System and method for interference mitigation for wireless communication
First Claim
1. A method for providing wireless communication, the method comprising:
- providing a plurality of frequency channels in various portions of a service area, wherein a first frequency channel of the plurality of frequency channels is provided in each of two or more adjacent portions of the service area;
activating the first frequency channel in parallel with respect to the two or more adjacent portions of the service area by selecting network nodes for parallel communication links as a function of spatial characteristic groupings;
determining a spatial signature for network nodes operable in the service area, wherein the network nodes selected for parallel communication links have a compatible spatial signature;
determining compatibility of the spatial signatures by correspondence to a schedule of active radios vector; and
weighting a plurality of schedule of active radios vectors such that a heaviest weighted schedule of active radios vectors provides for a highest number of parallel communication links, wherein the plurality of schedule of active radios vectors comprises the schedule of active radios vector.
11 Assignments
0 Petitions
Accused Products
Abstract
Disclosed are systems and methods which provide interference mitigation by making alternative resources available within areas served by wireless communication links. Embodiments provide multiple channel availability in establishing wireless communication links to facilitate interference mitigation. Time domain techniques, spatial processing techniques, and/or frequency domain techniques may be implemented for spectrum management. Embodiments provide wireless base station configurations in which all or a plurality of base station sectors use a same frequency channel and/or in which each sector or a plurality of sectors use all frequency channels. Multi-channel strategies may be implemented such as to provide dynamic selection of a “best” frequency channel, to provide transmission of identical data on multiple channels for combining/selection at the receiver, and/or to provide for dividing the data for transmission on multiple channels.
122 Citations
22 Claims
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1. A method for providing wireless communication, the method comprising:
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providing a plurality of frequency channels in various portions of a service area, wherein a first frequency channel of the plurality of frequency channels is provided in each of two or more adjacent portions of the service area; activating the first frequency channel in parallel with respect to the two or more adjacent portions of the service area by selecting network nodes for parallel communication links as a function of spatial characteristic groupings; determining a spatial signature for network nodes operable in the service area, wherein the network nodes selected for parallel communication links have a compatible spatial signature; determining compatibility of the spatial signatures by correspondence to a schedule of active radios vector; and weighting a plurality of schedule of active radios vectors such that a heaviest weighted schedule of active radios vectors provides for a highest number of parallel communication links, wherein the plurality of schedule of active radios vectors comprises the schedule of active radios vector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a plurality of spatial signature vectors setting forth information for each one of the subscriber stations with respect to the first set of radios, wherein each of the subscriber stations has a spatial signature vector of the plurality of spatial signature vectors associated therewith; wherein the spatial signature vectors provide information with respect to a combination of radios of the first set of radios that are acceptable to be activated in parallel when a radio of the first set of radios is in information communication with a corresponding one of the subscriber stations. - View Dependent Claims (10, 11)
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12. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a plurality of spatial signature vectors setting forth information for each one of the subscriber stations with respect to the first set of radios, wherein each of the subscriber stations has a spatial signature vector of the plurality of spatial signature vectors associated therewith; wherein vectors of the vector array are assigned a weight corresponding to a number of radios that are activated in parallel associated therewith. - View Dependent Claims (13)
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14. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a plurality of spatial signature vectors setting forth information for each one of the subscriber stations with respect to the first set of radios, wherein each of the subscriber stations has a spatial signature vector of the plurality of spatial signature vectors associated therewith; a scheduler operable to select, as a function of the spatial signature vectors, a vector from the vector away identifying a combination of radios for use in providing communication links to ones of the subscriber stations, wherein the scheduler updates the vector away to indicate the vector is active. - View Dependent Claims (15)
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16. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel, wherein at least a second group of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a second frequency channel, such that the first and second frequency channels are provided in overlapping portions of the service area; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a channel selection controller dynamically selecting a frequency channel of the first and second frequency channels having a highest channel quality metric associated therewith for use in communicating with a subscriber station.
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17. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel, wherein at least a second group of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a second frequency channel, such that the first and second frequency channels are provided in overlapping portions of the service area; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a controller selecting a valid frame from frames simultaneously transmitted using the first and second frequency channels.
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18. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel, wherein at least a second group of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a second frequency channel, such that the first and second frequency channels are provided in overlapping portions of the service area; a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; and a controller deinterleaving a frame from data simultaneously transmitted using the first and second frequency channels.
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19. A wireless communication system comprising:
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a plurality of radios disposed to provide wireless communication links with respect to different portions of a service area, wherein at least a first set of radios of the plurality of radios disposed to provide wireless communication links with respect to the different portions of the service area utilize a first frequency channel; and a vector away setting forth a plurality of combinations of radios of the first set of radios that are activated in parallel to provide simultaneous communication links with respect to subscriber stations operable in the service area; wherein the plurality of radios comprise 802.11 compliant access points. - View Dependent Claims (20, 21, 22)
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Specification