US Patent No: 5,301,188

Number of patents in Portfolio can not be more than 2000

Shared-carrier frequency hopping

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Abstract

In a TDMA cellular network, there is provided a mechanism for shared-carrier frequency-hopping. It comprises: allocating on a frame basis within a reuse diameter to one coverage area during certain timeslot(s) at least one from a pool of TDM-frame-hopped carriers and allocating on a frame basis within that carrier reuse diameter to another coverage area during certain other, substantially non-overlapping timeslot(s) that frame-hopped carrier, all in substantially non-interfering time-synchronism with any proximal reuse of that carrier, whereby the advantages of frequency hopping are obtained. Stated differently, it comprises: at one instant in time, allocating within a reuse diameter to one coverage area at least one of a plurality of hopped carriers and at that same instant in time, allocating within that carrier reuse diameter to another coverage area another of that plurality of hopped carriers, all in time-synchronism with any proximal reuse of that carrier. The control and access carriers may also be included in the hopping pool, causing certain timeslots to be hopped on a sequence different from the others. The pool of hopped carriers is further apportioned among co-located sites into hopping groups, thereby reducing intra-system synchronization requirements. To solve the near/far problem, TDM timeslots bordering hopping boundaries are preferentially allocated to less distant mobile users.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MOTOROLA, INC.SCHAUMBURG, IL7100

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kotzin, Michael D Buffalo Grove, IL 176 2817
Spear, Stephen L Skokie, IL 39 735

Cited Art

Patent Info (Count) # Cites Year
 
MOTOROLA, INC. (3)
4,578,815 Wide area coverage radio communication system and method 147 1983
4,866,710 Reuse groups for scan monitoring in digital cellular systems 56 1988
5,040,238 Trunking system communication resource reuse method 148 1990
 
BELL TELEPHONE LABORATORIES, INCORPORATED (1)
4,425,639 Satellite communications system with frequency channelized beams 93 1981
 
HUGHES AIRCRAFT COMPANY (1)
4,677,617 Rapid frequency-hopping time synchronization 44 1985
 
HUGHES ELECTRONICS CORPORATION (1)
4,879,711 Satellite communications system employing frequency reuse 53 1987
 
QUALCOMM INCORPORATED (1)
4,979,170 Alternating sequential half duplex communication system 168 1988
 
SIEMENS AKTIENGESELLSCHAFT (1)
4,667,202 Mobile radio network 28 1984
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (1)
4,669,107 Method of increasing the number of call options in a mobile telephone system 40 1986
 
THE TOKYO ELECTRIC POWER CO., LTD. (1)
4,955,082 Mobile communication system 82 1989
 
VULCAN VENTURES, INC. (1)
5,079,768 Method for frequency sharing in frequency hopping communications network 104 1990

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
ATC TECHNOLOGIES, LLC (10)
6,892,068 Coordinated satellite-terrestrial frequency reuse 166 2001
6,859,652 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 149 2001
7,577,400 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 25 2004
7,831,251 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 15 2005
7,706,746 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 18 2005
7,636,567 Coordinated satellite-terrestrial frequency reuse 20 2006
7,593,726 Coordinated satellite-terrestrial frequency reuse 24 2006
7,907,893 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 10 2006
7,792,488 Systems and methods for transmitting electromagnetic energy over a wireless channel having sufficiently weak measured signal strength 17 2009
8,369,775 Integrated or autonomous system and method of satellite-terrestrial frequency reuse using signal attenuation and/or blockage, dynamic assignment of frequencies and/or hysteresis 0 2009
 
INTERDIGITAL TECHNOLOGY CORPORATION (7)
5,459,759 Frequency hopping code division multiple access system and method 64 1994
5,657,343 Frequency hopping code division multiple access system and method 49 1995
5,881,094 Frequency hopping code division multiple access system and method 29 1997
6,128,328 Frequency hopping code division multiple access system and method 13 1999
6,327,297 Frequency hopping code division multiple access system and method 5 2000
6,507,600 Frequency hopping code division multiple access system and method 0 2001
7,142,582 Receiving and selectively transmitting frequency hopped data signals using a plurality of antennas 2 2002
 
ERICSSON INC. (3)
5,844,894 Time-reuse partitioning system and methods for cellular radio telephone systems 85 1996
6,151,310 Dividable transmit antenna array for a cellular base station and associated method 30 1996
6,229,796 Code-reuse partitioning systems and methods for cellular radiotelephone systems 21 1998
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (3)
5,805,633 Method and apparatus for frequency planning in a multi-system cellular communication network 73 1995
6,405,048 Method and system for autonomously allocating frequencies to a radio system sharing frequencies with an overlapping macro radio system 25 1998
6,246,713 Frequency-hopping in a bandwidth-on-demand system 58 1998
 
CIRRUS LOGIC, INC. (2)
6,038,455 Reverse channel reuse scheme in a time shared cellular communication system 130 1996
6,188,903 Method and apparatus for frequency reuse in cellular communication systems 28 1999
 
MOTOROLA MOBILITY LLC (2)
5,627,880 MAHO method for SFH-CDMA/TDMA using punctured frames 11 1995
6,778,831 Handover determination and power control adjustment in mobile communications systems with frequency hopping 6 2001
 
RESEARCH IN MOTION LIMITED (2)
5,884,145 Method and system for autonomously allocating a cellular communications channel for communication between a cellular terminal and a telephone base station 53 1996
6,351,643 Method and system for autonomously allocating a frequency hopping traffic channel in a private radio system 36 1999
 
SBC KNOWLEDGE VENTURES, L.P. (2)
7,336,694 Delay-induced scattering with phase randomization and partitioned frequency hopping 3 2003
8,363,694 Delay-induced scattering with phase randomization and partitioned frequency hopping 0 2007
 
TRUEPOSITION, INC. (2)
6,101,178 Pseudolite-augmented GPS for locating wireless telephones 95 1998
6,771,625 Pseudolite-augmented GPS for locating wireless telephones 59 2000
 
ALCATEL (1)
6,522,657 Method of assigning time slots, as well as system, center, and subscriber facility for carrying out this method 1 1998
 
ALCATEL MOBILE COMMUNICATION FRANCE (1)
5,546,384 Step by step method of controlling frequency redefinition in a cellular mobile radio system 4 1994
 
Crossbow, Ltd. (1)
5,896,412 Wireless communication system 5 1994
 
DLPH IP LICENSING MI LLC (1)
5,859,841 Method and apparatus for frequency allocation in a cellular telecommunications network 39 1997
 
ERICSSON GE MOBILE COMMUNICATIONS INC. (1)
5,566,168 TDMA/FDMA/CDMA hybrid radio access methods 85 1995
 
Geotek Industries, Inc. (1)
5,838,673 Radio telephone system for minimizing co-channel interference utilizing geographic separation of signals and transmission power control 12 1996
 
HARINGTON VALVE, LLC (1)
RE42068 Method and apparatus for reducing co-channel interference in a frame-synchronized wireless communication system 0 2006
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,870,385 Allocation method and apparatus for reusing network resources in a wireless communication system 52 1997
 
ITT MANUFACTURING ENTERPRISES, INC. (1)
5,912,917 Digital broadcast system 12 1993
 
MITSUBISHI DENKI KABUSHIKI KAISHA (1)
6,615,047 Radio communications system 3 1999
 
MLR, LLC (1)
RE40540 Apparatus and methods for networking omni-modal radio devices 2 2003
 
NOKIA TELECOMMUNICATIONS OY (1)
6,259,685 Method for channel allocation utilizing power restrictions 27 1999
 
OPTO POWER CORPORATION (1)
6,137,787 Method and apparatus for resource assignment in a wireless communication system 46 1997
 
SIEMENS AKTIENGESELLSCHAFT (1)
6,201,819 Process for transmitting data packets from mobile stations to base stations in mobile radio systems operated on the time multiplex system 9 1998
 
SIGNALINK TECHNOLOGIES INC. (1)
7,852,745 Non-orthogonal frequency-division multiplexed communication through a non-linear transmission medium 0 2008
 
SITI-SITES.COM, INC. (A CORPORATION OF DELAWARE) (1)
RE38787 Apparatus and methods for networking omni-modal radio devices 52 1999
 
UNITED MICROELECTRONICS CORP. (1)
6,009,332 Method and system for autonomously allocating a frequency hopping traffic channel in a private radio system 62 1997
 
UNWIRED PLANET, LLC (1)
6,201,801 Polarization diversity phased array cellular base station and associated methods 21 1998