System and method for managing invalid reference subframes for channel state information feedback
First Claim
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1. A method for transmitting measurement reports on an uplink, comprising:
- configuring, at a user equipment (UE), to send the measurement reports for multiple component carriers in one subframe in a multicarrier configuration;
determining, at the UE, a validity of reference subframes for each of the multiple component carriers; and
managing, at the UE, in response to said determining the validity of the reference subframes for each of the multiple component carriers, the sending of the measurement reports for the multiple component carriers in the one subframe in the multicarrier configuration, wherein managing the sending of the measurement reports for the multiple component carriers comprises;
determining, at the UE, that at least one of the multiple component carriers has a valid reference subframe and that at least one of the multiple component carriers has an invalid reference subframe;
andomitting, by the UE, in response to the determining that at least one of the multiple component carriers has the valid reference subframe and that at least one of the multiple component carriers has the invalid reference subframe, the sending of measurement reports for each of the multiple component carriers respectively when at least one of the multiple component carriers has the invalid reference subframe and when at least one of the multiple component carriers has the valid reference subframe.
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Abstract
A method transmits long term evolution (LTE) measurement reports on an uplink. The method manages invalid reference subframes in a multicarrier configuration. The managing can be implemented by transmitting measurement reports for component carriers with valid reference subframes; and omitting measurement reports for at least one component carrier with an invalid reference subframe.
123 Citations
34 Claims
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1. A method for transmitting measurement reports on an uplink, comprising:
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configuring, at a user equipment (UE), to send the measurement reports for multiple component carriers in one subframe in a multicarrier configuration; determining, at the UE, a validity of reference subframes for each of the multiple component carriers; and managing, at the UE, in response to said determining the validity of the reference subframes for each of the multiple component carriers, the sending of the measurement reports for the multiple component carriers in the one subframe in the multicarrier configuration, wherein managing the sending of the measurement reports for the multiple component carriers comprises; determining, at the UE, that at least one of the multiple component carriers has a valid reference subframe and that at least one of the multiple component carriers has an invalid reference subframe; and omitting, by the UE, in response to the determining that at least one of the multiple component carriers has the valid reference subframe and that at least one of the multiple component carriers has the invalid reference subframe, the sending of measurement reports for each of the multiple component carriers respectively when at least one of the multiple component carriers has the invalid reference subframe and when at least one of the multiple component carriers has the valid reference subframe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for transmitting measurement reports on an uplink, comprising:
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a memory; and at least one processor coupled to the memory, the at least one processor being configured to; send the measurement reports for multiple component carriers in one subframe in a multicarrier configuration; determine a validity of reference subframes for each of the multiple component carriers; and manage, in response to said determining the validity of reference subframes for each of the multiple component carriers, the sending of the measurement reports for the multiple component carriers in the one subframe in the multicarrier configuration, wherein the at least one processor is further configured to manage the sending of the measurement reports for the multiple component carriers by; determining, at the UE, that at least one of the multiple component carriers has a valid reference subframe and that at least one of the multiple component carriers has an invalid reference subframe; and omitting, by the UE, in response to the determining that at least one of the multiple component carriers has the valid reference subframe and that at least one of the multiple component carriers has the invalid reference subframe, the sending of measurement reports for each of the multiple component carriers respectively when at least one of the multiple component carriers has the invalid reference subframe and when at least one of the multiple component carriers has the valid reference subframe. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An apparatus for transmitting measurement reports on an uplink, comprising:
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means for configuring, at a user equipment (UE), to send the measurement reports for multiple component carriers in one subframe in a multicarrier configuration; means for determining, at the UE, a validity of reference subframes for each of the multiple component carriers; means for managing, at the UE, in response to said means for determining the validity of the reference subframes for each of the multiple component carriers, the sending of the measurement reports for the multiple component carriers in the one subframe in the multicarrier configuration, wherein means for managing the sending of the measurement reports for the multiple component carriers comprise; means for determining, at the UE, that at least one of the multiple component carriers has a valid reference subframe and that at least one of the multiple component carriers has an invalid reference subframe; and means for omitting, by the UE, in response to the determining that at least one of the multiple component carriers has the valid reference subframe and that at least one of the multiple component carriers has the invalid reference subframe, the sending of measurement reports for each of the multiple component carriers respectively when at least one of the multiple component carriers has the invalid reference subframe and when at least one of the multiple component carriers has the valid reference subframe.
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22. A computer program product for transmitting measurement reports on an uplink, comprising:
a non-transitory computer-readable medium having non-transitory program code recorded thereon, the program code comprising; program code to configure, at a user equipment (UE), to send the measurement reports for multiple component carriers in one subframe in a multicarrier configuration; program code to determining, at the UE, a validity of reference subframes for each of the multiple component carriers; and program code to manage, in response to said determination of the validity of reference subframes for each of the multiple component carriers, the sending of the measurement reports for the multiple component carriers in the one subframe in the multicarrier configuration, wherein the program code to manage the sending of the measurement reports for the multiple component carriers comprises; program code to determine, at the UE, that at least one of the multiple component carriers has a valid reference subframe and that at least one of the multiple component carriers has an invalid reference subframe; and program code to omit, by the UE, in response to the determining that at least one of the multiple component carriers has the valid reference subframe and that at least one of the multiple component carriers has the invalid reference subframe, the sending of measurement reports for each of the multiple component carriers respectively when at least one of the multiple component carriers has the invalid reference subframe and when at least one of the multiple component carriers has the valid reference subframe.
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23. A method for measurement reports on an uplink, comprising:
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configuring, at a user equipment (UE), to send the measurement reports for component carriers in a multicarrier configuration; determining, at the UE, a validity of reference subframes; and managing, at the UE, in response to said determining the validity of reference subframes, invalid reference subframes in the multicarrier configuration by; transmitting measurement reports for component carriers with valid reference subframes; and omitting measurement reports for at least one component carrier with an invalid reference subframe, wherein the measurement reports are periodic channel state information (CSI) reports, wherein transmitting the measurement reports comprises transmitting the periodic CSI reports for only one component carrier in a subframe, wherein prioritization among component carriers with the periodic CSI reports due in a same subframe is based at least in part on a report type for each component carrier, where; reporting types 3, 5, 6 and 2 have a highest priority; reporting types 2, 2b, 2c, and 4 are prioritized when types 3, 5, 6 and 2a are reported; and reporting types 1 and 1a are prioritized when types 2, 2b, 2c and 4 are reported. - View Dependent Claims (24, 25, 26, 27)
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28. An apparatus for transmitting measurement reports on an uplink, comprising:
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a memory; and at least one processor coupled to the memory, the at least one processor being configured to; send the measurement reports for component carriers in a multicarrier configuration; determine a validity of reference subframes; and manage, in response to said determining the validity of reference subframes, invalid reference subframes in the multicarrier configuration by; transmitting measurement reports for component carriers with valid reference subframes; and omitting measurement reports for at least one component carrier with an invalid reference subframe, wherein the measurement reports are periodic channel state information (CSI) reports, and wherein the at least one processor is further configured to transmit the measurement reports by transmitting the periodic CSI reports for only one component carrier in a subframe, wherein prioritization among component carriers with the periodic CSI reports due in a same subframe is based at least in part on a report type for each component carrier, where; reporting types 3, 5, 6 and 2 have a highest priority; reporting types 2, 2b, 2c, and 4 are prioritized when types 3, 5, 6 and 2a are reported; and reporting types 1 and 1a are prioritized when types 2, 2b, 2c and 4 are reported. - View Dependent Claims (29, 30, 31, 32)
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33. An apparatus for transmitting measurement reports on an uplink, comprising:
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means for configuring, at a user equipment (UE), to send the measurement reports for component carriers in a multicarrier configuration; means for determining, at the UE, a validity of reference subframes; and means for managing, at the UE, in response to said determining the validity of reference subframes, invalid reference subframes in the multicarrier configuration, wherein the means for managing include; means for transmitting measurement reports for component carriers with valid reference subframes; and means for omitting measurement reports for at least one component carrier with an invalid reference subframe, wherein the measurement reports are periodic channel state information (CSI) reports, wherein the means for transmitting the periodic measurement reports comprises means for transmitting the periodic CSI reports for only one component carrier in a subframe, wherein prioritization among component carriers with the periodic CSI reports due in a same subframe is based at least in part on a report type for each component carrier, where; reporting types 3, 5, 6 and 2 have a highest priority; reporting types 2, 2b, 2c, and 4 are prioritized when types 3, 5, 6 and 2a are reported; and reporting types 1 and 1a are prioritized when types 2, 2b, 2c and 4 are reported.
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34. A computer program product for transmitting measurement reports on an uplink, comprising:
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a non-transitory computer-readable medium having non-transitory program code recorded thereon, the program code comprising; program code to configure, at a user equipment (UE), to send the measurement reports for component carriers in a multicarrier configuration; program code to determine, at the UE, a validity of reference subframes; and program code to manage, at the UE, in response to said determining the validity of reference subframes, invalid reference subframes in the multicarrier configuration, wherein the program code to manage includes; program code to transmit measurement reports for component carriers with valid reference subframes; and program code to omit measurement reports for at least one component carrier with an invalid reference subframe, wherein the measurement reports are periodic channel state information (CSI) reports, wherein the program code to transmit the periodic measurement reports includes program code to transmit the periodic CSI reports for only one component carrier in a subframe, wherein prioritization among component carriers with the periodic CSI reports due in a same subframe is based at least in part on a report type for each component carrier, where; reporting types 3, 5, 6 and 2 have a highest priority; reporting types 2, 2b, 2c, and 4 are prioritized when types 3, 5, 6 and 2a are reported; and reporting types 1 and 1a are prioritized when types 2, 2b, 2c and 4 are reported.
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Specification