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US6134443A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus of directing radio frequency communication in a communication system

Assignee: Motorola Solutions Inc
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Filing: 1998-03-27
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Granted: 2000-10-17
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Expires: 2018-03-27
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Abstract

Abstract A method and apparatus in a communication system (300) directs a radio frequency communication from a first radio frequency channel in a first frequency band between a mobile user of a mobile station (310) and a land based network (301). The method includes determining in a base station subsystem (350) allowability of the mobile user to operate in the second frequency band, and assigning the second radio frequency channel in the second frequency band to mobile station (310) when according to the determining step the mobile user is allowed to operate in the second radio frequency band. The determining step is based on an association of a mobile user of mobile station (310) with at least one of a plurality of cells in communication system (300), or a priority information element, or a subscriber identity. The second frequency band is a preferred frequency band which may be a predetermined preferred frequency band, or based on a congestion condition in communication system (300).

Inventors

  • 👤 Robert Craig Spann
  • 👤 Stephen Spear
  • 👤 Dennis Gilliland

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 23:32
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/0005; H04W36/0083; H04W36/00838; H04W36/16; H04W36/22

Claims Analysis

Total Claims: 28
Claim 1
Independent Claim 170 words
In a communication system that provides a radio frequency communication over a first radio frequency channel in a first frequency band between a mobile user and a land based network and provides said radio frequency communication over at least said first and a second radio frequency bands, a method of directing said radio frequency communication comprising the steps of: determining allowability of said mobile user to operate in said second radio frequency band; assigning a second radio frequency channel in said second radio frequency band to said mobile user when said mobile user is allowed to operate in said second radio frequency band based on said step of determining; wherein said second frequency band is a preferred frequency band, and said step of assigning is in response to a handover request in said radio frequency communication; sorting a list of handover candidate frequency channels to include at least one channel frequency in said preferred frequency band; and relaxing a handover criteria in said communication system to trigger said handover request.
Claim 2
Dependent Claim 170 words
In a communication system that provides a radio frequency communication over a first radio frequency channel in a first frequency band between a mobile user and a land based network and provides said radio frequency communication over at least said first and a second radio frequency bands, a method of directing said radio frequency communication comprising the steps of: determining allowability of said mobile user to operate in said second radio frequency band; assigning a second radio frequency channel in said second radio frequency band to said mobile user when said mobile user is allowed to operate in said second radio frequency band based on said step of determining; wherein said second frequency band is a preferred frequency band, and said step of assigning is in response to a handover request in said radio frequency communication; sorting a list of handover candidate frequency channels to include at least one channel frequency in said preferred frequency band; and relaxing a handover criteria in said communication system to trigger said handover request.
Claim 3
Dependent Claim 46 words
The method as recited in claim 1 wherein said communication system includes a plurality of cells and said radio frequency communication has a radio link association with at least one of said plurality of cells, said step of determining being based on said radio link association.
Claim 4
Dependent Claim 29 words
The method as recited in claim 2 wherein said radio link association is in a form of transmission and reception of signals required for maintaining said radio frequency communication.
Claim 5
Dependent Claim 22 words
The method as recited in claim 1 wherein said step of determining is according to an information associated with said mobile user.
Claim 6
Dependent Claim 19 words
The method as recited in claim 4 wherein said information is a priority information assigned to said mobile user.
Claim 7
Dependent Claim 20 words
The method as recited in claim 4 wherein said information is a mobile identity information assigned to said mobile user.
Claim 8
Dependent Claim 22 words
The method as recited in claim 1 wherein said step of assigning is in response to existence of said preferred frequency band.
Claim 9
Dependent Claim 18 words
The method as recited in claim 1 wherein said preferred frequency band is a predetermined preferred frequency band.
Claim 10
Dependent Claim 23 words
The method as recited in claim 1 wherein said preferred frequency band is selected based on a congestion condition in said communication system.
Claim 11
Dependent Claim 18 words
The method as recited in claim 9 wherein said congestion condition is of said first radio frequency band.
Claim 12
Dependent Claim 22 words
The method as recited in claim 1 wherein said handover request is generated based on a measurement report in said communication system.
Claim 13
Dependent Claim 23 words
The method as recited in claim 1 wherein the step of relaxing is in response to a congestion condition in said communication system.
Claim 14
Dependent Claim 18 words
The method as recited in claim 12 wherein said congestion condition is of said first radio frequency band.
Claim 15
Dependent Claim 22 words
The method as recited in claim 1 wherein said second frequency channel is selected from a list of handover candidate frequency channels.
Claim 16
Dependent Claim 21 words
The method as recited in claim 1 wherein said first and second radio frequency channels are of a control channel type.
Claim 17
Dependent Claim 21 words
The method as recited in claim 1 wherein said first and second radio frequency channels are of a traffic channel type.
Claim 18
Dependent Claim 30 words
The method as recited in claim 1 wherein said first radio frequency channel is of a control channel type and said second frequency channel is of a traffic channel type.
Claim 19
Independent Claim 74 words
An apparatus in a communication system comprising: a mobile station controller including a database holding information associated with a mobile user accessing said communication system; and a base station subsystem in a radio frequency communication with said mobile user, and in a communication with said mobile station controller for communicating said information to said base station subsystem, including means for determining an extent of said radio frequency communication multiband operation based on said information.
Claim 20
Independent Claim 74 words
An apparatus in a communication system comprising: a mobile station controller including a database holding information associated with a mobile user accessing said communication system; and a base station subsystem in a radio frequency communication with said mobile user, and in a communication with said mobile station controller for communicating said information to said base station subsystem, including means for determining an extent of said radio frequency communication multiband operation based on said information.
Claim 21
Dependent Claim 18 words
The apparatus as recited in claim 18 wherein said information is a subscription information of said mobile user.
Claim 22
Dependent Claim 15 words
The apparatus as recited in claim 18 wherein said information is a priority information element.
Claim 23
Dependent Claim 17 words
The apparatus as recited in claim 18 wherein said information is an international mobile subscriber identity information.
Claim 24
Dependent Claim 17 words
The apparatus as recited in claim 18 wherein said information is a temporary mobile subscriber identity information.
Claim 25
Dependent Claim 23 words
The apparatus as recited in claim 18 wherein said base station subsystem further comprising means for requesting said information from said mobile user.
Claim 26
Dependent Claim 31 words
The apparatus as recited in claim 23 wherein said base station subsystem further comprising means for storing said information when said requesting means is requesting said information from said mobile user.
Claim 27
Dependent Claim 28 words
The apparatus as recited in claim 18 wherein said base station subsystem further comprising means for comparing said information to a predetermined information associated with said mobile user.
Claim 28
Dependent Claim 18 words
The apparatus as recited in claim 18 wherein said communication system is a global system for mobile communications.

References Cited (Backward Citations)

US5542093A Cited
US5504939A Cited
US5878349A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2003-10-17 2004-04-17 2004-10-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2007-10-17 2008-04-17 2008-10-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2011-10-17 2012-04-17 2012-10-17 $7700.00 Window Closed / Lapsed

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