Iterative combining technique for multiple antenna receivers
First Claim
1. A method of processing radio signals received via multiple antennas in a radio receiver having at least one of the following:
- at least two antennas, each antenna delivering in use an antenna signal;
at least two elements of an antenna array, each antenna element delivering an antenna signal;
at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal;
the antenna signals being combined to deliver a combined signal, wherein for each antenna signal an iterative channel estimation is performed to control the combining process of the antenna signals.
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Accused Products
Abstract
A method of processing radio signals received via multiple antennas in a radio receiver having at least one of the following: at least two antennas, each antenna delivering in use an antenna signal; at least two elements of an antenna array, each antenna element delivering an antenna signal; at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal; the antenna signals being combined to deliver a combined signal, wherein for each antenna signal an iterative channel estimation is performed to control the combining process of the antenna signals. Advantages of the invention are improvement of error rate performance of multiple antenna radio receivers, because the antenna gain can be enhanced due to reducing the combining losses.
43 Citations
9 Claims
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1. A method of processing radio signals received via multiple antennas in a radio receiver having at least one of the following:
- at least two antennas, each antenna delivering in use an antenna signal;
at least two elements of an antenna array, each antenna element delivering an antenna signal;
at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal;
the antenna signals being combined to deliver a combined signal, wherein for each antenna signal an iterative channel estimation is performed to control the combining process of the antenna signals. - View Dependent Claims (2, 3, 4)
- at least two antennas, each antenna delivering in use an antenna signal;
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5. A radio receiver having at least one of the following:
- having at least two antennas, each antenna delivering in use an antenna signal; and
/or having at least two elements of an antenna array, each antenna element delivering an antenna signal; and
/or having at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal;
the radio receiver further having at least one signal combining module combining the antenna signals and to deliver a combined signal, the radio receiver also having at least one channel estimation module performing for each antenna signal an iterative channel estimation for controlling the combining process of the antenna signals. - View Dependent Claims (6, 7)
- having at least two antennas, each antenna delivering in use an antenna signal; and
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8. A radio base station comprising a radio receiver having at least one of the following:
- having at least two antennas, each antenna delivering in use an antenna signal; and
/or having at least two elements of an antenna array, each antenna element delivering an antenna signal; and
/or having at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal;
the radio receiver further having at least one signal combining module combining the antenna signals and to deliver a combined signal, the radio receiver also having at least one channel estimation module performing for each antenna signal an iterative channel estimation for controlling the combining process of the antenna signals.
- having at least two antennas, each antenna delivering in use an antenna signal; and
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9. A mobile communications system comprising a base station with a radio receiver having at least one of the following:
- having at least two antennas, each antenna delivering in use an antenna signal; and
/or having at least two elements of an antenna array, each antenna element delivering an antenna signal; and
/or having at least two antenna arrays each having a plurality of antenna elements, each antenna array delivering an antenna signal;
the radio receiver further having at least one signal combining module combining the antenna signals and to deliver a combined signal, the radio receiver also having at least one channel estimation module performing for each antenna signal an iterative channel estimation for controlling the combining process of the antenna signals.
- having at least two antennas, each antenna delivering in use an antenna signal; and
Specification