公开(公告)号：WO2005034409A2

公开(公告)日：2005-04-14

申请号：PCT/US2004032288

申请日：2004-10-01

Applicant: MOTOROLA INC ,  GORDAY PAUL E ,  CALLAWAY EDGAR HERBERT JR ,  MARTIN FREDERICK L ,  TAUBENHEIM DAVID B

Inventor： GORDAY PAUL E ,  CALLAWAY EDGAR HERBERT JR ,  MARTIN FREDERICK L ,  TAUBENHEIM DAVID B

IPC: H04B1/18 ,  H04B7/005 ,  H04J3/06 ,  H04J11/00 ,  H04J13/00 ,  H04L20060101 ,  H04L7/04 ,  H04L27/00 ,  H04L

CPC classification number: H04L27/0014 ,  H04L7/04 ,  H04L2027/0026 ,  H04L2027/0083 ,  H04W56/0035 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: A method (500) and system for compensation of frequency offset between a first transceiver (102) and a second transceiver (104) in wireless communication are disclosed. The compensation of the frequency offset between two or more transceivers (102, 104) is achieved using frequency synchronization bursts. These bursts contain information about the frequency offset. The frequency synchronization bursts are transmitted by the first transceiver at a range of frequencies above and below its carrier frequency (502). A second transceiver that receives at least one of these bursts (504) determines the frequency offset (504), and adjusts its frequency to match the frequency of the first transceiver (508). Thereafter, the second transceiver may enter a low power sleep mode (510) in order to reduce its power consumption. The second transceiver returns to active mode (512) just before the start of the transmission of the data packets (514).

Abstract translation: 公开了一种用于补偿无线通信中的第一收发器（102）和第二收发器（104）之间的频率偏移的方法（500）和系统。 两个或更多个收发机（102,104）之间的频率偏移的补偿是使用频率同步突发来实现的。 这些突发包含有关频率偏移的信息。 频率同步突发由第一收发器在高于和低于其载波频率的频率范围（502）处传送。 接收这些突发（504）中的至少一个的第二收发器确定频率偏移（504），并调整其频率以匹配第一收发器（508）的频率。 之后，第二收发器可以进入低功率睡眠模式（510）以便降低其功耗。 紧接在数据分组（514）的传输开始之前，第二收发器返回激活模式（512）。

公开(公告)号：WO2008070292A3

公开(公告)日：2008-07-31

申请号：PCT/US2007081590

申请日：2007-10-17

Applicant: MOTOROLA INC ,  TAUBENHEIM DAVID B ,  GORDAY PAUL E ,  CALLAWAY EDGAR H JR

Inventor： GORDAY PAUL E ,  CALLAWAY EDGAR H JR

IPC: H04B1/00

CPC classification number: H04B1/707 ,  H04L5/0007 ,  H04L5/0037 ,  H04L5/0058

Abstract: During operation of a node in a secondary communication system (100) data enters a spreader (301) and is appropriately spread. The spread data is then modulated onto all available channels using a multi-carrier OFDM modulation technique. This entails the spread data being modulated onto those channels that are currently being used by the primary communication system (120). Finally, a transmitter (303) transmits the spread data only over carriers that will not interfere with the primary communication system.

Abstract translation: 在次通信系统（100）中的节点的操作期间，数据进入扩展器（301）并且被适当地扩展。 然后使用多载波OFDM调制技术将扩展数据调制到所有可用信道上。 这需要将扩展​​数据调制到当前由主通信系统（120）使用的那些信道上。 最后，发射机（303）仅在不会干扰主通信系统的载波上发射扩展数据。

公开(公告)号：WO2005050890A3

公开(公告)日：2005-09-15

申请号：PCT/US2004036593

申请日：2004-11-03

Applicant: MOTOROLA INC ,  MARTIN FREDERICK L ,  CALLAWAY EDGAR H ,  GORDAY PAUL E ,  TAUBENHEIM DAVID B

Inventor： MARTIN FREDERICK L ,  CALLAWAY EDGAR H ,  GORDAY PAUL E ,  TAUBENHEIM DAVID B

IPC: H04B1/707 ,  H04L27/22 ,  H04B1/713 ,  H04B7/216

CPC classification number: H04L27/22 ,  H04B1/707 ,  H04B1/709 ,  H04B2201/70707

Abstract: A direct sequence spread spectrum (DSSS) receiver (100) consistent with certain embodiments has a frequency generator (112) that generates a local oscillator signal without use of a piezoelectric crystal. A frequency converter (108) receives the local oscillator signal and mixes the local oscillator signal with a received DSSS signal to produce a down-converted signal. The received DSSS signal is encoded using a first set of DSSS code. A differential chip detector (116) receives the down-converted signal and converts the down-converted signal to a differentially detected signal. A correlator (120) receives the differentially detected signal and correlates the detected signal with a set of DSSS codes that are time-shifted from the first set of DSSS codes. This abstract is not to be considered limiting, since other embodiments may deviate from the features described in this abstract.

Abstract translation: 与某些实施例一致的直接序列扩频（DSSS）接收机（100）具有在不使用压电晶体的情况下产生本地振荡器信号的频率发生器（112）。 变频器（108）接收本地振荡器信号，并将本地振荡器信号与接收到的DSSS信号进行混频，产生下变频信号。 接收的DSSS信号使用第一组DSSS码进行编码。 差分芯片检测器（116）接收下变频信号，并将下变频信号转换成差分检测信​​号。 相关器（120）接收差分检测信​​号，并将检测到的信号与从第一组DSSS码进行时移的一组DSSS码进行相关。 该摘要不被认为是限制性的，因为其它实施例可能偏离本摘要中描述的特征。

公开(公告)号：WO2005039196B1

公开(公告)日：2005-09-01

申请号：PCT/US2004032510

申请日：2004-10-01

Applicant: MOTOROLA INC ,  GORDAY PAUL E ,  CALLAWAY JR EDGAR HERBERT ,  MARTIN FREDERICK L ,  SHI QICAI

Inventor： GORDAY PAUL E ,  CALLAWAY JR EDGAR HERBERT ,  MARTIN FREDERICK L ,  SHI QICAI

IPC: H04B1/40 ,  H04L27/00 ,  H04B1/30 ,  H03D1/22 ,  H04L27/16

CPC classification number: H04B1/406 ,  H04L2027/0065

Abstract: The present invention provides a multimode receiver design for mitigation of frequency offset by selective demodulation of an input modulated signal. The receiver (103) comprises a plurality of demodulators (207). Each of the plurality of demodulators (207) has the same functionality but different receiver sensitivity versus frequency-offset mitigation characteristics. Each of these demodulators incorporates a different demodulation technique. A suitable demodulator is selected to demodulate the received signal. The choice of a suitable demodulator is based on the value of the frequency offset (305, 307).

Abstract translation: 本发明提供了用于通过对输入调制信号进行选择性解调来减轻频率偏移的多模式接收机设计。 接收器（103）包括多个解调器（207）。 多个解调器（207）中的每一个具有相同的功能，但是与频率偏移减轻特性相比，不同的接收器灵敏度。 这些解调器中的每一个都包含不同的解调技术。 选择合适的解调器来解调接收到的信号。 选择合适的解调器是基于频率偏移的值（305,307）。

公开(公告)号：WO2004061576A3

公开(公告)日：2005-02-17

申请号：PCT/US0338869

申请日：2003-12-04

Applicant: MOTOROLA INC

Inventor： GORDAY PAUL E ,  GORDAY ROBERT M ,  SIBECAS SALVADOR

IPC: G06F20060101 ,  H04B1/38 ,  H04B7/26 ,  H04L12/28 ,  H04W4/12 ,  H04W84/00 ,  H04W84/12

CPC classification number: H04W4/12 ,  H04W84/005 ,  H04W84/12

Abstract: A WLAN communication system (10) and method employs mobile WLAN base stations (16) that include WLAN transceivers (26) and memory (30) for storing received messages from one or more mobile WLAN devices (12a-12n). The mobile WLAN base stations (16) serve as moving message carriers or message repeaters of messages for the mobile WLAN devices. In one embodiment, a mobile WLAN base station (16) receives messages transmitted by several mobile WLAN devices (12a-12n), temporarily stores the received messages, and delivers the stored messages to a fixed WLAN base station or another mobile WLAN base station when the mobile WLAN base station (16) moves to within communication range of the applicable fixed or other mobile WLAN base station.

Abstract translation: WLAN通信系统（10）和方法采用移动WLAN基站（16），其包括用于存储来自一个或多个移动WLAN设备（12a-12n）的接收到的消息的WLAN收发器（26）和存储器（30）。 移动WLAN基站（16）用作用于移动WLAN设备的消息的移动消息载体或消息中继器。 在一个实施例中，移动WLAN基站（16）接收由多个移动WLAN设备（12a-12n）发送的消息，临时存储所接收的消息，并且将存储的消息传递到固定WLAN基站或另一移动WLAN基站， 移动WLAN基站（16）移动到可应用的固定或其他移动WLAN基站的通信范围内。

公开(公告)号：EP1540866A4

公开(公告)日：2010-06-09

申请号：EP03788321

申请日：2003-08-05

Applicant: MOTOROLA INC

Inventor： D AMICO THOMAS VICTOR ,  SIMPSON FLOYD D ,  GORDAY PAUL E

IPC: H04L1/16 ,  H04L1/18 ,  H04B7/26 ,  H04L1/00 ,  H04L1/20 ,  H04L12/28 ,  H04L12/56 ,  H04L29/08

CPC classification number: H04L1/1893 ,  H04L1/02

Abstract: A wireless communication network (100) employs a method and apparatus for reliably communicating information packets in the network. A first wireless device (101) in the network transmits an information packet to a second wireless device (e.g., 102) in the network over a first wireless communication channel (403, 404). The first device then determines whether the information packet was successfully received (e.g., received without errors) by the second device. If the information packet was not successfully received, the first device retransmits the information packet to the second device over a second wireless communication channel (405, 406). In addition, and preferably substantially contemporaneous with retransmission of the first information packet, the first device transmits a second information packet to the second device over the first channel in an effort to communicate an information sequence to the second device without delays typically associated with use of a reliable protocol.

Abstract translation: 一种无线通信网络（100）中利用下述网络中进行通信可靠的信息分组的方法和装置。 网络中的第一无线设备（101）在第一无线通信信道（403,404）发送到信息包发送到网络中的第二无线设备（例如，102）。 第一设备然后bestimmt是否信息分组被成功地接收（E. G.，接收没有错误）由所述第二设备。 如果它不能成功地接收到的信息包中，第一设备重发通过第二无线通信信道（405，406）中的信息包发送到第二设备。 此外，优选基本上与所述第一信息分组的重发的同期，所述第一设备发送第二信息分组在所述第一信道的第二装置中，而无需通常与使用的相关联的延迟，以信息序列传送到所述第二设备的努力 一个可靠的协议。

公开(公告)号：EP1377910A4

公开(公告)日：2009-08-05

申请号：EP02728648

申请日：2002-04-02

Applicant: MOTOROLA INC

Inventor： SIBECAS SALVADOR ,  GORDAY PAUL E ,  GORDAY ROBERT M ,  EATON ERIC T

IPC: G06F9/50 ,  H04L12/28 ,  H04B7/26 ,  H04L12/56 ,  H04L29/06 ,  H04L29/08

CPC classification number: H04L29/06 ,  H04L67/04 ,  H04L67/32 ,  H04L69/329 ,  H04W84/12 ,  H04W84/18

Abstract: A system (10) for dynamic process assignment among a plurality of devices (40) includes an initial coordinator (38), a requesting device (60), and a resource device (62). The initial coordinator (38) includes a list of available resources (56) for each device of the plurality of devices (40). The requesting device (60) requests the use of a desired resource. In response to the request from the requesting device (60), the initial coordinator (38) identifies an available resource associated with one of the plurality of devices (40) for use by the requesting device (60) as the desired resource.