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1. 发明授权

US07433418B1 Method and apparatus for efficient storage of training sequences for peak to average power constrained modulation formats 有权
标题翻译：用于有效存储训练序列的峰值与平均功率约束调制格式的方法和装置
公开(公告)号：US07433418B1
公开(公告)日：2008-10-07
申请号：US09967208
申请日：2001-09-28
申请人： Mithat C. Dogan , Mitchell D. Trott
发明人： Mithat C. Dogan , Mitchell D. Trott
IPC分类号： H04B15/00
CPC分类号： H04J13/00 , H04B2201/70706 , H04L27/2613 , H04W52/262
摘要： Some embodiments store a training sequence in a communications system. The stored training sequence exhibits certain desirable characteristics when used by a peak to average power constrained modulation format. In one embodiment, a set of original ordered sequences is selected to have at least one desired property. A set of extended sequences is created from the original sequences by beginning with an element of an original sequence and cyclically appending elements of the original sequence in order to obtain a desired extended sequence length. Each extended sequence is modified using a corresponding modifying sequence, such that a training sequence can be generated from any one of the modified extended sequences. Each modifying sequence is selected so that the generated training sequence when modulated by a selected modulation format has the at least one desired property of the corresponding original ordered sequence.
摘要翻译：一些实施例将训练序列存储在通信系统中。存储的训练序列在由峰值对平均功率约束调制格式使用时呈现出一定的期望特性。在一个实施例中，选择一组原始有序序列以具有至少一个期望的属性。从原始序列创建一组扩展序列，从原始序列的元素开始，并循环地附加原始序列的元素，以获得期望的扩展序列长度。使用相应的修改序列修改每个扩展序列，使得可以从修改的扩展序列中的任一个产生训练序列。选择每个修改序列，使得当由选择的调制格式调制时产生的训练序列具有相应的原始有序序列的至少一个所需属性。

2. 发明授权

US07433347B1 Broadcast superframe with variable reuse and interference levels for a radio communications system 失效
标题翻译：具有无线电通信系统可变重用和干扰电平的广播超帧
公开(公告)号：US07433347B1
公开(公告)日：2008-10-07
申请号：US10187062
申请日：2002-06-28
申请人： Mitchell D. Trott , Tibor Boros
发明人： Mitchell D. Trott , Tibor Boros
IPC分类号： H04B7/212 , H04Q7/20 , H04J3/06
CPC分类号： H04B7/26
摘要： A method and apparatus are provided to enhance the efficiency of reuse of a broadcast channel. In one embodiment, the invention includes sending a first burst of a broadcast channel from a broadcast channel radio subject to a first reuse factor, and sending a second burst of the broadcast channel from the broadcast channel radio subject to a second reuse factor. In another embodiment, the invention includes broadcast channel structure with a primary segment having a first reuse factor, a plurality of secondary segments having a second reuse factor greater than the first reuse factor.
摘要翻译：提供了一种提高广播频道重用效率的方法和装置。在一个实施例中，本发明包括从广播频道无线电接收第一重用因子发送广播频道的第一突发，并且从第二重用因子的广播信道无线电发送广播信道的第二突发。在另一个实施例中，本发明包括具有第一重用因子的主分段的广播信道结构，具有大于第一重用因子的第二重用因子的多个次分段。

3. 发明授权

US07352774B2 Multiplexing different types of data sequences 有权
标题翻译：复用不同类型的数据序列
公开(公告)号：US07352774B2
公开(公告)日：2008-04-01
申请号：US10262427
申请日：2002-09-30
申请人： Christopher R. Uhlik , Douglas C. Dahlby , Rabih Chrabieh
发明人： Christopher R. Uhlik , Douglas C. Dahlby , Rabih Chrabieh
IPC分类号： H04J3/24
CPC分类号： H04L1/0083 , H04L1/18 , H04L69/22 , H04L2001/0098 , H04W72/1242
摘要： According to an embodiment of the invention, a method and apparatus are described for data bit sequences. According to an embodiment of the invention, a header is inserted in a data burst. One or more high priority messages of a first type are optionally inserted in the data burst starting after the header. One or more messages of a second type are optionally inserted into the data burst starting at an end of the data burst. One or more low priority messages of the first type are optionally inserted in the data.
摘要翻译：根据本发明的实施例，描述了一种用于数据比特序列的方法和装置。根据本发明的实施例，在数据突发中插入报头。一个或多个第一类型的高优先级消息可选地插入到头部之后的数据突发中。第二类型的一个或多个消息可选地插入到从数据突发结束开始的数据脉冲串中。第一类型的一个或多个低优先级消息可选地插入数据中。

4. 发明授权

US07339981B2 Shifted training sequences in a communications system 有权
标题翻译：移动训练序列在通信系统中
公开(公告)号：US07339981B2
公开(公告)日：2008-03-04
申请号：US10191642
申请日：2002-07-09
申请人： Mithat C. Dogan
发明人： Mithat C. Dogan
IPC分类号： H04L7/00
CPC分类号： H04L25/0226
摘要： Embodiments of the present invention can be used to select a training sequence used by a base station and a user terminal for communications. In one embodiment, selecting the training sequence to use includes first selecting a training sequence from a set of training sequences. Then, a shift indicator is received, the shift indicator indicating a number of symbols the training sequence is to be shifted. A shifted training sequence is generated by shifting the selected training sequence by the number indicated by the received shift indicator, and the shifted training sequence is used for communication with a first transceiver on a communications channel. In another embodiment, a shift indicator indicating a number of symbols a training sequence is to be shifted is first selected, and then used to generate a shifted training sequence by shifting the training sequence by the number of symbols indicated by the selected shift indicator. The shifted training sequence is then used for communicating with a transceiver on a communications channel.
摘要翻译：本发明的实施例可以用于选择基站和用户终端用于通信的训练序列。在一个实施例中，选择要使用的训练序列包括首先从一组训练序列中选择训练序列。然后，接收到移位指示符，移位指示符指示训练序列将被移位的符号的数目。通过将所选择的训练序列移位所接收到的移位指示符所指示的数字来产生移位的训练序列，并且移位的训练序列用于与通信信道上的第一收发信机进行通信。在另一个实施例中，首先选择指示要移动训练序列的符号数量的移位指示符，然后用于通过将训练序列移位由所选择的移位指示符指示的符号数来产生移位的训练序列。移位的训练序列然后用于与通信信道上的收发器进行通信。

5. 发明授权

US07164726B1 Broadcast burst using spatial diversity for a radio communications system 有权
标题翻译：使用无线电通信系统的空间分集的广播突发
公开(公告)号：US07164726B1
公开(公告)日：2007-01-16
申请号：US10187230
申请日：2002-06-28
申请人： Mitchell D. Trott
发明人： Mitchell D. Trott
IPC分类号： H04L1/02
CPC分类号： H04B7/0615 , H04J13/0048
摘要： A method and apparatus are provided that allows a single spatially directed broadcast burst to serve users throughout a base station sector. In one embodiment, the invention includes sending a first segment of a broadcast channel burst using a first set of unchanging spatial parameters from an array of antenna elements, and sending a second segment of the broadcast channel burst using a second set of different unchanging spatial parameters from the array of antenna elements.
摘要翻译：提供了允许单个空间定向的广播突发在整个基站扇区中为用户提供服务的方法和装置。在一个实施例中，本发明包括使用来自天线元件阵列的第一组不变空间参数发送广播信道突发的第一段，以及使用第二组不同的不变空间参数发送广播信道突发的第二段从阵列天线元件。

6. 发明授权

US07050832B2 Variable diversity transmission in a radio communications system based on characteristics of a received signal 有权
公开(公告)号：US07050832B2
公开(公告)日：2006-05-23
申请号：US09996633
申请日：2001-11-28
申请人： Athanasios Agamamnon Kasapi
发明人： Athanasios Agamamnon Kasapi
IPC分类号： H04B1/38
CPC分类号： H04B7/0689 , H04B7/0408 , H04B7/0615 , H04B7/0617
摘要： A method and apparatus are provided that measures received radio communications signals to determine whether or what degree to use transmit diversity and beam forming. In one embodiment, the invention includes receiving a radio signal from a remote terminal at a plurality of antennas, comparing characteristics of the received signal as received at the plurality of antennas, determining whether reception of radio signals transmitted to the remote terminal is likely to be improved by diversity transmission based on the comparisons and transmitting radio signals to the remote terminal using diversity if the reception is likely to be improved.

7. 发明授权

US07039016B1 Calibration of wideband radios and antennas using a narrowband channel 有权
标题翻译：使用窄带通道校准宽带无线电和天线
公开(公告)号：US07039016B1
公开(公告)日：2006-05-02
申请号：US09967127
申请日：2001-09-28
申请人： Erik D. Lindskog , Mitchell D. Trott
发明人： Erik D. Lindskog , Mitchell D. Trott
IPC分类号： H04Q7/34
CPC分类号： H01Q3/267 , H04W24/00
摘要： A method and apparatus are provided that calibrate a wideband radio communications system without causing significant interference with simultaneous users of the system. In one embodiment, the invention includes an antenna array adapted to transmit and receive radio communications signals with a plurality of other terminals the communications signals each using a particular minimum bandwidth. A transmit chain transmits a calibration signal through the antenna array to a transponder, and a receive chain receives through the antenna array a transponder signal from the transponder, the transponder signal being based on the calibration signal and having a bandwidth narrower than the minimum bandwidth. A signal processor measures characteristics of the transponder signal as received through the receive chain. These can be used to determine spatial signatures and to calibrate the transmit chain and the receive chain.
摘要翻译：提供了一种校准宽带无线电通信系统而不对系统的同时用户造成显着干扰的方法和装置。在一个实施例中，本发明包括天线阵列，其适于与多个其他终端发送和接收每个使用特定最小带宽的通信信号的无线电通信信号。发射链通过天线阵列将校准信号发送到应答器，并且接收链通过天线阵列接收来自应答器的应答器信号，应答器信号基于校准信号并且具有比最小带宽窄的带宽。信号处理器测量通过接收链接收的应答器信号的特性。这些可用于确定空间签名并校准传输链和接收链。

8. 发明授权

US07036067B2 Error detection for multi-stream communications 失效
标题翻译：多流通信的错误检测
公开(公告)号：US07036067B2
公开(公告)日：2006-04-25
申请号：US10402717
申请日：2003-03-28
申请人： Pulakesh Roy , Tibor Boros , Veerendra Bhora
发明人： Pulakesh Roy , Tibor Boros , Veerendra Bhora
IPC分类号： H03M13/00
CPC分类号： H04L1/0059 , H03M13/091 , H04L1/0061
摘要： According to an embodiment of the invention, a method and apparatus are described for error detection for multi-stream communication. Under an embodiment of the invention, a method for producing an error word for a data stream comprises computing an intermediate error word for each of a plurality of data sub-streams, the data stream being equivalent to a concatenation of the plurality of data sub-streams; and combining the intermediate error words to produce the error word for the data stream.
摘要翻译：根据本发明的实施例，描述了一种用于多流通信的错误检测的方法和装置。在本发明的一个实施例中，一种用于产生数据流的错误字的方法包括：计算多个数据子流中的每一个的中间错误字，该数据流等效于多个数据子流的级联，溪流并组合中间错误字以产生数据流的错误字。

9. 发明授权

US07430606B1 Reducing certificate revocation lists at access points in a wireless access network 有权
标题翻译：在无线接入网络中的接入点减少证书吊销列表
公开(公告)号：US07430606B1
公开(公告)日：2008-09-30
申请号：US10689501
申请日：2003-10-17
申请人： Branislav Meandzija , Mithat C. Dogan , Marc Goldburg
发明人： Branislav Meandzija , Mithat C. Dogan , Marc Goldburg
IPC分类号： G06F15/16
CPC分类号： H04L63/0823 , H04L9/3268 , H04L2209/80 , H04W12/06
摘要： The certificate revocation lists at access points of a wireless access network can be reduced. In one embodiment, an Internet Service Provider (“ISP”) connected to the wireless access network can receive a subscription request from a user terminal capable of accessing the ISP using the wireless access network. When the ISP assigns a subscription identifier to the user terminal, it also provides a service certificate signed by a certificate authority including the subscription identifier. In addition, the ISP also provides the user terminal one or more session certificates to be used to access the wireless access network, where the session certificates having a shorter validity period than the service certificate.
摘要翻译：可以减少在无线接入网络的接入点处的证书吊销列表。在一个实施例中，连接到无线接入网络的因特网服务提供商（“ISP”）可以从能够使用无线接入网络访问ISP的用户终端接收订阅请求。当ISP向用户终端分配订阅标识符时，还提供由包括订阅标识符的认证机构签名的服务证书。另外，ISP还向用户终端提供要用于接入无线接入网络的一个或多个会话证书，其中会话证书具有比服务证书更短的有效期。

10. 发明授权

US07372911B1 Beam forming and transmit diversity in a multiple array radio communications system 有权
标题翻译：波束形成和多阵列无线电通信系统中的发射分集
公开(公告)号：US07372911B1
公开(公告)日：2008-05-13
申请号：US10187231
申请日：2002-06-28
申请人： Erik D. Lindskog , Mitchell D. Trott
发明人： Erik D. Lindskog , Mitchell D. Trott
IPC分类号： H04L1/02
CPC分类号： H04B7/0689 , H04B7/0617
摘要： A method and apparatus are provided for selecting transmission parameters for multiple transmit antenna arrays. In one embodiment, the invention includes receiving a signal from a remote radio, measuring the transmit coherency of the received signal, selecting, based on the transmit coherency, whether to apply coherent combining to signals transmitted to the remote radio using each of two transmit antenna arrays to each form a beam to coherently combine with each other beam upon receipt by the remote radio, selecting, based on the transmit coherency, whether to apply transmit diversity to signals transmitted to the remote radio using each of the two transmit antenna arrays as diversity antennas. The embodiment further includes determining signal transmission parameters to apply to the two antenna arrays for transmissions to the remote radio based on the selections, and transmitting a signal to the remote radio from the two transmit antenna arrays by applying the determined signal transmission parameters to the two transmit antenna arrays.
摘要翻译：提供一种用于选择多个发射天线阵列的传输参数的方法和装置。在一个实施例中，本发明包括从远程无线电接收信号，测量接收信号的发射一致性，基于发射一致性，选择是否使用两个发射天线中的每一个发射到远程无线电的信号应用相干组合阵列到每个形成一个波束，以便在被远程无线电接收时相互组合地彼此组合，基于发射一致性来选择是否使用两个发射天线阵列中的每一个发射到远程无线电的信号作为分集天线。该实施例还包括基于选择确定应用于两个天线阵列的信号传输参数以传输到远程无线电，并且通过将确定的信号传输参数应用于两个发射天线阵列，将信号从两个发射天线阵列发射到远程无线电装置发射天线阵列。

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