Mitigating interferences for a multi-layer MIMO system augmented by radio distribution network
First Claim
1. A wireless User Equipment (UE) receiving system comprising:
- two or more beamformers, each beamformer having a plurality of tunable receiving antennas; and
a control module configured to;
carry out a periodic, non-continuous channel estimation on a plurality of desired signals and a plurality of undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of antennas; and
identify the undesired co-channel downlink signals having a strongest interference level,wherein the control module is configured to select between two alternative weights tuning based on highest signal plus interference to noise ratio (SINR) by;
tuning said plurality of tunable receiving antennas so as to maximize a total average power of said desired signals; and
tuning said plurality of tunable receiving antennas so as to minimize a total average power of the identified undesired co-channel downlink signals having the strongest interference level.
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Accused Products
Abstract
A wireless User Equipment (UE) receiving system, may include tunable receiving antennas; a channel estimation module configured to: carry out a periodic, non-continuous channel estimation to a plurality of desired signals and undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of antennas, causing interference; wherein the UE receiving system is configured to select between: tuning said plurality of tunable receiving antennas so as to maximize the total average power of said desired signals; and tuning said plurality of tunable receiving antennas so as to minimize the total average power of the strongest undesired co-channel base station'"'"'s signals. Alternatively, the tuning is carried out so as to maximize a power ratio between said desired signals and a combination of said undesired co-channel downlink signals having the strongest interference level and an internal noise of the receiving system.
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Citations
15 Claims
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1. A wireless User Equipment (UE) receiving system comprising:
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two or more beamformers, each beamformer having a plurality of tunable receiving antennas; and a control module configured to; carry out a periodic, non-continuous channel estimation on a plurality of desired signals and a plurality of undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of antennas; and identify the undesired co-channel downlink signals having a strongest interference level, wherein the control module is configured to select between two alternative weights tuning based on highest signal plus interference to noise ratio (SINR) by; tuning said plurality of tunable receiving antennas so as to maximize a total average power of said desired signals; and tuning said plurality of tunable receiving antennas so as to minimize a total average power of the identified undesired co-channel downlink signals having the strongest interference level. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A wireless User Equipment (UE) receiving system comprising:
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two or more beamformers, each beamformer having a plurality of tunable receiving antennas; and a control module configured to; carry out a periodic, non-continuous channel estimation on a plurality of desired and undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of antennas; and determine the undesired co-channel downlink signals having a strongest interference level, wherein the control module is configured to tune said plurality of tunable receiving antennas so as to maximize a ratio between a total average power of;
said desired signals, and a combination of said undesired co-channel downlink signals having the strongest interference level and an internal noise of the UE receiving system. - View Dependent Claims (9, 10, 11)
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12. A method comprising:
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receiving wireless signals from a plurality of transmit antennas via beamformers with a plurality of tunable receiving antennas; carrying out a periodic, non-continuous channel estimation on a plurality of desired and undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of tunable receiving antennas; determining the undesired co-channel downlink signals having a strongest interference level, and selecting based on highest SINR between; (i) tuning said plurality of tunable receiving antennas so as to maximize a total average power of said desired signals; and (ii) tuning said plurality of tunable receiving antennas so as to minimize a total average power of the determined undesired co-channel downlink signals having the strongest interference level. - View Dependent Claims (13)
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14. A method comprising:
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receiving wireless signals from a plurality of transmit antennas via beamformers with a plurality of tunable receiving antennas; carrying out a periodic, non-continuous channel estimation to a plurality of desired and undesired co-channel downlink signals which are transmitted from different base stations and received by said plurality of tunable receiving antennas; determining the undesired co-channel downlink signals having a strongest interference level; and tuning said plurality of tunable receiving antennas so as to maximize a ratio between a total average power of a) said desired signals and b) a combination of said undesired co-channel downlink signals having the strongest interference level and an internal noise of the UE receiving system. - View Dependent Claims (15)
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Specification