Abstract
Certain aspects of the present disclosure relate to techniques and methods for reporting channel state information (CSI) feedback for example for UEs capable of supporting evolved interference management traffic adaptation (eIMTA). In one aspect a method generally includes receiving signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS) receiving signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets where each subframe set is associated with an interference measurement resource (IMR) configuration detecting a collision of CSI reporting for the at least two subframe sets in an uplink subframe prioritizing one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe and reporting CSI in the uplink subframe based on the prioritization.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | Yes | Basis Patent |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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US2017041905A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | Yes | Basis Patent | ||||
CN105874738A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
EP3092739A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
EP3092739A4 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
JP2017510218A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
KR20160105883A | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
WO2015103733A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
WO2015103803A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
WO2015103965A1 | 5G | 07/06/2018 | ISLD-201807-054 | QUALCOMM INC | No | Family Member | ||||
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Claim
1. A method for wireless communications by a user equipment (UE), comprising:
receiving signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS), wherein the first UL/DL subframe configuration is signaled via a system information block (SIB);
receiving signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets, where each subframe set is associated with an interference measurement resource (IMR) configuration;
detecting a collision of CSI reporting for the at least two subframe sets in an uplink subframe;
prioritizing one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe; and
reporting CSI in the uplink subframe based on the prioritization,
wherein interference measurement resources corresponding to at least two IMRs are not subject to a constraint that the at least two IMRs are limited to periodically occurring subframes,
wherein at least one of a first IMR and a second IMR in the at least two IMRs are only within DL subframes according to the first UL/DL subframe configuration, and
wherein at least one of the first IMR and the second IMR in the at least two IMRs are not subject to the constraint in DL subframes that were not DL subframes in the first UL/DL subframe configuration.
2. The method of claim 1, wherein the at least two subframe sets are associated with a same CSI process.
3. The method of claim 1, wherein a subframe set with a lowest set subframe set index, among the subframe sets under collision in the uplink subframe, is given a higher priority.
4. The method of claim 1, wherein the CSI reporting configuration comprises of one or more CSI processes for one or more component carriers, and the prioritization of CSI reporting is further based on at least one of a CSI reporting type, a CSI process index, or a component carrier index.
5. The method of claim 1, wherein the CSI reporting is of a periodic CSI reporting type.
6. The method of claim 1, wherein the first UL/DL subframe configuration is signaled via a system information block (SIB).
7. The method of claim 1, further comprising: receiving an indication indicating a second UL/DL subframe configuration, which is more dynamic than the first UL/DL subframe configuration.
8. The method of claim 7, wherein the detecting the collision comprises: determining a downlink reference subframe for the CSI reporting based on the dynamically signaled second UL/DL subframe configuration.
9. The method of claim 8, wherein:
determining the downlink reference subframe is an uplink subframe;
altering CSI reporting in response to the detection of the collision, where the altering comprises at least one of sending a measurement report with a value that is at least one of: outdated or out of range, or omitting a CSI report.
10. The method of claim 1, wherein the at least one of the first IMR and the second IMR in the at least two IMRs are only within the DL subframes according to the first UL/DL subframe configuration is associated with a lowest subframe set index.
11. An apparatus for wireless communication, comprising:
at least one processor configured to:
receive signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS), wherein the first UL/DL subframe configuration is signaled via a system information block (SIB);
receive signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets, where each subframe set is associated with an interference measurement resource (IMR) configuration;
detect a collision of CSI reporting for the at least two subframe sets in an uplink subframe;
prioritize one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe; and
report CSI in the uplink subframe based on the prioritization; and
a memory coupled with the at least one processor,
wherein interference measurement resources corresponding to at least two IMRs are not subject to a constraint that the at least two IMRs are limited to periodically occurring subframes,
wherein at least one of a first IMR and a second IMR in the at least two IMRs are only within DL subframes according to the first UL/DL subframe configuration, and
wherein at least one of the first IMR and the second IMR in the at least two IMRs are not subject to the constraint in DL subframes that were not DL subframes in the first UL/DL subframe configuration.
12. The apparatus of claim 11, wherein the at least two subframe sets are associated with a same CSI process.
13. The apparatus of claim 11, wherein a subframe set with a lowest set subframe set index, among the subframe sets under collision in the uplink subframe, is given a higher priority.
14. The apparatus of claim 11, wherein the CSI reporting configuration comprises of one or more CSI processes for one or more component carriers, and the prioritization of CSI reporting is further based on at least one of a CSI reporting type, a CSI process index, or a component carrier index.
15. The apparatus of claim 11, wherein the CSI reporting is of a periodic CSI reporting type.
16. The apparatus of claim 11, wherein the first UL/DL subframe configuration is signaled via a system information block (SIB).
17. The apparatus of claim 11, wherein the at least one processor is further configured to: receive an indication indicating a second UL/DL subframe configuration, which is more dynamic than the first UL/DL subframe configuration.
18. The apparatus of claim 17, wherein the at least one processor configured to detect a collision determines a downlink reference subframe for the CSI reporting based on the dynamically signaled second UL/DL subframe configuration.
19. The apparatus of claim 18, wherein the at least one processor configured to determine a downlink reference subframe determines the downlink reference subframe is an uplink subframe and alters CSI reporting in response to the detection of the collision, wherein the at least one processor configured to alter CSI reporting is configured to send a measurement report with a value that is at least one of: outdated or out of range, or omit a CSI report.
20. The apparatus of claim 11, wherein the at least one of the first IMR and the second IMR in the at least two IMRs are only within the DL subframes according to the first UL/DL subframe configuration is associated with a lowest subframe set index.
21. An apparatus for wireless communications, comprising:
means for receiving signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS), wherein the first UL/DL subframe configuration is signaled via a system information block (SIB);
means for receiving signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets, where each subframe set is associated with an interference measurement resource (IMR) configuration;
means for detecting a collision of CSI reporting for the at least two subframe sets in an uplink subframe;
means for prioritizing one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe; and
means for reporting CSI in the uplink subframe based on the prioritization,
wherein interference measurement resources corresponding to at least two IMRs are not subject to a constraint that the at least two IMRs are limited to periodically occurring subframes,
wherein at least one of a first IMR and a second IMR in the at least two IMRs are only within DL subframes according to the first UL/DL subframe configuration, and
wherein at least one of the first IMR and the second IMR in the at least two IMRs are not subject to the constraint in DL subframes that were not DL subframes in the first UL/DL subframe configuration.
22. A non-transitory computer readable medium comprising instructions stored thereon, the instructions comprising instructions for:
receiving signaling of a first uplink/downlink (UL/DL) subframe configuration for communicating with a base station (BS), wherein the first UL/DL subframe configuration is signaled via a system information block (SIB);
receiving signaling of at least one channel state information (CSI) reporting configuration indicating at least two subframe sets, where each subframe set is associated with an interference measurement resource (IMR) configuration;
detecting a collision of CSI reporting for the at least two subframe sets in an uplink subframe;
prioritizing one subframe set from the at least two subframe sets for CSI reporting in the uplink subframe; and
reporting CSI in the uplink subframe based on the prioritization,
wherein interference measurement resources corresponding to at least two IMRs are not subject to a constraint that the at least two IMRs are limited to periodically occurring subframes,
wherein at least one of a first IMR and a second IMR in the at least two IMRs are only within DL subframes according to the first UL/DL subframe configuration, and
wherein at least one of the first IMR and the second IMR in the at least two IMRs are not subject to the constraint in DL subframes that were not DL subframes in the first UL/DL subframe configuration.
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.