Dynamically accounting for past transmit power as basis to set future transmit power
AssigneeSprint Spectrum L.P.
InventorWilliam Shvodian
Life of this patent
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Abstract
A method and system for controlling uplink transmit power of a UE, for instance on an FDD connection. An example method includes, iteratively for each successive given time interval of a continuum of equal-duration time intervals (i) determining an actual average transmit power of the UE in the given time interval, (ii) using the determined actual average transmit power of the UE in the given time interval as a basis to set a maximum average transmit power of the UE in a respective subsequent time interval of the continuum of time intervals, and (iii) applying the set maximum average transmit power as a limitation on uplink transmit power of the UE in the respective subsequent time interval.
Claims20
A method for controlling uplink transmit power of a user equipment device (UE), the method comprising:
- iteratively for each given time interval of a continuum of equal-duration time intervals:
- (i) determining by the UE an actual average transmit power of the UE in the given time interval,
- (ii) using by the UE the determined actual average transmit power of the UE in the given time interval as a basis to set a maximum average transmit power of the UE in a respective subsequent time interval of the continuum of time intervals, and
- (iii) applying by the UE the set maximum average transmit power as a limitation on uplink transmit power of the UE in the respective subsequent time interval.
A method for controlling uplink transmit power of a user equipment device (UE) on a frequency division duplex (FDD) air interface having co-existing downlink and uplink channels, wherein the UE is required to limit its uplink transmit power to not exceed a predefined limit on average over a predefined time window, the method comprising:
- dividing by the UE the FDD air interface into a continuum of equal-duration time intervals, wherein each time interval is no longer than half of the predefined time window;
- and
- for each successive given time interval of the continuum of time intervals, (i) determining by the UE an actual average transmit power of the UE on the FDD air interface in the given time interval, (ii) using by the UE the determined actual average transmit power of the UE on the FDD air interface in the given time interval as a basis to set a maximum average transmit power of the UE on the FDD air interface in a respective subsequent time interval of the continuum of time intervals, and (iii) applying by the UE the set maximum average transmit power as a limitation on uplink transmit power of the UE on the FDD air interface in the respective subsequent time interval.
A user equipment device (UE) comprising:
- a wireless communication interface for engaging in air interface communication on an air interface defined on one or more radio-frequency carriers, wherein the wireless communication interface includes at least one variable-gain amplifier governing uplink transmit power of the UE on the air interface;
- and
- a controller configured to cause the UE to carry out operations iteratively for each successive given time interval of a continuum of time intervals defined on the air interface, the operations including:
- determining an actual average transmit power of the UE on the air interface in the given time interval,
- using the determined actual average transmit power of the UE on the air interface in the given time interval as a basis to set a maximum average transmit power of the UE on the air interface in a respective subsequent time interval of the continuum of time intervals, and
- applying the set maximum average transmit power as a limitation on uplink transmit power of the UE on the air interface in the respective subsequent time interval.
Dependencies are inferred from the claim text.