Non-directional transmitting from a wireless data base station having a smart antenna system
First Claim
1. A method of transmitting a downlink signal from a first communication station of a communication system to a remote communication device, the first communication station having a smart antenna system, the method comprising:
- providing a first set of sequential time intervals for the first communication station, each of the time intervals having a selected number of downlink conventional channels, and an associated conventional channel on an uplink conventional channel associated with each of the downlink conventional channels, each associated uplink conventional channel having predefined relationship to its associated downlink conventional channel;
providing one or more further sets of sequential time intervals, each set of the one or more further sets of sequential time intervals associated with one or more other communication stations of the communication system, the further sets of sequential time intervals for communication between the other communication stations and one or more other remote communication devices associated with the other communication stations;
receiving one or more uplink signals from one or more of the other, undesired remote communication devices as interference on one or more uplink channels associated with a first downlink conventional channel;
determining a downlink smart antenna processing strategy for transmitting from the first communication station in a non-directional manner on the first downlink conventional channel, the strategy including mitigating interference towards the one or more other remote communication devices to reduce with respect to the one or more undesired remote communication devices, a strength of a signal transmitted by the first communication station on the first downlink conventional channel, the downlink processing strategy using the received unlink signals as inputs to provide interference mitigation; and
transmitting a downlink signal in a non-directional manner from the first communication station on the first downlink conventional channel using the determined downlink processing strategy.
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Accused Products
Abstract
A method, communication apparatus, and machine-readable medium to transmit a downlink signal in a substantially non directional manner from a first communication station of a communication system on a first downlink conventional channel. The first communication station includes a smart antenna system having a plurality of antenna elements. The method includes providing a first set of sequential time intervals for the communication device for communication with its remote communication devices. One or more remote communication devices of the communication system known to the first communication station to be undesired remote communication devices transmit a signal on a first uplink conventional channel. The signals transmitted are received. In one version, they are received at the first communication station, and in another version, by another communication station of the communication system. The signal received are used to configure the smart antenna system for transmitting a downlink signal in a non-directional manner that includes mitigating interference towards the undesired remote communication devices on the first downlink conventional channel.
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Citations
61 Claims
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1. A method of transmitting a downlink signal from a first communication station of a communication system to a remote communication device, the first communication station having a smart antenna system, the method comprising:
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providing a first set of sequential time intervals for the first communication station, each of the time intervals having a selected number of downlink conventional channels, and an associated conventional channel on an uplink conventional channel associated with each of the downlink conventional channels, each associated uplink conventional channel having predefined relationship to its associated downlink conventional channel; providing one or more further sets of sequential time intervals, each set of the one or more further sets of sequential time intervals associated with one or more other communication stations of the communication system, the further sets of sequential time intervals for communication between the other communication stations and one or more other remote communication devices associated with the other communication stations; receiving one or more uplink signals from one or more of the other, undesired remote communication devices as interference on one or more uplink channels associated with a first downlink conventional channel; determining a downlink smart antenna processing strategy for transmitting from the first communication station in a non-directional manner on the first downlink conventional channel, the strategy including mitigating interference towards the one or more other remote communication devices to reduce with respect to the one or more undesired remote communication devices, a strength of a signal transmitted by the first communication station on the first downlink conventional channel, the downlink processing strategy using the received unlink signals as inputs to provide interference mitigation; and transmitting a downlink signal in a non-directional manner from the first communication station on the first downlink conventional channel using the determined downlink processing strategy. - 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, 25, 26, 27)
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28. A first communication station comprising:
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a smart antenna system to communicate with at least one remote communication device using a smart antenna processing strategy, the smart antenna system including a plurality of antenna elements; an uplink reception unit, coupled to the antenna elements to provide an uplink conventional channel associated with each of a plurality of downlink conventional channels, each unlink conventional channel having a predefined relationship to its associated downlink conventional channel, and receive one or more uplink signals from one or more undesired remote communication devices on one or more uplink conventional channels associated with a first downlink conventional channel; a processor, coupled to the uplink reception unit, the processor to determine a downlink smart antenna processing strategy for transmitting from the first communication station in a non-directional manner, the downlink processing strategy using the one or more received uplink signals, to generate interference mitigation towards the one or more undesired remote communication devices to reduce, on one or more uplink conventional channels of the one or more undesired remote communication devices, a strength of a signal transmitted by the first communication station on the first downlink conventional channel; and a downlink transmission unit, coupled to the antenna elements and to the processor, to provide the first downlink conventional channel to transmit a downlink signal in a non-directional manner from the first communication station using the determined downlink processing strategy, provide a selected number of downlink conventional channels of a first set of sequential time intervals for the first communication station, the first set including the first downlink conventional channel, and provide one or more additional sets of sequential time intervals, each associated with one or more other communication stations for communication between the other communication stations and one or more remote communication devices associated with the other communication stations. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36)
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37. A machine-readable medium having stored thereon information representing a set of machine-executable instructions, that, when executed by a machine, cause the machine to perform a method of transmitting a downlink signal from a first communication station of a communication system to a remote communication device, the first communication station having a smart antenna system, the method comprising:
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providing a first set of sequential time intervals for the first communication station, each of the time intervals having a selected number of downlink conventional channels, and an associated conventional channel on an unlink conventional channel associated with each of the downlink conventional channels, each associated uplink conventional channel having a predefined relationship to its associated downlink conventional channel; providing one or more further sets of sequential time intervals, each set of the one or more further sets of sequential time intervals associated with one or more other communication stations of the communication system, the further sets of sequential time intervals for communication between the other communication stations and one or more other remote communication devices associated with the other communication stations; receiving one or more unlink signals from one or more of the other, undesired remote communication devices as interference on one or more unlink channels associated with a first downlink conventional channel; determining a downlink smart antenna processing strategy for transmitting from the first communication station in a non-directional manner on the first downlink conventional channel, the strategy including mitigating interference towards the one or more other remote communication devices to reduce, with respect to the one or more undesired remote communication devices, a strength of a signal transmitted by the first communication station on the first downlink conventional channel, the downlink processing strategy using the received uplink signals as inputs to provide interference mitigation; and transmitting a downlink signal in a non-directional manner from the first communication station on the first downlink conventional channel using the determined downlink processing strategy. - View Dependent Claims (38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A method of transmitting a downlink signal in a non-directional manner from a first communication station having a smart antenna system on a first downlink conventional channel to a first remote communication device, while communicating with one or more other remote communication devices on the same first downlink conventional channel, the method comprising:
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receiving one or more uplink signals from the other remote communication devices; determining a downlink smart antenna processing strategy using the received uplink signals, the downlink processing strategy to be used to transmit from the first communication station in a non-directional manner on the first downlink conventional channel, and to transmit to the one or more other remote communication devices on the same first downlink conventional channel; transmitting a first downlink signal in a non-directional manner from the first communication station, and one or more other downlink signals to the one or more other remote communication devices, on the first downlink conventional channel using the determined downlink strategy; providing a set of sequential time intervals for the first communication station, each of the time intervals having a selected number of downlink conventional channels including the first downlink conventional channel, each of the downlink conventional channels further having an associated uplink conventional channel in the time intervals, each associated uplink conventional channel having a predefined relationship to its associated downlink conventional channel; and providing a set of further sequential time intervals associated with a different communication station, each of the further time intervals having a selected number of downlink conventional channels associated with the different communication station; wherein receiving the one or more uplink signals includes receiving on a first uplink channel associated with the first downlink conventional channel a second uplink signal from the second remote communication device transmitted at the first communication station, and wherein determining the downlink processing strategy includes using the received signals as an input to determine a downlink processing strategy to simultaneously (i) transmit downlink data to the second remote communication device in a directional manner, and (ii) transmit the first downlink signal to the first remote communication device in a manner that mitigates interference towards the second remote communication device on the first downlink conventional channel. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61)
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Specification