公开(公告)号：WO2006086429A3

公开(公告)日：2007-11-01

申请号：PCT/US2006004363

申请日：2006-02-08

Applicant: INTERDIGITAL TECH CORP ,  LIU KAI ,  WANG CARL ,  CHANDRA ARTY ,  WANG JIN

Inventor： LIU KAI ,  WANG CARL ,  CHANDRA ARTY ,  WANG JIN

IPC: H04L12/413 ,  H04W16/28

CPC classification number: H04W16/28 ,  H04B7/0695

Abstract: An access point receives uplink transmissions from client stations using directional antenna beams. The directional antenna beams are generated by an antenna array. The different directional antenna beams are assigned beam identification numbers, and a preferred antenna beam is selected for each client station. The client stations in the different antenna beam regions initiate their uplink transmissions using assigned backoff slots within the contention window. The access point selects the preferred directional antenna beam corresponding to the directional antenna beams assigned to the backoff slots.

Abstract translation: 接入点使用定向天线波束从客户端站接收上行链路传输。 定向天线波束由天线阵列产生。 不同的定向天线波束被分配波束识别号，并且为每个客户站选择优选的天线波束。 不同天线波束区域中的客户端站在竞争窗口内使用分配的退避时隙来发起其上行链路传输。 接入点选择对应于分配给退避时隙的定向天线波束的优选定向天线波束。

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：WO2006107886A2

公开(公告)日：2006-10-12

申请号：PCT/US2006012335

申请日：2006-03-31

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  ZEIRA ELDAD ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

Inventor： CHANDRA ARTY ,  ZEIRA ELDAD ,  SAMMOUR MOHAMMED ,  GRANDHI SUDHEER A

IPC: H04L1/18

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

Abstract: The method involves sending a request frame to a responder by an initiator, and sending a response frame to the initiator without sending a separate acknowledgement (ACK) frame for acknowledging receipt of the request frame. The response frame is sent by the responder within a short inter-frame spacing (SIFS) from time that the responder receives the request frame, where the responder has a request identity number in the response frame. An independent claim is also included for a wireless communication system comprising an initiator.

Abstract translation: 该方法包括由发起者向请求者发送请求帧，并且向发起者发送响应帧，而​​不发送用于确认接收请求帧的单独的确认（ACK）帧。 应答器在响应者接收到请求帧的时间内在短帧间距（SIFS）内由响应者发送响应帧，响应者在响应帧中具有请求标识号。 还包括用于包括发起者的无线通信系统的独立权利要求。

公开(公告)号：WO2008042367A3

公开(公告)日：2008-08-14

申请号：PCT/US2007021149

申请日：2007-10-01

Applicant: INTERDIGITAL TECH CORP ,  SAMMOUR MOHAMMED ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  WANG JIN

Inventor： SAMMOUR MOHAMMED ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  WANG JIN

IPC: H04L1/16 ,  H04L1/18 ,  H04L9/08

CPC classification number: H04L1/165 ,  H04L1/1832 ,  H04L1/1867

Abstract: A method and apparatus of adaptive sequence numbering in a wireless communication system includes determining whether or not a packet to be transmitted will be segmented. Based upon the segmentation determination, a determination as to whether or not to include a radio link controller (RLC) specific automatic repeat request (ARQ) sequence number (SN) to the packet is made. An indicator is added to indicate whether or not the RLC-specific ARQ SN is included in the packet. The packet is transmitted, and an acknowledgment (ACK) is received for the transmitted packet.

Abstract translation: 无线通信系统中的自适应序列编号的方法和装置包括确定要传输的分组是否将被分段。 基于分段确定，做出关于是否将无线电链路控制器（RLC）特定自动重复请求（ARQ）序列号（SN）包括到分组的确定。 添加指示符以指示RLC特定的ARQ SN是否包括在分组中。 该分组被发送，并且针对所发送的分组接收到确认（ACK）。

公开(公告)号：WO2007092245A3

公开(公告)日：2008-03-06

申请号：PCT/US2007002738

申请日：2007-01-31

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY ,  WANG JIN ,  TERRY STEPHEN E

Inventor： CHANDRA ARTY ,  WANG JIN ,  TERRY STEPHEN E

IPC: H04L12/56 ,  H04W72/12 ,  H04W80/00

CPC classification number: H04B7/2612 ,  H04B7/0413 ,  H04L1/0002 ,  H04L1/0007 ,  H04L1/0017 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1822 ,  H04L1/1825 ,  H04L1/1867 ,  H04W72/0453 ,  H04W72/085 ,  H04W72/1236 ,  H04W80/00 ,  H04W80/06

Abstract: A wireless transmit receive unit (WTRU) and method are provided that process communication data in a hierarchy of processing layers including a physical (PHY) layer, a medium access control (MAC) layer and higher layers. A MAC layer transport format selection device defines an assignment of higher layer transmission data to parallel data streams based on data characteristics received from higher layers and physical resource information received from the PHY layer. The transport format selection device also generates transport format parameters for each data stream. A multiplexer component multiplexes the transmission data onto the parallel data streams in transport blocks in accordance with the data stream assignment and the respective transport format parameters generated by the transport format selection device and outputs the selectively multiplexed transmission data to the PHY layer for transmission over respective physical resource partitions. Preferably, the transport format selection device also generates physical transmission attributes such as modulation and coding rate (MCR), number of subframes per transmission time interval (TTI), duration of TTI, transmission power and hybrid automatic repeat request (HARQ) parameters.

Abstract translation: 提供了一种在包括物理（PHY）层，介质访问控制（MAC）层和更高层的处理层的层次中处理通信数据的无线发射接收单元（WTRU）和方法。 MAC层传输格式选择设备基于从较高层接收的数据特性和从PHY层接收的物理资源信息，定义较高层传输数据到并行数据流的分配。 传输格式选择设备还为每个数据流生成传输格式参数。 复用器组件根据由传输格式选择装置产生的数据流分配和相应的传输格式参数，将传输数据复用到传输块中的并行数据流上，并将有选择地复用的传输数据输出到PHY层，以便在相应的 物理资源分区。 优选地，传输格式选择设备还生成诸如调制和编码率（MCR），每个传输时间间隔（TTI）的子帧数量，TTI的持续时间，传输功率和混合自动重传请求（HARQ）参数的物理传输属性。

公开(公告)号：WO2008024214A2

公开(公告)日：2008-02-28

申请号：PCT/US2007017712

申请日：2007-08-09

Applicant: INTERDIGITAL TECH CORP ,  LU GUANG ,  ZHANG GUODONG ,  CHANDRA ARTY

Inventor： LU GUANG ,  ZHANG GUODONG ,  CHANDRA ARTY

CPC classification number: H04W72/005

Abstract: The present invention is related to a method and system for multi-cell coordination for multimedia broadcast multicast services (MBMS) in a wireless communication system. An MBMS multi-cell coordination unit is provided to coordinate a plurality of evolved Node-Bs (eNodeBs) for transmission of MBMS data synchronously in multiple cells of the same single frequency network (SFN). The MBMS multi-cell coordination unit may be located in an access gateway or in an eNodeB. An MBMS multi-cell scheduling scheme may be preconfigured for the eNodeBs for synchronization. Alternatively, the eNodeBs may be synchronized dynamically.

Abstract translation: 本发明涉及一种用于无线通信系统中多媒体广播组播服务（MBMS）的多小区协调的方法和系统。 提供MBMS多小区协调单元，用于在同一单频网络（SFN）的多个小区中同步地协调用于MBMS数据传输的多个演进节点B（eNodeB）。 MBMS多小区协调单元可以位于接入网关或eNodeB中。 可以为eNodeB同步预先配置MBMS多小区调度方案。 或者，可以动态地同步eNodeB。

公开(公告)号：WO2007130324A2

公开(公告)日：2007-11-15

申请号：PCT/US2007010394

申请日：2007-04-30

Applicant: INTERDIGITAL TECH CORP ,  WANG JIN ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  CHEN JOHN S

Inventor： WANG JIN ,  TERRY STEPHEN E ,  CHANDRA ARTY ,  CHEN JOHN S

IPC: H04L12/28 ,  H04L12/56

CPC classification number: H04B7/2637 ,  H04L1/24 ,  H04W24/08 ,  H04W56/00

Abstract: A method and apparatus for detecting a radio link (RL) failure for uplink (UL) and downlink (DL) in a long term evolution (LTE) wireless communication system including at least one wireless transmit/receive unit (WTRU) and at least one evolved Node-B (eNodeB) are disclosed. A determination is made as to whether an RL has an in-synchronization status or an out-of-synchronization status. An RL failure is declared if an out-of-synchronization status is detected.

Abstract translation: 一种用于在包括至少一个无线发射/接收单元（WTRU）和至少一个无线发射/接收单元（WTRU）的长期演进（LTE）无线通信系统中检测用于上行链路（UL）和下行链路（DL）的无线电链路（RL）故障的方法和装置 演进型节点B（eNodeB）。 确定RL是否具有同步状态或不同步状态。 如果检测到不同步状态，则会声明RL故障。

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：WO2007078712A3

公开(公告)日：2007-08-23

申请号：PCT/US2006047327

申请日：2006-12-12

Applicant: INTERDIGITAL TECH CORP ,  CHEN JOHN S ,  OLESEN ROBERT L ,  ZHANG GUODONG ,  SHIN SUNG-HYUK ,  LIM JUNSUNG ,  CHANDRA ARTY ,  GRANDHI SUDHEER A

Inventor： CHEN JOHN S ,  OLESEN ROBERT L ,  ZHANG GUODONG ,  SHIN SUNG-HYUK ,  LIM JUNSUNG ,  CHANDRA ARTY ,  GRANDHI SUDHEER A

IPC: H04L27/26

CPC classification number: H04L5/0007 ,  H04L1/0026 ,  H04L5/0037 ,  H04L5/0048 ,  H04L5/006 ,  H04L5/0085 ,  H04L25/022 ,  H04L25/0226 ,  H04L25/0232 ,  H04W72/08

Abstract: In an orthogonal frequency division multiple access (OFDMA) system including at least one base station and at least one wireless transmit/receive unit (WTRU), sub-carriers are allocated for data transmissions to multiple access WTRUs, where sub-carriers are allocated according to a consecutive sub-carrier allocation (CSA) type and a distributed sub-carrier allocation (DSA) type. Pilot signals with distributed pilot sub-carriers are transmitted and measured at each WTRU to obtain a channel quality metric for each pilot sub-carrier. Each WTRU sends feedback to the base station reporting channel quality based on the measured channel quality metrics. An allocation type is selected and adaptively switched according to channel variations in time and frequency domain.

Abstract translation: 在包括至少一个基站和至少一个无线发射/接收单元（WTRU）的正交频分多址（OFDMA）系统中，分配了用于向多个接入WTRU进行数据传输的子载波，其中根据 连续的子载波分配（CSA）类型和分布式子载波分配（DSA）类型。 在每个WTRU处，发射和测量具有分布式导频子载波的导频信号，以获得每个导频子载波的信道质量度量。 每个WTRU基于所测量的信道质量度量向基站报告信道质量的反馈。 根据时域和频域的频道变化选择分配类型并进行自适应切换。

公开(公告)号：WO2006107698A3

公开(公告)日：2007-06-14

申请号：PCT/US2006011634

申请日：2006-03-30

Applicant: INTERDIGITAL TECH CORP ,  CHANDRA ARTY

Inventor： CHANDRA ARTY

IPC: H04M1/00 ,  H04W48/20 ,  H04W88/06

CPC classification number: H04W72/0453 ,  H04L5/0048 ,  H04W48/08 ,  H04W48/12 ,  H04W48/20 ,  H04W76/02 ,  H04W76/064 ,  H04W88/06 ,  H04W88/08 ,  H04W88/10 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

Abstract: A method and apparatus for selecting one of a plurality of multi-band access points (APs) to associate with a multi-band wireless transmit/receive unit (WTRU) are disclosed. The multi-band APs broadcast frequency band information regarding multiple frequency bands on which the multi-band AP is configured to operate. The multi-band WTRU selects a particular multi-band AP to associate with and a frequency band to use to communicate with the selected multi-band AP based on the frequency band information. If the multi-band WTRU receives frequency band information from the selected multi-band AP which indicates that a characteristic, (e.g., throughput, path loss, load, capacity, backhaul), of the selected frequency band is unacceptable, the multi-band WTRU determines whether to disassociate with the selected multi-band AP or to continue to associate with the selected multi-band AP via a different frequency band.

Abstract translation: 公开了一种用于选择与多频带无线发射/接收单元（WTRU）相关联的多个多频带接入点（AP）中的一个的方法和装置。 多频带AP广播关于多频带AP被配置为操作的多个频带的频带信息。 多频带WTRU基于频带信息，选择特定的多频带AP和用于与所选择的多频带AP进行通信的频带。 如果多频带WTRU从所选择的多频带AP接收到频带信息，其指示所选频带的特性（例如，吞吐量，路径损耗，负载，容量，回程）是不可接受的，则该多频带 WTRU确定是否与所选择的多频带AP分离，或者通过不同的频带继续与所选择的多频带AP相关联。