公开(公告)号：US20070165726A1

公开(公告)日：2007-07-19

申请号：US11297879

申请日：2005-12-09

申请人： Yinong Ding ,  Farooq Khan ,  Cornelius van Rensburg

发明人： Yinong Ding ,  Farooq Khan ,  Cornelius van Rensburg

IPC分类号： H04K1/10

CPC分类号： H04L27/2607 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L27/2613

摘要： A base station comprising an antenna array including M antennas for transmitting data to a plurality of subscriber stations. The base station generates a first pilot signal preamble by adding a first cyclic prefix to a first pilot signal sequence and generates a second pilot signal preamble by adding a second cyclic prefix to a second pilot signal sequence. The second pilot signal sequence is a circularly shifted copy of the first pilot signal sequence. The first pilot signal preamble is transmitted from a first antenna and the second pilot signal preamble is transmitted from a second antenna concurrently with transmission of the first preamble.

摘要翻译： 一种基站，包括：天线阵列，包括用于向多个用户站发送数据的M个天线。 基站通过将第一循环前缀添加到第一导频信号序列来产生第一导频信号前导，并通过将第二循环前缀加到第二导频信号序列来产生第二导频信号前导码。 第二导频信号序列是第一导频信号序列的循环移位拷贝。 从第一天线发送第一导频信号前同步码，并且与第一前同步码的发送同时从第二天线发送第二导频信号前导码。

公开(公告)号：US20070030914A1

公开(公告)日：2007-02-08

申请号：US11483974

申请日：2006-07-10

申请人： Yinong Ding ,  Cornelius Rensburg ,  Farooq Khan

发明人： Yinong Ding ,  Cornelius Rensburg ,  Farooq Khan

IPC分类号： H04K1/10 ,  H03D1/04 ,  H04L27/06

CPC分类号： H04L25/024 ,  H04L25/0206 ,  H04L27/2647

摘要： A method of channel estimation and interference cancellation in an Orthogonal Frequency Division Multiple Access network is provided. The method includes determining an estimate of a transmitted signal based on an initial channel estimate and a received signal. An extracted transmitted signal is generated based on the estimate of the transmitted signal using a data integrity checking method. A subsequent channel estimate is generated based on the received signal and the extracted transmitted signal. If a subsequent iteration criterion is met, a subsequent estimate of the transmitted signal is determined based on the subsequent channel estimate and the received signal. A subsequent extracted transmitted signal is generated based on the subsequent estimate of the transmitted signal using a data integrity checking method. An additional subsequent channel estimate is generated based on the received signal and the subsequent extracted transmitted signal.

摘要翻译： 提供了一种正交频分多址网络中的信道估计和干扰消除方法。 该方法包括基于初始信道估计和接收信号确定发射信号的估计。 使用数据完整性检查方法，基于发送信号的估计来生成提取的发送信号。 基于所接收的信号和所提取的发送信号来生成随后的信道估计。 如果满足随后的迭代标准，则基于随后的信道估计和所接收的信号来确定发送信号的后续估计。 使用数据完整性检查方法，基于所发送信号的后续估计，生成随后提取的发送信号。 基于接收到的信号和随后提取的发送信号产生附加的后续信道估计。

公开(公告)号：US20060285483A1

公开(公告)日：2006-12-21

申请号：US11414965

申请日：2006-05-01

申请人： Farooq Khan

发明人： Farooq Khan

IPC分类号： H04J11/00

CPC分类号： H04L5/023 ,  H04L5/0007 ,  H04L5/0037 ,  H04L27/2602 ,  H04L27/2607 ,  H04L27/2647

摘要： A base station for use in an orthogonal frequency division multiplexing (OFDM) wireless network capable of communicating with a plurality of subscriber stations in a coverage area of the OFDM wireless network. The base station is capable of transmitting a first OFDM symbol in a first time slot, wherein the first OFDM symbol comprises a first plurality of subcarriers used to transmit broadcast data directed to a plurality of subscriber stations and a second plurality of subcarriers used to transmit unicast data directed to at least one selected subscriber station.

摘要翻译： 一种在正交频分复用（OFDM）无线网络中使用的基站，能够与OFDM无线网络的覆盖区域中的多个用户站进行通信。 基站能够在第一时隙中发送第一OFDM符号，其中第一OFDM符号包括用于发送指向多个用户站的广播数据的第一多个副载波，以及用于发送单播的第二多个副载波 指向至少一个选定的用户台的数据。

公开(公告)号：US20060239180A1

公开(公告)日：2006-10-26

申请号：US11327799

申请日：2006-01-06

申请人： Farooq Khan ,  Jiann-An Tsai

发明人： Farooq Khan ,  Jiann-An Tsai

IPC分类号： H04J11/00

CPC分类号： H04L27/2626 ,  H04B7/0671

摘要： A method of introducing frequency selectivity into transmissions in an orthogonal frequency division multiplexing network is provided. The method includes generating a symbol. A plurality of delayed symbols are generated based on the symbol. The delayed symbols are transmitted from multiple transmit antennas. The symbol delay values may be different for different users depending upon the users' channel characteristics.

摘要翻译： 提供了一种在正交频分复用网络中将频率选择性引入到传输中的方法。 该方法包括生成符号。 基于该符号生成多个延迟符号。 延迟符号从多个发射天线发射。 根据用户的频道特性，不同用户的符号延迟值可能不同。

公开(公告)号：US20060227888A1

公开(公告)日：2006-10-12

申请号：US11374928

申请日：2006-03-14

申请人： Farooq Khan

发明人： Farooq Khan

IPC分类号： H04K1/10

CPC分类号： H04L27/2614 ,  H04L5/023

摘要： A subscriber station for use in a wireless network capable of communicating according to a multi-carrier protocol, such as OFDM or OFDMA. The subscriber station comprises a size M Fourier Transform (FFT or DFT) block for receiving input symbols and generating M FT pre-coded outputs and a size N inverse Fourier Transform (IFFT or IDFT) block capable of receiving N inputs, where the N inputs include the M FT pre-coded outputs from the size M FT block. The size N IFT block generates N outputs to be transmitted to a base station of the wireless network. The input symbols comprise user data traffic to be transmitted to the base station. The size N IFT block also receives signaling and control information on at least some of N-M inputs. The FT pre-coding generates a time-domain signal that has a relatively lower peak-to-average power ratio (PAPR).

公开(公告)号：US20050265373A1

公开(公告)日：2005-12-01

申请号：US10856237

申请日：2004-05-28

申请人： Farooq Khan

发明人： Farooq Khan

IPC分类号： H04L29/08 ,  H04B7/26 ,  H04L1/00 ,  H04L12/56 ,  H04W24/10 ,  H04W28/06 ,  H04W72/12 ,  H04J3/16

CPC分类号： H04W72/1231 ,  H04L1/0026 ,  H04W72/1284 ,  H04W76/28

摘要： A method of data packet communication. The method includes the step of transmitting CQI in response to an inactive state. The step of transmitting CQI may include receiving an incoming signal associated with one or more real time duplex services, such as voice over IP (“VoIP”), gaming and/or two-way video applications, for example. Thereafter, the method includes the step of pausing the transmission of CQI in response to a break period in the inactive state. The break period may be initiated by transmitting an outgoing signal associated with at least one real time duplex service, such as voice over IP (“VoIP”), gaming and/or two-way video applications, for example. Moreover, the step of pausing may include receiving a do-not-transmit signal to initiate the break period.

摘要翻译： 一种数据包通信的方法。 该方法包括响应于非活动状态发送CQI的步骤。 发送CQI的步骤可以包括例如接收与一个或多个实时双工业务相关联的输入信号，例如IP语音（“VoIP”），游戏和/或双向视频应用。 此后，该方法包括响应于处于非活动状态的中断周期来暂停CQI的传输的步骤。 例如，通过发送与至少一个实时双工业务（例如IP语音（VoIP）），游戏和/或双向视频应用相关联的输出信号来启动中断时段。 此外，暂停的步骤可以包括接收不发送信号以启动中断周期。

公开(公告)号：US20050249127A1

公开(公告)日：2005-11-10

申请号：US10842707

申请日：2004-05-10

申请人： David Huo ,  Farooq Khan

发明人： David Huo ,  Farooq Khan

IPC分类号： H04J11/00 ,  H04L1/00 ,  H04L1/18 ,  H04L5/02 ,  H04L25/02 ,  H04L27/26 ,  H04Q7/36 ,  H04Q7/38 ,  H04L12/26

CPC分类号： H04L1/0026 ,  H04L1/1819 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0044 ,  H04L5/006 ,  H04L25/022 ,  H04L27/261

摘要： A method is provided for controlling transmissions between a base station and a plurality of mobile station over a plurality of subcarriers. Each mobile station is free to transmit over its own unique set of subcarriers, depending upon the quality of the various subcarriers. That is, the quality of at least a portion of the subcarriers is determined with respect to each mobile station. Thereafter at least a portion of the subcarriers are selected based upon the determined quality, and then information is transmitted to each mobile station using its own unique set of subcarriers.

摘要翻译： 提供了一种用于控制多个子载波上的基站与多个移动台之间的传输的方法。 根据各个子载波的质量，每个移动台可以自由地通过其自己的唯一的子载波集进行发送。 也就是说，相对于每个移动站确定至少一部分子载波的质量。 此后，基于确定的质量来选择至少一部分子载波，然后使用其自身唯一的子载波集合将信息发送到每个移动台。

公开(公告)号：US06532211B1

公开(公告)日：2003-03-11

申请号：US09421540

申请日：1999-10-20

申请人： Bela Rathonyi ,  Farooq Khan ,  Reiner Ludwig

发明人： Bela Rathonyi ,  Farooq Khan ,  Reiner Ludwig

IPC分类号： H04L118

CPC分类号： H04L1/007 ,  H04L1/0006 ,  H04L1/0009 ,  H04L1/1614 ,  H04L1/1635 ,  H04L1/187 ,  H04L1/1874

摘要： A communication device and method is provided, for which, when having implementations of first protocol that specifies different reliability levels for sending PDUs of a second protocol, where the second protocol specifies segmentation of PDUs of a third, higher layer protocol, a capability is introduced for setting the reliability level of second protocol (L2_ARQ) PDUs differently for second protocol PDUs belonging to a defined data structure containing such second protocol (L2_ARQ) data units. The defined data structure can be a higher layer protocol data unit or the send window. Thereby the delay caused by retransmission of second protocol data units can be reduced significantly.

摘要翻译： 提供了一种通信设备和方法，当具有指定用于发送第二协议的PDU的不同可靠性级别的第一协议的实现时，其中第二协议指定第三，更高层协议的PDU的分段，引入能力 用于为属于定义的包含这种第二协议（L2_ARQ）数据单元的数据结构的第二协议PDU设置第二协议（L2_ARQ）PDU的可靠性级别。 定义的数据结构可以是较高层协议数据单元或发送窗口。 从而可以显着地减少由重传第二协议数据单元引起的延迟。

公开(公告)号：US6163524A

公开(公告)日：2000-12-19

申请号：US175012

申请日：1998-10-19

申请人： Sverker Magnusson ,  Farooq Khan ,  Magnus Persson ,  Per Beming

发明人： Sverker Magnusson ,  Farooq Khan ,  Magnus Persson ,  Per Beming

IPC分类号： H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/20 ,  H04B7/216

CPC分类号： H04J13/20 ,  H04B7/2628 ,  H04J13/0044

摘要： In spread spectrum communications, a method for allocating and re-allocating channelization codes to new and existing channels in a way that makes the maximum number of codes available at a given time for channels of different rates and different spreading factors. If re-allocations are not performed, a communication system employing the invention has a higher capacity than a system employing a random allocation strategy. The invention also reduces signaling overhead for re-allocations in comparison to a random allocation strategy because fewer re-allocations are necessary.

摘要翻译： 在扩展频谱通信中，一种用于以使得在给定时间内具有不同速率和不同扩频因子的信道的最大码数可用于分配和重新分配信道化码到新的和现有信道的方法。 如果不执行重新分配，则采用本发明的通信系统具有比采用随机分配策略的系统更高的容量。 与随机分配策略相比，本发明还减少了重新分配的信令开销，因为需要较少的重新分配。

公开(公告)号：US09215036B2

公开(公告)日：2015-12-15

申请号：US12771872

申请日：2010-04-30

申请人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Farooq Khan ,  Jung Je Son

发明人： Ying Li ,  Zhouyue Pi ,  Baowei Ji ,  Farooq Khan ,  Jung Je Son

IPC分类号： H04M1/66 ,  H04M1/68 ,  H04L1/00 ,  H04W48/10 ,  H04W48/02 ,  H04W84/04

CPC分类号： H04L1/0045 ,  H04L1/0061 ,  H04W48/02 ,  H04W48/10 ,  H04W84/047

摘要： A system and method for identifying the accessibility of a base station in a communication system. The system includes at least one Closed Subscriber Group (CSG)-Open (hybrid) base station. The base station can apply a base station identifier, such as a CSG identifier, as a cyclic redundancy check (CRC) mask to a first broadcast channel communication and can include the base station identifier in the payload of, or as a CRC mask applied to, a second broadcast channel communication. A mobile station can determine from the base station identifier in the first broadcast communication if the mobile station is a member authorized closed access to the base station. The mobile station can determine from the base station identifier in second first broadcast communication if the mobile station is a non-member authorized open access to the base station.

摘要翻译： 一种用于识别通信系统中基站的可访问性的系统和方法。 该系统包括至少一个封闭用户组（CSG） - 开（混合）基站。 基站可以将诸如CSG标识符的基站标识符作为循环冗余校验（CRC）掩码应用于第一广播信道通信，并且可以将基站标识符包括在应用于 ，第二广播频道通信。 移动台可以从第一广播通信中的基站标识符确定移动台是否是被授权的对基站的封闭访问。 如果移动台是对基站的非会员授权的开放接入，则移动台可以从第二第一广播通信中的基站标识符确定。