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    Methods and apparatus for packet acquisition in mixed-rate wireless communication networks
    11.
    发明授权
    Methods and apparatus for packet acquisition in mixed-rate wireless communication networks 有权

    公开(公告)号：US09906391B2

    公开(公告)日：2018-02-27

    申请号：US14852207

    申请日：2015-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： Bin Tian ,  Tao Tian ,  Sameer Vermani ,  Eric Pierre Rebeiz ,  Dung Ngoc Doan ,  Lin Yang ,  Rahul Tandra

    IPC: H04W4/00 ,  H04L27/26

    CPC classification number: H04L27/261

    Abstract: A method of wirelessly communicating a packet including a first portion for transmission over at least one channel of a first transmission type and a second portion for transmission over at least one channel of a second transmission type. In one aspect, the method includes generating, at a wireless device, a packet including a first portion having a first symbol duration. The packet further includes a second portion having a second symbol duration greater than the first. The second portion can include a plurality of repeated portions of the signal field, the repeated portions having the second symbol duration. The first portion includes a first training field. The method further includes prepending or appending a second training field to the first portion. The second training field has the second symbol duration. The method further includes transmitting the packet.

    METHODS AND APPARATUS FOR GUARD INTERVAL INDICATION IN WIRELESS COMMUNICATION NETWORKS
    12.
    发明申请
    METHODS AND APPARATUS FOR GUARD INTERVAL INDICATION IN WIRELESS COMMUNICATION NETWORKS 审中-公开
    无线通信网络中的卫星间隔指示的方法和装置

    公开(公告)号：US20160119453A1

    公开(公告)日：2016-04-28

    申请号：US14887172

    申请日：2015-10-19

    Applicant: QUALCOMM Incorporated

    Inventor： Tao Tian ,  Lin Yang ,  Sameer Vermani ,  Bin Tian ,  Rahul Tandra ,  Youhan Kim

    IPC: H04L29/06 ,  H04W84/12 ,  H04L5/04

    CPC classification number: H04L69/22 ,  H04L5/04 ,  H04W28/06 ,  H04W84/12

    Abstract: A method of wirelessly communicating a packet includes generating, at a wireless device, a first packet. The first packet includes a first preamble decodable by a plurality of devices and a second preamble decodable by only a subset of the plurality of devices. The first preamble includes a first signal field, and the second preamble includes a second signal field. The method further includes setting a length indication of the first signal field to carry non-length signal information. The method further includes transmitting the first packet.

    Abstract translation: 无线地传送分组的方法包括在无线设备处生成第一分组。 第一分组包括可由多个设备解码的第一前同步码，以及仅由多个设备的子集解码的第二前同步码。 第一前导码包括第一信号字段，并且第二前导码包括第二信号字段。 该方法还包括设置第一信号字段的长度指示以携带非长度信号信息。 该方法还包括发送第一分组。

    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS
    14.
    发明申请
    METHODS AND APPARATUS FOR PACKET ACQUISITION IN MIXED-RATE WIRELESS COMMUNICATION NETWORKS 有权
    混合无线通信网络中分组获取的方法与设备

    公开(公告)号：US20160080973A1

    公开(公告)日：2016-03-17

    申请号：US14852207

    申请日：2015-09-11

    Applicant: QUALCOMM Incorporated

    Inventor： Bin Tian ,  Tao Tian ,  Sameer Vermani ,  Eric Pierre Rebeiz ,  Dung Ngoc Doan ,  Lin Yang ,  Rahul Tandra

    IPC: H04W28/06

    CPC classification number: H04L27/261

    Abstract: A method of wirelessly communicating a packet including a first portion for transmission over at least one channel of a first transmission type and a second portion for transmission over at least one channel of a second transmission type. In one aspect, the method includes generating, at a wireless device, a packet including a first portion having a first symbol duration. The packet further includes a second portion having a second symbol duration greater than the first. The second portion can include a plurality of repeated portions of the signal field, the repeated portions having the second symbol duration. The first portion includes a first training field. The method further includes prepending or appending a second training field to the first portion. The second training field has the second symbol duration. The method further includes transmitting the packet.

    Abstract translation: 一种无线地传送分组的方法，包括用于通过第一传输类型和第二部分的至少一个信道进行传输的第一部分，用于通过第二传输类型的至少一个信道进行传输。 在一个方面，该方法包括在无线设备处生成包括具有第一符号持续时间的第一部分的分组。 分组还包括具有大于第一符号持续时间的第二符号持续时间的第二部分。 第二部分可以包括信号场的多个重复部分，重复部分具有第二符号持续时间。 第一部分包括第一训练场。 该方法还包括向第一部分预先或附加第二训练场。 第二个训练场具有第二个符号持续时间。 该方法还包括发送分组。

    Orthogonal training field sequences for phase tracking
    16.
    发明授权
    Orthogonal training field sequences for phase tracking 有权

    公开(公告)号：US10285149B2

    公开(公告)日：2019-05-07

    申请号：US15182554

    申请日：2016-06-14

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Bin Tian ,  Tao Tian

    IPC: H04W56/00 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/0452 ,  H04L5/00 ,  H04L25/02 ,  H04L27/26

    Abstract: Techniques are provided for phase tracking in wireless communications using frames with some portions that use relatively long symbol durations. One technique includes generating a frame having a plurality of orthogonal training field sequences. Each orthogonal training field sequence is assigned to a different spatial stream. The frame is output for transmission as a single user (SU) transmission, a downlink multi-user (MU) multiple input multiple output (MIMO) transmission, or an orthogonal frequency division multiple access (OFDMA) transmission. After obtaining the frame, channel estimation and/or phase tracking may be performed based on the orthogonal training field sequences.

    Systems and methods for transmitting pilot tones
    19.
    发明授权
    Systems and methods for transmitting pilot tones 有权

    公开(公告)号：US09774481B2

    公开(公告)日：2017-09-26

    申请号：US13706816

    申请日：2012-12-06

    Applicant: QUALCOMM Incorporated

    Inventor： Lin Yang ,  Didier Johannes Richard Van Nee ,  Hemanth Sampath ,  Sameer Vermani ,  Tao Tian

    IPC: H04L27/10 ,  H04L5/00

    CPC classification number: H04L27/10 ,  H04L5/0048

    Abstract: Systems and methods for using travelling pilots for channel estimation are described herein. In one aspect, wireless communications apparatus is described that comprises a processor configured to divide a plurality of tones on which pilot signals are to be transmitted among a plurality of symbols, wherein each symbol includes less than all of the plurality of tones and the plurality of symbols includes at least a subset of the plurality of tones. The wireless communication apparatus further comprises a transmitter configured to transmit, during a given symbol, pilot signals on the tones included in the given symbol, wherein the tones over which the pilot signals are transmitted are changed from symbol to symbol.

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