MOBILE COMMUNICATIONS NETWORK
First Claim
1. A data communications method for a time-division multiplexed communications protocol in which data intended for plural user terminals can be simultaneously transmitted in one time slot, the method comprising:
- receiving data in a first user terminal during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal;
estimating an applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein available power ratios are divided into at least one known region and each applied power ratio belongs to one region;
estimating a bit error probability for each burst of the received data; and
applying an adaptation process in order to make the estimated bit error probabilities fall into one bit error probability interval of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network, and the adaptation process to be applied depends on which region the applied power ratio belongs to.
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Accused Products
Abstract
A first user terminal receives data during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal using time-division multiplexing, estimates the applied power ratio between a first sub-channel to the first set and a second sub-channel to the second set (available power ratios are divided into at least one known region and each applied power ratio belongs to one region), estimates a bit error probability for each of the bursts of the received data; and applies an adaptation process in order to make the estimated bit error probabilities fall into one of bit error probability intervals of a predefined mapping table with a predetermined probability. which determines the bit error probability that is to be reported to a network.
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Citations
23 Claims
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1. A data communications method for a time-division multiplexed communications protocol in which data intended for plural user terminals can be simultaneously transmitted in one time slot, the method comprising:
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receiving data in a first user terminal during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal; estimating an applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein available power ratios are divided into at least one known region and each applied power ratio belongs to one region; estimating a bit error probability for each burst of the received data; and applying an adaptation process in order to make the estimated bit error probabilities fall into one bit error probability interval of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network, and the adaptation process to be applied depends on which region the applied power ratio belongs to. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for generating adaptation data for performing an adaptation process, the method comprising:
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dividing a range of available power ratios between the transmission power of a first sub-channel to a first set of at least one user terminal and the transmission power of a second sub-channel to a second set of at least one user terminal into at least one region; and associating each region with specific adaptation data that is to be applied in the adaptation process when receiving data in a time slot assigned for simultaneous transmission of data to the first set and to the second set in a time-division multiplexing communication protocol. - View Dependent Claims (9, 10, 11)
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12. A data communications apparatus operable with a time division multiplexed communications protocol in which data intended for plural user terminals can be simultaneously transmitted in one time slot, the apparatus comprising at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
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receive data during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal; estimate an applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein available power ratios are divided into at least one known region and each applied power ratio belongs to one region; estimate a bit error probability for each burst of the received data; and apply an adaptation process in order to make the estimated bit error probabilities fall into one bit error probability interval of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network and the adaptation process to be applied depends on which region the applied power ratio belongs to. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A data communications apparatus, comprising at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured to, with the at least one processor, cause the apparatus at least to:
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divide the range of available power ratios between the transmission power of a first sub-channel to a first set of at least one user terminal and the transmission power of a second sub-channel to a second set of at least one user terminal into at least one region; and associate each region with specific adaptation data that is to be applied in an adaptation process when receiving data in a time slot assigned for simultaneous transmission of data to the first set and to the second set in a time-division multiplexing communication protocol. - View Dependent Claims (20, 21, 22)
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23. A computer program product embodied on a distribution medium readable by a computer and comprising program instructions which, when loaded into an apparatus, cause the apparatus to perform actions for a time-division multiplexed communications protocol in which data intended for plural user terminals can be simultaneously transmitted in one time slot, the actions comprising:
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receiving data in a first user terminal during a time slot assigned for simultaneous transmission of data to a first set of at least one user terminal and to a second set of at least one user terminal; estimating an applied power ratio between the transmission power of a first sub-channel to the first set and the transmission power of a second sub-channel to the second set, wherein available power ratios are divided into at least one known region and each applied power ratio belongs to one region; estimating a bit error probability for each burst of the received data; and applying an adaptation process in order to make the estimated bit error probabilities fall into one bit error probability interval of a predefined mapping table with a predetermined probability, wherein the bit error probability interval in which the estimated bit error probabilities fall determines the bit error probability that is to be reported to a network, and the adaptation process to be applied depends on which region the applied power ratio belongs to.
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Specification