Method and apparatus for quadrature signal modulation

    公开(公告)号:US09794104B1

    公开(公告)日:2017-10-17

    申请号:US15095787

    申请日:2016-04-11

    CPC classification number: H04L27/36 H04B1/02

    Abstract: Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.

    System and Method for Auto-Detection of WLAN Packets using STF
    44.
    发明申请
    System and Method for Auto-Detection of WLAN Packets using STF 审中-公开
    使用STF自动检测WLAN报文的系统和方法

    公开(公告)号:US20160241425A1

    公开(公告)日:2016-08-18

    申请号:US15043089

    申请日:2016-02-12

    Inventor: Yan Xin Sheng Sun

    Abstract: A system and method of auto-detection of WLAN packets includes selecting a first Golay sequence from a first pair of Golay complementary sequences associated with first packet type, each Golay sequence of the first pair of Golay complementary sequences being zero correlation zone (ZCZ) sequences with each Golay sequence of a second pair of Golay complementary sequences associated with a second packet type, and transmitting a wireless packet carrying a short training field (STF) that includes one or more instances of the first Golay sequence.

    Abstract translation: WLAN分组的自动检测的系统和方法包括从与第一分组类型相关联的第一对Golay互补序列中选择第一Golay序列,第一对Golay互补序列对的每个Golay序列为零相关区(ZCZ)序列 每个Golay序列具有与第二分组类型相关联的第二对Golay互补序列,并且发送携带包括第一Golay序列的一个或多个实例的短训练场(STF)的无线分组。

    Information sending/receiving method and apparatus

    公开(公告)号:US12273303B2

    公开(公告)日:2025-04-08

    申请号:US17815383

    申请日:2022-07-27

    Abstract: Embodiments of this application relate to the communications field, and in particular, to an information sending/receiving method and apparatus in the communications field. The information receiving method includes: determining an information receiving time based on any two of a time division duplex sector sweep acknowledgement frame count index, a count index, and a time division duplex sector sweep frame count index, duration of a time division duplex sector sweep frame, and duration of a time division duplex sector sweep acknowledgement frame; and receiving information at the determined information receiving time. According to the information receiving/sending method provided in the embodiments of this application, the information sending apparatus can send information at an accurate information sending time, the information receiving apparatus can receive the information at an accurate information receiving time, and system communication can be normally performed.

    Variable high throughput control field

    公开(公告)号:US12149484B2

    公开(公告)日:2024-11-19

    申请号:US17583429

    申请日:2022-01-25

    Abstract: The present disclosure provides for methods, systems and apparatus related to Variable High Throughput (HT) Control Field. An aspect of the disclosure provides for a method performed by a station (STA). The method includes sending, to a second STA, a message including a frame, the frame including a variable high throughput (HT) control field. The variable HT further includes a first subfield indicating an N number of control IDs, wherein N is equal to or more than one. The variable HT further includes N additional subfields. Each of the N additional subfield includes: a control identifier (ID) field and a control information field associated with the Control ID field. The method further includes receiving, from the second STA, a response.

    Null data packet announcement (NDPA) frame indication

    公开(公告)号:US12021594B2

    公开(公告)日:2024-06-25

    申请号:US17490414

    申请日:2021-09-30

    CPC classification number: H04B7/0643 H04B7/0626

    Abstract: The present disclosure provides methods and apparatus related to NDPA frame indication. An aspect of the disclosure provides a method. The method includes sending, to one or more stations (STAs), a request for channel state information (CSI). The request includes a null data packet announcement (NDPA) frame including a first field and a second field. The first field indicates presence of the second field, and the second field indicates a variant of the NDPA frame. The method further includes receiving, from the one or more STAs, a CSI feedback response based on the request. In some embodiments, the first field is one of a sounding dialog token field and indicates the presence of the second field via at least two bits. In some embodiments, the first field is a frame control field and indicates the second field via a 4-bit subtype subfield.

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