Selecting a cell identifier based on a downlink control information
First Claim
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1. A method of wireless communications, comprising:
- receiving, by a user equipment (UE), a signal including downlink control information (DCI); and
selecting, by the UE, one of a plurality of cell identifiers, which identify a plurality of cells, based on one or more properties associated with the DCI, wherein the one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the one of the plurality of cell identifiers is selected based on at least two of a type of format of the DCI, a subframe type in which the DCI is received, or a set of candidate control channels (CCEs) in which the DCI is received;
wherein the DCI is received in an enhanced physical download control channel (ePDCCH) scrambled with an ePDCCH scrambling identifier, andwherein the selecting the one of a plurality of cell identifiers includes determining the type of format of the DCI and selecting the selected cell identifier based on the ePDCCH scrambling identifier.
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Abstract
A method, an apparatus, and a computer program product for wireless communication are provided in which a cell identifier is selected based on one or more properties associated with received downlink control information (DCI), where the properties may not be exclusively associated with determining a cell identifier. The cell identifier may be selected from a plurality of cell identifiers received through radio resource control signaling. The properties of the DCI may include a type of download control channel, a type of subframe and a type of DCI format used to provide the DCI.
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Citations
49 Claims
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1. A method of wireless communications, comprising:
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receiving, by a user equipment (UE), a signal including downlink control information (DCI); and selecting, by the UE, one of a plurality of cell identifiers, which identify a plurality of cells, based on one or more properties associated with the DCI, wherein the one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the one of the plurality of cell identifiers is selected based on at least two of a type of format of the DCI, a subframe type in which the DCI is received, or a set of candidate control channels (CCEs) in which the DCI is received;
wherein the DCI is received in an enhanced physical download control channel (ePDCCH) scrambled with an ePDCCH scrambling identifier, andwherein the selecting the one of a plurality of cell identifiers includes determining the type of format of the DCI and selecting the selected cell identifier based on the ePDCCH scrambling identifier. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:
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means for receiving a signal including downlink control information (DCI; and means for selecting one of a plurality of cell identifiers, which identify a plurality of cells, based on one or more properties associated with the DCI, wherein the one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the means for selecting is configured to select the one of the plurality of cell identifiers based on at least two of a type of format of the DCI, a subframe type in which the DCI is received, or a set of candidate control channels (CCEs) in which the DCI is received;
wherein the DCI is received in an enhanced physical download control channel (ePDCCH) scrambled with an ePDCCH scrambling identifier, andwherein the means for selecting is configured to determine the type of format of the DCI and select the selected cell identifier based on the ePDCCH scrambling identifier. - View Dependent Claims (9, 10, 11, 12, 13)
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14. An apparatus for wireless communication, the apparatus being a user equipment (UE), comprising:
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a memory; and at least one processor coupled to the memory and configured to; receive a signal including downlink control information (DCI); and select one of a plurality of cell identifiers, which identify a plurality of cells, based on one or more properties associated with the DCI, wherein the one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the at least on processor configured to select the one of the plurality of cell identifiers based on at least two of a type of format of the DCI, a subframe type in which the DCI is received, or a set of candidate control channels (CCEs) in which the DCI is received;
wherein the DCI is received in an enhanced physical download control channel (ePDCCH) scrambled with an ePDCCH scrambling identifier, andwherein the at least one processor is further configured to determine the type of format of the DCI and select the selected cell identifier based on the ePDCCH scrambling identifier.
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15. A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
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receiving, by a user equipment (UE), a signal including downlink control information (DCI); and selecting, by the UE, one of a plurality of cell identifiers, which identify a plurality of cells, based on one or more properties associated with the DCI, wherein the one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the one of the plurality of cell identifiers is selected based on at least two of a type of format of the DCI, a subframe type in which the DCI is received, or a set of candidate control channels (CCEs) in which the DCI is received;
wherein the DCI is received in an enhanced physical download control channel (ePDCCH) scrambled with an ePDCCH scrambling identifier, andwherein the selecting the one of a plurality of cell identifiers includes determining the type of format of the DCI and selecting the selected cell identifier based on the ePDCCH scrambling identifier.
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16. A method of wireless communications, comprising:
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receiving a signal including downlink control information (DCI) including an uplink grant, wherein the DCI is received in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); determining a location of a Hybrid Automatic Repeat Request (HARQ) indicator based on the uplink grant; selecting one of a plurality of cell identifiers based on the DCI; and receiving an acknowledgement or a negative acknowledgement based on the selected cell identifier; wherein the determining includes; determining whether the grant is provided in the PDCCH or in the ePDCCH; determining the location of the HARQ indicator based on at least two of a DCI format type, subframe type, PDCCH type, and search space partitioning; and identifying the HARQ indicator in an enhanced physical HARQ indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH. - View Dependent Claims (17)
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18. An apparatus for wireless communication, comprising:
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means for receiving a signal including downlink control information (DCI) including an uplink grant, wherein the DCI is received in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); means for determining a location of a Hybrid Automatic Repeat Request (HARQ) indicator based on the uplink grant, wherein the means for determining is configured to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the location of the HARQ indicator based on at least two of a DCI format type, subframe type, PDCCH type, and search space partitioning; and identify the HARQ indicator in an enhanced physical HARQ indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH; means for selecting one of a plurality of cell identifiers based on the DCI; wherein the means for receiving is further configured to receive an acknowledgement or a negative acknowledgement based on the selected cell identifier. - View Dependent Claims (19)
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20. An apparatus for wireless communication, comprising:
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a memory; and at least one processor coupled to the memory and configured to; receive a signal including downlink control information (DCI) including an uplink grant, wherein the DCI is received in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); determine a location of a Hybrid Automatic Repeat Request (HARQ) indicator based on the uplink grant; select one of a plurality of cell identifiers based on the DCI; and receive an acknowledgement or a negative acknowledgement based on the selected cell identifier; wherein the at least one processor configured to determine the location is configured to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the location of the HARQ indicator based on at least two of a DCI format type, subframe type, PDCCH type, and search space partitioning; and identify the HARQ indicator located in an enhanced physical HARQ indicator channel (PHICH) in a data region when the grant is provided in the ePDCCH. - View Dependent Claims (21)
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22. A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code to:
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receive a signal including downlink control information (DCI) including an uplink grant, wherein the DCI is received in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); determine a location of a Hybrid Automatic Repeat Request (HARQ) indicator based on the uplink grant select one of a plurality of cell identifiers based on the DCI; and receive an acknowledgement or a negative acknowledgement based on the selected cell identifier; wherein the code to determine the location comprises code to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the location of the HARQ indicator based on at least two of a DCI format type, subframe type, PDCCH type, and search space partitioning; and identify the HARQ indicator in an enhanced physical HARQ indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH. - View Dependent Claims (23)
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24. A method of wireless communications, comprising:
- configuring one or more properties of downlink control information (DCI), wherein a user equipment (UE) is adapted to determine a cell identifier from a plurality of cell identifiers, which identify a plurality of cells, based on the configured one or more properties, and wherein the configured one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the cell identifier of the plurality of cell identifiers is signaled based on at least two of a type of format of the DCI, a subframe type in which the DCI is transmitted, or a set of candidate control channels (CCEs) in which the DCI is transmitted;
wherein the configuring the one or more properties of the DCI includes configuring the type of format of the DCI, transmitting the DCI in an enhanced physical downlink control channel (ePDCCH) that is scrambled with an ePDCCH scrambling identifier, wherein the cell identifier is the ePDCCH scrambling identifier; andtransmitting a signal including the DCI to the UE. - View Dependent Claims (25, 26, 27, 28, 29, 30)
- configuring one or more properties of downlink control information (DCI), wherein a user equipment (UE) is adapted to determine a cell identifier from a plurality of cell identifiers, which identify a plurality of cells, based on the configured one or more properties, and wherein the configured one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the cell identifier of the plurality of cell identifiers is signaled based on at least two of a type of format of the DCI, a subframe type in which the DCI is transmitted, or a set of candidate control channels (CCEs) in which the DCI is transmitted;
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31. An apparatus for wireless communication, comprising:
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means for configuring one or more properties of downlink control information (DCI), wherein a user equipment (UE) is adapted to determine a cell identifier from a plurality of cell identifiers, which identify a plurality of cells, based on the configured one or more properties, and wherein the configured one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the cell identifier of the plurality of cell identifiers is signaled based on at least two of a type of format of the DCI, a subframe type in which the DCI is transmitted, or a set of candidate control channels (CCEs) in which the DCI is transmitted;
wherein the means for configuring the one or more properties of the DCI is configured to configure the format type of the DCI; andmeans for transmitting the DCI in an enhanced physical download control channel (ePDCCH) that is scrambled with an ePDCCH scrambling identifier, wherein the cell identifier is the ePDCCH scrambling identifier; wherein the means for transmitting is further configured to transmit a signal including the DCI to the UE. - View Dependent Claims (32, 33, 34, 35, 36, 37)
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38. An apparatus for wireless communication, comprising:
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a memory; and at least one processor coupled to the memory and configured to; configure one or more properties of downlink control information (DCI), wherein a user equipment (UE) is adapted to determine a cell identifier from a plurality of cell identifiers, which identify a plurality of cells, based on the configured one or more properties, and wherein the configured one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the cell identifier of the plurality of cell identifiers is signaled based on at least two of a type of format of the DCI, a subframe type in which the DCI is transmitted, or a set of candidate control channels (CCEs) in which the DCI is transmitted;
wherein configuring the one or more properties of the DCI includes configuring the type of format of the DCI, transmitting the DCI in an enhanced physical downlink control channel (ePDCCH) that is scrambled with an ePDCCH scrambling identifier, wherein the cell identifier is the ePDCCH scrambling identifier andtransmit a signal including the DCI to the UE.
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39. A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code for:
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configuring one or more properties of downlink control information (DCI), wherein a user equipment (UE) is adapted to determine a cell identifier from a plurality of cell identifiers, which identify a plurality of cells, based on the configured one or more properties, and wherein the configured one or more properties include at least one of information included in the DCI or information associated with communication of the DCI and are not exclusively associated with determining a cell identifier, wherein the cell identifier of the plurality of cell identifiers is signaled based on at least two of a type of format of the DCI, a subframe type in which the DCI is transmitted, or a set of candidate control channels (CCEs) in which the DCI is transmitted;
wherein configuring the one or more properties of the DCI includes configuring the type of format of the DCI, transmitting the DCI in an enhanced physical downlink control channel (ePDCCH) that is scrambled with an ePDCCH scrambling identifier, wherein the cell identifier is the ePDCCH scrambling identifier andtransmitting a signal including the DCI to the UE.
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40. A method of wireless communications, comprising:
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transmitting a signal including downlink control information (DCI) that includes an uplink grant to a user equipment (UE), wherein the DCI is transmitted in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); and transmitting an acknowledgement (ACK) or a negative acknowledgement (NACK), wherein the transmitting of the ACK or the NACK comprises; determining whether the grant is provided in the PDCCH or in the ePDCCH; determining the DCI format type and whether additional bits are available in the DCI format; and transmitting the ACK or the NACK in an enhanced physical Hybrid Automatic Repeat Request (HARQ) indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH based on the DCI format type and the additional bits available in the DCI format. - View Dependent Claims (41, 42)
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43. An apparatus for wireless communication, comprising:
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means for transmitting a signal including downlink control information (DCI) that includes an uplink grant to a user equipment (UE), wherein the DCI is transmitted in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); and means for transmitting an acknowledgement (ACK) or a negative acknowledgement (NACK), wherein the means for transmitting the ACK or the NACK is configured to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the DCI format type and whether additional bits are available in the DCI format; and transmit the ACK or the NACK in an enhanced physical Hybrid Automatic Repeat Request (HARQ) indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH based on the DCI format type and the additional bits available in the DCI format. - View Dependent Claims (44, 45)
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46. An apparatus for wireless communication, comprising:
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a memory; and at least one processor coupled to the memory and configured to; transmit a signal including downlink control information (DCI) that includes an uplink grant to a user equipment (UE), wherein the DCI is transmitted in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); and transmit an acknowledgement (ACK) or a negative acknowledgement (NACK), wherein the at least one processor configured to transmit the ACK or the NACK is configured to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the DCI format type and whether additional bits are available in the DCI format; and transmit the ACK or the NACK in an enhanced physical Hybrid Automatic Repeat Request (HARQ) indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH based on the DCI format type and the additional bits available in the DCI format. - View Dependent Claims (47)
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48. A non-transitory computer-readable medium storing computer executable code for wireless communication, comprising code to:
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transmit a signal including downlink control information (DCI) that includes an uplink grant to a user equipment (UE), wherein the DCI is transmitted in one of a physical download control channel (PDCCH) or an enhanced PDCCH (ePDCCH); and transmit an acknowledgement (ACK) or a negative acknowledgement (NACK), the code to transmit the ACK or the NACK comprises code to; determine whether the grant is provided in the PDCCH or in the ePDCCH; determine the DCI format type and whether additional bits are available in the DCI format; and transmit the ACK or the NACK in an enhanced physical Hybrid Automatic Repeat Request (HARQ) indicator channel (PHICH) located in a data region when the grant is provided in the ePDCCH based on the DCI format type and the additional bits available in the DCI format. - View Dependent Claims (49)
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Specification