Abstract
Reference signals configured for use with extension carriers and/or carrier segments are described. Reference signals for extension carriers and/or carrier segments may include demodulation reference signals (e.g., user equipment-specific reference signals), cell-specific reference signals, and channel-state information reference signals. Methods, systems and apparatuses for configuring extension carriers and/or carrier segments with one or more of the reference signals (e.g., positioning one or more reference signal symbols in extension carriers and/or carrier segments) are described.
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Technologies
Product
Use Cases
Services
Claim
A wireless transmit receive unit (WTRU) comprising:
a processor; and
a memory comprising instructions that when executed by the processor cause the WTRU to:
receive, via Radio Resource Control (RRC) signaling, a configuration from an eNode B, the configuration comprising a parameter that is indicative of a periodicity at which one or more cell-specific reference signals (CRSs) transmitted from a secondary cell (SCell) are to be measured, wherein CRSs are transmitted from a primary cell (PCell) to which the WTRU is connected more frequently in subframes than the one or more CRSs transmitted from the SCell;
perform a measurement on at least one CRS in accordance with the indicated periodicity; and
send a measurement report to the eNode B, the measurement report comprising the measurement.
2. The WTRU of claim 1, wherein the configuration received via the RRC signaling is received via the PCell.
3. The WTRU of claim 2, wherein the at least one CRS is received via the SCell configured for the WTRU.
4. The WTRU of claim 1, wherein the measurement report corresponds to a mobility-related measurement report.
5. The WTRU of claim 1, wherein the parameter indicates the periodicity of subframes that carry the one or more CRSs.
6. A method comprising:
receiving, at a wireless transmit receive unit (WTRU) via Radio Resource Control (RRC) signaling, a configuration from an eNode B, the configuration comprising a parameter that is indicative of a periodicity at which one or more cell-specific reference signals (CRSs) transmitted from a secondary cell (SCell) are to be measured, wherein CRSs are transmitted from a primary cell (PCell) to which the WTRU is connected more frequently in subframes than the one or more CRSs transmitted from the SCell;
performing a measurement on at least one CRS in accordance with the indicated periodicity; and
sending a measurement report to the eNode B, the measurement report comprising the measurement.
7. The method of claim 6, wherein the configuration received via the RRC signaling is received via the PCell.
8. The method of claim 7, wherein the at least one CRS is received via the SCell configured for the WTRU.
9. The method of claim 6, wherein the measurement report corresponds to a mobility-related measurement report.
10. The method of claim 6, wherein the parameter indicates the periodicity of subframes that carry the one or more CRSs.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
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.