公开(公告)号：DE4292564T1

公开(公告)日：1997-07-31

申请号：DE4292564

申请日：1992-06-08

Applicant: MOTOROLA INC

Inventor： SCHAEFFER DENNIS RAY ,  KOTZIN MICHAEL D

IPC: H04B7/26 ,  H04B7/005 ,  H04J4/00 ,  H04W36/16 ,  H04W52/50 ,  H04B7/204

Abstract: A communication system having a site employing a plurality of communication channels. Each channel is assigned a desired received signal strength threshold. A channel is assigned to a subscriber unit based upon the strength of the signal received at the site and the power control range of the subscriber unit. The selection of a channel may be performed either by the site or the subscriber unit. In an FDMA environment, each separate frequency division channel may be assigned different received signal strength thresholds. In a non-overlapping time interval (TDMA) environment, each separate time division channel may be assigned different received signal strength thresholds. In another embodiment, a combination of FDMA and TDMA environments can be used.

公开(公告)号：AU3414895A

公开(公告)日：1996-05-02

申请号：AU3414895

申请日：1995-08-25

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  BONTA JEFFREY D

IPC: H04M11/00 ,  G07F7/10 ,  H04M15/00 ,  H04M17/00 ,  H04W8/20 ,  H04W8/24 ,  H04W8/26 ,  H04W92/18

公开(公告)号：GB2290928B

公开(公告)日：1996-03-13

申请号：GB9513538

申请日：1992-06-08

Applicant: MOTOROLA INC

Inventor： SCHAEFFER DENNIS RAY ,  KOTZIN MICHAEL D

IPC: H04B7/005 ,  H04B7/26 ,  H04J4/00 ,  H04W52/50 ,  H04W72/06 ,  H04B7/00 ,  H04Q7/32

公开(公告)号：HU9502228D0

公开(公告)日：1995-10-30

申请号：HU9502228

申请日：1994-10-31

Applicant: MOTOROLA INC

Inventor： SCHAFFNER TERRY MICHAEL ,  KOTZIN MICHAEL D ,  VAN DEN HEUVEL ANTHONY P

IPC: H04L27/18 ,  H04B1/707 ,  H04L1/00 ,  H04L5/12

Abstract: A method and apparatus is provided for creating a composite waveform. This composite waveform is created by coding a plurality of input digital information signals. Subsequently, the plurality of coded input digital information signals are communicated over a communication medium to a digital combiner. The digital combiner combines the plurality of coded input digital information signals. Finally, the digitally combined information signal is spectrally shaped to form a composite waveform. These composite waveform creation principals may be applied to digitally encoded voice subbands in a subband coding system as well as channel information in a direct sequence code division multiple access (DS-CDMA) communication system transmitter.

公开(公告)号：AU663604B2

公开(公告)日：1995-10-12

申请号：AU4409393

申请日：1993-06-09

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  SPEAR STEPHEN L

IPC: H04B1/713 ,  H04B1/7136 ,  H04L27/30 ,  H04Q7/04

Abstract: A base-site (304) combines baseband frequency hopping and fast-synthesizer hopping to produce an economical frequency hopping communication system (300). The base-site (304) combines the fast-synthesizer frequency hopping capability of transmitters (307-309) with baseband frequency hopping to produce a frequency hopping communication system (300) which serves the same number of subscribers served by transmitters (208-213) in a purely baseband hopping communication system (200), but with fewer transmitters (307-309). The implementation of frequency-selective cavities (312-317) having very low loss eliminates the need for wideband hybrid combiners (112-114), which in turn eliminates transmitted-signal power loss experienced in a purely fast-synthesizer frequency hopping communication system (100).

公开(公告)号：DE69021733D1

公开(公告)日：1995-09-21

申请号：DE69021733

申请日：1990-12-11

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D

IPC: G06F11/08 ,  H04B7/26 ,  H04W88/18 ,  H04Q7/20

Abstract: A method characterized by distributing channel coding on either side of a limited capacity communication path (102) by partially channel coding (400) a signal at a first processing point (100) and communicating the partially coded signal over the communication path (102) to a second processing point (105). The partially coded signal is characterized by at least some but not all of the necessary coded bits. The channel coding algorithm is completed at the second processing point (105) using the communicated partially coded signal (401) thereby increasing throughput over the limited capacity path (102) while minimizing added delays.

公开(公告)号：FI953753A0

公开(公告)日：1995-08-07

申请号：FI953753

申请日：1995-08-07

Applicant: MOTOROLA INC

Inventor： SCHAFFNER TERRY MICHAEL ,  KOTZIN MICHAEL D ,  VAN DEN HEUVEL ANTHONY P

IPC: H04L27/18 ,  H04B1/707 ,  H04L1/00 ,  H04L5/12 ,  H04L

Abstract: A method and apparatus is provided for creating a composite waveform. This composite waveform is created by coding a plurality of input digital information signals. Subsequently, the plurality of coded input digital information signals are communicated over a communication medium to a digital combiner. The digital combiner combines the plurality of coded input digital information signals. Finally, the digitally combined information signal is spectrally shaped to form a composite waveform. These composite waveform creation principals may be applied to digitally encoded voice subbands in a subband coding system as well as channel information in a direct sequence code division multiple access (DS-CDMA) communication system transmitter.

公开(公告)号：FI953753A

公开(公告)日：1995-08-07

申请号：FI953753

申请日：1995-08-07

Applicant: MOTOROLA INC

Inventor： SCHAFFNER TERRY MICHAEL ,  KOTZIN MICHAEL D ,  VAN DEN HEUVEL ANTHONY P

IPC: H04L27/18 ,  H04B1/707 ,  H04L1/00 ,  H04L5/12 ,  H04L

Abstract: A method and apparatus is provided for creating a composite waveform. This composite waveform is created by coding a plurality of input digital information signals. Subsequently, the plurality of coded input digital information signals are communicated over a communication medium to a digital combiner. The digital combiner combines the plurality of coded input digital information signals. Finally, the digitally combined information signal is spectrally shaped to form a composite waveform. These composite waveform creation principals may be applied to digitally encoded voice subbands in a subband coding system as well as channel information in a direct sequence code division multiple access (DS-CDMA) communication system transmitter.

公开(公告)号：FI951784A0

公开(公告)日：1995-04-13

申请号：FI951784

申请日：1995-04-13

Applicant: MOTOROLA INC

Inventor： MEIDAN REUVEN ,  KOTZIN MICHAEL D ,  RABE DUANE CARL

IPC: H04L27/10 ,  F02B3/06 ,  F02F1/16 ,  F02F11/00 ,  H04B1/713 ,  H04B1/7156 ,  H04B7/208 ,  H04B7/26 ,  H04L27/18 ,  H04W48/12 ,  H04L

公开(公告)号：FI951095A

公开(公告)日：1995-03-09

申请号：FI951095

申请日：1995-03-09

Applicant: MOTOROLA INC

Inventor： KOTZIN MICHAEL D ,  BRUCKERT EUGENE J

IPC: H04J13/04 ,  H04J3/06 ,  H04J3/16 ,  H04J13/00 ,  H04L12/64 ,  H04W88/08 ,  H04L

Abstract: A direct sequence code-division multiple access (DS CDMA) communication system schedules conveyance of blocks (400) of information such that the blocks arrive at a base-site (130) just-in-time for transmission during a discrete frame (301-305) of an air-interface. The DS CDMA communication system implements both circuit switching and packet switching approaches to provide trunking efficiencies while balancing between system loading constraints and time delay of blocks (400) during conveyance.