Abstract:
PROBLEM TO BE SOLVED: To enable two kinds of devices to operate in a network that includes a new device capable of using wideband channels and a legacy device capable of using only narrowband channels.SOLUTION: A network controller may define which devices use which narrowband channels for concurrently transmitting uplink acknowledgements. Further, the network controller may schedule the devices to respond in groups based on the received signal strength of their transmissions in the network controller.
Abstract:
PROBLEM TO BE SOLVED: To accurately detect a channel which is free when devices carry out transmission at the same time with a multi-channel.SOLUTION: In a wireless communication network, it is controlled so that subsequent multi-channel communication exchange between two devices can be performed only by a channel detected to be free by both devices by using a multi-channel transmission request (MRTS: Multi-channel-Request-To-Send) and multi-channel ready for sending (MCTS: Multi-channel-Clear-To-Send).
Abstract:
PROBLEM TO BE SOLVED: To provide a method of allowing a device to simultaneously use multiple 20-MHz channels for communicating with another network device.SOLUTION: A first wireless communications device receives, through at least one receiver, a first communication from a second wireless communications device, the first communication comprising information defining allocated channels the first wireless communications device may use for subsequent transmissions; selects particular channels of the allocated channels for a first transmission; indicates the selected channels in a bitmap; and transmits, through at least one transmitter, the bitmap in the first transmission.
Abstract:
PROBLEM TO BE SOLVED: To provide bandwidth and channel notification for wide-channel wireless communication. SOLUTION: In a wireless communications network in which a device may simultaneously use multiple 20 MHz channels for communicating with another network device, this invention provides a way for a network controller to notify a mobile device of a combination of channels available for the mobile device in the subsequent communication relating to the mobile device, and may also provide a way to specify which of the channels are actually being used in the subsequent communications. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a communication method and wireless equipment for avoiding the problem of a hidden node by using transmission request/transmission possibility (RTS/CTS) exchange in a network using multichannel.SOLUTION: In a wireless communication network 200, a request device transmits the multi-channel transmission request (MRTS) of a channel list "A" detected to be free (230), and a response device compares the received list "A" with a channel list "B" detected to be free of the response device itself, and transmits multi-channel transmission possibility (MCTS) with a free channel list "C" included in the both lists (255) so that following multi-channel communication exchange between the two devices can be performed only by the channel detected to be free by the both devices.
Abstract:
PROBLEM TO BE SOLVED: To provide techniques for efficient acknowledgement for UL MU MIMO and UL OFDMA in wireless networks.SOLUTION: There is provided a method of supporting acknowledgement transmissions for Uplink (UL) Multi-user Multiple Input Multiple Output (MU MIMO) or Uplink (UL) Orthogonal Frequency Division Multiple Access (OFDMA) in wireless networks, comprising, enabling an AP operable in the wireless network to send back acknowledgements to different wireless stations (STAs) in communication with the AP either sequentially or simultaneously by defining a new block acknowledgements (BAs) type for multiple STAs.
Abstract translation:要解决的问题:提供用于无线网络中UL MU MIMO和UL OFDMA的有效确认的技术。解决方案:提供了一种支持上行链路(UL)多用户多输入多输出(MU MIMO)或 在无线网络中的上行链路(UL)正交频分多址(OFDMA),包括:使能够在无线网络中操作的AP能够顺序或同时地通过定义新的信令向与AP通信的不同无线站(STA)发送确认 多个STA的块确认(BAs)类型。
Abstract:
técnicas para sondagem mimo de múltiplos usuários em redes sem fio. uma modalidade da presente invenção provê um equipamento, compreendendo um transceptor operável como um ponto de acesso e capax de se comunicar em uma rede sem fio, o ap é adaptado para executar uma transmissão de múltiplas entradas e múltiplas saídas de múltiplos usuários de downlink (dl mu-mimo) e é adaptado adicionalmente para transmitir um pacote de dados nulo (ndp) para sondar canais entre estações (stas) sem fio de destino pretendidas, e em após uma transmissão de dl mu-mimo do ndp, o ap consulta cada uma das stas por informação de extado de canal.
Abstract:
Systeme und Verfahren zum Durchführen kollaborativer Sitzungen zwischen Mobilgeräten können die Möglichkeit bieten, eine Zeitverzögerung zu bestimmen, die mit einem Satz teilnehmender Mobilgeräte verbunden ist, und eine Befehlsausführungszeit mindestens teilweise auf der Grundlage einer Uhr eines Verwaltungsgerätes und der Zeitverzögerung zu bestimmen. Eine oder mehrere Steuerungsmeldungen können zu den teilnehmenden Mobilgeräten übertragen werden, wobei die Steuerungsmeldungen den Befehl und die Befehlsausführungszeit enthalten. Nach dem Empfang einer Steuerungsmeldung kann jedes teilnehmende Mobilgerät eine lokale Ausführungszeit mindestens teilweise auf der Grundlage der Befehlsausführungszeit und eines Versatzes der Uhr des Verwaltungsgerätes relativ zu einer lokalen Uhr bestimmen. Die Ausführung des Befehls kann darum in dem gesamten Satz teilnehmender Mobilgeräte koordiniert werden.
Abstract:
An embodiment of the present invention provides an apparatus including a transceiver operable for broadcast/multicast traffic delivery in a wireless network, wherein the transceiver is adapted to identify local broadcast traffic and limit a broadcast domain to a basic service set (BSS) servicing the local broadcast traffic.