公开(公告)号：MX9102390A

公开(公告)日：1992-06-01

申请号：MX9102390

申请日：1991-12-05

Applicant: MOTOROLA INC

Inventor： CRISLER KENNETH J ,  HIBEN BRADLEY M ,  HEUVEL ANTHONY VAN DEN

IPC: H04J3/12 ,  H04J3/16 ,  H04W16/00 ,  H04W28/16 ,  H04W74/04 ,  H04J1/00

Abstract: A time division multiplexed system is disclosed in which communication messages among a wide area site and a plurality of substantially scattered local sites are communicated on a radio frequency channel which is divided into a plurality of time slots, wherein at least one of the time slots is further divided into a plurality of subslots. Communication units operating in the wide area site communicate communication messages during the time slots, and the communication units operating in the local sites communicate communication messages during the subslots which are assigned to each of the local sites.

公开(公告)号：EP0577747A4

公开(公告)日：1995-03-22

申请号：EP92910328

申请日：1992-03-26

Applicant: MOTOROLA INC

Inventor： CRISLER KENNETH J ,  NEEDHAM MICHAEL L

IPC: H04J3/00 ,  H04B7/26 ,  H04J3/16 ,  H04L12/56 ,  H04W72/04 ,  H04W74/08 ,  H04J3/24

CPC classification number: H04W74/08 ,  H04B7/2646 ,  H04W72/0446

Abstract: A communication resource is subdivided as a function of time into a plurality of time slots (210), which may then be further subdivided on a non-periodic basis into a number of sub-slots (220). In a slot or sub-slot, communication units (101) may utilize the communication resource according to a specific set of access methods defined for that slot or sub-slot. In one embodiment the time slots are subdivided on a non-periodic basis into at least two random access sub-slots, during which communication units may either request one or more reserved time slots, or send unreserved data packets (240). In response to requests for reserved time slots from a requesting communication unit, one or more reserved time slots are provided for the use of the requesting communication unit.

公开(公告)号：EP0577780A4

公开(公告)日：1995-02-01

申请号：EP92917358

申请日：1992-03-26

Applicant: MOTOROLA INC

Inventor： CRISLER KENNETH J ,  NEEDHAM MICHAEL L

IPC: H04J3/00 ,  H04J3/16 ,  H04L12/407 ,  H04W84/08 ,  H04B7/212

CPC classification number: H04W84/08 ,  H04J3/1694 ,  H04L12/407 ,  H04L12/413

Abstract: A method of providing a communication unit (101) access to a shared communication resource. In the communication unit, a clock (123) is maintained, and the unit detects the time when an inhibit period on the shared communication resource begins, and the time at which it concludes. When access to the shared communication resource is desired, the unit attempts to access the communication resource based on the time at which access was desired, as well as the times at which a detected inhibit condition began and concluded. A virtual time clock runs only during non-inhibit periods. Access to the communication resource is then based on when the virtual time clock equals the desired access time.

公开(公告)号：EP0598888A4

公开(公告)日：1994-12-21

申请号：EP93914221

申请日：1993-06-01

Applicant: MOTOROLA INC

Inventor： WILSON TIMOTHY J ,  CRISLER KENNETH J

IPC: H04B7/005 ,  H04J3/16 ,  H04J3/17 ,  H04W28/26 ,  H04W52/50 ,  H04W72/04 ,  H04W74/00 ,  H04W76/06 ,  H04W84/08 ,  H04B1/00 ,  H04B7/00

CPC classification number: H04W72/005 ,  H04J3/17 ,  H04W28/26 ,  H04W52/50 ,  H04W72/04 ,  H04W76/06 ,  H04W84/08

Abstract: A radio communication system controller embodies the present invention by providing extended use (306) of a communication resource (106) to a plurality of communication units. The inventive method includes the steps of assigning (402) a first communication resource to a first communication unit, and then temporarily configuring (406) the assigned communication resource as a reserved resource. The controller then receives (408), from a second communication unit, a request to transmit a second communication on the assigned communication resource. Lastly, the controller re-configures (412) the assigned communication resource to allow transmission of the second communication on the assigned communication resource.

Abstract translation: 无线电通信系统控制器通过向多个通信单元提供通信资源（106）的扩展使用（306）来体现本发明。 本发明的方法包括以下步骤：向第一通信单元分配（402）第一通信资源，然后临时配置（406）分配的通信资源作为保留资源。 控制器然后从第二通信单元接收（408）在所分配的通信资源上发送第二通信的请求。 最后，控制器重新配置（412）分配的通信资源以允许在分配的通信资源上传输第二通信。

公开(公告)号：EP0577777A4

公开(公告)日：1994-06-15

申请号：EP92917297

申请日：1992-03-26

Applicant: MOTOROLA INC

Inventor： CRISLER KENNETH J ,  NEEDHAM MICHAEL L

IPC: H04J3/00 ,  H04B7/26 ,  H04J3/16 ,  H04L12/56 ,  H04W72/04 ,  H04W74/04 ,  H04W74/08 ,  H04J3/24

CPC classification number: H04W74/08 ,  H04B7/2659 ,  H04W72/0446 ,  Y10S370/913

Abstract: A communication resource is subdivided as a function of time into a plurality of time slots (210). These time slots are further subdivided on a non-periodic basis into at least two random access sub-slots (220), during which communication units (101) may request one or more reserved time slots (240). In response to such requests for reserved time slots from a requesting communication unit during one of the random access sub-slots, one or more reserved time slots are provided for use by the requesting communication unit.