Enhanced physical downlink control channel (ePDCCH) inter-cell interference coordination (ICIC)
First Claim
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1. A method for communicating enhanced physical downlink control channels (ePDCCHs) configured for inter-cell interference coordination (ICIC) for a plurality of cells in a physical resource block (PRB) from a node, comprising:
- mapping a serving cell control channel element (CCE) in a serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB;
transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to a coordination node, wherein the serving cell CCE is a localized CCE using a localized CCE to resource element (RE) common cell mapping pattern, and wherein transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to the coordination node includes a relative narrowband transmitter power (RNTP) per enhanced CCE (E-CCE) in an ePDCCH information element (IE) with a bitmap, wherein each position in the bitmap represents a E-CCE index nE-CCE value, for which a bit value represents RNTP (nE-CCE), where an index is associated with a set of E-CCE, numbered from 0 to NE-CCE,k−
1, wherein NE-CCE,k is a total number of E-CCE for a subframe k, and RNTP ( ) is a function of the E-CCE index nE-CCE;
transmitting the map of the serving cell CCE and the coordination cell CCE to a wireless device for use with inter-cell interference coordination (ICIC).
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Abstract
Technology for communicating enhanced physical downlink control channels (ePDCCHs) configured for inter-cell interference coordination (ICIC) for a plurality of cells in a physical resource block (PRB) is disclosed. One method can include a node mapping a serving cell control channel element (CCE) in an serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB. The node can transmit the map of the serving cell CCE and the coordination cell CCE to a wireless device.
17 Citations
19 Claims
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1. A method for communicating enhanced physical downlink control channels (ePDCCHs) configured for inter-cell interference coordination (ICIC) for a plurality of cells in a physical resource block (PRB) from a node, comprising:
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mapping a serving cell control channel element (CCE) in a serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB; transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to a coordination node, wherein the serving cell CCE is a localized CCE using a localized CCE to resource element (RE) common cell mapping pattern, and wherein transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to the coordination node includes a relative narrowband transmitter power (RNTP) per enhanced CCE (E-CCE) in an ePDCCH information element (IE) with a bitmap, wherein each position in the bitmap represents a E-CCE index nE-CCE value, for which a bit value represents RNTP (nE-CCE), where an index is associated with a set of E-CCE, numbered from 0 to NE-CCE,k−
1, wherein NE-CCE,k is a total number of E-CCE for a subframe k, and RNTP ( ) is a function of the E-CCE index nE-CCE;transmitting the map of the serving cell CCE and the coordination cell CCE to a wireless device for use with inter-cell interference coordination (ICIC). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. At least one non-transitory machine readable storage medium comprising a plurality of instructions that, when executed by one or more processors, perform the following:
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mapping a serving cell control channel element (CCE) in a serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB; transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to a coordination node, wherein the serving cell CCE is a localized CCE using a localized CCE to resource element (RE) common cell mapping pattern, and wherein transmitting the map of the serving cell CCE or the coordination cell CCE in the PRB to the coordination node includes a relative narrowband transmitter power (RNTP) per enhanced CCE (E-CCE) in an ePDCCH information element (IE) with a bitmap, wherein each position in the bitmap represents a E-CCE index nE-CCE value, for which a bit value represents RNTP (nE-CCE), where an index is associated with a set of E-CCE, numbered from 0 to NE-CCE,k−
1, wherein NE-CCE,k is a total number of E-CCE for a subframe k, and RNTP ( ) is a function of the E-CCE index nE-CCE;sending the map of the serving cell CCE and the coordination cell CCE to a wireless device for use with inter-cell interference coordination (ICIC).
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9. A node device of a node configured to communicate enhanced physical downlink control channels (ePDCCHs) configured for inter-cell interference coordination (ICIC) for a plurality of cells in a physical resource block (PRB), comprising:
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one or more antennas; a transceiver module configured to communicate with a wireless device and to send, via the one or more antennas, a map of a serving cell control channel element (CCE) associated with a serving cell ePDCCH in a PRB and a coordination cell CCE in a coordination cell ePDCCH in the PRB for use with inter-cell interference coordination (ICIC), wherein the map of the serving cell CCE or the coordination cell CCE in the PRB includes a relative narrowband transmitter power (RNTP) per enhanced CCE (E-CCE) in ePDCCH information element (IE) with a bitmap, wherein each position in the bitmap represents a E-CCE index nE-CCE value, for which a bit value represents RNTP (nE-CCE), where an index is associated with a set of E-CCE, numbered from 0 to NE-CCE,k−
1, wherein NE-CCE,k is a total number of E-CCE for a subframe k, and RNTP ( ) is a function of the E-CCE index nE-CCE. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification