公开(公告)号：WO2006041673A3

公开(公告)日：2007-01-25

申请号：PCT/US2005034518

申请日：2005-09-27

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  GRANDHI SUDHEER A ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  ZEIRA ELDAD

Inventor： GRANDHI SUDHEER A ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  ZEIRA ELDAD

IPC: H04L12/28

CPC classification number: H04L12/46 ,  H04W28/065 ,  H04W52/0216 ,  H04W74/08 ,  Y02D70/00 ,  Y02D70/142

Abstract: An aggregated medium access control (MAC) frame (300-Fig.3) 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 fram by transmission rate of the MPDU; and a separating sequence between each rate group. The aggregated header (302) includes a coun field (312) to indicate a number of rates that have been aggregated in the frame and an information group (326) for each rate that has been aggregated in the frame.

Abstract translation: 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（300-图3）包括聚合报头; 至少一个MAC协议数据单元（MPDU），MPDU通过MPDU的传输速率被组合在帧中; 和每个速率组之间的分离序列。 聚合报头（302）包括用于指示已经在帧中聚合的速率的数量的域（312）和针对已在帧中聚合的每个速率的信息组（326）。

公开(公告)号：WO2007084281A3

公开(公告)日：2007-09-13

申请号：PCT/US2007000468

申请日：2007-01-08

Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S

Inventor： GRANDHI SUDHEER A ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S

IPC: H04L12/28 ,  H04L12/56 ,  H04W48/12

CPC classification number: H04W48/12

Abstract: A method and apparatus for distributing beacon information includes a first WTRU modifying a physical layer convergence protocol (PLCP) header in a physical protocol data unit (PHY PDU) frame to include beacon information. The first WTRU transmits the modified PLCP header to a second WTRU. The second WTRU receives the modified PLCP header and extracts beacon information from the modified PLCP header. The second WTRU associates with the first WTRU.

Abstract translation: 用于分发信标信息的方法和设备包括第一WTRU，其修改物理协议数据单元（PHY PDU）帧中的物理层会聚协议（PLCP）报头以包括信标信息。 第一WTRU将修改的PLCP报头发送到第二WTRU。 第二WTRU接收修改的PLCP报头并从修改的PLCP报头中提取信标信息。 第二WTRU与第一WTRU相关联。

公开(公告)号：WO2007127312A3

公开(公告)日：2007-12-27

申请号：PCT/US2007010149

申请日：2007-04-24

Applicant: INTERDIGITAL TECH CORP ,  RUDOLF MARIAN ,  ZUNIGA JUAN CARLOS ,  LEVY JOSEPH S ,  GRANDHI SUDHEER A

Inventor： RUDOLF MARIAN ,  ZUNIGA JUAN CARLOS ,  LEVY JOSEPH S ,  GRANDHI SUDHEER A

IPC: H04L12/24

CPC classification number: H04L5/0058 ,  H04L12/12 ,  H04L41/0213 ,  H04L41/0806 ,  H04L41/082 ,  H04L41/0843 ,  H04L41/0846 ,  H04L41/0856 ,  H04L41/12 ,  H04L43/0817 ,  H04L47/10 ,  H04L63/10 ,  H04W12/08 ,  H04W48/16 ,  H04W84/12 ,  H04W84/18

Abstract: High throughput channel operation in a mesh wireless local area network (WLAN) is disclosed. A mesh network comprises a plurality of mesh points and a network management entity (NME). The NME is configured to retrieve capability and configuration data from the mesh points. The NME configures at least one mesh point with respect to IEEE 802.11n channelization and legacy protection mode based on the capability and configuration data.

Abstract translation: 公开了一种网状无线局域网（WLAN）中的高吞吐量信道操作。 网状网络包括多个网格点和网络管理实体（NME）。 NME被配置为从网格点检索能力和配置数据。 基于能力和配置数据，NME根据IEEE 802.11n信道化和传统保护模式配置至少一个网格点。

公开(公告)号：WO2006081091A3

公开(公告)日：2007-10-25

申请号：PCT/US2006001533

申请日：2006-01-17

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD ,  LEVY JOSEPH S ,  DEHNIE SINTAYEHU ,  SAMMOUR MOHAMMED

Inventor： CHANDRA ARTY ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD ,  LEVY JOSEPH S ,  DEHNIE SINTAYEHU ,  SAMMOUR MOHAMMED

IPC: H04W74/08

CPC classification number: H04W74/08 ,  H04L47/26 ,  H04L47/30 ,  H04W74/002 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: 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.

Abstract translation: 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来设置由发起者发送数据所需的保护。 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：WO2006020520A3

公开(公告)日：2006-07-06

申请号：PCT/US2005027956

申请日：2005-08-05

Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  ZEIRA ELDAD

Inventor： GRANDHI SUDHEER A ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  SHAHEEN KAMEL M ,  TERRY STEPHEN E ,  ZEIRA ELDAD

IPC: H04L12/28 ,  H04W74/04

CPC classification number: H04W48/10 ,  H04B7/02 ,  H04B7/0413 ,  H04B7/2612 ,  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

Abstract: 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) (3712), at least one management SRA (MSRA) (3718) and a contention period. An extended beacon (EB) (3746) including information about the SRA and MSRA is transmitted for. The 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.

Abstract translation: 一种在无线通信系统中控制对介质的访问的方法和系统。 在时域中定义了超帧结构，以包括具有至少一个调度资源分配（SRA）（3712），至少一个管理SRA（MSRA）（3718）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）（3746）。 该架构降低了站电池消耗，支持非实时（NRT）流量的更高吞吐量，并且对于实时（RT）流量更有效，同时保持完全兼容性。

公开(公告)号：WO2006081123A3

公开(公告)日：2009-04-23

申请号：PCT/US2006001840

申请日：2006-01-19

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  LEVY JOSEPH S ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD

Inventor： CHANDRA ARTY ,  LEVY JOSEPH S ,  GRANDHI SUDHEER A ,  ZEIRA ELDAD

IPC: H04W28/16 ,  H04W84/18

CPC classification number: H04W28/16 ,  H04W76/023 ,  H04W84/18

Abstract: 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.

Abstract translation: 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：WO2008088737A3

公开(公告)日：2008-11-20

申请号：PCT/US2008000395

申请日：2008-01-11

Applicant: INTERDIGITAL TECH CORP ,  KWAK JOSEPH A ,  LEVY JOSEPH S ,  ZUNIGA JUAN CARLOS ,  GRANDHI SUDHEER A

Inventor： KWAK JOSEPH A ,  LEVY JOSEPH S ,  ZUNIGA JUAN CARLOS ,  GRANDHI SUDHEER A

IPC: H04W24/00 ,  H04W28/04 ,  H04W48/16

CPC classification number: H04W24/00 ,  H04L1/20 ,  H04W48/16 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Metrics for estimating RF interference may be derived from measurements of idle channel noise, channel utilization, medium access delay, STA throughput, BSS throughput, and frame error rate. Further, metrics may be derived from the prior list of directly measured items in combination, as ratios and by rate of change analysis. RF interference is measured indirectly by measuring total idle channel power or by measuring changes in communication channel efficiency and frame errors.

Abstract translation: 用于估计RF干扰的度量可以从空闲信道噪声，信道利用率，介质访问延迟，STA吞吐量，BSS吞吐量和帧错误率的测量中导出。 此外，度量可以从先前组合的直接测量项目的列表中导出，作为比率和变化率分析。 射频干扰通过测量总空闲信道功率或通过测量通信信道效率和帧错误的变化来间接测量。

公开(公告)号：WO2007127311A3

公开(公告)日：2008-05-02

申请号：PCT/US2007010148

申请日：2007-04-24

Applicant: INTERDIGITAL TECH CORP ,  ZUNIGA JUAN CARLOS ,  GRANDHI SUDHEER A ,  RUDOLF MARIAN ,  LEVY JOSEPH S

Inventor： ZUNIGA JUAN CARLOS ,  GRANDHI SUDHEER A ,  RUDOLF MARIAN ,  LEVY JOSEPH S

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04W72/0446 ,  H04W72/04 ,  H04W72/0406 ,  H04W72/1263 ,  H04W74/04 ,  H04W74/06 ,  H04W74/08 ,  H04W84/12 ,  H04W84/18 ,  H04W88/04 ,  H04W99/00

Abstract: In accordance with a preferred embodiment, the present invention comprises a method for using the remaining TxOP time by the peer node to forward traffic to a different destination, a method for using the remaining TxOP time by the original node to send traffic to a different destination, a method for using the remaining TxOP time by a neighbor to send traffic to the original node, a method for using the remaining TxOP time by a neighbor to send traffic to another node, a method to signal the reuse rules of the remaining TxOP time, and a method to efficiently relinquish/truncate a TxOP to reset the NAV for the neighborhood.

Abstract translation: 根据优选实施例，本发明包括一种用于由对等节点将剩余的TxOP时间用于将业务转发到不同目的地的方法，用于由原始节点使用剩余TxOP时间以将流量发送到不同目的地的方法 用于由邻居使用剩余的TxOP时间来向原始节点发送业务的方法，用于由邻居将剩余的TxOP时间用于向另一个节点发送业务的方法，用于发送剩余TxOP时间的重用规则的方法 ，以及有效地放弃/截断TxOP以重置邻域的NAV的方法。

公开(公告)号：WO2007081683A3

公开(公告)日：2008-02-07

申请号：PCT/US2007000027

申请日：2007-01-03

Applicant: INTERDIGITAL TECH CORP ,  GRANDHI SUDHEER A ,  SAMMOUR MOHAMMED ,  LEVY JOSEPH S

Inventor： GRANDHI SUDHEER A ,  SAMMOUR MOHAMMED ,  LEVY JOSEPH S

IPC: H04L12/28

CPC classification number: H04W88/10 ,  H04W48/10 ,  H04W74/0816 ,  H04W88/06 ,  Y02D70/14

Abstract: A method and system applies MAC transmission opportunity (TXOP) protection for multiple mode operation in a WLAN system. In particular, MAC mechanisms are defined to support multiple mode CTS frames, and multiple mode CF-End frames sent by the AP, each in a format appropriate for the corresponding mode which also applies to a single mode as a trivial case. MAC mechanisms permit truncation of TXOP duration for releasing the unused portion of the TXOP when no further data for transmission is available. Release of unused protected TXOP is possible for both protected AP transmissions and STA transmissions.

Abstract translation: 一种方法和系统在WLAN系统中对多模式操作应用MAC传输机会（TXOP）保护。 特别地，MAC机制被定义为支持多模式CTS帧，以及由AP发送的多模式CF-结束帧，每个帧的格式适合于对应的模式，其也适用于单个模式作为平凡的情况。 当没有进一步的传输数据可用时，MAC机制允许截断TXOP持续时间以释放TXOP的未使用部分。 对于受保护的AP传输和STA传输都可以释放未使用的受保护的TXOP。

公开(公告)号：WO2007033056A3

公开(公告)日：2007-06-28

申请号：PCT/US2006035254

申请日：2006-09-11

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  GRANDHI SUDHEER A

Inventor： CHANDRA ARTY ,  ZEIRA ELDAD M ,  LEVY JOSEPH S ,  TERRY STEPHEN E ,  GRANDHI SUDHEER A

IPC: H04L12/28 ,  H04W74/08 ,  H04L12/56 ,  H04W48/08 ,  H04W80/02

CPC classification number: H04L1/0079 ,  H04W16/14 ,  H04W74/08 ,  H04W92/02

Abstract: 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.

Abstract translation: 公开了一种用于保护高吞吐量（HT）站（STA）的方法和设备。 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导码的另一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，以指示将在分组的剩余部分中使用哪种PHY类型。 在又一个实施例中，一个STA在不同于一个STA的另一类型的另一STA的存在下发送准备发送（RTS）/清除发送（CTS）或CTS到自身消息以用于保留介质 。 在又一个实施例中，接入点（AP）将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）的信标或关联消息与 HT保护机制。