Channel Assignment Based on Spatial Strategies in a Wireless Network Using Adaptive Antenna Arrays
First Claim
1. A method comprising:
- assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, the channel co-spatial constraints comprising a limitation on the quantity of radios that can share the respective channel using spatial division multiple access;
receiving a request from a user terminal to communicate using a traffic communication channel of the base station;
measuring a quality parameter of the request received from the user terminal;
deriving a co-spatial constraint for the user terminal based on the quality parameter, the user terminal co-spatial constraint comprising a limitation on the quantity of additional radios with which the user can share a conventional traffic communications channel using spatial division multiple access;
assigning the user terminal co-spatial constraint to the user terminal; and
assigning the user terminal to one of the plurality of traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.
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Abstract
Channels are assigned based on co-spatial constraints in wireless network using spatial division multiple access. In one example, the invention includes assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, and receiving a request from a user terminal to communicate using a traffic communication channel of the base station. The invention further includes measuring a quality parameter of the request deriving a co-spatial constraint for the user terminal, assigning the user terminal co-spatial constraint to the user terminal, and assigning the user terminal to a traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint.
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Citations
19 Claims
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1. A method comprising:
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assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, the channel co-spatial constraints comprising a limitation on the quantity of radios that can share the respective channel using spatial division multiple access; receiving a request from a user terminal to communicate using a traffic communication channel of the base station; measuring a quality parameter of the request received from the user terminal; deriving a co-spatial constraint for the user terminal based on the quality parameter, the user terminal co-spatial constraint comprising a limitation on the quantity of additional radios with which the user can share a conventional traffic communications channel using spatial division multiple access; assigning the user terminal co-spatial constraint to the user terminal; and assigning the user terminal to one of the plurality of traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A machine-readable medium having stored thereon data representing instructions, which if executed by the machine, cause the machine to perform operations comprising:
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assigning a co-spatial constraint to each of a plurality of conventional traffic communications channels of a base station, the channel co-spatial constraints comprising a limitation on the quantity of radios that can share the respective channel using spatial division multiple access; receiving a request from a user terminal to communicate using a traffic communication channel of the base station; measuring a quality parameter of the request received from the user terminal; deriving a co-spatial constraint for the user terminal based on the quality parameter, the user terminal co-spatial constraint comprising a limitation on the quantity of additional radios with which the user can share a conventional traffic communications channel using spatial division multiple access; assigning the user terminal co-spatial constraint to the user terminal; and assigning the user terminal to one of the plurality of traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint. - View Dependent Claims (10, 11)
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12. A communications device comprising:
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a receiver to receive a request from a user terminal to communicate using a traffic communication channel of a base station; and a processor communicatively coupled to the receiver to; assign a co-spatial constraint to each of a plurality of conventional traffic communications channels of the base station, the channel co-spatial constraints comprising a limitation on the quantity of radios that can share the respective channel using spatial division multiple access; measure a quality parameter of the request received from the user terminal; derive a co-spatial constraint for the user terminal based on the quality parameter, the user terminal co-spatial constraint comprising a limitation on the quantity of additional radios with which the user can share a conventional traffic communications channel using spatial division multiple access; assign the user terminal co-spatial constraint to the user terminal; and assign the user terminal to one of the plurality of traffic communication channels having a channel co-spatial constraint that is no less than the user terminal co-spatial constraint and that has no more assigned radios than permitted by the channel co-spatial constraint. - View Dependent Claims (13, 14)
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15. A method comprising:
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measuring a quality parameter of a signal received from a second radio at a first radio; deriving a co-spatial constraint for the second radio based on the quality parameter, the co-spatial constraint comprising a limitation on the quantity of additional radios with which the second radio can share one of a plurality of conventional communications channels using spatial division multiple access; assigning the co-spatial constraint to the second radio; assigning the second radio to one of a plurality of traffic communication channels by first assigning the second radio to an unused channel, if available, and if not available then by second assigning the second radio to a channel to which only one other radio is already assigned, if available, and if not available then by third assigning the second radio to a channel to which only two other radios are already assigned, if available, wherein the number of other radios already assigned does not exceed the co-spatial constraint; and sharing each traffic communication channel to which more than one radio is assigned using spatial division multiple access. - View Dependent Claims (16, 18, 17, 19)
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Specification