利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

6 条记录 (耗时 0.013 秒)

    MULTIPLE RECEIVER AGGREGATION (MRA) WITH DIFFERENT DATA RATES FOR IEEE 802.11N
    3.
    发明公开
    MULTIPLE RECEIVER AGGREGATION (MRA) WITH DIFFERENT DATA RATES FOR IEEE 802.11N 审中-公开
    MEHRFACH-EMPFÄNGER-AGGREGATION（MRA）MIT VERSCHIEDENEN DATENRATENFÜRIEEE 802.11N

    公开(公告)号：EP1751922A1

    公开(公告)日：2007-02-14

    申请号：EP05736678.3

    申请日：2005-05-12

    申请人： Koninklijke Philips Electronics N.V.

    发明人： OTAL, Begonya ,  HABETHA, Joerg ,  DALMASES, Francesc ,  LI, Pen C. ,  GHOSH, Monisha

    IPC分类号： H04L12/28 ,  H04L29/06

    CPC分类号： H04W28/06 ,  H04W48/08 ,  H04W52/0216 ,  H04W52/0219 ,  H04W64/00 ,  H04W84/12 ,  Y02D70/142

    摘要： Method, frame definitions ( 300 400 500 700 800 1000 1200 1300 1400 ) and system for transmission of an aggregation of packets which includes a plurality of Medium Access Control (MAC) Protocol Data Units (MPDUs) or PLCP (Physical Layer Convergence Protocol) Protocol Data Units (PPDUs) intended for one or several receivers and transmitted at one or several different Physical (PHY) rates. In some aspects of the invention, a pre-amble, rsp. mid-amble ( 415. i 515. i 715. i 815. i 1015. i 1215. i 1315. i) is transmitted in-between each or between multiples of MPDUs or PPDUs allowing receiver devices to go into sleep mode and wake-up during the aggregate or packet burst. Furthermore, information is transmitted at the beginning of the aggregate/packet burst, which allows devices to deduce the position of MPDUs/PPDUs or multiples of MPDUs/PPDUs in the aggregate. MPDUs or PPDUs are grouped in order to enable efficient sleep times of the receiving devices. The receiving devices decode the information at the beginning of the aggregate/burst, fall into sleep-mode and wake up shortly before their packets have to be received.

    摘要翻译： 方法，帧定义（300 400 500 700 800 1000 1200 1300 1400）以及用于传输分组聚合的系统，包括多个介质访问控制（MAC）协议数据单元（MPDU）或PLCP（物理层汇聚协议）协议 数据单元（PPDU），用于一个或多个接收器，并以一个或多个不同的物理（PHY）速率传输。 在本发明的某些方面， mid-amble（415. i 515. i 715. i 815. i 1015. i 1215. i 1315. i）在每个或多个MPDU或PPDU之间传输，允许接收机设备进入睡眠模式， 在聚合或分组突发期间。 此外，在聚合/分组突发的开始处发送信息，这允许设备在聚合中推断MPDU / PPDU的位置或MPDU / PPDU的倍数。 MPDU或PPDU被分组以便实现接收设备的有效睡眠时间。 接收设备在聚合/突发的开始处对信息进行解码，在其数据包必须被接收之前不久就会陷入睡眠模式并唤醒。

    A METHOD OF DISTRIBUTIVE RESERVATION OF A MEDIUM IN A RADIO COMMUNICATIONS NETWORK
    4.
    发明公开
    A METHOD OF DISTRIBUTIVE RESERVATION OF A MEDIUM IN A RADIO COMMUNICATIONS NETWORK 有权
    方法介质的分布式预留的无线电通信网络

    公开(公告)号：EP1747646A1

    公开(公告)日：2007-01-31

    申请号：EP05733771.9

    申请日：2005-05-04

    申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

    发明人： HIERTZ, Guido ,  OTAL, Begonya ,  HABETHA, Jörg ,  DALMASES, Francesc ,  MAY, Klaus Peter

    IPC分类号： H04L12/28

    CPC分类号： H04W74/02 ,  H04W84/12

    摘要： Method for reservation of a medium in a radio communication network for data transmission between stations (A-E) of the network comprising at least one station (A, B, E) operating according to a first protocol (DRP) and a second station (C, D) operating according to a second protocol (802.11), the method comprises the steps of: providing a contention free period (23) within the first and second protocol; performing the reservation of the medium for the first station (A, B, E) according to the first protocol; and performing the reservation of the medium for the second station (C, D) according to the second protocol, announcing the contention free period for the first and second protocol by use of the same signal (21, 22, 31, 33). In particular a beacon signal is used, wherein the beacon includes a signal (488) which is recognized and accepted by the second stations (C, D). Further information (404) is added into the beacon frame (41) for reserving reservation periods (23) for the first stations (A, B, E).