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。

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。

公开(公告)号：US20060078001A1

公开(公告)日：2006-04-13

申请号：US11237233

申请日：2005-09-28

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

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

IPC分类号： H04L12/56

CPC分类号： H04L12/46 ,  H04W28/065 ,  H04W52/0216 ,  H04W74/08 ,  Y02D70/142

摘要： An aggregated medium access control (MAC) frame for use with multiple transmission rates in a wireless communication system includes an aggregated header; at least one MAC protocol data unit (MPDU), the MPDUs being grouped together in the frame by transmission rate of the MPDU; and a separating sequence between each rate group. The aggregated header includes a count field to indicate a number of rates that have been aggregated in the frame and an information group for each rate that has been aggregated in the frame.

摘要翻译： 在无线通信系统中与多个传输速率一起使用的聚合介质访问控制（MAC）帧包括聚合报头; 至少一个MAC协议数据单元（MPDU），MPDU通过MPDU的传输速率在帧中被分组在一起; 和每个速率组之间的分离序列。 聚合报头包括一个计数字段，用于指示已经在该帧中聚合的速率的数量，以及针对已在帧中聚合的每个速率的信息组。

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

公开(公告)号：US20060050742A1

公开(公告)日：2006-03-09

申请号：US11199446

申请日：2005-08-08

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

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

IPC分类号： H04J3/07

CPC分类号： H04B7/2612 ,  H04B7/02 ,  H04B7/0413 ,  H04W48/10 ,  H04W72/005 ,  H04W72/0446 ,  H04W74/08 ,  H04W74/0816 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/442 ,  Y02D70/449

摘要： A method and system for controlling access to a medium in a wireless communication system. A superframe structure is defined in time domain to include a contention free period (CFP) which has at least one scheduled resource allocation (SRA), at least one management SRA (MSRA) and a contention period. An extended beacon (EB) including information about the SRA and MSRA is transmitted for. The MAC architecture reduces station battery consumption, supports higher throughput for non-real time (NRT) traffic and is more efficient for real time (RT) traffic while maintaining full compatibility.

摘要翻译： 一种在无线通信系统中控制对介质的访问的方法和系统。 在时域中定义超帧结构以包括具有至少一个调度资源分配（SRA），至少一个管理SRA（MSRA）和争用周期的无竞争周期（CFP）。 发送包括关于SRA和MSRA的信息的扩展信标（EB）。 MAC架构降低了站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且在保持完全兼容性的同时对于实时（RT）流量更有效。

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。

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。

公开(公告)号：US20060252443A1

公开(公告)日：2006-11-09

申请号：US11406877

申请日：2006-04-19

申请人： Mohammed Sammour ,  Sudheer Grandhi ,  Arty Chandra

发明人： Mohammed Sammour ,  Sudheer Grandhi ,  Arty Chandra

IPC分类号： H04B7/00 ,  H04Q7/20

CPC分类号： H04W52/0209 ,  H04W4/08 ,  H04W8/186 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/08 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22

摘要： A method for addressing groups of stations in a wireless communication system begins by assigning the stations in the system into a number of groups. A group identifier is signaled to each station and the group identifier is indicated in a frame for each group that has data in the frame. The addressing method can be applied to power savings for the station, wherein the station enters a power saving mode if the group identifier for the station is not present in the frame.

公开(公告)号：US20070258384A1

公开(公告)日：2007-11-08

申请号：US11680892

申请日：2007-03-01

申请人： Mohammed Sammour ,  Marian Rudolf ,  Sudheer Grandhi ,  Joseph Levy

发明人： Mohammed Sammour ,  Marian Rudolf ,  Sudheer Grandhi ,  Joseph Levy

IPC分类号： H04J3/14

CPC分类号： H04W36/24 ,  H04W28/22 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/23

摘要： A wireless local area network (WLAN) includes at least one high throughput-enabled access point (AP) and at least one high throughput-enabled station (STA). A STA and a target AP communicate high throughput-related information and the STA performs a basic service set (BSS) transition to the target AP based on the high throughput-related information. The high throughput-related information may be included in an IEEE 802.11r, 802.11k, or 802.11v signaling message. The STA may send measurement reports for an extended range and a normal range of an AP separately, or may send a combined measurement report for an extended range and a normal range of an AP. A network management entity may obtain current status information of the STA and the AP regarding high throughput capabilities, features and parameters and selectively enable and disable at least one of the high throughput capabilities, features and parameters of the STA and the AP.

摘要翻译： 无线局域网（WLAN）包括至少一个高吞吐量使能接入点（AP）和至少一个高吞吐量使能站（STA）。 STA和目标AP通信高吞吐量相关信息，并且STA基于高吞吐量相关信息执行到目标AP的基本服务集（BSS）转换。 高吞吐量相关信息可以包括在IEEE 802.11r，802.11k或802.11v信令消息中。 STA可以单独发送AP的扩展范围和正常范围的测量报告，或者可以发送AP的扩展范围和正常范围的组合测量报告。 网络管理实体可以获得关于高吞吐量能力，特征和参数的STA和AP的当前状态信息，并且选择性地启用和禁用STA和AP的高吞吐能力，特征和参数中的至少一个。

公开(公告)号：US20080059859A1

公开(公告)日：2008-03-06

申请号：US11841156

申请日：2007-08-20

申请人： Paul Marinier ,  Eldad Zeira ,  Alexander Reznik ,  Sudheer Grandhi ,  Stephen Terry ,  Christopher Cave

发明人： Paul Marinier ,  Eldad Zeira ,  Alexander Reznik ,  Sudheer Grandhi ,  Stephen Terry ,  Christopher Cave

IPC分类号： H04L1/18

CPC分类号： H04L1/1867 ,  H04L1/1812 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1854 ,  H04W72/04

摘要： In a wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one Node-B (NB), an activation or deactivation state is determined for each of a plurality of HARQ processes. A signal that includes the activation or deactivation state for each of the HARQ processes is transmitted to the WTRU. In response to receiving the signal, the WTRU activates or deactivates a particular HARQ process in accordance with the activation or deactivation state for each of the HARQ processes contained in the received signal.

摘要翻译： 在包括至少一个无线发射/接收单元（WTRU）和至少一个节点B（NB）的无线通信系统中，为多个HARQ过程中的每一个确定激活或去激活状态。 将包括每个HARQ进程的激活或去激活状态的信号发送到WTRU。 响应于接收到该信号，WTRU根据包含在接收信号中的每个HARQ过程的激活或去激活状态来激活或去激活特定的HARQ过程。