Method and apparatus for performing interference coordination in wireless communication system
First Claim
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1. A method for performing interference coordination in a wireless communication system, by a user equipment (UE), the method comprising:
- transmitting, by the UE, measurement results on neighboring cells, to a serving cell,wherein the measurement results on the neighboring cells are shared with each of the neighboring cells, andwherein the number of overlapped UEs between the serving cell and each of the neighboring cells is calculated, based on the shared measurement results on the neighboring cells;
receiving, by the UE, information on cell grouping of the neighboring cells,wherein the cell grouping is performed between the serving cell and a neighboring cell, based on the number of overlapped UEs between the serving cell and the neighboring cell;
receiving a time division duplex (TDD) reference configuration to minimize conflicts between cell groups and a shift value to be selected in subframes which are changed by the cell grouping, from the serving cell;
acquiring different TDD configurations by using the TDD reference configuration and the shift value for the cell groups; and
receiving a signal to be applied with at least one of a certain sub-band, a subframe shift, or an orthogonal frequency division multiplexing (OFDM) symbol shift according to a cell group which is defined by the cell grouping.
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Abstract
A method for and apparatus for performing interference coordination in a wireless communication system is provided. A wireless device may transmit measurement results on neighboring cells; receive information of grouping of the neighboring cells based on the measurement results; and receive a signal to be applied with a different sub-band, a subframe shift, or a Orthogonal frequency division multiplexing (OFDM) symbol shift according to the information of grouping from each cell of the neighboring cells.
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Citations
14 Claims
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1. A method for performing interference coordination in a wireless communication system, by a user equipment (UE), the method comprising:
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transmitting, by the UE, measurement results on neighboring cells, to a serving cell, wherein the measurement results on the neighboring cells are shared with each of the neighboring cells, and wherein the number of overlapped UEs between the serving cell and each of the neighboring cells is calculated, based on the shared measurement results on the neighboring cells; receiving, by the UE, information on cell grouping of the neighboring cells, wherein the cell grouping is performed between the serving cell and a neighboring cell, based on the number of overlapped UEs between the serving cell and the neighboring cell; receiving a time division duplex (TDD) reference configuration to minimize conflicts between cell groups and a shift value to be selected in subframes which are changed by the cell grouping, from the serving cell; acquiring different TDD configurations by using the TDD reference configuration and the shift value for the cell groups; and receiving a signal to be applied with at least one of a certain sub-band, a subframe shift, or an orthogonal frequency division multiplexing (OFDM) symbol shift according to a cell group which is defined by the cell grouping. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless device for performing interference coordination in a wireless communication system, the wireless device comprising:
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a transceiver configured to transmit and receive a radio signal; and a processor operatively coupled to the transceiver, wherein the processor is configured to; control the transceiver to transmit measurement results on neighboring cells, to a serving cell, wherein the measurement results on the neighboring cells are shared with each of the neighboring cells, and wherein the number of overlapped UEs between the serving cell and each of the neighboring cells is calculated, based on the shared measurement results on the neighboring cells, control the transceiver to receive information on cell grouping of the neighboring cells, wherein the cell grouping is performed between the serving cell and a neighboring cell, based on the number of overlapped UEs between the serving cell and the neighboring cell, control the transceiver to receive a time division duplex (TDD) reference configuration to minimize conflicts between cell groups and a shift value to be selected in subframes which are changed by the cell grouping, from the serving cell, acquiring different TDD configurations by using the TDD reference configuration and the shift value for the cell groups, and control the transceiver to receive a signal to be applied with at least one of a certain sub-band, a subframe shift, or an orthogonal frequency division multiplexing (OFDM) symbol shift according to a cell group which is defined by the cell grouping. - View Dependent Claims (10, 11, 12, 13, 14)
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Specification