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    Systems and methods for carrier frequency offset estimation for long training fields
    32.
    发明授权
    Systems and methods for carrier frequency offset estimation for long training fields 有权

    公开(公告)号：US09654308B2

    公开(公告)日：2017-05-16

    申请号：US14752050

    申请日：2015-06-26

    Applicant: Intel Corporation

    Inventor： Qinghua Li ,  Xiaogang Chen ,  Yuan Zhu ,  Robert Stacey

    IPC: H04K1/10 ,  G06K9/46 ,  H04L25/02 ,  H04L27/26 ,  H04L27/00 ,  H04L5/00 ,  H04L27/34

    CPC classification number: H04L25/0226 ,  H04L5/0016 ,  H04L27/0014 ,  H04L27/2675 ,  H04L27/34

    Abstract: This disclosure describes systems, and methods related to determining carrier frequency offset of a wireless communication channel based on a determined phase difference. In some embodiments, an access point is caused to receive one or more streams comprising one or more encoded long training field (LTF) symbols over the wireless communication channel from one or more user devices. The access point then determines a first phase of the wireless communication channel upon receipt of a first LTF symbol, and determines a second phase of the wireless communication channel upon receipt of a second LTF symbol. The access point next determines a phase difference between the first phase and the second phase. Based on the determined phase difference, the access point determines a carrier frequency offset of the wireless communication channel. Lastly, the access point modifies the wireless communication channel based at least in part on the determined CFO.

    Blind decoding for an enhanced physical downlink control channel (EPDCCH)
    37.
    发明授权
    Blind decoding for an enhanced physical downlink control channel (EPDCCH) 有权
    用于增强物理下行链路控制信道（EPDCCH）的盲解码

    公开(公告)号：US09167574B2

    公开(公告)日：2015-10-20

    申请号：US13931102

    申请日：2013-06-28

    Applicant: INTEL CORPORATION

    Inventor： Xiaogang Chen ,  Seunghee Han ,  Yuan Zhu ,  Qinghua Li ,  Jong-Kae Fwu

    IPC: H04W4/00 ,  H04W72/04 ,  H04L5/00

    CPC classification number: H04W72/042 ,  H04L1/0013 ,  H04L5/00 ,  H04L5/0007 ,  H04L5/0053 ,  H04W72/0446

    Abstract: Technology for blind decoding downlink control information (DCI) from an enhanced physical downlink control channel (EPDCCH) is disclosed. In an example, a user equipment (UE) can include a processor configured to: Recursively attempt to decode the DCI from enhanced control channel elements (ECCE) of the EPDCCH from physical resource block (PRB) region candidates in a PRB set using a selected set of enhanced resource element group (EREG) index maps for the ECCE until the DCI is successfully decoded; and decode the DCI with an EREG index map associated with a same aggregation level used to encode the DCI. Each EREG index map can be configured for a different aggregation level (AL).

    Abstract translation: 公开了一种用于从增强物理下行链路控制信道（EPDCCH）盲解码下行链路控制信息（DCI）的技术。 在一个示例中，用户设备（UE）可以包括处理器，其被配置为：递归地尝试从使用所选择的PRB集合的PRB集合中的物理资源块（PRB）区域候选的EPDCCH的增强控制信道元素（ECCE） 一组ECCE增强资源元素组（EREG）索引映射，直到DCI成功解码; 并用与用于编码DCI的相同聚合级别相关联的EREG索引映射来解码DCI。 可以为不同的聚合级别（AL）配置每个EREG索引映射。

    Packet extension for extremely high throughput (EHT) trigger frame
    40.
    发明授权
    Packet extension for extremely high throughput (EHT) trigger frame 有权

    公开(公告)号：US12126475B2

    公开(公告)日：2024-10-22

    申请号：US17131468

    申请日：2020-12-22

    Applicant: Intel Corporation

    Inventor： Xiaogang Chen ,  Qinghua Li ,  Thomas J. Kenney ,  Danny Alexander

    IPC: H04L27/26 ,  H04W72/12

    CPC classification number: H04L27/2602 ,  H04W72/12

    Abstract: An apparatus of a station (STA) includes memory and processing circuitry coupled to the memory. The processing circuitry is configured to encode a capabilities element for transmission to an access point (AP). The capabilities element including a media access control (MAC) capabilities information field indicating a trigger frame MAC padding duration. The processing circuitry decodes an extremely high throughput (EHT) protocol data unit (PPDU) received in response to the capabilities element. The EHT PPDU includes an EHT trigger frame (EHT-TF) in a data portion of the EHT PPDU, a packet extension (PE) field, and a dummy orthogonal frequency division multiplexing (OFDM) symbol extending the PE field. The processing circuitry performs physical layer (PHY) and MAC processing of the EHT PPDU based on a duration of the dummy OFDM symbol.

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