US5533099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-mode radio telephone
Assignee: Nokia Technologies Oy
•
Filing: 1995-03-21
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Granted: 1996-07-02
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Expires: 2015-03-21
Abstract
Abstract A radio telephone (200) is operable in a cordless telephone system or in a cellular telephone system, in each of which reception and transmission occur in time slots. A microprocessor (210) of the telephone has an additional control entity (212) which predicts temporal overlap or coincidence of receive and transmit slots in the two systems. This information is used either to alter the time slots to avoid the predicted overlap or coincidence or to reduce the effect of interference, for example by muting certain slots or repeating signals in previous slot or slots.
Inventors
- 👤 John D. Byrne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:28
CPC Classifications
H; H04; H04W; H04W36/00; H04W36/16; H04W36/20; H04W88/00; H04W88/02; H04W88/06
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
63 words
A radio telephone operative in two radio telephone systems in each of which transmission and reception occur in time slots, the radio telephone comprising first means for predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and second means, responsive to the first means, for avoiding or reducing the interference consequent upon the predicted overlap or coincidence.
Claim 2
Dependent Claim
63 words
A radio telephone operative in two radio telephone systems in each of which transmission and reception occur in time slots, the radio telephone comprising first means for predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and second means, responsive to the first means, for avoiding or reducing the interference consequent upon the predicted overlap or coincidence.
Claim 3
Dependent Claim
14 words
A radio telephone according to claim 1, wherein the radio telephone operates in TDMA.
Claim 4
Dependent Claim
17 words
A radio telephone according to claim 1, wherein the radio telephone is responsible for making channel selection.
Claim 5
Dependent Claim
32 words
A radio telephone according to claim 1, wherein the second means are operative to alter the time slots in which transmission or reception occurs to avoid the incidence of overlap or coincidence.
Claim 6
Dependent Claim
25 words
A radio telephone according to claim 1, wherein the second means utilise knowledge of the predicted overlap or coincidence to reduce the effect of interference.
Claim 7
Dependent Claim
27 words
A radio telephone according to claim 5, wherein the second means are operative to effect muting in the time slots during which interference is predicted to occur.
Claim 8
Dependent Claim
23 words
A radio telephone according to claim 5, wherein the second means are operable to repeat signals in a previous time slot or slots.
Claim 9
Dependent Claim
22 words
A radio telephone according to claim 7, wherein the first and second means are incorporated in a microprocessor of the radio telephone.
Claim 10
Dependent Claim
74 words
In combination, a micro-cellular telephone system, a macro-cellular telephone system, in each system transmission and reception occurring in time slots, and at least one radio telephone capable or operating in either system, the combination comprising first means for predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and second means, responsive to the first means, for avoiding or reducing the interference consequent upon the predicted overlap or coincidence.
Claim 11
Dependent Claim
74 words
In combination, a micro-cellular telephone system, a macro-cellular telephone system, in each system transmission and reception occurring in time slots, and at least one radio telephone capable or operating in either system, the combination comprising first means for predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and second means, responsive to the first means, for avoiding or reducing the interference consequent upon the predicted overlap or coincidence.
Claim 12
Independent Claim
58 words
A method of operating a radio telephone which is operative in two telephone systems in each of which transmission and reception occur in time slots, comprising predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and using the prediction to avoid or reduce the interference consequent upon the predicted overlap or coincidence.
Claim 13
Independent Claim
58 words
A method of operating a radio telephone which is operative in two telephone systems in each of which transmission and reception occur in time slots, comprising predicting the temporal overlap or coincidence of receive and transmit slots in the two systems and using the prediction to avoid or reduce the interference consequent upon the predicted overlap or coincidence.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-07-02 | 2000-01-01 | 2000-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-07-02 | 2004-01-01 | 2004-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-07-02 | 2008-01-01 | 2008-07-02 | $7700.00 | Window Closed / Lapsed |