Communication system
First Claim
Patent Images
1. A method comprising:
- determining a characteristic for each of a plurality of communication channels of a wireless network, wherein the communication channels are formed between a plurality of transmitters and at least one receiver;
selecting a set of weighting factors to be applied to the plurality of transmitters based on the communication channel characteristics;
determining for each communication channel a quality indication based on the selected weighting factors; and
allocating said communication channels depending on said quality indication;
wherein said quality indication is determined based on an estimated signal to interference ratio given by
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Abstract
A method and system for communication over a wireless network has a plurality of communication channels formed between a plurality of transmitters and at least one receiver and is especially beneficial in a multiuser environment having a plurality of receivers. A characteristic is determined for each channel and then a set of weighting factors is selected to be applied to the transmitters based on the channels characteristics. The weighting factors are selected for optimizing the signal power at a receiver and a quality indication is determined for each channel based on the selected weighting factors. The indication is used to prioritize the allocation of the channels.
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Citations
36 Claims
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1. A method comprising:
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determining a characteristic for each of a plurality of communication channels of a wireless network, wherein the communication channels are formed between a plurality of transmitters and at least one receiver; selecting a set of weighting factors to be applied to the plurality of transmitters based on the communication channel characteristics; determining for each communication channel a quality indication based on the selected weighting factors; and allocating said communication channels depending on said quality indication; wherein said quality indication is determined based on an estimated signal to interference ratio given by - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A system comprising:
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a plurality of communication channels formed between a plurality of transmitters and at least one receiver; first estimation circuitry configured to estimate the communication channel characteristics; selection circuitry configured to select a set of weighting factors to be applied to the plurality of transmitters based on the communication channel characteristics; second estimation circuitry configured to determine communication channel quality based on the selected weighting factor; and communication channel allocation circuitry configured to allocate said communication channel depending on the estimated communication channel quality; wherein said second estimation circuitry is configured to determine said communication channel quality based on an estimated signal to interference ratio given by - View Dependent Claims (26)
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27. An apparatus comprising:
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characteristic determining circuitry configured to determine a characteristic for each of a plurality of communication channels formed between a base station and the apparatus, wherein the base station comprises a plurality of transmitters; selection circuitry configured to select a set of weighting factors to be applied to corresponding transmitters based on the communication channel characteristics; and calculation circuitry configured to determine for each communication channel a quality indication based on the selected weighting factors; wherein said calculation circuitry is configured to determine said quality indication based on an estimated signal to interference ratio given by - View Dependent Claims (28)
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29. An apparatus comprising:
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a plurality of transmitters so that a plurality of communication channels are formed between the apparatus and a mobile station; characteristic determining circuitry configured to determine a characteristic for each communication channel of the plurality of communication channels; selection circuitry configured to select a set of weighting factors to be applied to the corresponding transmitters based on the communication channel characteristics; and calculation circuitry configured to determine for each communication channel a quality indication based on the selected weighting factors; and allocation circuitry configured to allocate said communication channels depending on said quality indication; wherein said calculation circuitry is configured to determine said quality indication based on an estimated signal to interference ratio given by - View Dependent Claims (30)
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31. A computer program, embodied on a computer-readable medium, the computer program configured to perform the following:
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calculate a characteristic for each communication channel of a plurality of communication channels in a wireless communication network, wherein the communication channels are formed between a base station having a plurality of transmitters and at least one mobile station having a receiver; process said communication channel characteristics and selecting a set of weighting factors to be applied to the corresponding transmitters based thereon; generate, for each communication channel, a quality indicator based on the selected weighting factors; and allocate said communication channels depending on said quality indicator; wherein said quality indicator is determined based on an estimated signal to interference ratio given by - View Dependent Claims (32, 33)
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34. A system comprising:
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first estimation means for estimating characteristics of a plurality of communication channels formed between a plurality of transmitters and at least one receiver; selection means for selecting a set of weighting factors to be applied to the plurality of transmitters based on the communication channel characteristics; second estimation means for determining communication channel quality based on the selected weighting factor; and communication channel allocation means for allocating said communication channel depending on the estimated communication channel quality; wherein said second estimation means is configured to determine said communication channel quality based on an estimated signal to interference ratio given by
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35. An apparatus comprising:
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characteristic determining means for determining a characteristic for each of a plurality of communication channels formed between a base station and the apparatus; selection means for selecting a set of weighting factors to be applied to corresponding transmitters of the base station based on the communication channel characteristics; and calculation means for determining for each communication channel a quality indication based on the selected weighting factors; wherein said calculation means is configured to determine said quality indication based on an estimated signal to interference ratio given by
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36. An apparatus comprising:
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a plurality of transmitters so that a plurality of communication channels are formed between the apparatus and a mobile station having at least one receiver; characteristic determining means for determining a characteristic for each communication channel of the plurality of communication channels; selection means for selecting a set of weighting factors to be applied to the corresponding transmitters based on the communication channel characteristics; calculation means for determining for each communication channel a quality indication based on the selected weighting factors; and allocation means for allocating said communication channels depending on said quality indication; wherein said calculation means is configured to determine said quality indication based on an estimated signal to interference ratio given by
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Specification