公开(公告)号：WO1996004728A1

公开(公告)日：1996-02-15

申请号：PCT/US1995009567

申请日：1995-07-28

Applicant: MOTOROLA INC.

Inventor： MOTOROLA INC. ,  AYERST, Douglas, I. ,  BUDNIK, Brian, J. ,  KAHN, Malik, J.

IPC: H04J03/16

CPC classification number: H04W84/025 ,  H04W88/185

Abstract: A fixed system receiver (107), which includes a forward receiver (305), a reverse receiver (310), and a response timer (215), is for use in a radio communication system (100) having a forward radio channel and a reverse radio channel. A command is transmitted in a forward channel radio signal to a selective call transceiver. The forward receiver (305) is for receiving, demodulating, and decoding the command. The reverse receiver (310) is for receiving and demodulating the reverse channel radio signal. The response timer (215), which is coupled to the forward receiver (305) and the reverse receiver (310), is for determining a response period beginning substantially at a scheduled response time included in the command and having a duration which is substantially a designated length of the data unit included in the command, and for generating a control signal which enables the reverse receiver (310) during the response period.

Abstract translation: 包括正向接收器（305），反向接收器（310）和响应定时器（215）的固定系统接收器（107）用于具有正向无线电信道和无线电信道的无线电通信系统（100） 反向无线电频道。 在正向信道无线电信号中向命令收发器发送命令。 前向接收机（305）用于接收，解调和解码该命令。 反向接收机（310）用于接收和解调反向信道无线电信号。 耦合到正向接收器（305）和反向接收器（310）的响应定时器（215）用于确定基本上在包括在命令中的调度的响应时间开始的响应周期，并且具有基本为 包括在命令中的数据单元的指定长度，并且用于产生在响应周期期间使反向接收器（310）能够使能的控制信号。

公开(公告)号：WO1994016513A1

公开(公告)日：1994-07-21

申请号：PCT/US1993012634

申请日：1993-12-27

Applicant: MOTOROLA, INC.

Inventor： MOTOROLA, INC. ,  AYERST, Douglas, I. ,  CARSELLO, Stephen, R. ,  GLOTZBACH, Warren, P.

IPC: H04L27/30

CPC classification number: H04W16/12 ,  H04J13/16 ,  H04W16/02

Abstract: A communication system for providing two-way communication comprises base stations (15) for transmitting and receiving information and a central controller (10) coupled to and controlling the base stations (15). The central controller (10) selectively assigns seeds to each of the base stations (15) in accordance with the information transmitted and received by the base stations (15).

Abstract translation: 一种用于提供双向通信的通信系统包括用于发送和接收信息的基站（15）和耦合到并控制基站（15）的中央控制器（10）。 根据由基站（15）发送和接收的信息，中央控制器（10）有选择地向每个基站（15）分配种子。

公开(公告)号：EP0865709B1

公开(公告)日：2002-10-09

申请号：EP96938758.8

申请日：1996-11-04

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  GOODMAN, Robert, Gary ,  STARKWEATHER, James, A.

IPC: H04Q7/00 ,  H04Q7/12 ,  H04Q7/38

CPC classification number: H04W84/025 ,  H04W60/04 ,  H04W88/185

Abstract: A method for re-establishing communication between a base station (102) that transmits on a forward channel, and a subscriber unit (108) that has temporarily lost the forward channel, uses the concept of a re-registration interval. The base station (102) transmits, to subscriber units (106, 108) in its area, a signal indicating the duration of a re-registration interval. A subscriber unit that has temporarily lost the forward channel determines whether the duration of such loss exceeds the re-registration interval. If the interval is exceeded, the subscriber unit sends a re-registration signal to the base station on a reverse channel. A selective call transceiver (400) is programmed to operate as a subscriber unit that uses the re-registration interval.

公开(公告)号：EP1183879A1

公开(公告)日：2002-03-06

申请号：EP00926283.3

申请日：2000-04-20

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I.

IPC: H04Q7/00 ,  G08B5/22

CPC classification number: H04W84/022 ,  H04W16/32 ,  H04W28/08 ,  H04W60/00 ,  H04W68/00 ,  H04W68/10

Abstract: A method in a communication system (100) having at least a first and a second base stations (104, 108) for communicating with selective call devices (102) includes the steps of transmitting a first signal on a first frequency that indicates an alternate frequency and transmitting second signal on the alternate frequency indicated by the first signal. The second signal has a registration threshold for controlling registration of the selective call device (102) with the second base station (108).

公开(公告)号：EP0872042A1

公开(公告)日：1998-10-21

申请号：EP96909665.0

申请日：1996-03-11

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  MOORE, Morris

IPC: H04B7 ,  H04W88

CPC classification number: H04W88/185

Abstract: A technique for communicating global information in a radio communication system (100) in which a radio (106) is in a receive state during a first predetermined period of each of a plurality of transmission cycles (320) includes decoding (840) a global event indicator (344) in a system information portion (331) of the first predetermined period of a first transmission cycle (320), setting the radio (106) to the receive state during a second predetermined period, decoding global event information (880) in the second predetermined period, and processing the global event information. The second transmission cycle (320) is subsequent to the first transmission cycle (320).

公开(公告)号：EP0855127A1

公开(公告)日：1998-07-29

申请号：EP96929001.0

申请日：1996-08-23

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  KUZNICKI, William, Joseph ,  SCHWENDEMAN, Robert, John

IPC: H04W68 ,  H04W84

CPC classification number: H04W84/025 ,  H04W68/00

Abstract: A communication system (100) provides minimum transmission delay for message delivery to communication transceivers (510) includes a plurality of transmission cells (102, 104) which include one or more receivers (512) and a transmitter (506) and which define geographical transmission areas. The transmitter (506) transmits an address identifying the communication transceiver (510) for which a message is intended and a color code signal identifying the transmitter (506) during a first scheduled transmission time interval (212). At least one receiver (512) located within the transmission cells (102, 104) receives an acknowledgment signal including the address and color code signal generated by the communication transceiver (510) during a second scheduled transmission time interval (216). The transmitter (506) identified by the color code signal transmits the address and message during a transmission frame (110) designated by the color code signal during which time the address and message are received by the communication transceiver (510).

公开(公告)号：EP0780038A1

公开(公告)日：1997-06-25

申请号：EP96915556.0

申请日：1996-05-08

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  CANNON, Gregory ,  KHAN, Malik, J. ,  HILL, Rick, Alan

IPC: H04B7 ,  H04W84 ,  H04W88

CPC classification number: H04W84/025 ,  H04W52/267 ,  H04W88/022

Abstract: A system controller (102) is used in a communication system (100) which has a set of inbound channels. The system controller (102) includes a processing system (204) for generating a first message which is transmitted to selective call devices (106). The first message includes a subset identifier which identifies an ALOHA subset of the set of inbound channels for use by a set of the selective call devices (106). A selective call device (106) includes a transmitter (708) and a processing system (710). The processing system (710) identifies the ALOHA subset of the set of inbound channels, and generates a second message and couples the second message to the transmitter (708) using an ALOHA protocol on an inbound channel which is in the ALOHA subset of the set of inbound channels when the second message is a first type. The transmitter (708) transmits the second message.

公开(公告)号：EP1088459B1

公开(公告)日：2007-03-07

申请号：EP99925868.4

申请日：1999-05-26

Applicant: MOTOROLA, INC.

Inventor： OHEL, Hagai ,  AYERST, Douglas, I.

IPC: H04Q7/00 ,  H04B7/212 ,  G05B23/02

CPC classification number: H04W84/025

Abstract: A method for coordinating an inbound channel in a selective call communication system (100) includes the steps of encoding (702) an expected time for an inbound response and a number of bits in the inbound response with an outbound message requesting information from a selective call device; transmitting (704) the outbound message to the selective call device; allocating (706) an inbound channel; determining (708) the number of bits to be encoded in at least one time slot of the inbound channel; transmitting (710) the inbound channel, the number of bits to be transmitted in the at least one time slot to the selective call device; encoding (712) the information being requested on the inbound channel with the number of bits in the at least one time slot; and transmitting (714) the inbound response on the inbound channel with the number of bits specified for each of the at least one time slot.

公开(公告)号：EP0780038B1

公开(公告)日：2005-05-04

申请号：EP96915556.3

申请日：1996-05-08

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  CANNON, Gregory ,  KHAN, Malik, J. ,  HILL, Rick, Alan

IPC: H04B7/204 ,  H04B7/26 ,  H04J3/16 ,  H04L12/413 ,  H04Q7/06 ,  H04Q7/20

CPC classification number: H04W84/025 ,  H04W52/267 ,  H04W88/022

Abstract: A system controller (102) is used in a communication system (100) which has a set of inbound channels. The system controller (102) includes a processing system (204) for generating a first message which is transmitted to selective call devices (106). The first message includes a subset identifier which identifies an ALOHA subset of the set of inbound channels for use by a set of the selective call devices (106). A selective call device (106) includes a transmitter (708) and a processing system (710). The processing system (710) identifies the ALOHA subset of the set of inbound channels, and generates a second message and couples the second message to the transmitter (708) using an ALOHA protocol on an inbound channel which is in the ALOHA subset of the set of inbound channels when the second message is a first type. The transmitter (708) transmits the second message.

公开(公告)号：EP0775397A1

公开(公告)日：1997-05-28

申请号：EP95928188.0

申请日：1995-07-28

Applicant: MOTOROLA, INC.

Inventor： AYERST, Douglas, I. ,  BUDNIK, Brian, J. ,  KAHN, Malik, J.

IPC: H04J3 ,  H04W84 ,  H04W88

CPC classification number: H04W84/025 ,  H04W88/185

Abstract: A fixed system receiver (107), which includes a forward receiver (305), a reverse receiver (310), and a response timer (215), is for use in a radio communication system (100) having a forward radio channel and a reverse radio channel. A command is transmitted in a forward channel radio signal to a selective call transceiver. The forward receiver (305) is for receiving, demodulating, and decoding the command. The reverse receiver (310) is for receiving and demodulating the reverse channel radio signal. The response timer (215), which is coupled to the forward receiver (305) and the reverse receiver (310), is for determining a response period beginning substantially at a scheduled response time included in the command and having a duration which is substantially a designated length of the data unit included in the command, and for generating a control signal which enables the reverse receiver (310) during the response period.