Abstract
Methods and apparatus are described. A long term evolution-advanced (LTE-A) wireless transmit/receive unit (WTRU) includes a transceiver and a processor. The transceiver receives discontinuous reception (DRX) configuration information. The processor, in response to the received DRX information, controls the transceiver to monitor LTE-A physical downlink control channels (PDCCHs) in subframes in a first frequency band during an active time. The processor further, in response to detecting a downlink assignment in an LTE-A PDCCH in the first frequency band during the active time, wherein the downlink assignment indicates a second frequency band and assigned subcarriers within the second frequency band, to receive an LTE-A physical downlink shared channel (PDSCH) K subframes after a transmission of the downlink assignment. The second frequency band is different than the first frequency band.
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Technologies
Resource configuration
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Use Cases
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Claim
1. A wireless transmit/receive unit (WTRU) comprising:
a transceiver configured to receive frequency band configuration information, wherein the frequency band configuration information indicates a plurality of frequency bands; a processor operatively coupled to the transceiver, the processor and transceiver configured to monitor physical downlink control channels (PDCCHs) in a first frequency band out of the plurality of frequency bands; and the processor and transceiver, in response to detecting a downlink assignment in one of the PDCCHs in the first frequency band, are further configured to receive a physical downlink shared channel (PDSCH) on assigned subcarriers at a second frequency band out of the plurality of frequency bands indicated by the downlink assignment, wherein the PDSCH is received at a delayed time interval after an end of the monitored PDCCHs of the downlink assignment, wherein a time period of an uplink physical uplink control channel for HARQ feedback for the PDSCH is assigned to the WTRU; and the processor and the transceiver are configured to transmit the HARQ feedback at the assigned time period.
2. The WTRU of claim 1 wherein:
the transceiver is further configured to receive discontinuous reception (DRX) configuration information; and
the processor and transceiver, in response to the received DRX configuration information, are configured to monitor the PDCCHs during an active time derived from the received DRX configuration information.
3. The WTRU of claim 2 wherein the active time is derived using a single DRX activity timer for the plurality of frequency bands.
4. A method comprising:
receiving, by a wireless transmit/receive unit (WTRU), frequency band configuration information, wherein the frequency band configuration information indicates a plurality of frequency bands; monitoring, by the WTRU, physical downlink control channels (PDCCHs) in a first frequency band out of the plurality of frequency bands; and in response to detecting a downlink assignment in one of the PDCCHs in the first frequency band, receiving, by the WTRU, a physical downlink shared channel (PDSCH) on assigned subcarriers at a second frequency band out of the plurality of frequency bands indicated by the downlink assignment, wherein the PDSCH is transmitted at delayed time interval after an end of the monitored PDCCHs of the downlink assignment, wherein a time period of an uplink physical uplink control channel for HARQ feedback for the PDSCH is assigned to the WTRU; and transmitting the HARQ feedback at the assigned time period.
5. The method of claim 4 wherein:
receiving, by the WTRU, discontinuous reception (DRX) configuration information; and
in response to the received DRX configuration information, monitoring, by the WTRU, physical downlink control channels (PDCCHs) during an active time derived from the received DRX configuration information.
6. The method of claim 5 wherein the active time is derived using a single DRX activity timer for the plurality of frequency bands.
7. A base stations comprising:
a transceiver configured to transmit frequency band configuration information to a wireless transmit/receive unit (WTRU), wherein the frequency band configuration information indicates a plurality of frequency bands; a processor operatively coupled to the transceiver, the processor and transceiver configured to transmit a downlink assignment in a physical downlink control channel (PDCCH) in a first frequency band out of the plurality of frequency bands to the WTRU, the downlink assignment indicating assigned subcarriers at a second frequency band out of the plurality of frequency bands for transmission of a physical uplink shared channel (PDSCH); the processor and the transceiver are further configured to receive the PDSCH from the WTRU on the assigned subcarriers on the second frequency band, wherein the PDSCH is received at delayed time interval after the transmitted PDCCH of the downlink assignment, wherein a time period of an uplink physical uplink control channel for HARQ feedback for the PDSCH is assigned to the WTRU by the base station; and the processor and the transceiver are configured to receive the HARQ feedback at the assigned time period.
8. The base station of claim 7 wherein:
the processor and the transceiver are further configured to transmit to the WTRU discontinuous reception (DRX) configuration information, wherein the DRX configuration information is used by the WTRU to determine an active time to monitor physical downlink control channels (PDCCHs).
9. The base station of claim 8 wherein the active time is derived using a single DRX activity timer from the DRX configuration information for the plurality of frequency bands.
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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.