System and method for resource allocation of a LTE network integrated with femtocells
First Claim
1. A method comprising:
- generating a wireless network model of a wireless network based at least in part on long term evolution (LTE) specifications, wherein the wireless network model includes a plurality of physical resource blocks (PRBs), wherein the plurality of PRBs are associated with a plurality of time units, a plurality of subcarriers, a plurality of base stations, and a plurality of channels;
determining channel attenuations for the plurality of channels;
assigning a plurality of mobile devices a PRB so that a data rate of a mobile device is in accordance with a fairness objective; and
simulating transmission of data from a first mobile device to a second mobile device using the wireless network model with the assigned PRB.
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Accused Products
Abstract
A resource scheduling and power allocation technique is provided for a LTE radio network integrated with femtocells. The technique utilizes a tri-phase approach that includes a stochastic geometric model of an exemplary radio network that generates a channel attenuation matrix for each channel at each PRB. A resource scheduling and power allocation procedure determines a near optimal assignment of mobile user to PRBs based on the channel attenuations, potential data rates, and transmit power subject to maximizing the data rates in accordance with a fairness objective. A discrete-event simulation procedure simulates the end-to-end transmission of the data packets in a packet-switch network in accordance with the assignments to analyze the behavior of the overall network.
13 Citations
17 Claims
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1. A method comprising:
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generating a wireless network model of a wireless network based at least in part on long term evolution (LTE) specifications, wherein the wireless network model includes a plurality of physical resource blocks (PRBs), wherein the plurality of PRBs are associated with a plurality of time units, a plurality of subcarriers, a plurality of base stations, and a plurality of channels; determining channel attenuations for the plurality of channels;
assigning a plurality of mobile devices a PRB so that a data rate of a mobile device is in accordance with a fairness objective; and
simulating transmission of data from a first mobile device to a second mobile device using the wireless network model with the assigned PRB. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A non-transitory computer-readable medium having instructions stored thereon, the instructions comprising:
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instructions to generate a radio air interface that includes a plurality of mobile devices, a plurality of base stations, a subset of base stations including femtocells, and a plurality of resource units, wherein a resource unit includes a plurality of time slots and subcarrier frequencies and a plurality of channels; wherein the radio air interface is based at least in part on long term evolution (LTE) specifications; instructions to generate resource unit assignments, wherein a resource unit assignment assigns a mobile device to a resource unit to provide a data rate for the mobile device in accordance with a fairness objective; and instructions to simulate transmission of data using the radio air interface in accordance with the resource unit assignments. - View Dependent Claims (8, 9, 10, 11, 12)
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13. An apparatus comprising:
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a memory; and a processor operatively coupled to the memory and configured to; identify a plurality of resource units, wherein a resource unit includes a set of time units and subcarriers; determine a maximum data rate for a mobile device in a wireless network that includes a plurality of mobile devices, wherein the maximum data rate is determined based at least in part on channel attenuations associated with channels for the resource unit, and wherein the determining is independent of assignments of the mobile devices to physical resource blocks (PRBs); assign a mobile device to a PRB based at least in part on the maximum data rate for the mobile device, wherein the assigning is also based at least in part on a fairness constraint for all of the mobile devices; and simulate data packet transmissions between the mobile device and a second mobile device in accordance with the PRB assigned to the mobile device, wherein the mobile device transmits through a femtocell base station and the second mobile device transmits through a long term evolution (LTE)-based base station. - View Dependent Claims (14, 15, 16, 17)
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Specification