专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008085594A2 SYSTEM AND METHOD FOR DEMODULATING DATA IN AN ORTHOGONAL FREQUENCY DIVISION MODULATION SYSTEM 审中-公开
标题翻译：用于在正交频分调制系统中解调数据的系统和方法
公开(公告)号：WO2008085594A2
公开(公告)日：2008-07-17
申请号：PCT/US2007083119
申请日：2007-10-31
申请人： MOTOROLA INC , FRANK COLIN D , CONRAD ALAN P , CORKE ROBERT J , SEOANE JORGE L
发明人： FRANK COLIN D , CONRAD ALAN P , CORKE ROBERT J , SEOANE JORGE L
IPC分类号： H04Q7/00
CPC分类号： H04L27/2662 , H04L25/0212 , H04L25/022 , H04L25/0228 , H04L27/2675
摘要： First incoming data comprising at least one OFDM symbol is received (302). A plurality of timing relationships is determined and each of the plurality of timing relationships relates to an alignment window of a fast Fourier transform (FFT) (304). Each of the plurality of timing relationships is applied to the first incoming data (306) and a plurality of achievable interference metrics associated with the first incoming data is responsively determined (308). Each of the plurality of achievable interference metrics is associated with a selected one of the plurality of timing relationships. The preferred interference metric is chosen from amongst the plurality of achievable interference metrics.
摘要翻译：包括至少一个OFDM符号的第一输入数据被接收（302）。确定多个定时关系并且多个定时关系中的每一个与快速傅立叶变换（FFT）的对准窗口相关（304）。多个定时关系中的每一个被应用于第一输入数据（306），并响应地确定与第一输入数据相关联的多个可实现的干扰度量（308）。多个可实现的干扰度量中的每一个与多个定时关系中的选定的一个关联。优选的干扰度量是从多个可实现的干扰度量中选择的。

2. 发明申请

WO2006039098A3 A METHOD FOR THE SELECTION OF FORWARD ERROR CORRECTION (FEC)/ CONSTELLATION PAIRINGS FOR DIGITAL TRANSMITTED SEGMENTS BASED ON LEARNING RADIO LINK ADAPTATION (RLA) 审中-公开
标题翻译：基于学习无线电链路适配（RLA）的数字传输段选择前向纠错（FEC）/信号配对方法
公开(公告)号：WO2006039098A3
公开(公告)日：2006-06-08
申请号：PCT/US2005032666
申请日：2005-09-14
申请人： MOTOROLA INC , ALAZRAKI SCOTT M , CHAUDHRI APOORV , CONRAD ALAN P , JELAVIC STANKO , LAMPERT CHET A , LOGALBO BOB D , STOGNER DARRELL J , PINDER ELLIS A
发明人： ALAZRAKI SCOTT M , CHAUDHRI APOORV , CONRAD ALAN P , JELAVIC STANKO , LAMPERT CHET A , LOGALBO BOB D , STOGNER DARRELL J , PINDER ELLIS A
IPC分类号： H04M3/18
CPC分类号： H04L1/0019 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/1867
摘要： A method for the selection of forward error correction (FEC)/ constellation pairings (800) for digital transmitted segments based on learning radio link adaptation (RLA) including formatting a packet transmission having a predetermined number of information bits (801). The packet is then split into a plurality of segments (803) where an RLA is used (805) to determine the optimum format of the packet. The plurality of segments is then sent to a channel encoder for FEC encoding and symbol mapping (807) at a rate selected by the RLA. The segments are then formatted into packet blocks (809) and transmitted in blocks that form a time slot at a constant symbol rate.
摘要翻译：一种用于基于学习无线电链路自适应（RLA）来选择用于数字传输段的前向纠错（FEC）/星座配对（800）的方法，包括格式化具有预定数目的信息比特的分组传输（801）。然后将分组分解成多个段（803），其中使用RLA（805）以确定分组的最佳格式。然后将多个段以由RLA选择的速率发送到用于FEC编码和符号映射（807）的信道编码器。然后，这些段被格式化成分组块（809），并以以恒定符号速率形成时隙的块传输。

3. 发明申请

WO2004095721A3 IMPROVED ADJUSTMENT VALUE FOR INBOUND TIME-SLOTTED TRANSMISSIONS 审中-公开
标题翻译：改进的时间间隔传输的调整值
公开(公告)号：WO2004095721A3
公开(公告)日：2005-03-03
申请号：PCT/US2004007535
申请日：2004-03-11
申请人： MOTOROLA INC , LOGALBO ROBERT D , CONRAD ALAN P , STOGNER DARRELL J
发明人： LOGALBO ROBERT D , CONRAD ALAN P , STOGNER DARRELL J
IPC分类号： H04L12/56 , H04J3/06
CPC分类号： H04W56/004 , H04W56/006 , H04W56/007
摘要： A subscriber (1001) provides a cumulative adjustment value in memory. Upon transmission of the inbound signal to a base station (102), the subscriber (1001) receives a relative adjustment value. The base station (102) calculates the relative adjustment value based on receipt of the inbound signal against a time window. The subscriber (1001) sums the adjustment value with the cumulative adjustment value to create a new cumulative adjustment value. The subscriber (1001) stores the new cumulative adjustment value in memory, and a subsequent inbound signal is transmitted using the new cumulative adjustment value. Alternatively, the subscriber (1001) obtains a priori information as to when a base station (102) transmits a burst. Upon receipt of the burst, the subscriber (1001) calculates a time delay between when the burst was transmitted and when the burst was received. The subscriber (1001) stores the time delay, and advances the transmission timing by the time delay.
摘要翻译：订户（1001）在存储器中提供累积调整值。在将入站信号发送到基站（102）时，订户（1001）接收相对调整值。基站（102）基于对时间窗口的入站信号的接收来计算相对调整值。订户（1001）将调整值与累积调整值相加以创建新的累积调整值。订户（1001）将新的累积调整值存储在存储器中，并且使用新的累积调整值发送后续的入站信号。或者，订户（1001）获得关于基站（102）何时发送突发的先验信息。在接收到突发之后，用户（1001）计算在发送突发和接收到突发之间的时间延迟。用户（1001）存储时间延迟，并且将发送定时提前时间延迟。

4. 发明专利

DE10295696B4 未知
公开(公告)号：DE10295696B4
公开(公告)日：2007-11-29
申请号：DE10295696
申请日：2002-01-11
申请人： MOTOROLA INC
发明人： LOGALBO ROBERT D , CONRAD ALAN P , DERTZ GREGORY A , HIBEN BRADLEY M , NEWBERG DONALD G
IPC分类号： H04J3/16 , H04J3/22 , H04L1/00 , H04L1/16 , H04L1/18 , H04L12/56
摘要： A slot format and acknowledgment method for use in a communication network that contains one or more wireless links. The slot format provides for the segmenting and reassembly of packets for transport over a wireless link. It also provides support for multiple types of service for the data being carried over the wireless link as well as allocating of access to the wireless link among a plurality of communication units. The acknowledgment method provides for detection of errors over the wireless link, the selective acknowledgment of error-free transmissions and the selective resending of transmissions received in error.

5. 发明专利

GB2397732B Method for assigning inbound transmissions with minimal signalling overhead 未知
公开(公告)号：GB2397732B
公开(公告)日：2005-11-16
申请号：GB0402709
申请日：2003-05-07
申请人： MOTOROLA INC
发明人： CONRAD ALAN P , HIBEN BRADLEY M , LOGALBO ROBERT D , STOGNER DARRELL J
IPC分类号： H04B7/26 , H04L12/56
摘要： In an outbound transmission ( 300 ), an address of a first subscriber unit assigned to transmit in a first inbound slot is identified. With one bit in the outbound transmission ( 300 ), an additional inbound slot the first subscriber unit is assigned to transmit is identified.

6. 发明专利

AU2003223697A1 METHODS FOR SEQUENCING DATAGRAM TRANSMISSIONS 未知
公开(公告)号：AU2003223697A1
公开(公告)日：2003-12-19
申请号：AU2003223697
申请日：2003-04-23
申请人： MOTOROLA INC
发明人： STOGNER DARRELL JAMES , CONRAD ALAN P , LAMPERT CHET A , LOGALBO ROBERT D
IPC分类号： H04L12/56 , H04J3/02 , H04Q11/04 , G06F13/00
摘要： Methods for sequencing datagram transmissions are disclosed, including, receiving an unqueued segment to be enqueued in a queue. The queue comprises at least one segment. Determining a priority level and a number of attempted transmissions for the unqueued segment ( 100 ). If the unqueued segment is enqueued in front of a segment belonging to a datagram in the queue, and at least one segment belonging to the datagram has been transmitted before all the segments belonging to the datagram have been transmitted, at least one of the following functions is performed: discarding any remaining segments belonging to the datagram in the queue, transmitting any remaining segments belonging to the datagram in the queue, and re-enqueuing segments belonging to the datagram at the same location in the queue as the partially transmitted datagram, but with a different identifier.

7. 发明专利

AU2002237728A1 Method and apparatus for organizing and scheduling multimedia data transfers over a wireless channel 未知
公开(公告)号：AU2002237728A1
公开(公告)日：2002-07-30
申请号：AU2002237728
申请日：2001-12-18
申请人： MOTOROLA INC
发明人： NEWBERG DONALD G , BEKIARES TYRONE D , CONRAD ALAN P , PRESTON JOHN B , LOGALBO ROBERT D , DERTZ GREGORY A
IPC分类号： H04J3/06 , H04L12/56 , H04B7/212
摘要： A radio frequency communications system ( 100 ) includes wireless terminals ( 102 ) and base sites ( 104 ). The wireless terminals communicate with the base sites over a radio frequency channel ( 106 ). The base sites are interconnected to each other and other network elements via a packet network. The communication system has a radio frequency channel ( 400 ) with time slots ( 406, 408 ) for transmission of both delay-sensitive data, such as streaming audio and video, and non-delay-sensitive data. A method and apparatus are provided for determining whether a time slot in the radio frequency channel is to be allocated to delay-sensitive data or non-delay-sensitive data ( 704, 706, 708 ). Each packet of data transmitted over the wireless channel has a type of service field ( 900 ). The type of service field has a precedence or priority value ( 902 ) and a service type ( 904 ). The priority values are used to determine which packet should be transmitted across the radio frequency channel next and the service type determines the transmission protocol.

8. 发明专利

GB2393885B Methods of addressing and signalling a plurality of subscriber units in a single slot 未知
公开(公告)号：GB2393885B
公开(公告)日：2004-12-22
申请号：GB0403053
申请日：2003-05-07
申请人： MOTOROLA INC
发明人： LOGALBO ROBERT D , CONRAD ALAN P , STOGNER DARRELL J , ANDERSON JEFFREY S
IPC分类号： H04B7/26 , H04J3/00 , H04B7/212 , H04J3/24 , H04Q7/00

9. 发明专利

AU2003296304A1 METHOD FOR ALLOCATING CHANNEL RESOURCES IN A DISTRIBUTED CONTROL CHANNEL SYSTEM 未知
公开(公告)号：AU2003296304A1
公开(公告)日：2004-06-30
申请号：AU2003296304
申请日：2003-12-08
申请人： MOTOROLA INC
发明人： JELAVIC STAN , STOGNER DARRELL JAMES , LOGALBO ROBERT D , ALAZRAKI SCOTT M , CHAUDHRI APOORV , CONRAD ALAN P
IPC分类号： H04J3/16 , H04W72/04 , H04W72/12
摘要： An outbound message (200) identifies a slot type associated with each timeslot in a scheduling period. In one embodiment, the outbound message further identifies at least an address of a first subscriber group assigned to transmit in a first timeslot (206) if the slot type of the first timeslot is of a first type and an address of a second subscriber group assigned to transmit in a second timeslot (208) if the slot type of the second timeslot is of a second type, wherein the first type and the second type could be the same or different. In a second embodiment, the outbound message further identifies at least a group address associated with a plurality of subscriber units assigned to transmit in a first timeslot if the slot type of the first timeslot is of a first type. In yet a third embodiment, the outbound message further identifies an address of a first subscriber group assigned to transmit in a first timeslot if the slot type of the first timeslot is of the first type, and a second timeslot (210) of a second type.

10. 发明专利

AU2003235511A1 METHOD FOR ASSIGNING INBOUND TRANSMISSIONS WITH MINIMAL SIGNALING OVERHEAD 未知
公开(公告)号：AU2003235511A1
公开(公告)日：2003-12-22
申请号：AU2003235511
申请日：2003-05-07
申请人： MOTOROLA INC
发明人： CONRAD ALAN P , HIBEN BRADLEY M , LOGALBO ROBERT D , STOGNER DARRELL J
IPC分类号： H04B7/26 , H04L12/56
摘要： In an outbound transmission ( 300 ), an address of a first subscriber unit assigned to transmit in a first inbound slot is identified. With one bit in the outbound transmission ( 300 ), an additional inbound slot the first subscriber unit is assigned to transmit is identified.

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