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
1-3. (canceled)
4. A wireless transmit/receive unit (WTRU) comprising:
a memory; and a processor, the processor configured to:
receive a plurality of demodulation reference signal (DM-RS) configurations, each DM-RS configuration corresponding to a respective carrier segment of a set of carrier segments, wherein each respective carrier segment is used for receiving a physical data shared channel (PDSCH), and wherein each DM-RS configuration comprises one or more DM-RS parameters that are used to determine a DM-RS structure for each respective carrier segment; and
receive a PDSCH transmission in at least one carrier segment of the set of carrier segments, wherein the received PDSCH transmission comprises one or more DM-RSs that is in accordance with a determined DM-RS structure for the at least one carrier segment.
5. The WTRU of claim 4, wherein each respective carrier segment of the set of carrier segments corresponds to a different set of frequency resources.
6. The WTRU of claim 4, wherein each respective carrier segment comprises a set of consecutive physical resource blocks (PRBs).
7. The WTRU of claim 6, wherein the set of consecutive PRBs comprise a set of resource elements (REs).
8. The WTRU of claim 4, wherein the plurality of DM-RS configurations are received via a Radio Resource Control (RRC) signaling.
9. The WTRU of claim 4, wherein the one or more DM-RS parameters comprise frequency domain information associated with the DM-RS structure for the PDSCH transmission.
10. The WTRU of claim 4, wherein the one or more DM-RS parameters comprise time density information associated with the DM-RS structure for the PDSCH transmission.
11. The WTRU of claim 10, wherein the time density information comprises information related to which of a plurality of OFDM symbols will include the one or more DM-RSs.
12. A method for wireless communications, the method comprising:
receiving a plurality of demodulation reference signal (DM-RS) configurations, each DM-RS configuration corresponding to a respective carrier segment of a set of carrier segments, wherein each respective carrier segment is used for receiving a physical data shared channel (PDSCH), and wherein each DM-RS configuration comprises one or more DM-RS parameters that are used to determine a DM-RS structure for each respective carrier segment; and receiving a PDSCH transmission in at least one carrier segment of the set of carrier segments, wherein the received PDSCH transmission comprises one or more DM-RSs that is in accordance with a determined DM-RS structure for the at least one carrier segment.
13. The method of claim 12, wherein each respective carrier segment of the set of carrier segments corresponds to a different set of frequency resources.
14. The method of claim 12, wherein each respective carrier segment comprises a set of consecutive physical resource blocks (PRBs).
15. The method of claim 14, wherein the set of consecutive PRBs comprise a set of resource elements (REs).
16. The method of claim 12, wherein the plurality of DM-RS configurations are received via a Radio Resource Control (RRC) signaling.
17. The method of claim 12, wherein the one or more DM-RS parameters comprise frequency domain information associated with the DM-RS structure for the PDSCH transmission.
18. The method of claim 12, wherein the one or more DM-RS parameters comprise time density information associated with the DM-RS structure for the PDSCH transmission.
19. The method of claim 18, wherein the time density information comprises information related to which of a plurality of OFDM symbols will include the one or more DM-RSs.
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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.