Wireless communication system and method for managing resource for interference coordination therein
First Claim
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1. A communication method of a macro base station, the communication method comprising:
- measuring, by the macro base station, a reference signal (RS) power transmitted by at least one terminal connected to a small cell base station;
determining, by the macro base station, an aggregated interference caused by the at least one terminal connected to the small cell base station, based on the RS power transmitted by the at least one terminal;
transmitting information on the aggregated interference to a higher node entity;
receiving information on an almost blank subframe (ABS) pattern, which is determined by the higher node entity based on the information on the aggregated interference, from the higher node entity; and
performing a scheduling based on the information on the ABS pattern,wherein the higher node entity comprises an entity higher than the macro base station.
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Abstract
A communication method of a base station is provided. The communication method of the base station includes determining, by the base station, an aggregate interference caused by a terminal in a heterogeneous cell, transmitting information about the aggregate interference to a higher layer node entity, receiving information about an almost blank subframe (ABS) pattern from the higher node entity, and configuring an ABS based on the information about the ABS pattern.
204 Citations
18 Claims
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1. A communication method of a macro base station, the communication method comprising:
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measuring, by the macro base station, a reference signal (RS) power transmitted by at least one terminal connected to a small cell base station; determining, by the macro base station, an aggregated interference caused by the at least one terminal connected to the small cell base station, based on the RS power transmitted by the at least one terminal; transmitting information on the aggregated interference to a higher node entity; receiving information on an almost blank subframe (ABS) pattern, which is determined by the higher node entity based on the information on the aggregated interference, from the higher node entity; and performing a scheduling based on the information on the ABS pattern, wherein the higher node entity comprises an entity higher than the macro base station. - View Dependent Claims (2, 3, 4)
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5. A communication method of a higher node entity, the communication method comprising:
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receiving information on an aggregated interference caused by at least one terminal connected to a small cell base station from at least one macro base station, the information on the aggregated interference is determined, by the at least one macro base station, based on a reference signal (RS) power transmitted by the at least one terminal connected to the small cell base station; determining an almost blank subframe (ABS) pattern based on the information on the aggregated interference; and transmitting information on the ABS pattern to the at least one macro base station. - View Dependent Claims (6, 7, 8, 9)
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10. A macro base station, comprising:
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a transceiver configured to transmit and receive a signal to and from other network entities; and a controller comprising a processor programmed to; measure a reference signal (RS) power transmitted by at least one terminal connected to a small cell base station, determine an aggregated interference caused by the at least one terminal connected to the small cell base station, based on the RS power transmitted by the at least one terminal, transmit information on the aggregated interference to a higher node entity, receive information on an almost blank subframe (ABS) pattern, which is determined by the higher node entity based on the information on the aggregated interference, from the higher node entity, and configure an ABS based on the information on the ABS pattern, wherein the higher node entity comprises an entity higher than the macro base station. - View Dependent Claims (11, 12, 13)
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14. A higher node entity, comprising:
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a transceiver configured to transmit and receive a signal to and from other network entities; and a controller including a processor programmed to; receive information on an aggregated interference caused by at least one terminal connected to a small cell base station from at least one macro base station, the information on the aggregated interference is determined, by the at least one macro base station, based on a reference signal (RS) power transmitted by the at least one terminal connected to the small cell base station, determine an almost blank subframe (ABS) pattern based on the information on the aggregated interference, and transmit information on the ABS pattern to the at least one macro base station. - View Dependent Claims (15, 16, 17, 18)
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Specification