专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明公开

EP1779702A1 CHANNEL SOUNDING FOR IMPROVED SYSTEM PERFORMANCE 有权转让
标题翻译：通道声音提高系统性能
公开(公告)号：EP1779702A1
公开(公告)日：2007-05-02
申请号：EP05779664.1
申请日：2005-08-09
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： LEVY, Joseph, S.
IPC分类号： H04Q11/02
CPC分类号： H04B17/26 , H04B7/02 , H04B7/0413 , H04B7/0417 , H04B7/0421 , H04B7/0443 , H04B7/0619 , H04B7/0626 , H04L1/0001 , H04L1/0003 , H04L1/0026 , H04L5/0044 , H04L27/26 , H04L27/2608 , H04L69/323 , H04L69/324 , H04W24/02 , H04W52/42 , H04W72/0413 , H04W72/042
摘要： A transmitter generates and transmits a low rate signal to its intended receiver. Upon receiving the low rate signal, the intended receiver generates and transmits a channel sounding response (CSR), said CSR being a short burst having a predefined transmit format and carrying predetermined information. The transmitter then analyzes the CSR and determines uplink channel response, estimates downlink channel response, and determines appropriate transmit parameter settings based on the analysis and downlink response estimate. Adjustment of the transmit parameters can be made in either the MAC or PHY layer or in a combination of both. After adjusting its transmit parameters and modulating sub-carriers with user-data according to the determined transmit settings, the transmitter transmits the user-data to the receiver on a preferred portion of bandwidth. In a preferred embodiment, the transmitter also generates and transmits a transmit format control (TFC) signal containing the determined transmit parameter settings, including sub-carrier modulation information, to the receiver.
摘要翻译：发射机产生低速率信号并将其发送给预期的接收机。一旦接收到低速率信号，预期接收器就生成并发送信道探测响应（CSR），所述CSR是具有预定义的发送格式并携带预定信息的短脉冲串。发射机然后分析CSR并确定上行链路信道响应，估计下行链路信道响应，并且基于分析和下行链路响应估计来确定适当的发射参数设置。发送参数的调整可以在MAC或PHY层中进行，也可以在两者的组合中进行。在根据所确定的发送设置调整其发送参数并用用户数据调制子载波之后，发送器在带宽的优选部分上将用户数据发送到接收器。在优选实施例中，发射机还产生包含所确定的发射参数设置（包括子载波调制信息）的发射格式控制（TFC）信号并将其发射到接收机。

42. 发明公开

EP1436925A1 SYSTEM AND METHOD FOR FAST DYNAMIC LINK ADAPTATION 审中-公开
标题翻译：系统VERFAHREN ZUR SCHNELLEN DYNAMISCHEN STRECKENANPASSUNG
公开(公告)号：EP1436925A1
公开(公告)日：2004-07-14
申请号：EP02802800.9
申请日：2002-10-18
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： TERRY, Stephen, E. , DICK, Stephen, G. , DIFAZIO, Robert, A. , LEVY, Joseph, S.
IPC分类号： H04J3/16
摘要： A method comprising: determining, by a user equipment, transport format combinations (TFCs) out of a set of transport format combinations (TFCS) that exceed a maximum transmit power level; wherein the TFCs of the TFCS have an order; and selecting, by a user equipment, a TFC for transmission of uplink data based on the order of TFCs and are TFCs that are determined to not exceed the maximum transmit power level.
摘要翻译：一种方法，包括：由用户设备从超过最大发射功率电平的一组传输格式组合（TFCS）中确定传输格式组合（TFC）; 其中TFCS的TFC有一个命令; 以及用户设备根据TFC的顺序选择用于发送上行链路数据的TFC，并且是被确定为不超过最大发射功率电平的TFC。

43. 发明授权

EP2123089B1 METHODS FOR MEASURING INTERFERENCE IN WIRELESS STATIONS 有权
标题翻译：方法无线基站的干扰测量
公开(公告)号：EP2123089B1
公开(公告)日：2010-09-15
申请号：EP08724477.8
申请日：2008-01-11
申请人： Interdigital Technology Corporation
发明人： KWAK, Joseph, A. , LEVY, Joseph, S. , ZUNIGA, Juan, Carlos , GRANDHI, Sudheer, A.
IPC分类号： H04W24/00
CPC分类号： H04W24/00 , H04L1/20 , H04W48/16 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： A wireless station (STA) is disclosed comprising a receiver configured to receive a measurement or metric from an access point (AP) and a processor configured to determine a correponding measurement or metric of the STA and to determine radio frequency (RF) interference by comparing the measurement or metric for the AP and the corresponding measurement or metric for the STA. The measurement or metric is an average noise power indicator (ANPI) measurement measuring an idle channel power perceived, a channel utilization metric (CHAN_UTIL) indicating a percentage of time the channel is perceived busy, or a medium access delay metric (MAD) indicating an average medium access delay.

44. 发明授权

EP2016709B1 HIGH-THROUGHPUT CHANNEL OPERATION IN A MESH WIRELESS LOCAL AREA NETWORK 有权
标题翻译：高吞吐量信道操作。在无线MESH
公开(公告)号：EP2016709B1
公开(公告)日：2010-05-26
申请号：EP07756066.2
申请日：2007-04-24
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： RUDOLF, Marian , ZUNIGA, Juan, Carlos , LEVY, Joseph, S. , GRANDHI, Sudheer A.
IPC分类号： H04L12/24
CPC分类号： 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
摘要： An Access Point comprising a network management entity is disclosed. The network management entity includes a receiver configured to retrieve capability and configuration data from a plurality of nodes, a processor configured to set up at least one node according to a channelization mode and a legacy protection mode based on the capability and configuration data, and a transmitter configured to transmit, to at least one of the plurality of nodes, at least one set of node-specific configuration data including channelization and legacy protection data based on the capability and configuration data.

45. 发明公开

EP1992117A2 METHOD AND APPARATUS FOR DISTRIBUTING BEACON INFORMATION 审中-公开
标题翻译：方法和设备分发信标信息
公开(公告)号：EP1992117A2
公开(公告)日：2008-11-19
申请号：EP07718252.5
申请日：2007-01-08
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： GRANDHI, Sudheer, A. , CHANDRA, Arty , ZEIRA, Eldad, M. , LEVY, Joseph, S.
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04W48/12
摘要： 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.

46. 发明公开

EP1842383A2 PEER-TO-PEER WIRELESS COMMUNICATION SYSTEM 审中-公开
标题翻译：无线对等通信系统
公开(公告)号：EP1842383A2
公开(公告)日：2007-10-10
申请号：EP06718848.2
申请日：2006-01-19
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： CHANDRA, Arty , LEVY, Joseph, S. , GRANDHI, Sudheer A. , ZEIRA, Eldad
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.

47. 发明公开

EP1530837A1 LOW POWER INTERFERENCE SIGNAL CODE POWER (ISCP) MEASUREMENT 有权
标题翻译：一种估计KODELEISTUNG干扰，用户设备和基站的测量
公开(公告)号：EP1530837A1
公开(公告)日：2005-05-18
申请号：EP03761965.7
申请日：2003-06-19
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： DICK, Stephen, G. , RUDOLF, Marian , LEVY, Joseph, S.
IPC分类号： H04B7/216 , H04B1/69 , H04Q7/20
CPC分类号： H04B17/309 , H04B7/2618 , H04B17/26 , H04B17/327 , H04B17/345 , Y02D70/449
摘要： An interference signal code power (ISCP) measurement is estimated in a time division multiple access/code division multiple access communication system. Signals transmitted in a particular time slot are received. A power level of the transmitted received signals of the particular time slot is measured. An association of ISCP values with measured power levels is provided. The measured power level is used to estimate an ISCP value. The estimated ISCP value is associated with that measured power level.
摘要翻译：干扰信号码功率（ISCP）测量估计在时分多址/码分多址通信系统。反式信号在一个特定时隙被接收mitted。所述特定时隙中的反mitted接收信号的功率电平被测量。提供ISCP值与实测功率水平的关联。所测量的功率电平被用来在ISCP值来估计。估计ISCP值与实测没有功率水平相关。

48. 发明公开

EP2123089A2 METHOD AND APPARATUS FOR MEASURING INTERFERENCE IN WIRELESS STATIONS 有权
标题翻译： VERFAHREN ZUR INTERFERENZMESSUNG BEI DRAHTLOSEN STATIONEN
公开(公告)号：EP2123089A2
公开(公告)日：2009-11-25
申请号：EP08724477.8
申请日：2008-01-11
申请人： Interdigital Technology Corporation
发明人： KWAK, Joseph, A. , LEVY, Joseph, S. , ZUNIGA, Juan, Carlos , GRANDHI, Sudheer, A.
IPC分类号： H04Q7/38
CPC分类号： H04W24/00 , H04L1/20 , H04W48/16 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： A wireless station (STA) is disclosed comprising a receiver configured to receive a measurement or metric from an access point (AP) and a processor configured to determine a correponding measurement or metric of the STA and to determine radio frequency (RF) interference by comparing the measurement or metric for the AP and the corresponding measurement or metric for the STA. The measurement or metric is an average noise power indicator (ANPI) measurement measuring an idle channel power perceived, a channel utilization metric (CHAN_UTIL) indicating a percentage of time the channel is perceived busy, or a medium access delay metric (MAD) indicating an average medium access delay.
摘要翻译：公开了一种无线站（STA），包括：接收机，被配置为从接入点（AP）接收测量或度量;以及处理器，被配置为确定STA的相应的测量或度量，并且通过比较来确定射频（RF）干扰 AP的测量或度量以及STA的相应测量或度量。测量或度量是测量所感知的空闲信道功率的平均噪声功率指示符（ANPI）测量，指示信道被感觉到占用的时间的百分比的信道利用度量（CHAN_UTIL）或指示信道的媒体接入延迟度量（MAD）平均介质访问延迟。

49. 发明授权

EP1972103B1 METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM 有权
标题翻译：方法和系统多个节点的有效运行在WLAN系统
公开(公告)号：EP1972103B1
公开(公告)日：2009-09-09
申请号：EP07709575.0
申请日：2007-01-03
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： GRANDHI, Sudheer A. , SAMMOUR, Mohammed , LEVY, Joseph, S.
IPC分类号： H04L12/28
CPC分类号： H04W88/10 , H04W48/10 , H04W74/0816 , H04W88/06 , Y02D70/14
摘要： 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.
摘要翻译：的方法和系统适用MAC传输机会（TXOP）的用于多模式操作在一个无线系统的保护。特别地，MAC机制被定义为支持多模式CTS帧，由AP发送的多个模式的CF-End帧，在每一个对于相应的方式哪那么适用于单模作为一个微不足道的情况下，适当的格式。 MAC机制允许TXOP持续时间的截断用于释放TXOP的未使用部分。当用于传输没有进一步的数据是可用的。未使用的保护TXOP的释放是可能的两种保护AP传输和STA发送。

50. 发明公开

EP1972103A2 METHODS AND SYSTEMS FOR PROVIDING EFFICIENT OPERATION OF MULTIPLE MODES IN A WLAN SYSTEM 有权
标题翻译：方法和系统多个节点的有效运行在WLAN系统
公开(公告)号：EP1972103A2
公开(公告)日：2008-09-24
申请号：EP07709575.0
申请日：2007-01-03
申请人： INTERDIGITAL TECHNOLOGY CORPORATION
发明人： GRANDHI, Sudheer A. , SAMMOUR, Mohammed , LEVY, Joseph, S.
IPC分类号： H04L12/28
CPC分类号： H04W88/10 , H04W48/10 , H04W74/0816 , H04W88/06 , Y02D70/14
摘要： 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.

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