Method and system for switching antenna and channel assignments in broadband wireless networks
First Claim
1. A method for assigning channels to support communication between subscribers and a base station in a broadband wireless network, comprising:
- for each of multiple antenna resources at the base station, obtaining one or more channel characteristics for each channel hosted by each antenna resource, the channel characteristics indicative of reception quality for a corresponding channel; and
assigning one or more channels to subscribers based on the one or more channel characteristics that are obtained.
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Accused Products
Abstract
A method and apparatus for antenna switching, grouping, and channel assignments in wireless communication systems. The invention allows multiuser diversity to be exploited with simple antenna operations, therefore increasing the capacity and performance of wireless communications systems. Channel characteristics indicative of signal reception quality for downlink or bi-directional traffic for each channel/antenna resource combination are measured or estimated at a subscriber. Corresponding channel characteristic information is returned to the base station. Channel characteristics information may also be measured or estimated for uplink or bi-directional signals received at each of multiple receive antenna resources. The base station employs channel allocation logic to assign uplink, downlink and/or bi-directional channels for multiple subscribers based on channel characteristics measured and/or estimated for the uplink, downlink and/or bi-directional channels.
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Citations
32 Claims
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1. A method for assigning channels to support communication between subscribers and a base station in a broadband wireless network, comprising:
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for each of multiple antenna resources at the base station, obtaining one or more channel characteristics for each channel hosted by each antenna resource, the channel characteristics indicative of reception quality for a corresponding channel; and
assigning one or more channels to subscribers based on the one or more channel characteristics that are obtained. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A base station, comprising:
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multiple antenna resources to support wireless communications system transmissions;
a transmission module to generate signals over various downlink or bi-directional channels via which data may be transmitted via the multiple antenna resources to multiple subscribers;
a reception module to extract data from signals received at the multiple antenna resources over various uplink or the bi-directional channels from the subscribers; and
channel allocation logic to assign at least one of uplink, downlink and the bi-directional channels for the multiple subscribers based on channel characteristics obtained for the uplink, downlink and/or bi-directional channels. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A wireless communications system, comprising:
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a plurality of subscriber units, each configured to support wireless communication; and
a base station including, multiple antenna resources, including transmit antenna resources to transmit wireless communication transmission signals and receive antenna resource to receive wireless communication transmission signals;
a transmission module, to generate signals over various downlink or bi-directional channels via which data may be transmitted via the transmit antenna resources to the plurality of subscribers;
a reception module, to extract data from signals received at the receive antenna resources over various uplink or the bi-directional channels from the plurality of subscribers; and
channel allocation logic to assign at least one of uplink, downlink and the bi-directional channels for the plurality of subscribers based on channel characteristics measured and/or estimated for the uplink, downlink and/or bi-directional channels, each of the plurality of subscribers to measure or estimate channel characteristic information indicative of channel signal quality at the subscriber and provide feedback to the base station containing the channel characteristic information. - View Dependent Claims (30, 31, 32)
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Specification