Method for adjusting a transmit power of a multi carrier transmitter and a multi carrier transmitter
First Claim
1. A method for adjusting a transmit power of a multi carrier transmitter in a mobile communication system, comprising:
- providing at least two data streams, wherein each data stream is configured to be transmitted on a separate carrier frequency;
determining a transmit signal adaptation metric separately for each of the at least two data streams;
determining the 4th and 6th moments for each of the at least two data streams;
calculating a combined transmit signal adaptation metric based on the separate transmit signal adaptation metrics, wherein the combined transmit signal adaptation metric is based at least in part on the 4th and 6th moments for one or more of the at least two data streams;
combining the two data streams carried on the two separate carrier frequencies to an overall transmit signal; and
adjusting the transmit power of the overall transmit signal based on the calculated combined transmit signal adaptation metric,wherein each of the at least two data streams comprises at least one data channel and the 4th and 6th moments of each of the at least two data streams are determined based on gain and mode settings for the at least one data channel.
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Accused Products
Abstract
A method for adjusting a transmit power of a multi carrier transmitter in a mobile communication system includes providing at least two data streams, each data stream to be transmitted on a separate carrier frequency, and determining a transmit signal adaptation metric separately for each of the at least two data streams. The method further includes calculating a combined transmit signal adaptation metric based on the separate transmit signal adaptation metrics, combining the two data streams carried on the two carrier frequencies to an overall transmit signal, and adjusting the transmit power of the overall transmit signal based on the calculated combined transmit signal adaptation metric.
5 Citations
18 Claims
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1. A method for adjusting a transmit power of a multi carrier transmitter in a mobile communication system, comprising:
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providing at least two data streams, wherein each data stream is configured to be transmitted on a separate carrier frequency; determining a transmit signal adaptation metric separately for each of the at least two data streams; determining the 4th and 6th moments for each of the at least two data streams; calculating a combined transmit signal adaptation metric based on the separate transmit signal adaptation metrics, wherein the combined transmit signal adaptation metric is based at least in part on the 4th and 6th moments for one or more of the at least two data streams; combining the two data streams carried on the two separate carrier frequencies to an overall transmit signal; and adjusting the transmit power of the overall transmit signal based on the calculated combined transmit signal adaptation metric, wherein each of the at least two data streams comprises at least one data channel and the 4th and 6th moments of each of the at least two data streams are determined based on gain and mode settings for the at least one data channel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for operating a multi carrier transmitter, comprising:
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providing at least two data streams to be transmitted on the multi carriers, wherein each data stream comprises at least one data channel; looking up predetermined transmit signal adaptation metrics in a look up table for each data stream based on a respective actual data stream configuration to ascertain separate transmit signal adaptation metrics; determining the 4th and 6th moments for each of the at least two data streams; calculating a combined transmit signal adaptation metric based on the separate transmit signal adaptation metrics, wherein the combined transmit signal adaptation metric is based at least in part on the 4th and 6th moments for one or more of the at least two data streams; and adapting the at least two data streams to be transmitted on the multi carriers based on the calculated combined transmit signal adaptation metric in a feed forward manner, wherein each of the at least two data streams comprises at least one data channel and the 4th and 6th moments of each of the at least two data streams are determined based on gain and mode settings for the at least one data channel. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A multi carrier transmitter for transmitting a respective data stream on each of the multiple carrier frequencies, the transmitter comprising:
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a look up table configured to store pre-calculated transmit signal adaptation metric values for a data stream based on possible data stream configurations; and a calculation unit configured to retrieve the transmit signal adaptation metric values from the look up table for each of multiple data streams to be transmitted based on an actual data stream configuration of each data stream, and calculate, based on the retrieved values, a combined transmit signal adaptation metric, wherein the combined transmit signal adaptation metric is based at least in part on the 4th and 6th moments for one or more of the respective data streams, and wherein each of the respective data streams comprises at least one data channel and the 4th and 6th moments of each of the at least two data streams are determined based on gain and mode settings for the at least one data channel. - View Dependent Claims (16, 17, 18)
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Specification