Multiple carrier indication and downlink control information interaction
First Claim
Patent Images
1. A method for wireless communication performed by a user equipment (UE), comprising:
- receiving a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user- specific search spaces;
receiving a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and
determining, based on the cross-carrier configuration, whether control information for the UE is present in a control information format carried on a second component carrier by decoding the plurality of search spaces according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator.
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Abstract
Methods, systems, apparatus and computer program products are provided to facilitate the configuration and allocation of cross-carrier control information associated with transmissions of a wireless communication system. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the disclosed subject matter. Therefore, it is to be understood that it should not be used to interpret or limit the scope or the meaning of the claims.
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Citations
80 Claims
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1. A method for wireless communication performed by a user equipment (UE), comprising:
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receiving a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user- specific search spaces; receiving a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and determining, based on the cross-carrier configuration, whether control information for the UE is present in a control information format carried on a second component carrier by decoding the plurality of search spaces according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. An apparatus for wireless communication, comprising:
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means for receiving a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user- specific search spaces; means for receiving a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and means for determining, based on the cross-carrier configuration, whether control information for the apparatus is present in a control information format carried on a second component carrier by decoding the plurality of search spaces according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator.
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21. An apparatus for wireless communication by a user equipment (UE), comprising:
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a processor; and a memory comprising processor executable code that, when executed by the processor, configures the apparatus to; receive a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; receive a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and determine, based on the cross-carrier configuration, whether control information for the UE is present in a control information format carried on a second component carrier by decoding the plurality of search spaces according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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40. A computer program product for wireless communication by a user equipment (UE), embodied on a non-transitory computer readable storage medium, comprising:
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program code for receiving a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; program code for receiving a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of a plurality of component carriers; and program code for determining , based on the cross-carrier configuration, whether control information for the UE is present in a control information format carried on a second component carrier by decoding the plurality of search spaces according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator.
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41. A wireless communication method, comprising:
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transmitting a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; and transmitting, to a user equipment (UE), a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and transmitting control information for the UE in a control information format carried on a second component carrier, the control information encoded according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59)
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60. An apparatus for wireless communication, comprising:
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means for transmitting a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; means for transmitting, to a user equipment (UE), a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and transmitting control information for the UE in a control information format carried on a second component carrier, the control information encoded according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator.
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61. An apparatus for wireless communication, comprising:
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a processor; and a memory comprising processor executable code that, when executed by the processor, configures the apparatus to; transmit a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; transmit, to a user equipment (UE), a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and transmit control information for the UE in a control information format carried on a second component carrier, the control information encoded according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79)
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80. A computer program product for wireless communication, embodied on a non-transitory computer readable storage medium, comprising:
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program code for transmitting a plurality of component carriers configured for a wireless communication device, the plurality of component carriers comprising a plurality of search spaces comprising one or more common search spaces and a plurality of user-specific search spaces; and program code for transmitting, to a user equipment (UE), a cross-carrier configuration comprising an indicator of cross-carrier operation for a first component carrier of the plurality of component carriers; and program code for transmitting control information for the UE in a control information format carried on a second component carrier, the control information encoded according to a first set of control information formats associated with the one or more common search spaces and a second set of control information formats associated with the plurality of user-specific search spaces, the first set of control information formats including at least a first downlink control information (DCI) format without a carrier indicator and the second set of control information formats including at least the first DCI format with a carrier indicator.
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Specification