (TXOP) based channel reuse 有权
    基于传输机会（TXOP）的信道重用

    公开(公告)号：US09408230B2

    公开(公告)日：2016-08-02

    申请号：US14268829

    申请日：2014-05-02

    Applicant: QUALCOMM Incorporated

    Inventor： Hao Zhu ,  Srinivas Katar ,  Simone Merlin ,  Chao Zou ,  Gwendolyn Denise Barriac ,  George Cherian ,  Santosh Paul Abraham ,  Lawrence Winston Yonge, III ,  Hemanth Sampath

    IPC: H04W76/00 ,  H04W74/00 ,  H04W74/04

    CPC classification number: H04W74/002 ,  H04W74/04

    Abstract: A method includes determining, at a first transmitter, whether to permit reuse of a first transmit opportunity (TXOP) associated with a message. The method further includes sending a portion of the message from the first transmitter to a first receiver. The portion of the message indicates whether reuse, by a reuse transmitter, of the first TXOP is permitted. When reuse of the first TXOP is permitted, the reuse transmitter is permitted to send a second message while the first transmitter sends a second portion of the message to the first receiver during the first TXOP.

    Abstract translation: 一种方法包括在第一发射机处确定是否允许与消息相关联的第一发射机会（TXOP）的重用。 该方法还包括将消息的一部分从第一发射机发送到第一接收机。 消息的部分指示是否允许由重用发射机重用第一TXOP。 当允许第一TXOP的重用时，允许重用发送器发送第二消息，同时第一发送器在第一TXOP期间向第一接收器发送消息的第二部分。

    Inter-frame spacing duration for sub-1 gigahertz wireless networks
    249.
    发明授权
    Inter-frame spacing duration for sub-1 gigahertz wireless networks 有权
    1千兆赫兹无线网络的帧间间隔时间

    公开(公告)号：US09386584B2

    公开(公告)日：2016-07-05

    申请号：US13901193

    申请日：2013-05-23

    Applicant: QUALCOMM Incorporated

    Inventor： Tevfik Yucek ,  Simone Merlin ,  Hemanth Sampath ,  Didier Johannes Richard Van Nee

    IPC: H04L12/413 ,  H04W72/04 ,  H04W74/08

    CPC classification number: H04W72/046 ,  H04W74/0808

    Abstract: Systems and methods of performing communication via a sub-1 gigahertz wireless network are disclosed. Values of one or more inter-frame spacing parameters for use in communication via the sub-1 gigahertz wireless network are also defined. The parameters may include a short inter-frame spacing (SIFS) time of 160 microseconds (μs). The parameters may also include a clear channel assessment (CCA) time of 40 μs. Additional parameters, such as air propagation time are also defined (e.g., for inclusion into a standard, such as Institute of Electrical and Electronics Engineers (IEEE) 802.11ah).

    Abstract translation: 公开了经由次1千兆赫无线网络进行通信的系统和方法。 还定义了用于通过次1千兆赫无线网络进行通信的一个或多个帧间间距参数的值。 参数可以包括160微秒（μs）的短帧间间隔（SIFS）时间。 这些参数还可以包括40μs的清晰的通道评估（CCA）时间。 还定义附加参数，例如空气传播时间（例如，用于包括在标准中，例如电气和电子工程师协会（IEEE）802.11ah）。

    METHODS AND APPARATUS FOR CHANNEL STATE INFORMATION FEEDBACK
    250.
    发明申请
    METHODS AND APPARATUS FOR CHANNEL STATE INFORMATION FEEDBACK 审中-公开
    通道状态信息反馈的方法和装置

    公开(公告)号：US20160142122A1

    公开(公告)日：2016-05-19

    申请号：US14975681

    申请日：2015-12-18

    Applicant: QUALCOMM Incorporated

    Inventor： Simone Merlin ,  Gwendolyn Denise Barriac ,  Hemanth Sampath ,  Sameer Vermani

    IPC: H04B7/06 ,  H04B7/04

    CPC classification number: H04B7/0626 ,  H04B7/024 ,  H04B7/0452 ,  H04B7/0617 ,  H04B7/0619 ,  H04L1/0026 ,  H04L1/0027

    Abstract: Methods and apparatus for channel state information feedback are provided. In one aspect, a method for wireless communication is provided. The method includes providing a request from an access point to two or more stations for the two or more stations to transmit channel state information (CSI) concurrently at a specific time. The method further includes receiving, at the access point, the CSI from each of the two or more stations.

    Abstract translation: 提供了信道状态信息反馈的方法和装置。 一方面，提供一种无线通信方法。 该方法包括向两个或多个站点提供来自两个或更多个站的接入点的请求，用于两个或多个站在特定时间同时发送信道状态信息（CSI）。 该方法还包括在接入点处从两个或更多个站中的每一个接收CSI。

Patent Agency Ranking