Abstract
Channel state information is reported in periodic and aperiodic reports for multiple component carriers or serving cells. Channel state information may be reported for a subset of aggregated downlink carriers or serving cells. For an aperiodic report the carrier(s)/serving cell(s) for which channel state information is reported may be determined based on the request for the aperiodic report. A report collision may occur in a subframe between a periodic CSI report for a first serving cell and a report for a second serving cell. A priority rule may be used to resolve the report collision.
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5G | 15/01/2019 | ISLD-201812-064 | INTERDIGITAL INC |
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4G | 30/10/2019 | ISLD-201909-015 | INTERDIGITAL INC |
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WO2011085230A2 | 5G | 15/01/2019 | ISLD-201812-064 | INTERDIGITAL INC |
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Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Multiplexing
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Use Cases
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Claim
A wireless transmit/receive unit (WTRU) for reporting periodic channel state information (CSI), the WTRU comprising:
a processor configured to:
determine that there is a report collision in a subframe between a periodic CSI report for a first serving cell and a report for a second serving cell;
determine a priority rule to be used to resolve the report collision; and
send the periodic CSI report via a physical uplink control channel (PUCCH) using the priority rule.
2. The WTRU of claim 1, wherein the processor is further configured to determine that the WTRU is not configured for simultaneous physical uplink shared channel (PUSCH) and PUCCH transmission.
3. The WTRU of claim 1, wherein the processor is further configured to determine a periodic CSI report configuration for the first serving cell.
4. The WTRU of claim 3, wherein the periodic CSI report configuration comprises a reporting period and a report type offset.
5. The WTRU of claim 3, wherein the processor is configured to determine the priority rule to be used to resolve the report collision by using the periodic CSI report configuration.
5. The WTRU of claim 1, wherein the priority rule is a based on a priority order provided by a higher layer.
6. The WTRU of claim 1, wherein the priority rule is based on a report type.
7. The WTRU of claim 1, wherein the processor is configured to determine the priority rule to be used to resolve the report collision by:
determining a first priority order provided by a higher layer; determining a second priority order based on a report type; and resolving the CSI report collision using the first priority order and the second priority order by giving the second priority order precedence over the first priority order.
8. The WTRU of claim 1, wherein the first serving cell is in an active state and the second serving cell is in a deactivated state, and wherein the processor is configured to determine the priority rule to be used to resolve the report collision such that the report for the second serving cell is prevented from being reported while the second serving cell is in the deactivated state.
9. A method for reporting periodic channel state information (CSI) comprising:
determining that there is a report collision in a subframe between a periodic CSI report for a first serving cell and a report for a second serving cell; determining a priority rule to be used to resolve the report collision; and sending the periodic CSI via a physical uplink control channel (PUCCH) using the priority rule.
10. The method of claim 10, further comprising determining a wireless transmit/receive unit (WTRU) is not configured for simultaneous physical uplink shared channel (PUSCH) and PUCCH transmission.
11. The method of claim 10, wherein determining the priority rule to be used to resolve the report collision comprises:
determining a first periodic CSI report configuration for the first serving cell; and determining the priority rule using the periodic CSI report configuration.
12. The method of claim 10, wherein the priority rule is a based on a priority order provided by a higher layer.
13. The method claim 10, wherein the priority rule is based on a report type.
14. The method of claim 10, wherein resolving the CSI report collision using the priority rule comprises:
determining a first priority order provided by a higher layer; determining a second priority order based on a report type; and resolving the CSI report collision using the first priority order and the second priority order by giving the second priority order precedence over the first priority order.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.