Method and apparatus for power control and load balancing based on load estimation of neighbor cell in wireless communication system
First Claim
1. A method for operating a base station (BS) in a wireless communication system, the method comprising:
- selecting at least one base station neighboring on the base station; and
determining a power level and a handover terminal set including at least one terminal to be handed over from the base station to the neighboring base station based on an average load in the base station and the neighboring base station,wherein the average load is determined based on a number of overload users from among a first group of users serviced by the base station and a number of overload users from among a second group of users serviced by the neighboring base station wherein the average load is determined based on a first load value, a second load value and a third load value with respect to power controlled by the base station,wherein the first load value represents a number of overload terminals from among remaining terminals excepting terminals to be handed over from the base station to the neighboring base station from among the first group of terminals serviced by the base station,wherein the second load value represents a number of overload terminals from among a second group of terminals serviced by the neighboring base station, andwherein the third load value represents a number of terminals expected to be overloaded in the neighboring base station from among terminals to be handed over from the base station to the neighboring base station.
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Abstract
A Base Station (BS) operation method for reducing load terminals based on load estimation of a neighbor cell in a wireless communication system includes receiving information for estimating a load of a neighbor BS, determining whether to determine the power control and handover terminal set using the number of terminals serviced by the neighbor BS, the number of overload terminals among the terminals serviced by the neighbor BS, and the backoff counter value, and, when it is determined to determine a power control and handover terminal set, deciding the power control and handover terminal set to minimize load terminals, based on the first power variation and the second power variation.
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Citations
16 Claims
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1. A method for operating a base station (BS) in a wireless communication system, the method comprising:
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selecting at least one base station neighboring on the base station; and determining a power level and a handover terminal set including at least one terminal to be handed over from the base station to the neighboring base station based on an average load in the base station and the neighboring base station, wherein the average load is determined based on a number of overload users from among a first group of users serviced by the base station and a number of overload users from among a second group of users serviced by the neighboring base station wherein the average load is determined based on a first load value, a second load value and a third load value with respect to power controlled by the base station, wherein the first load value represents a number of overload terminals from among remaining terminals excepting terminals to be handed over from the base station to the neighboring base station from among the first group of terminals serviced by the base station, wherein the second load value represents a number of overload terminals from among a second group of terminals serviced by the neighboring base station, and wherein the third load value represents a number of terminals expected to be overloaded in the neighboring base station from among terminals to be handed over from the base station to the neighboring base station. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An apparatus of a base station (BS) in a wireless communication system, the apparatus comprising:
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a controller configured to select at least one base station neighboring on the base station, and determine a power level and a handover terminal set including at least one terminal to be handed over from the base station to the neighboring base station based on an average load in the base station and the neighboring base station, wherein the average load is determined based on a number of overload users from among a first group of users serviced by the base station and a number of overload users from among a second group of users serviced by the neighboring base station wherein the average load is determined based on a first load value, a second load value and a third load value with respect to power controlled by the base station, wherein the first load value represents a number of overload terminals from among remaining terminals excepting terminals to be handed over from the base station to the neighboring base station from among a first group of terminals serviced by the base station, wherein the second load value represents a number of overload terminals from among a second group of terminals serviced by the neighboring base station, and wherein the third load value represents a number of terminals expected to be overloaded in the neighboring base station from among terminals to be handed over from the base station to the neighboring base station. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification