中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

284 records (took 0.032 seconds)

    METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM
    26.
    发明申请
    METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM 审中-公开
    在WLAN系统中提供多种模式的有效操作的方法和系统

    公开(公告)号：WO2007081683A3

    公开(公告)日：2008-02-07

    申请号：PCT/US2007000027

    申请日：2007-01-03

    Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  SAMMOUR MOHAMMED ,  LEVY JOSEPH S

    Inventor： GRANDHI SUDHEER A ,  SAMMOUR MOHAMMED ,  LEVY JOSEPH S

    IPC: H04L12/28

    CPC classification number: H04W88/10 ,  H04W48/10 ,  H04W74/0816 ,  H04W88/06 ,  Y02D70/14

    Abstract: A method and system applies MAC transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which also applies to a single mode as a trivial case. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions.

    Abstract translation: 一种方法和系统在WLAN系统中对多模式操作应用MAC传输机会（TXOP）保护。 特别地，MAC机制被定义为支持多模式CTS帧，以及由AP发送的多模式CF-结束帧，每个帧的格式适合于对应的模式，其也适用于单个模式作为平凡的情况。 当没有进一步的传输数据可用时，MAC机制允许截断TXOP持续时间以释放TXOP的未使用部分。 对于受保护的AP传输和STA传输都可以释放未使用的受保护的TXOP。

    METHOD AND SYSTEM FOR REDUCING POWER CONSUMPTION OF A WIRELESS TRANSMIT/RECEIVE UNIT
    27.
    发明申请
    METHOD AND SYSTEM FOR REDUCING POWER CONSUMPTION OF A WIRELESS TRANSMIT/RECEIVE UNIT 审中-公开
    用于减少无线发射/接收单元功耗的方法和系统

    公开(公告)号：WO2007013934A3

    公开(公告)日：2007-12-13

    申请号：PCT/US2006028080

    申请日：2006-07-19

    Applicant: INTERDIGITAL TECH CORP ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

    Inventor： SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

    IPC: H04B1/16

    CPC classification number: H04W52/0235 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

    Abstract: A method and system for reducing power consumption of a wireless transmit/receive unit (WTRU), (i.e., mobile station), are disclosed. A first WTRU measures a predetermined parameter and determines whether the measured predetermined parameter exceeds a threshold. If so, the first WTRU sends a sleep frame to a second WTRU. The sleep frame indicates sleep duration. The second WTRU receives the sleep frame and enters a sleep state for the sleep duration. The predetermined parameter may be an inactivity time of wireless medium. The second WTRU may or may not be allowed to send transmission to the first WTRU during the sleep duration. The sleep frame may be a control frame, a management frame, a data frame or an action frame. One of a multiple receiver aggregate (MRA) multi-poll frame, a power saving aggregation descriptor frame, or a power save multi-poll frame may be used as the sleep frame.

    Abstract translation: 公开了一种用于降低无线发射/接收单元（WTRU）（即移动站）的功率消耗的方法和系统。 第一WTRU测量预定参数并确定所测量的预定参数是否超过阈值。 如果是，则第一WTRU向第二WTRU发送睡眠帧。 睡眠帧指示睡眠持续时间。 第二WTRU接收睡眠帧并进入睡眠状态以进行睡眠持续时间。 该预定参数可以是无线介质的不活动时间。 第二WTRU可以或可以不允许在睡眠持续时间期间向第一WTRU发送传输。 睡眠帧可以是控制帧，管理帧，数据帧或动作帧。 可以使用多个接收机聚合（MRA）多轮询帧，功率节省聚合描述符帧或省电多轮询帧中的一个作为睡眠帧。

    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS
    28.
    发明申请
    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS 审中-公开
    用于保护高吞吐量站的方法和设备

    公开(公告)号：WO2007033056A3

    公开(公告)日：2007-06-28

    申请号：PCT/US2006035254

    申请日：2006-09-11

    Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  GRANDHI SUDHEER A

    Inventor： CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  GRANDHI SUDHEER A

    IPC: H04L12/28 ,  H04W74/08 ,  H04L12/56 ,  H04W48/08 ,  H04W80/02

    CPC classification number: H04L1/0079 ,  H04W16/14 ,  H04W74/08 ,  H04W92/02

    Abstract: A method and apparatus for protecting high throughput (HT) stations (STAs) are disclosed. In one embodiment, a physical layer (PHY) legacy preamble transmitted by one STA is decoded by another STA that does not use a legacy preamble. In another embodiment, one STA is identified by another STA by using bits in the preamble of a packet to indicate which PHY type will be used in the remaining portion of the packet. In yet another embodiment, one STA sends ready-to-send (RTS)/clear-to-send (CTS) or CTS-to-self messages for reserving a medium in the presence of another STA of a different type than the one STA. In yet another embodiment, an access point (AP) transmits a beacon or an association message including a capability information element (IE) that indicates operation or support for a legacy preamble, HT STA preambles and a medium access control (MAC) packet transmission with HT protection mechanisms.

    Abstract translation: 公开了一种用于保护高吞吐量（HT）站（STA）的方法和设备。 在一个实施例中，由一个STA发送的物理层（PHY）传统前导码由不使用传统前导码的另一STA解码。 在另一个实施例中，一个STA由另一STA通过使用分组的前导码中的比特来标识，以指示将在分组的剩余部分中使用哪种PHY类型。 在又一个实施例中，一个STA在不同于一个STA的另一类型的另一STA的存在下发送准备发送（RTS）/清除发送（CTS）或CTS到自身消息以用于保留介质 。 在又一个实施例中，接入点（AP）将包括指示对传统前导码，HT STA前导码和介质访问控制（MAC）分组传输的操作或支持的能力信息元素（IE）的信标或关联消息与 HT保护机制。

Patent Agency Ranking