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    Method and system for eliminating interference caused by hidden nodes
    1.
    发明申请
    Method and system for eliminating interference caused by hidden nodes 失效
    消除隐藏节点干扰的方法和系统

    公开(公告)号：US20060165036A1

    公开(公告)日：2006-07-27

    申请号：US11236895

    申请日：2005-09-28

    申请人： Arty Chandra ,  Sudheer Grandhi ,  Eldad Zeira ,  Joseph Levy ,  Sintayehu Dehnie ,  Mohammed Sammour

    发明人： Arty Chandra ,  Sudheer Grandhi ,  Eldad Zeira ,  Joseph Levy ,  Sintayehu Dehnie ,  Mohammed Sammour

    IPC分类号： H04Q7/00 ,  H04L12/56

    CPC分类号： H04W74/08 ,  H04L47/26 ,  H04L47/30 ,  H04W74/002 ,  Y02D70/142 ,  Y02D70/22

    摘要： A method and system for eliminating interference caused by hidden nodes is disclosed. An initiator control message is defined for an initiator, (typically a wireless station (STA)), in order to begin an aggregate frame exchange with at least one responder. The initiator control message includes information on the queue sizes at the initiator. A responder, (typically an access point (AP)), sets up the required protection for the transmission of data by the initiator based on information on the queue sizes indicated in a field of the initiator control message using a responder control message. Other STAs that receive the responder control message set parameters for a wireless medium access accordingly. In another embodiment, multiple receiver aggregate multi-poll (MMP) and power save aggregation descriptor (PSAD) control frames are configured for transmission by a non-AP STA to provide enhanced scheduling and mitigate hidden node problems.

    摘要翻译： 公开了一种消除隐藏节点干扰的方法和系统。 为启动器（通常为无线站（STA））定义发起者控制消息，以开始与至少一个响应者的聚合帧交换。 启动器控制消息包括关于发起者的队列大小的信息。 响应者（通常为接入点（AP）），基于使用响应者控制消息的发起者控制消息的字段中指示的队列大小的信息，建立由发起者传输数据所需的保护。 接收响应者控制消息的其他STA相应地为无线介质访问参数。 在另一个实施例中，多个接收机集合多轮询（MMP）和功率节省聚合描述符（PSAD）控制帧被配置为由非AP STA传输，以提供增强的调度并减轻隐藏的节点问题。

    Method and system for improving responsiveness in exchanging frames in a wireless local area network
    2.
    发明申请
    Method and system for improving responsiveness in exchanging frames in a wireless local area network 有权
    一种提高无线局域网交换帧响应性的方法和系统

    公开(公告)号：US20060248429A1

    公开(公告)日：2006-11-02

    申请号：US11393303

    申请日：2006-03-29

    申请人： Sudheer Grandhi ,  Arty Chandra ,  Eldad Zeira ,  Mohammed Sammour

    发明人： Sudheer Grandhi ,  Arty Chandra ,  Eldad Zeira ,  Mohammed Sammour

    IPC分类号： H04L1/18

    CPC分类号： H04W28/0268 ,  H04L1/1664 ,  H04L1/1671 ,  H04L1/1685 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/03343 ,  H04L49/65 ,  H04L2025/03426 ,  H04L2025/03802 ,  H04W24/08 ,  H04W84/12

    摘要： A method and system for improving responsiveness in exchanging management and control frames in a wireless local area network are disclosed. An initiator sends a frame (action, management, control or data frame) to a responder. Upon correctly receiving the frame, the responder sends a response frame to the initiator instead of directly sending an acknowledgement (ACK) packet. The responder preferably accesses the wireless medium to send the response frame in a short inter-frame spacing (SIFS). With this scheme, a long delay associated with having to contend for the wireless medium to send the response frame is avoided and therefore, the responsiveness and timeliness of the feedback mechanism is significantly enhanced. The response frame may be piggybacked on or aggregated with another packet.

    摘要翻译： 公开了一种在无线局域网中提高交换管理和控制帧响应性的方法和系统。 发起者向响应者发送帧（动作，管理，控制或数据帧）。 在正确接收到帧时，响应者向发起者发送响应帧，而​​不是直接发送确认（ACK）分组。 响应者优选地访问无线介质以以短的帧间间隔（SIFS）发送响应帧。 利用这种方案，避免了与必须争取无线介质发送响应帧相关联的长延迟，因此反馈机制的响应性和及时性得到显着增强。 响应帧可以搭载在另一个分组上或与另一分组聚合。

    Wireless communication method and system for enhancing the capability of WLAN control frames
    4.
    发明申请
    Wireless communication method and system for enhancing the capability of WLAN control frames 审中-公开
    无线通信方法和系统，用于增强WLAN控制帧的能力

    公开(公告)号：US20060268886A1

    公开(公告)日：2006-11-30

    申请号：US11413328

    申请日：2006-04-28

    申请人： Mohammed Sammour ,  Arty Chandra ,  Sudheer Grandhi

    发明人： Mohammed Sammour ,  Arty Chandra ,  Sudheer Grandhi

    IPC分类号： H04L12/56

    CPC分类号： H04W28/18 ,  H04W74/0816 ,  H04W76/10 ,  H04W76/20 ,  H04W84/12

    摘要： A method and system for enhancing the capabilities of wireless local area network (WLAN) control frames in general, and particularly block acknowledgement (ACK) frames, such as block ACK request (BAR) frames and block ACK response (BA) frames are disclosed. Furthermore, the functionalities these frames provide are extended by indicating the types of such functionalities within the BAR or BA frame formats. This enables the BAR or BA frames to be used more flexibly and on an as-needed basis, without the restriction of simultaneously providing all functionalities. The BAR/BA setup and negotiation procedure is also modified to provide more flexibility. In another embodiment, request to send (RTS) frames or clear to send (CTS) frames are used for the purpose of granting reverse direction traffic, and may be aggregated with data frames.

    摘要翻译： 公开了一种用于增强无线局域网（WLAN）控制帧的能力的方法和系统，特别是块确认（ACK）帧，例如块ACK请求（BAR）帧和块ACK响应（BA）帧。 此外，这些帧提供的功能通过指示BAR或BA帧格式内的这些功能的类型来扩展。 这使得能够更灵活地使用BAR或BA帧，并且在不需要的同时提供所有功能的限制下。 BAR / BA设置和协商过程也被修改，以提供更多的灵活性。 在另一个实施例中，为了授予反向业务的目的，使用发送（RTS）帧或清除发送（CTS）帧的请求，并且可以与数据帧进行聚合。

    Peer-to-peer wireless communication system
    5.
    发明申请
    Peer-to-peer wireless communication system 有权
    对等无线通信系统

    公开(公告)号：US20060165035A1

    公开(公告)日：2006-07-27

    申请号：US11234792

    申请日：2005-09-23

    申请人： Arty Chandra ,  Joseph Levy ,  Sudheer Grandhi ,  Eldad Zeira

    发明人： Arty Chandra ,  Joseph Levy ,  Sudheer Grandhi ,  Eldad Zeira

    IPC分类号： H04Q7/00 ,  H04L12/56

    CPC分类号： H04W28/16 ,  H04W76/14 ,  H04W84/18

    摘要： A peer-to-peer communication system using a direct link setup (DLS) is disclosed. A mobile station (STA) establishes a direct communication link with another STA by sending a message requesting a DLS to an access point (AP), (i.e., a centralized controller). The AP may accept or reject the DLS request based on channel measurements. If the DLS request is accepted, the DLS is established such that the STAs may directly communicate with each other. An established DLS connection may be torn down by the AP sending a message including a DLS teardown request to one of the STAs, or based on channel measurements. The system may be an Ad hoc network comprising a plurality of STAs without an AP where each STA maintains a database of one-hop and two-hop STAs, and establishes a direct link to other STAs after informing neighboring STAs of an intention to establish a direct communication link.

    摘要翻译： 公开了一种使用直接链路建立（DLS）的对等通信系统。 移动站（STA）通过向接入点（AP）（即集中式控制器）发送请求DLS的消息来建立与另一个STA的直接通信链路。 AP可以基于信道测量接受或拒绝DLS请求。 如果DLS请求被接受，则建立DLS使得STA可以直接相互通信。 AP可以将建立的DLS连接拆除，其中包括向一个STA发送包括DLS拆卸请求的消息，或者基于信道测量。 该系统可以是包括多个没有AP的STA的Ad hoc网络，其中每个STA维护一跳和两跳STA的数据库，并且在通知相邻STA之后建立与其他STA的直接链路，以建立 直接沟通链接

    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS
    7.
    发明申请
    METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS 有权
    保护高速公路的方法和装置

    公开(公告)号：US20070076752A1

    公开(公告)日：2007-04-05

    申请号：US11531006

    申请日：2006-09-12

    申请人： Eldad Zeira ,  Stephen Terry ,  Joseph Levy ,  Sudheer Grandhi ,  Arty Chandra

    发明人： Eldad Zeira ,  Stephen Terry ,  Joseph Levy ,  Sudheer Grandhi ,  Arty Chandra

    IPC分类号： H04J3/16

    CPC分类号： H04L1/0079 ,  H04W16/14 ,  H04W74/08 ,  H04W92/02

    摘要： 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.

    摘要翻译： 公开了一种用于保护高吞吐量（HT）站（STA）的方法和装置。 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同步码的另一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，以指示在分组的剩余部分中将使用哪种PHY类型。 在另一个实施例中，一个STA发送即时发送（RTS）/清除发送（CTS）或CTS到自身消息，用于在存在与一个STA不同类型的另一STA的情况下保留介质 。 在另一个实施例中，接入点（AP）发送信标或关联消息，该信标或关联消息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） HT保护机制。

    SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR TRANSMISSION OF MBMS DATA
    10.
    发明申请
    SENDING AND REDUCING UPLINK FEEDBACK SIGNALING FOR TRANSMISSION OF MBMS DATA 有权
    发送和减少用于传输MBMS数据的上行反馈信号

    公开(公告)号：US20080045228A1

    公开(公告)日：2008-02-21

    申请号：US11840755

    申请日：2007-08-17

    申请人： Guodong Zhang ,  Christopher Cave ,  Guang Lu ,  Paul Marinier ,  Arty Chandra ,  Sudheer Grandhi

    发明人： Guodong Zhang ,  Christopher Cave ,  Guang Lu ,  Paul Marinier ,  Arty Chandra ,  Sudheer Grandhi

    IPC分类号： H04Q7/20

    CPC分类号： H04W72/0406 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0029 ,  H04L1/1607 ,  H04L1/1854 ,  H04L1/1861 ,  H04L12/189 ,  H04L2001/0093 ,  H04W72/005 ,  H04W74/0866

    摘要： The present invention is related to a method and system for sending and reducing uplink feedback signaling by a wireless transmit/receive unit (WTRU) related to transmission of multimedia broadcast multicast service (MBMS) data over a high speed downlink packet access (HSDPA) channel. A Node B may pre-allocate a time/frequency region or a common channelization code for the feedback. A triggering criterion for reporting a channel quality indicator (CQI) is set and WTRUs send a CQI to a Node B only if the triggering criterion is satisfied. The triggering criterion may be a current operating CQI value at the Node B, or based on erroneous transport block reception statistics, or a predetermined time period. A feedback reduction method related to ACK/NACK includes the WTRU sending an indication of an average number of transmissions needed to successfully decode the data instead of sending an ACK/NACK for every transmission interval.

    摘要翻译： 本发明涉及一种用于通过高速下行链路分组接入（HSDPA）信道传输多媒体广播多播服务（MBMS）数据的无线发射/接收单元（WTRU）发送和减少上行链路反馈信令的方法和系统。 。 节点B可以预先分配用于反馈的时间/频率区域或公共信道化码。 设置用于报告信道质量指示符（CQI）的触发标准，并且仅当满足触发标准时，WTRU才向节点B发送CQI。 触发标准可以是节点B处的当前操作CQI值，或者基于错误的传输块接收统计信息或预定时间段。 与ACK / NACK相关的反馈减少方法包括WTRU发送成功解码数据所需的平均传输数量的指示，而不是为每个传输间隔发送ACK / NACK。