Abstract
The present invention provides a method of transmitting a channel quality indicator (CQI) in a wireless communication system. The method performed by a user equipment supporting a relatively shorter transmission time interval (S-TTI) than a legacy transmission time interval (L-TTI) includes determining predefined control channel-related overhead depending on whether S-TTI-based communication is performed and transmitting the CQI based on the determined predefined control channel-related overhead. If the S-TTI-based communication is performed the predefined control channel-related overhead is identically determined between an S-TTI including a legacy physical downlink control channel (PDCCH) region and a S-TTI not including a legacy PDCCH region.
Technologies
Resource configuration Channel Status Information(CSI) Reporting
Product
User Equipment (UE/Terminal)
Use Cases
Wireless communication
Services
Channel Quality Measurement/Estimation
Claim
1. A method of transmitting channel quality information in a wireless communication system, the method performed by a user equipment (UE) that supports both a short transmission time interval (S-TTI) and a legacy transmission time interval (L-TTI), the method comprising:
determining an overhead related to a control channel based on whether a S-TTI based communication is performed; and
transmitting the channel quality information based on the determined overhead related to the control channel,
wherein, based on the S-TTI based communication being performed, determining the overhead related to the control channel comprises:
determining the overhead as being the same for an S-TTI for both (i) the S-TTI including a legacy physical downlink control channel region (legacy PDCCH region); and (ii) the S-TTI not including the legacy PDCCH region.
2. The method of claim 1, wherein the control channel comprises a PDCCH.
3. The method of claim 1, wherein the L-TTI comprises a plurality of S-TTIs.
4. The method of claim 1, wherein a duration of the L-TTI is 1 ms.
5. The method of claim 1, based on the S-TTI-based communication being performed in the S-TTI, determining the overhead related to the control channel further comprises:
determining the overhead as being the same for a reference resource based on the S-TTI for both (i) the reference resource including a legacy PDCCH region, and (ii) the reference resource not including the legacy PDCCH region.
6. A method of reporting channel state information (CSI) in a wireless communication system, the method performed by a user equipment (UE) that supports both a short transmission time interval (S-TTI) and a legacy transmission time interval (L-TTI), the method comprising:
receiving, in a subframe among a plurality of subframes, downlink control information (DCI), wherein the DCI comprises information related to an S-TTI;
determining that the received DCI is set to trigger a report for CSI; and
based on the DCI being set to trigger the report for the CSI, reporting the CSI according to a transmission mode for the subframe in which the DCI is received.
7. The method of claim 6, wherein the CSI is reported according to the transmission mode for the subframe that includes an S-TTI in which the DCI has been received.
8. The method of claim 7, wherein a type of the subframe in which the DCI is received is one of (i) a multicast broadcast single frequency network (MBSFN) subframe type or (ii) a non-MBSFN (NMBSFN) subframe type.
9. The method of claim 8, wherein based on the type of the subframe in which the DCI is received being the MBSFN subframe type, the transmission mode is a first transmission mode, and
based on the type of the subframe in which the DCI is received being the NMBSFN subframe type, the transmission mode is a second transmission mode different from the first transmission mode.
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SUMMARY
ClaimChart-US10389505B2-STO
Patent number:US10389505B2
Claim Chart Type : SEP Claim Chart
Price: 200 €
Note:
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.