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US5950124A Expired / Lapsed US ⏱️ 0.0 years remaining

Cellular communication system with dynamically modified data transmission parameters

Assignee: Telxon Corp
•
Filing: 1995-12-04
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Granted: 1999-09-07
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Expires: 2015-12-04
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Abstract

Abstract An apparatus and process for improving the performance of a cellular communication system using direct sequence spread spectrum techniques. The apparatus and process enable dynamic modification of communication system parameters including PN code length, chipping rate and modulation technique for transmission of a data packet. Modification is based on proximity of the transmitter and receiver, transmitter and receiver capabilities and other factors. The system evaluates tradeoffs between data transmission speed and communication range to improve system performance.

Inventors

  • 👤 Michael L. Trompower
  • 👤 Paul F. Struhsaker
  • 👤 George L. Grim, III
  • 👤 James K. Holt
  • 👤 Victor K. Paulsen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 05:29
CPC Classifications
H; H04; H04J; H04J13/00; H04B; H04B1/00; H04B1/69; H04B1/707; H04L; H04L1/00; H04L1/0001; H04L1/0002; H04L1/0003; H04W; H04W28/00; H04W28/16; H04W28/18; H04B2201/00; H04B2201/69; H04B2201/707; H04B2201/70703; H04W84/00; H04W84/02; H04W84/04; H04W84/042; H04W88/00; H04W88/08

Claims Analysis

Total Claims: 53
Claim 1
Independent Claim 190 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate.
Claim 2
Dependent Claim 190 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate.
Claim 3
Dependent Claim 33 words
The cellular communication system of claim 1, wherein the mobile terminal transmitting system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 4
Dependent Claim 38 words
The cellular communication system of claim 2, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths and selecting among different chipping rates.
Claim 5
Dependent Claim 37 words
The cellular communication system of claim 1, wherein the mobile terminal transmitting system of the at least one mobile terminal is controllable based on communications received from the at least one of the plurality of base stations.
Claim 6
Dependent Claim 50 words
The cellular communication system of claim 4, wherein the controllable mobile terminal transmitting system is configured to transmit initially at a first data transmission rate and, based on communications received from the at least one of the plurality of base stations, to transmit subsequently at a second data transmission rate.
Claim 7
Dependent Claim 33 words
The cellular communication system of claim 1, wherein the mobile terminal receiving system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 8
Dependent Claim 38 words
The cellular communication system of claim 6, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths and selecting among different chipping rates.
Claim 9
Dependent Claim 36 words
The cellular communication system of claim 1, wherein the base station transmitting system and the base station receiving system of the at least one of the plurality of base stations have generally fixed PN code parameters.
Claim 10
Dependent Claim 60 words
The cellular communication system of claim 1, wherein at least one of the base station transmitting system and the base station receiving system of the at least one of the plurality of base stations wirelessly communicates with the at least one mobile terminal by selectively transmitting or receiving data according to any of a plurality of different PN code parameters.
Claim 11
Dependent Claim 33 words
The cellular communication system of claim 9, wherein the base station transmitting system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 12
Dependent Claim 38 words
The cellular communication system of claim 10, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths and selecting among different chipping rates.
Claim 13
Dependent Claim 30 words
The cellular communication system of claim 10, wherein the base station transmitting system is controllable based on communications received from the at least one of the plurality of mobile terminals.
Claim 14
Dependent Claim 29 words
The cellular communication system of claim 1, wherein at least one of the plurality of base stations is coupled to the system backbone by way of a wireless connection.
Claim 15
Dependent Claim 168 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with a first of the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different transmission parameters.
Claim 16
Dependent Claim 168 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with a first of the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different transmission parameters.
Claim 17
Dependent Claim 33 words
The cellular communication system of claim 14, wherein the mobile terminal transmitting system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 18
Dependent Claim 43 words
The cellular communication system of claim 15, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths, selecting among different chipping rates, and selecting among different modulation schemes.
Claim 19
Dependent Claim 33 words
The cellular communication system of claim 14, wherein the mobile terminal receiving system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 20
Dependent Claim 43 words
The cellular communication system of claim 17, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths, selecting among different chipping rates, and selecting among different modulation schemes.
Claim 21
Dependent Claim 23 words
The cellular communication system of claim 14, wherein the plurality of different transmission parameters comprise different power levels at which data is transmitted.
Claim 22
Dependent Claim 35 words
The cellular communication system of claim 14, wherein the base station transmitting system and the base station receiving system of the at least one of the plurality of base stations have generally fixed transmission parameters.
Claim 23
Dependent Claim 59 words
The cellular communication system of claim 14, wherein at least one of the base station transmitting system and the base station receiving system of the at least one of the plurality of base stations wirelessly communicates with the at least one mobile terminal by selectively transmitting or receiving data according to any of a plurality of different transmission parameters.
Claim 24
Dependent Claim 23 words
The cellular communication system of claim 14, wherein the plurality of different transmission parameters comprise different power levels at which data is transmitted.
Claim 25
Dependent Claim 23 words
The cellular communication system of claim 10, wherein the plurality of different transmission parameters comprise different antennas used to receive or transmit data.
Claim 26
Dependent Claim 29 words
The cellular communication system of claim 14, wherein at least one of the plurality of base stations is coupled to the system backbone by way of a wireless connection.
Claim 27
Dependent Claim 207 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate; and wherein at least another one of the mobile terminals cannot vary any of its transmission parameters.
Claim 28
Dependent Claim 207 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to at least one of the mobile terminals, at least one of the mobile terminal transmitter system and the mobile terminal receiving system wirelessly communicates with the at least one of the plurality of base stations by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate; and wherein at least another one of the mobile terminals cannot vary any of its transmission parameters.
Claim 29
Dependent Claim 33 words
The cellular communication system of claim 25, wherein the mobile terminal transmitting system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 30
Dependent Claim 33 words
The cellular communication system of claim 25, wherein the mobile terminal receiving system of the at least one mobile terminal is controllable to select any of a plurality of different data transmission rates.
Claim 31
Dependent Claim 187 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving data's PN code parameters based on predetermined criteria relating to achieving an optimal communication rate.
Claim 32
Dependent Claim 187 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving data's PN code parameters based on predetermined criteria relating to achieving an optimal communication rate.
Claim 33
Dependent Claim 26 words
The cellular communication system of claim 28, wherein the at least one base station is coupled to the system backbone by way of a wireless connection.
Claim 34
Dependent Claim 33 words
The cellular communication system of claim 28, wherein the base station transmitting system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 35
Dependent Claim 38 words
The cellular communication system of claim 30, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths and selecting among different chipping rates.
Claim 36
Dependent Claim 169 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different transmission parameters based on communications received from the mobile terminal.
Claim 37
Dependent Claim 169 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different transmission parameters based on communications received from the mobile terminal.
Claim 38
Dependent Claim 33 words
The cellular communication system of claim 32, wherein the base station receiving system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 39
Dependent Claim 38 words
The cellular communication system of claim 33, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths and selecting among different chipping rates.
Claim 40
Dependent Claim 26 words
The cellular communication system of claim 32, wherein the at least one base station is coupled to the system backbone by way of a wireless connection.
Claim 41
Dependent Claim 33 words
The cellular communication system of claim 32, wherein the base station transmitting system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 42
Dependent Claim 43 words
The cellular communication system of claim 32, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths, selecting among different chipping rates, and selecting among different modulation schemes.
Claim 43
Dependent Claim 203 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate; and wherein at least another one of the base stations cannot vary any of its transmission parameters.
Claim 44
Dependent Claim 203 words
A cellular communication system, comprising: a plurality of base stations coupled to a system backbone, each of the base stations comprising a base station receiver system for receiving wireless communications and a base station transmitter system for transmitting wireless communications; and a plurality of mobile terminals each for communicating with the system backbone by way of at least one of the plurality of base stations, each of the plurality of mobile terminals having a mobile terminal transmitter for transmitting wireless communications to the at least one the plurality of base stations and a mobile terminal receiver system for receiving wireless communications from the at least one of the plurality of base stations; wherein, with respect to the at least one of the base station, at least one of the base station transmitter system and the base station receiving system wirelessly communicates with one of the mobile terminals by selectively transmitting or receiving data according to a plurality of different PN code parameters as a result of dynamically modifying the transmitting or receiving PN code parameters based on predetermined criteria relating to achieving an optimal communication rate; and wherein at least another one of the base stations cannot vary any of its transmission parameters.
Claim 45
Dependent Claim 33 words
The cellular communication system of claim 38, wherein the base station transmitting system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 46
Dependent Claim 33 words
The cellular communication system of claim 38, wherein the base station receiving system of the at least one base station is controllable to select any of a plurality of different data transmission rates.
Claim 47
Dependent Claim 88 words
A base station coupled to a system backbone for use in a cellular communication system, the base station comprising: a transmitting system for wirelessly communicating data to a mobile terminal included in the cellular communication system; and a receiving system for wirelessly receiving data from the mobile terminal; wherein at least on of the transmitting system and the receiving system wirelessly communicates with the mobile terminal by selectively transmitting or receiving data according to a plurality of different transmission parameters based on communications received from the mobile terminal.
Claim 48
Dependent Claim 88 words
A base station coupled to a system backbone for use in a cellular communication system, the base station comprising: a transmitting system for wirelessly communicating data to a mobile terminal included in the cellular communication system; and a receiving system for wirelessly receiving data from the mobile terminal; wherein at least on of the transmitting system and the receiving system wirelessly communicates with the mobile terminal by selectively transmitting or receiving data according to a plurality of different transmission parameters based on communications received from the mobile terminal.
Claim 49
Dependent Claim 22 words
The base station of claim 41, wherein the base station is coupled to the system backbone by way of a wireless connection.
Claim 50
Dependent Claim 23 words
The base station of claim 41, wherein the transmitting system is controllable to select any of a plurality of different data transmission rates.
Claim 51
Dependent Claim 42 words
The base station of claim 43, wherein any of the plurality of different data transmission rates is selected by way of at least one of selecting among different PN code lengths, selecting among different chipping rates, and selecting among different modulation schemes.
Claim 52
Dependent Claim 20 words
The base station of claim 41, wherein the transmitting system is controllable based on communications received from the mobile terminal.
Claim 53
Dependent Claim 22 words
The base station of claim 41, wherein the plurality of different transmission parameters comprise different power levels at which data is transmitted.

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