专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

WO2007111941A2 METHOD AND APPARATUS FOR MAINTAINING UPLINK SYNCHRONIZATION AND REDUCING BATTERY POWER CONSUMPTION 审中-公开
标题翻译：保持上行链路同步和降低电池功耗的方法和设备
公开(公告)号：WO2007111941A2
公开(公告)日：2007-10-04
申请号：PCT/US2007007117
申请日：2007-03-22
申请人： INTERDIGITAL TECH CORP , WANG JIN , CHEN JOHN S , SAMMOUR MOHAMMED , TERRY STEPHEN E , CHANDRA ARTY , ZHANG GUODONG
发明人： WANG JIN , CHEN JOHN S , SAMMOUR MOHAMMED , TERRY STEPHEN E , CHANDRA ARTY , ZHANG GUODONG
IPC分类号： H04W56/00
CPC分类号： H04W56/0045 , H04J11/0069 , H04W52/0216 , H04W72/0413 , H04W92/10 , Y02D70/00 , Y02D70/1244 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/24
摘要： A Node-B sends a polling message to a wireless transmit/receive unit (WTRU). The WTRU sends an uplink synchronization burst in response to the polling message without contention. The Node-B estimates an uplink timing shift based on the synchronization burst and sends an uplink timing adjustment command to the WTRU. The WTRU then adjusts uplink timing based on the uplink timing adjustment command. Alternatively, the Node-B may send a scheduling message for uplink synchronization to the WTRU. The WTRU may send a synchronization burst based on the scheduling message. Alternatively, the WTRU may perform contention-based uplink synchronization after receiving a synchronization request from the Node-B. The WTRU may enter an idle state instead of performing a handover to a new cell when the WTRU moves to the new cell. A discontinuous reception (DRX) interval for the WTRU may be set based on activity of the WTRU.
摘要翻译：节点B向无线发射/接收单元（WTRU）发送轮询消息。 WTRU响应于轮询消息发送上行链路同步突发，而没有竞争。节点B基于同步突发来估计上行链路时移，并向WTRU发送上行链路时序调整命令。 WTRU然后基于上行链路定时调整命令来调整上行链路定时。备选地，节点B可以向WTRU发送用于上行链路同步的调度消息。 WTRU可以基于调度消息发送同步突发。或者，WTRU可以在从节点B接收到同步请求之后执行基于竞争的上行链路同步。 WTRU可以进入空闲状态，而不是在WTRU移动到新小区时执行到新小区的切换。 WTRU的不连续接收（DRX）间隔可以基于WTRU的活动来设置。

32. 发明申请

WO2007033056A3 METHOD AND APPARATUS FOR PROTECTING HIGH THROUGHPUT STATIONS 审中-公开
标题翻译：用于保护高吞吐量站的方法和设备
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
申请人： INTERDIGITAL TECH CORP , CHANDRA ARTY , ZEIRA ELDAD M , LEVY JOSEPH S , TERRY STEPHEN E , GRANDHI SUDHEER A
发明人： CHANDRA ARTY , ZEIRA ELDAD M , LEVY JOSEPH S , TERRY STEPHEN E , GRANDHI SUDHEER A
IPC分类号： H04L12/28 , H04W74/08 , H04L12/56 , H04W48/08 , H04W80/02
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。

33. 发明申请

WO2006115999A2 METHOD AND SYSTEM FOR EFFICIENT ADDRESSING AND POWER SAVINGS IN WIRELESS SYSTEMS 审中-公开
标题翻译：无线系统中有效寻址和省电的方法和系统
公开(公告)号：WO2006115999A2
公开(公告)日：2006-11-02
申请号：PCT/US2006014927
申请日：2006-04-20
申请人： INTERDIGITAL TECH CORP , SAMMOUR MOHAMMED , GRANDHI SUDHEER A , CHANDRA ARTY
发明人： SAMMOUR MOHAMMED , GRANDHI SUDHEER A , CHANDRA ARTY
IPC分类号： H04B7/00 , H04W4/08
CPC分类号： H04W52/0209 , H04W4/08 , H04W8/186 , H04W52/0216 , H04W52/0219 , H04W52/0229 , H04W84/12 , H04W88/08 , Y02B60/50 , Y02D70/00 , 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.
摘要翻译：一种在无线通信系统中寻址站组的方法，首先将系统中的站分配成多个组。组标识符被发信号通知给每个站，并且组帧标识符在帧中指示具有帧中的数据的每个组。寻址方法可以应用于该站的节电，其中如果该站的组标识符不存在于该帧中，则该站进入省电模式。

34. 发明申请

WO2008042367A3 METHOD AND APPARATUS OF ADAPTIVE SEQUENCE NUMBERING IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中自适应序列编号的方法和装置
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
申请人： INTERDIGITAL TECH CORP , SAMMOUR MOHAMMED , TERRY STEPHEN E , CHANDRA ARTY , WANG JIN
发明人： SAMMOUR MOHAMMED , TERRY STEPHEN E , CHANDRA ARTY , WANG JIN
IPC分类号： H04L1/16 , H04L1/18 , H04L9/08
CPC分类号： H04L1/165 , H04L1/1832 , H04L1/1867
摘要： 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.
摘要翻译：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）。

35. 发明申请

WO2007092245A3 QUALITY OF SERVICE BASED RESOURCE DETERMINATION AND ALLOCATION APPARATUS AND PROCEDURE IN HIGH SPEED PACKET ACCESS EVOLUTION AND LONG TERM EVOLUTION SYSTEMS 审中-公开
标题翻译：基于服务质量的资源确定和分配设备和程序在高速分组访问演进和长期演进系统
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
申请人： INTERDIGITAL TECH CORP , CHANDRA ARTY , WANG JIN , TERRY STEPHEN E
发明人： CHANDRA ARTY , WANG JIN , TERRY STEPHEN E
IPC分类号： H04L12/56 , H04W72/12 , H04W80/00
CPC分类号： 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
摘要： 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.
摘要翻译：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。

36. 发明申请

WO2008024214A2 MULTI-CELL COORDINATION FOR MULTIMEDIA BROADCAST MULTICAST SERVICES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线通信系统中多媒体广播多播服务的多小区协调
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
申请人： INTERDIGITAL TECH CORP , LU GUANG , ZHANG GUODONG , CHANDRA ARTY
发明人： LU GUANG , ZHANG GUODONG , CHANDRA ARTY
CPC分类号： H04W72/005
摘要： 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.
摘要翻译：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。

37. 发明申请

WO2007130324A2 RADIO LINK FAILURE DETECTION PROCEDURES IN LONG TERM EVOLUTION UPLINK AND DOWNLINK AND APPARATUS THEREFOR 审中-公开
标题翻译：无线链路故障检测程序长期演进上行链路和下行链路及其设备
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
申请人： INTERDIGITAL TECH CORP , WANG JIN , TERRY STEPHEN E , CHANDRA ARTY , CHEN JOHN S
发明人： WANG JIN , TERRY STEPHEN E , CHANDRA ARTY , CHEN JOHN S
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04B7/2637 , H04L1/24 , H04W24/08 , H04W56/00
摘要： 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.
摘要翻译：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。

38. 发明申请

WO2006081091A3 METHOD AND SYSTEM FOR ELIMINATING INTERFERENCE CAUSED BY HIDDEN NODES 审中-公开
标题翻译：消除干扰导致干扰的方法和系统
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
申请人： INTERDIGITAL TECH CORP , CHANDRA ARTY , GRANDHI SUDHEER A , ZEIRA ELDAD , LEVY JOSEPH S , DEHNIE SINTAYEHU , SAMMOUR MOHAMMED
发明人： CHANDRA ARTY , GRANDHI SUDHEER A , ZEIRA ELDAD , LEVY JOSEPH S , DEHNIE SINTAYEHU , SAMMOUR MOHAMMED
IPC分类号： H04W74/08
CPC分类号： H04W74/08 , H04L47/26 , H04L47/30 , H04W74/002 , Y02D70/00 , 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。

39. 发明申请

WO2007078712A3 CHOICE BETWEEN CONSECUTIVE AND DISTRIBUTED SUBCARRIER ALLOCATION FOR AN OFDMA LINK BASED ON THE RATE OF CHANGE OF THE CHANNEL IN TIME AND FREQUENCY 审中-公开
标题翻译：基于频率变化率的OFDMA链路的分配和分配的分组分配之间的选择
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
申请人： INTERDIGITAL TECH CORP , CHEN JOHN S , OLESEN ROBERT L , ZHANG GUODONG , SHIN SUNG-HYUK , LIM JUNSUNG , CHANDRA ARTY , GRANDHI SUDHEER A
发明人： CHEN JOHN S , OLESEN ROBERT L , ZHANG GUODONG , SHIN SUNG-HYUK , LIM JUNSUNG , CHANDRA ARTY , GRANDHI SUDHEER A
IPC分类号： H04L27/26
CPC分类号： H04L5/0007 , H04L1/0026 , H04L5/0037 , H04L5/0048 , H04L5/006 , H04L5/0085 , H04L25/022 , H04L25/0226 , H04L25/0232 , H04W72/08
摘要： 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.
摘要翻译：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。

40. 发明申请

WO2006107698A3 METHOD AND APPARATUS FOR SELECTING A MULTI-BAND ACCESS POINT TO ASSOCIATE WITH A MULTI-BAND MOBILE STATION 审中-公开
标题翻译：用于选择多带接入点的方法和装置，用于与多个移动站相关联
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
申请人： INTERDIGITAL TECH CORP , CHANDRA ARTY
发明人： CHANDRA ARTY
IPC分类号： H04M1/00 , H04W48/20 , H04W88/06
CPC分类号： 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
摘要： 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.
摘要翻译：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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式