Granted Patent B2

US 12,200,673 · App. 17/554,494 · Granted Jan 14, 2025

Inventors: Ankit Bhamri (Rödermark, DE); Hidetoshi Suzuki (Kanagawa, JP)

Assignee: Panasonic Intellectual Property Corporation of America

H04W72/0446H04W72/23

Abstract

Claims (77)

1. A user equipment (UE), comprising:

a transceiver, which, in operation, receives downlink control information (DCI) signaling; and

a processor, which, in operation, obtains from the DCI signaling:

a Transmission Configuration Indication (TCI) indicator specifying that two or more TCI states are configured; and

an indication indicating time-domain resources for transmissions and associations of the time-domain resources with the two or more TCI states, wherein each of the time-domain resources is associated with one of the two or more TCI states;

wherein

the transceiver, in operation, receives, for each of the two or more TCI states, data on the time-domain resources associated with the respective TCI state, and

the processor, in operation, determines a mapping of the transmissions from a base station onto the time-domain resources including a first time-domain resource and a second time-domain resource within a slot for consecutive transmissions, in accordance with a predetermined offset, wherein, in a case where the UE is semi-statically configured by the base station with a value K in the predetermined offset, a first symbol of the second time-domain resource starts after K symbols from a last symbol of the first time-domain resource.

2. The user equipment according to claim 1 , wherein the indication is an index indicating an entry of a Time-Domain Resource Assignment (TDRA) table.

3. The user equipment according to claim 2 , wherein

the entry of the TDRA table includes, two or more sets of Start and Length Indicator Values (SLIVs), wherein

each set corresponds to a respective TCI state, and

each SLIV corresponds to a respective transmission and indicates:

a start position of time-domain resources for the respective transmission, wherein the time-domain resources for the respective transmission are associated with that TCI state that corresponds to the set of the respective SLIV; and

a length of the time-domain resources for the respective transmission.

4. The user equipment according to claim 3 , wherein

each set includes not more than one SLIV; and

the entry of the TDRA table includes an indication of a total number of the transmissions.

5. The user equipment according to claim 4 , wherein

the processor, in operation, determines:

for each set including one SLIV, a start position and a length of time-domain resources for a respective first transmission in accordance with that SLIV included in the set; and/or

for each transmission that is not one of the first transmissions:

an association of time-domain resources for the transmission with one of the two or more TCI states in accordance with: a pattern that indicates a sequence of TCI states and corresponds to start positions of the time-domain resources for the first transmissions; and/or

a length of the time-domain resources for the transmission in accordance with: a length of the time-domain resources for a respective first transmission, wherein the time-domain resources for the respective first transmission and the time-domain resources for the transmission are associated with a same TCI state.

6. The user equipment according to claim 2 , wherein

the entry of the TDRA table includes:

an indication of a total number of the transmissions; and

a single Start and Length Indicator Value (SLIV) that indicates:

a start position of time-domain resources for a first transmission, and

a length of the time-domain resources for the first transmission.

7. The user equipment according to claim 6 , wherein

the processor, in operation, determines:

the start position of the time-domain resources for the first transmission in accordance with the start position indicated by the single SLIV for the first transmission;

the length of the time-domain resources for the first transmission in accordance with the length indicated by the single SLIV for the first transmission; and/or

for each transmission that is not the first transmission:

a length of time-domain resources for the transmission in accordance with the length of the time-domain resources for the first transmission;

and/or

an association of the time-domain resources for the transmission with the two or more TCI states in accordance with a predetermined pattern.

8. The user equipment according to claim 2 , wherein

the entry of the TDRA table includes:

an indication of a total number of the transmissions;

a first Start and Length Indicator Value (SLIV) that indicates:

a start position of time-domain resources for a first transmission, and

a length of the time-domain resources for the first transmission; and

a second SLIV that indicates:

a start position of time-domain resources not available for the transmissions, and

a length of the time-domain resources not available for the transmissions.

9. The user equipment according to claim 8 , wherein

the processor, in operation, determines the mapping of the transmissions onto the time-domain resources, in which:

the length of the time-domain resources of each transmission is the same as the length indicated by the first SLIV for the first transmission;

the transmissions are mapped, in accordance with the predetermined offset, starting from the start position of the time-domain resources for the first transmission indicated by the first SLIV, onto available time-domain resources of the two or more TCI states; and

each of the time-domain resources is associated with one of the two or more TCI states in accordance with a predetermined pattern.

10. The user equipment according to claim 8 , wherein

the processor, in operation, determines the mapping of the transmissions onto the time-domain resources, in which

the transmissions are mapped, in accordance with the predetermined offset, starting from the start position of the time-domain resources for the first transmission indicated by the first SLIV, onto time-domain resources of the two or more TCI states, wherein:

the time-domain resources onto which the transmissions are mapped include available and non-available time-domain resources;

any transmission is mapped onto time-domain resources having the length indicated by the first SLIV for the first transmission, counting the non-available time-domain resources;

any transmission mapped onto time-domain resources including the non-available time-domain resources is punctured; and

each of the time-domain resources is associated with one of the two or more TCI states in accordance with a predetermined pattern.

11. The user equipment according to claim 1 , wherein the processor, in operation, determines, in accordance with the TCI indicator, a Time-Domain Resource Assignment (TDRA) table from at least two predetermined TDRA tables.

12. The user equipment according to claim 1 , wherein the transmissions are repetitions of a same data portion.

13. A base station, comprising:

a processor, which, in operation, generates downlink control information (DCI) signaling, which indicates:

a Transmission Configuration Indication (TCI) indicator specifying that two or more TCI states are configured; and

time-domain resources for transmissions and associations of the time-domain resources with the two or more TCI states, wherein each of the time-domain resources is associated with one of the two or more TCI states; and

a transceiver, which, in operation,

transmits the DCI signaling to a user equipment (UE); and

transmits to the UE, for each of the two or more TCI states, data on the time-domain resources associated with the respective TCI state,

wherein,

the processor, in operation, determines a mapping of the transmissions from the base station onto the time-domain resources including a first time-domain resource and a second time-domain resource within a slot for consecutive transmissions, in accordance with a predetermined offset, wherein, in a case where the UE is semi-statically configured by the base station with a value K in the predetermined offset, a first symbol of the second time-domain resource starts after K symbols from a last symbol of the first time-domain resource.

14. A method for a user equipment (UE) comprising the steps of:

receiving downlink control information (DCI) signaling;

obtaining from the DCI signaling:

a Transmission Configuration Indication (TCI) indicator specifying that two or more TCI states are configured; and

an indication indicating time-domain resources for transmissions and associations of the time-domain resources with the two or more TCI states, wherein each of the time-domain resources is associated with one of the two or more TCI states;

determining a mapping of the transmissions from a base station onto the time-domain resources including a first time-domain resource and a second time-domain resource within a slot for consecutive transmissions, in accordance with a predetermined offset, wherein, in a case where the UE is semi-statically configured by the base station with a value K in the predetermined offset, a first symbol of the second time-domain resource starts after K symbols from a last symbol of the first time-domain resource; and

receiving, for each of the two or more TCI states, data on the time-domain resources associated with the respective TCI state.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (36)