Method and apparatus for protecting a primary service in WLAN system

    公开(公告)号:US09444607B2

    公开(公告)日:2016-09-13

    申请号:US14801799

    申请日:2015-07-16

    Abstract: A method and an apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate are disclosed. For protecting a primary service by a station as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the unlicensed device acquires a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system; generates a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels; updates the WSM when the station acquires information that a primary service signal is detected on a specific channel which is indicated as available in the WSM; and transmits the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel.

    Method and apparatus for scanning existing networks in TVWS

    公开(公告)号:US09426725B2

    公开(公告)日:2016-08-23

    申请号:US14617905

    申请日:2015-02-09

    Abstract: A method and an apparatus for scanning existing networks in TV White Space are disclosed. For scanning existing networks at a station to operate as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the method comprises: receiving a white space map (WSM) comprising information for available channels to be used for the unlicensed device to operate a wireless local area network (WLAN) operation and maximum transmission powers allowed for each of the available channels from an enabling station, wherein the enabling station is a station determining the available channels at its location using its own geographic location identification and a regulatory database access capability; and scanning the existing networks on the available channels identified within the received WSM.

    Method and apparatus for protecting a primary service in WLAN system
    26.
    发明授权
    Method and apparatus for protecting a primary service in WLAN system 有权
    用于保护WLAN系统中主要业务的方法和装置

    公开(公告)号:US09118450B2

    公开(公告)日:2015-08-25

    申请号:US14052603

    申请日:2013-10-11

    Abstract: A method and an apparatus for protecting a primary service as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate are disclosed. For protecting a primary service by a station as an unlicensed device in a regulatory domain where a licensed device and the unlicensed device are permitted to operate, the unlicensed device acquires a list of identified available channels for the operation of the unlicensed device and maximum allowed transmission powers of the identified available channels from a regulatory domain database system; generates a white space map (WSM) comprising the list of identified available channels and the maximum allowed transmission powers of the identified available channels; updates the WSM when the station acquires information that a primary service signal is detected on a specific channel which is indicated as available in the WSM; and transmits the updated WSM to another station such that the another station moves to another channel if the another station is operating on the specific channel.

    Abstract translation: 公开了一种在许可设备和非许可设备被允许操作的监管域中保护作为未许可设备的主服务的方法和设备。 为了保护作为许可设备和未经授权的设备被允许操作的管理域中的未许可设备的站的主服务,未经许可的设备获取用于非许可设备的操作的标识的可用信道的列表和最大允许传输 来自监管域数据库系统的已识别可用频道的功能; 生成包括识别的可用信道的列表和所识别的可用信道的最大允许发送功率的白色空间映射(WSM); 当站获取在WSM中可用的特定信道上检测到主服务信号的信息时,更新WSM; 并将更新的WSM发送到另一站,使得如果另一站在特定信道上操作,则另一站移动到另一个信道。

    Method and apparatus of transmitting PLCP header for sub 1 GHz communication
    28.
    发明授权
    Method and apparatus of transmitting PLCP header for sub 1 GHz communication 有权
    发送用于子1 GHz通信的PLCP报头的方法和装置

    公开(公告)号:US08948284B2

    公开(公告)日:2015-02-03

    申请号:US13670324

    申请日:2012-11-06

    CPC classification number: H04L27/2613

    Abstract: Method and apparatus of transmitting PLCP header for sub 1 GHz communication is disclosed. A method of transmitting a physical layer convergence protocol (PLCP) header may comprise generating a short training field (STF) sequence over 1 orthogonal frequency division multiplexing (OFDM) symbol, transforming the STF sequence to repeated waveform patterns in time domain and transmitting the PLCP header comprising the STF sequence, wherein the STF sequence may be a sequence transformed to repeated waveform patterns in time domain by inverse discrete Fourier transform (IDFT).

    Abstract translation: 公开了发送用于1GHz通信的PLCP报头的方法和装置。 传输物理层汇聚协议(PLCP)报头的方法可以包括:通过1个正交频分复用(OFDM)符号生成短训练场(STF)序列,将STF序列变换成时域中的重复波形模式,并发送PLCP 包括STF序列的标题,其中STF序列可以是通过反离散傅立叶变换(IDFT)在时域中变换成重复波形图案的序列。

    Method and Apparatus of Transmit Power Control in Wireless Local Area Network
    30.
    发明申请
    Method and Apparatus of Transmit Power Control in Wireless Local Area Network 审中-公开
    无线局域网中发射功率控制的方法与装置

    公开(公告)号:US20130303229A1

    公开(公告)日:2013-11-14

    申请号:US13940324

    申请日:2013-07-12

    Abstract: A method and apparatus of controlling a transmit power in a wireless local area network is provided. A wireless device operated in a TV White Space transmits a white space map indicating a list of available channels, and transmits an extended power constraint indicating a plurality of transmission channels and a plurality of maximum transmit powers, wherein the plurality of transmission channels are selected among the list of available channels and each of the plurality of maximum transmit powers corresponds to a maximum transmit power for each of the plurality of transmission channels. Interference can be mitigated between wireless devices operated in the TV White Space.

    Abstract translation: 提供了一种在无线局域网中控制发射功率的方法和装置。 在TV白空间中操作的无线设备发送指示可用信道列表的白空间映射,并发送指示多个传输信道和多个最大发射功率的扩展功率约束,其中,多个传输信道选自 可用信道的列表和多个最大发射功率中的每一个对应于多个传输信道中的每一个的最大发射功率。 可以在电视白色空间中操作的无线设备之间减轻干扰。

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