Method and arrangement for implementing power control
First Claim
1. A method for implementing power control on a connection between two transceivers, the method comprising the steps of receiving frame-structured signal sent from the first transceiver using the second transceiver, decoding the received signal in a decoder of the second transceiver, the decoder providing an estimate concerning the reliability of the signal in the output thereof, comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, adjusting the transmission power of the first transceiver in the second transceiver by signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability, wherein the power control information is calculated on the basis of the estimated reliability.
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Abstract
A method for implementing power control on a connection between two transceivers, the method comprising the steps of receiving frame-structured signal sent from the first transceiver using the second transceiver, decoding the received signal in a decoder of the second transceiver, the decoder providing an estimate concerning the reliability of the signal in the output thereof, comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, adjusting the transmission power of the first transceiver in the second transceiver by signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability. The solution of the invention calculates the power control information on the basis of the estimated reliability.
39 Citations
41 Claims
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1. A method for implementing power control on a connection between two transceivers, the method comprising the steps of
receiving frame-structured signal sent from the first transceiver using the second transceiver, decoding the received signal in a decoder of the second transceiver, the decoder providing an estimate concerning the reliability of the signal in the output thereof, comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, adjusting the transmission power of the first transceiver in the second transceiver by signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability, wherein the power control information is calculated on the basis of the estimated reliability.
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2. A method for implementing power control on a connection between two transceivers, the method comprising the steps of
receiving frame-structured signal sent from the first transceiver using the second transceiver, decoding the received signal in a decoder of the second transceiver, the decoder providing an estimate concerning the reliability of the signal in the output thereof, comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, adjusting the transmission power of the first transceiver in the second transceiver by signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability, wherein an estimate of at least one reliability measure distribution is generated using the reliability measures of several received frames, and the power control information is calculated on the basis of the estimated reliability.
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22. An arrangement for implementing power control on a connection between two transceivers, the arrangement comprising in the second transceiver
means for receiving frame-structured signal sent from the first transceiver, means for decoding the received signal, the means being arranged to provide an estimate concerning the reliability of the signal in the output thereof, means for comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, means for adjusting the transmission power of the first transceiver by forming and signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability, means for adjusting the given threshold value in order to optimize signal quality, and means for calculating the power control information on the basis of the estimated reliability.
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23. An arrangement for implementing power control on a connection between two transceivers, the arrangement comprising in the second transceiver
means for receiving frame-structured signal sent from the first transceiver, means for decoding the received signal, the means being arranged to provide an estimate concerning the reliability of the signal in the output thereof, means for comparing the estimated reliability or the parameter modelling the reliability to a particular given threshold value, means for adjusting the transmission power of the first transceiver by forming and signalling power control information to the first transceiver so that the estimated reliability is as close as possible to the given reliability, means for generating an estimate of at least one reliability measure distribution using the reliability measures of several received frames, and means for calculating the power control information on the basis of the estimated reliability.
Specification