公开(公告)号：EP1998501A3

公开(公告)日：2010-02-24

申请号：EP08163896.7

申请日：2003-03-04

申请人： Wi-LAN Inc.

发明人： Mehta, Hamang ,  Camacho, Don ,  Fenksik, Gabor ,  Bathrick, Greg

IPC分类号： H04L12/28 ,  H04N7/173 ,  H04Q11/04 ,  H04M11/06 ,  H04L12/18

CPC分类号： H04L12/18 ,  H04L12/185 ,  H04L63/101 ,  H04M11/062 ,  H04N7/17318 ,  H04N21/258 ,  H04N21/4384 ,  H04N21/4627 ,  H04N21/6125

摘要： A method and system for fast channel changes of media that is provided by carriers over an xDSL connection to a hom. Each customer's subscriber information is stored at the DSLAM that supports the xDSL connection to the home. Also, each DSLAM supports multicast protocols so that only one instance of a channel is provided on the core network regardless of how many customers have requested access to the channel.

公开(公告)号：EP2123078A1

公开(公告)日：2009-11-25

申请号：EP08727739.8

申请日：2008-01-16

申请人： WI-LAN Inc.

发明人： BOURLAS, Yair ,  GRAUMANN, Peter J. ,  ZAHEDI, Sina ,  PORAT, Ron

IPC分类号： H04Q7/36 ,  H04B7/26

CPC分类号： H04L5/023 ,  H04W72/1257 ,  H04W72/1263

摘要： Allocations for access in a wireless system may be tiled onto a subframe having a first dimension and a second dimension. In an exemplary embodiment, allocations are distributed along the first dimension while the second dimension is locked, and the allocations are distributed along the second dimension while the first dimension is locked. In another exemplary embodiment, allocations are striped by extending a length of a first allocation along the first dimension and by expanding a breadth of the first allocation along the second dimension responsive to a size of the first allocation and by extending a length of a second allocation along the second dimension and expanding a breadth of the second allocation along the first dimension responsive to a size of the second allocation. In yet another exemplary embodiment, multiple allocations are placed proximately to an allocation placement target and allocation-free areas are produced on a subframe.

公开(公告)号：EP1998501A2

公开(公告)日：2008-12-03

申请号：EP08163896.7

申请日：2003-03-04

申请人： WI-LAN Inc.

发明人： Mehta, Hamang ,  Camacho, Don ,  Fenksik, Gabor ,  Bathrick, Greg

IPC分类号： H04L12/28 ,  H04N7/173 ,  H04Q11/04 ,  H04M11/06 ,  H04L12/18

CPC分类号： H04L12/18 ,  H04L12/185 ,  H04L63/101 ,  H04M11/062 ,  H04N7/17318 ,  H04N21/258 ,  H04N21/4384 ,  H04N21/4627 ,  H04N21/6125

摘要： A method and system for fast channel changes of media that is provided by carriers over an xDSL connection to a hom. Each customer's subscriber information is stored at the DSLAM that supports the xDSL connection to the home. Also, each DSLAM supports multicast protocols so that only one instance of a channel is provided on the core network regardless of how many customers have requested access to the channel.

摘要翻译： 用于通过xDSL连接到总线的载体提供的媒体的快速频道改变的方法和系统。 每个客户的用户信息存储在支持xDSL连接到家庭的DSLAM。 此外，每个DSLAM支持多播协议，使得在核心网络上仅提供一个信道实例，而不管有多少客户请求访问该信道。

公开(公告)号：EP1221216B1

公开(公告)日：2007-01-10

申请号：EP00950837.5

申请日：2000-07-28

申请人： Wi-LAN, Inc.

发明人： KLEIN, Israel, Jay ,  STANWOOD, Kenneth, L. ,  POLLMAN, Steve ,  PRICE, Frederick, W. ,  HADAR, Rami ,  ARVIV, Eli ,  GAZELLE, David ,  GILBERT, Sheldon

IPC分类号： H04L1/00 ,  H04L27/00

CPC分类号： H04B7/2656 ,  H04L1/0003 ,  H04L1/0004 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/0065 ,  H04L1/0083 ,  H04L25/03038 ,  H04L27/0008 ,  H04L2025/0342 ,  H04L2025/03477 ,  H04W72/0446 ,  H04W88/02 ,  H04W88/08 ,  Y02D50/10

摘要： The present invention relates to a method of updating the weights of a FIR filter where the filter processes symbols having variable modulation rates. When the modulation rate of the incoming symbols changes, the weights corresponding to the first symbol having the new modulation rate are changed based as the symbol propagates through the filter.

公开(公告)号：EP1183902B1

公开(公告)日：2005-01-26

申请号：EP00942639.6

申请日：2000-05-19

申请人： Wi-LAN, Inc.

发明人： STANWOOD, Kenneth, L. ,  MOLLENAUER, James, F. ,  KLEIN, Isreal, Jay ,  GILBERT, Sheldon, L.

IPC分类号： H04Q11/04

CPC分类号： H04W72/0413 ,  H04L5/0064 ,  H04L5/0092 ,  H04L2012/5607 ,  H04L2012/561 ,  H04Q11/0478 ,  H04W4/06 ,  H04W8/24 ,  H04W28/0268 ,  H04W28/06 ,  H04W28/14 ,  H04W56/0005 ,  H04W60/00 ,  H04W72/0406 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0453 ,  H04W72/048 ,  H04W72/10 ,  H04W74/06

摘要： A method and apparatus for requesting and allocating bandwidth in a broadband wireless communication system. The inventive method and apparatus includes a combination of techniques that allow a plurality of CPEs to communicate their bandwidth request messages to respective base stations. One technique includes a 'polling' method whereby a base station polls CPEs individually or in groups and allocates bandwidth specifically for the purpose of allowing the CPEs to respond with bandwidth requests. The polling of the CPEs by the base station may be in response to a CPE setting a 'poll-me bit' or, alternatively, it may be periodic. Another technique comprises 'piggybacking' bandwidth requests on bandwidth already allocated to a CPE. In accordance with this technique, currently active CPEs request bandwidth using previously unused portions of uplink bandwidth that is already allocated to the CPE. The CPE is responsible for distributing the allocated uplink bandwidth in a manner that accommodates the services provided by the CPE. By using a combination of bandwidth allocation techniques, the present invention advantageously makes use of the efficiency benefits associated with each technique.

公开(公告)号：EP0562868A2

公开(公告)日：1993-09-29

申请号：EP93302325.1

申请日：1993-03-25

申请人： WI-LAN Inc

发明人： Fattouche, Michael ,  Zagloul, Hatim

IPC分类号： H04Q7/04

CPC分类号： H04L27/2649 ,  H04B1/707 ,  H04L5/026 ,  H04L25/03343 ,  H04L27/2602 ,  H04L27/2627 ,  H04L2025/03414

摘要： A method for allowing a number of wireless transceivers to exchange information (data, voice or video) with each other. A first frame of information is multiplexed over a number of wideband frequency bands at a first transceiver, and the information transmitted to a second transceiver. The information is received and processed at the second transceiver. The information is differentially encoded using phase shift keying. In addition, after a pre-selected time interval, the first transceiver may transmit again. During the preselected time interval, the second transceiver may exchange information with another transceiver in a time duplex fashion. The processing of the signal at the second transceiver may include estimating the phase differential of the transmitted signal and pre-distorting the transmitted signal. A transceiver includes an encoder for encoding information, a wideband frequency division multiplexer for multiplexing the information onto wideband frequency voice channels, and a local oscillator for upconverting the multiplexed information. The apparatus may include a processor for applying a Fourier transform to the multiplexed information to bring the information into the time domain for transmission.

Use/advantage: Time and frequency multiplexing,
Multiple access in wideband transmission

摘要翻译： 一种允许多个无线收发器，以与海誓山盟交换信息（数据，语音或视频）方法。 的信息的第一帧中的一个第一收发器被复用在数字宽带频带，并且信息反式mitted到第二收发器。 的信息被接收，并且在第二收发信机处理。 信息是使用相移键控差分编码。 此外，预先选择的时间间隔之后，第一收发器可以再次发送。 在预选的时间间隔，第二收发器可以与以时间双工方式另一个收发器交换信息。 在所述第二收发器的信号的处理可以包括估计所述反mitted信号和预失真的反式mitted信号的相位差。 收发器包括编码器，用于编码信息，宽带频分多路复用器，用于多路复用信息映射到宽带频率的话音信道，和用于上变换复用信息的本地振荡器。 该装置可以包括用于将傅立叶变换应用于复用的信息，以使信息为用于传输的时域的处理器。