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    • 1. 发明授权
    • Method for arranging communication between terminals and an access point in a communication system
    • 用于在通信系统中布置终端与接入点之间的通信的方法
    • US07006529B2
    • 2006-02-28
    • US09853396
    • 2001-05-11
    • Ari AlastaloKari LeppänenMika Kasslin
    • Ari AlastaloKari LeppänenMika Kasslin
    • H04J3/16
    • H04W72/0446H04B7/0842H04B7/0854H04W24/10
    • The invention relates to a method for arranging communication between terminals and an access point in a communication system applying data transmission frames. The data frames (FR) comprise timeslots for uplink and downlink communications between the terminals and the access points. The terminals can be allocated one or more timeslots in frames. The spatial signature of at least two terminals is determined, and in at least part of the frames, at least partly simultaneous timeslots are allocated to at least two terminals. Measurements are taken of a signal transmitted by the terminal and used to estimate the timing and frequency offsets and the properties of the communication channel. The simultaneous time slot allocation for terminals is done based on measurement results.
    • 本发明涉及一种在应用数据传输帧的通信系统中在终端与接入点之间进行通信的方法。 数据帧(FR)包括用于终端和接入点之间的上行链路和下行链路通信的时隙。 终端可以分配一个或多个时隙,以帧为单位。 确定至少两个终端的空间签名,并且在至少部分帧中,至少部分同时的时隙被分配给至少两个终端。 测量由终端发送的信号,并用于估计通信信道的定时和频率偏移以及属性。 终端的同步时隙分配是根据测量结果进行的。
    • 4. 发明授权
    • Network discovery in wireless communication systems
    • 无线通信系统中的网络发现
    • US08842605B2
    • 2014-09-23
    • US12635284
    • 2009-12-10
    • Mika KasslinMikko TirronenKari LeppänenSami VirtanenEnrico RantalaMarkku Turunen
    • Mika KasslinMikko TirronenKari LeppänenSami VirtanenEnrico RantalaMarkku Turunen
    • H04W4/00H04J3/06H04W48/16H04W36/00
    • H04W48/16H04W36/0088
    • Apparatuses may stay synchronized with a network via a beacon signal transmitted at a set interval. Communication-related activities may be planned around instances when beacon signals are expected, which may also be known as a target beacon transmission time (TBTT). Scanning opportunities, which are periods of time during which apparatuses may perform passive scanning, may be planned based on an interfere multiple of a network beacon signal interval. Apparatuses may, upon realizing a scanning opportunity, opt either to utilize the scanning opportunity or to participate in network beaconing. In example scenarios where apparatuses opt to utilize scanning opportunities, apparatuses may prepare a network information message and then enter a passive scanning mode. Apparatuses may remain in the passive scanning mode for the duration of the scanning opportunity, reacting when messages are received from devices outside of the network by transmitting the network information message.
    • 设备可以经由以设定的间隔发送的信标信号与网络保持同步。 可以在期望信标信号的情况下围绕通信相关活动,这也可以被称为目标信标传输时间(TBTT)。 可以基于网络信标信号间隔的干扰倍数来规划扫描机会,这些时间段是设备可以执行被动扫描的时间段。 在实现扫描机会时,设备可以选择利用扫描机会或参与网络信标。 在设备选择利用扫描机会的示例场景中,设备可以准备网络信息消息,然后进入被动扫描模式。 在扫描机会的持续时间内,设备可以保持处于被动扫描模式,当通过发送网络信息消息从网络外部的设备接收消息时,反应。
    • 6. 发明授权
    • Power management in wireless communication systems
    • 无线通信系统中的电源管理
    • US08498230B2
    • 2013-07-30
    • US12396789
    • 2009-03-03
    • Mika KasslinMikko TirronenKari LeppänenSami Virtanen
    • Mika KasslinMikko TirronenKari LeppänenSami Virtanen
    • G08C17/00
    • H04W52/0216H04W74/08H04W84/18Y02D70/142Y02D70/22
    • Embodiments of the present invention are directed to the invocation of active states and power conservation states in accordance with the standard or diluted beacon periods defined in beacon frames. Active periods, or “awake windows,” may be defined by additional information (e.g., information elements) that is included in the beacon. Awake windows may establish periods of time during which apparatuses may contend for access to a wireless communication medium. A methodology may further be employed to help determine which apparatuses will have priority when accessing the communication medium. This criteria may be used alone or in combination with the corresponding standard channel access rules (e.g., contention) that govern operation of the particular wireless communication medium in order to control how apparatuses communicate and interact in the wireless network.
    • 本发明的实施例涉及根据在信标帧中定义的标准或稀释的信标周期来调用活动状态和功率节省状态。 可以通过包括在信标中的附加信息(例如,信息元素)定义活动周期或“唤醒窗口”。 唤醒窗口可以建立设备可能竞争访问无线通信介质的时间段。 还可以采用一种方法来帮助确定在访问通信介质时哪些设备将具有优先权。 该标准可以单独使用或与管理特定无线通信介质的操作的相应标准信道访问规则(例如,争用)一起使用,以便控制设备如何在无线网络中通信和交互。