公开(公告)号：EP0985285A4

公开(公告)日：2003-09-03

申请号：EP98945928

申请日：1998-09-04

Applicant: MOTOROLA INC

Inventor： CASSIDY MARC ,  MACDONALD DANIEL J ,  EKL RANDY L

IPC: H04W4/08 ,  H04W74/04 ,  H04B7/26 ,  H04Q7/38

CPC classification number: H04W4/08 ,  H04W74/04

Abstract: A method of registration in a communication system includes the steps of detecting (201) an elevated registration level of at least a part of a communication system, selecting (203) a group recovery time, determining (205) a first random registration time that is less than or equal to the group recovery time, registering (209) a first communication unit (111) from a first talkgroup at the first random registration time, and upon receiving (212) a group activity message for the first talkgroup, delaying (213) registration by at least a second communication unit (113) from the first talkgroup.

公开(公告)号：EP1714257A4

公开(公告)日：2008-09-03

申请号：EP04814970

申请日：2004-12-21

Applicant: MOTOROLA INC

Inventor： WARE CHRISTOPHER ,  EKL RANDY L ,  RAKOTOARIVELO THIERRY

IPC: G08B1/00 ,  H04L12/28 ,  H04L12/56 ,  H04W4/10 ,  H04W72/12 ,  H04W74/06 ,  H04W84/12

CPC classification number: H04W72/005 ,  H04W4/10 ,  H04W72/1278 ,  H04W74/06 ,  H04W76/005 ,  H04W84/12

Abstract: A method and system for scheduling multicast transmissions in a WLAN involves transmissions between a Quality of Service (QoS) Access Point (QAP) ( 105 ) and a plurality of stations ( 110 ). The method includes transmitting a first group poll ( 410 ) from a QAP ( 105 ) to each station ( 110 ) in a multicast group comprising a plurality of stations ( 110 ) (step 705 ). An active station ( 110 ) and inactive stations ( 110 ) among said plurality of stations ( 110 ) are then identified (step 510 ). Next, a directed Contention Free (CF) poll ( 425 ) is transmitted from the QAP ( 105 ) to the active station ( 110 ) (step 715 ). An inbound QoS data frame ( 415 ) is then transmitted from the active station ( 110 ) to the QAP ( 105 ) (step 720 ). An outbound QoS data frame ( 420 ) corresponding to the inbound QoS data frame ( 415 ) is then multicast from the QAP ( 105 ) to the inactive stations ( 110 ) (step 725 ).

公开(公告)号：DE10393348T5

公开(公告)日：2005-10-06

申请号：DE10393348

申请日：2003-09-24

Applicant: MOTOROLA INC

Inventor： ROTSTEIN RON ,  EKL RANDY L ,  JOHNSON MARK J

IPC: H04L1/00 ,  H04B1/38 ,  H04L5/16

Abstract: A first device (102/104) receives a first message (300) from a second device (104/102) over a communication link (106). The first device also receives a first transmit power level (202/212) by which the first message was transmitted and a first interference level (204/208) as perceived by the second device. The first device calculates at least one transmission parameter by which a second message will be transmitted to the second device based on the first transmit power level and the first interference level.

公开(公告)号：AU2003297829A8

公开(公告)日：2004-07-29

申请号：AU2003297829

申请日：2003-12-09

Applicant: MOTOROLA INC

Inventor： ROTSTEIN RON ,  EKL RANDY L

IPC: H04L12/28 ,  H04J3/16

Abstract: A communication band is divided into a plurality of allocation channels ( 202, 204, 206, 208 ). At least one allocation channel ( 204 ) is transferred to a transform domain. The behavior of the at least one allocation channel is monitored in the transform domain in order to derive a set of statistics. The set of statistics are used to determine a channel category for the at least one allocation channel.

公开(公告)号：CA2508567A1

公开(公告)日：2004-07-22

申请号：CA2508567

申请日：2003-12-09

Applicant: MOTOROLA INC

Inventor： EKL RANDY L ,  ROTSTEIN RON ,  JOHNSON MARK J

IPC: H04L25/02 ,  H04L25/03 ,  H03K5/159

Abstract: In a system that uses equalization signaling to determine at least one equalization parameter representative of at least one property of a channel, a signal is received on the channel. A rate of change of the at least one property of the channel is estimated. Based on the rate of change of the at least one property of the channel, the equalization signaling is adjusted.

公开(公告)号：AU2003286662A1

公开(公告)日：2004-05-25

申请号：AU2003286662

申请日：2003-10-22

Applicant: MOTOROLA INC

Inventor： EKL RANDY L ,  ROTSTEIN RON

IPC: H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04L29/06 ,  H04L29/08

Abstract: At a first device ( 102 or 104 ), a message is received and processed. If the message is processed during a first time period, the first device transmits an acknowledgement message during a second time period; otherwise the first device transmits the acknowledgment message during a third time period. The second time period and the third time period are exclusive of each other.

公开(公告)号：AU6993301A

公开(公告)日：2002-01-02

申请号：AU6993301

申请日：2001-06-19

Applicant: MOTOROLA INC

Inventor： MCDONALD DANIEL J ,  CASSIDY MARC ,  EKL RANDY L ,  MISTRO JOHN ,  LOVEN ERICK

IPC: H04W4/08 ,  H04W48/06 ,  H04W74/04

Abstract: A method of registration in a communication system includes the steps of detecting (201) an elevated registration level of at least a part of a communication system, selecting (203) a group recovery time, determining (205) a first random registration time that is less than or equal to the group recovery time, registering (209) a first communication unit (111) from a first talkgroup at the first random registration time, and upon receiving (212) a group activity message for the first talkgroup, delaying (213) registration by at least a second communication unit (113) from the first talkgroup.

公开(公告)号：AU716183B2

公开(公告)日：2000-02-24

申请号：AU9306498

申请日：1998-09-04

Applicant: MOTOROLA INC

Inventor： CASSIDY MARC ,  MACDONALD DANIEL J ,  EKL RANDY L

IPC: H04W4/08 ,  H04W74/04 ,  H04B7/26

Abstract: A method of registration in a communication system includes the steps of detecting (201) an elevated registration level of at least a part of a communication system, selecting (203) a group recovery time, determining (205) a first random registration time that is less than or equal to the group recovery time, registering (209) a first communication unit (111) from a first talkgroup at the first random registration time, and upon receiving (212) a group activity message for the first talkgroup, delaying (213) registration by at least a second communication unit (113) from the first talkgroup.

公开(公告)号：WO2008002720A3

公开(公告)日：2008-11-13

申请号：PCT/US2007068015

申请日：2007-05-02

Applicant: MOTOROLA INC ,  PANDEY APARNA ,  EKL RANDY L ,  WARE CHRISTOPHER G

Inventor： PANDEY APARNA ,  EKL RANDY L ,  WARE CHRISTOPHER G

IPC: H04B7/00 ,  H04W16/24 ,  H04W36/08 ,  H04W48/16

CPC classification number: H04W48/12 ,  H04W16/24 ,  H04W36/08

Abstract: A method for communicating beacon transmissions from a wireless access point (WAP) to a client transceiver in a wireless local area network (WLAN) system (figure 1) includes obtaining a reference timing for the wireless access point. The sector configuration and the sector timing in the WAP is then determined. A virtual target beacon transmission time (TBTT) for the sector of interest serviced by the WAP is then calculated, as is a channel number of the sector of interest Finally, the method provides for listening for a sector beacon signal from the sector of interest at the virtual TBTT and the calculated channel number.

Abstract translation: 一种用于在无线局域网（WLAN）系统中从无线接入点（WAP）向客户收发信机传送信标传输的方法（图1）包括获得无线接入点的参考定时。 然后确定WAP中的扇区配置和扇区时序。 然后计算由WAP服务的感兴趣扇区的虚拟目标信标传输时间（TBTT），以及感兴趣扇区的信道号。最后，该方法提供了从感兴趣的扇区收听扇区信标信号 虚拟TBTT和计算的通道号。

公开(公告)号：WO2006047065B1

公开(公告)日：2006-11-23

申请号：PCT/US2005036157

申请日：2005-10-05

Applicant: MOTOROLA INC ,  PANDEY APARNA ,  EKL RANDY L ,  WARE CHRISTOPHER G

Inventor： PANDEY APARNA ,  EKL RANDY L ,  WARE CHRISTOPHER G

IPC: G06F15/16 ,  G06F15/173 ,  H04J3/24 ,  H04L12/43

CPC classification number: H04W40/246 ,  H04W48/08 ,  H04W84/12

Abstract: A method for performing neighbor discovery in a multi-tier wireless local area network where a client creates a neighbor list identifying a neighbor wherein the neighbor is identified as an access point or a client. Then, the client determines a time to perform a scan of neighbors based upon 1) a type of neighbor discovery to be performed and 2) when a first beacon is transmitted by an access point in a first tier of the multi-tier wireless local area network. Subsequently, the client performs a scan of neighbors at the determined time on a channel associated with the type of neighbor discovery. Finally, the client receives a beacon sent from a neighbor of the client to update the neighbor list with information transmitted in the beacon.

Abstract translation: 一种用于在多层无线局域网中执行邻居发现的方法，其中客户端创建标识邻居的邻居列表，其中邻居被标识为接入点或客户端。 然后，客户端基于1）要执行的邻居发现的类型和2）当第一信标由多层无线局域的第一层中的接入点传输时确定执行邻居扫描的时间 网络。 随后，客户端在确定的时间在与邻居发现类型相关联的信道上执行邻居扫描。 最后，客户端接收从客户端的邻居发送的信标，以利用在信标中传输的信息来更新邻居列表。