Selection of time-domain resource allocation tables
According to certain embodiments, a user equipment, UE, is operable for multiple sub-carrier spacing values. The UE comprises memory operable to store instructions and processing circuitry operable to execute the instructions, whereby the UE is operable to determine one of a plurality of time-domain resource allocation tables based on first information received from a network node. The first information comprises a Radio Network Temporary Identifier, RNTI. The UE is operable to determine a time-domain resource allocated to the UE for transmission or reception of a wireless signal based on the determined one of the plurality of time-domain resource allocation tables and second information received from the network node. The second information comprises a time-domain resource allocation field value received in downlink control information, DCI. The UE is further operable to transmit or receive the wireless signal using the determined time-domain resource.
1. A method performed by a wireless device for determining a time-domain resource allocation, the method comprising:
receiving from a network node a downlink control information, DCI, that schedules a downlink transmission;
detecting a Radio Network Temporary Identifier, RNTI, used in the scheduling of the downlink transmission;
selecting a time-domain resource allocation table from multiple different time-domain resource allocation tables based on the detected RNTI, wherein each of the different time domain resource allocation tables is defined by a plurality of entries that specify different combinations of starting orthogonal frequency division multiplexing, OFDM, symbol and duration in OFDM symbols for a time-domain resource allocation; and
determining a time-domain resource allocation for the downlink transmission based on a time-domain resource allocation field in the DCI, the time-domain resource allocation field indicating an entry within the selected time-domain resource allocation table.
2. The method of claim 1 , wherein the multiple different time-domain resource allocation tables relate to time-domain resource allocation for physical downlink shared channel, PDSCH, scheduling.
3. The method of claim 1 , wherein the multiple different time-domain resource allocation tables comprise at least one pre-defined table with default values for the time domain resource allocation.
4. The method of claim 1 , wherein the multiple different time-domain resource allocation tables comprise at least one radio resource control, RRC, configured table.
5. The method of claim 1 , further comprising:
receiving a physical downlink shared channel, PDSCH, on a time-domain resource corresponding to the determined time-domain resource allocation.
6. The method of claim 1 , wherein selecting the time-domain resource allocation table further comprises selecting the time-domain resource allocation table based on at least one of a Control Resource Set, CORESET, and a search space used for scheduling the downlink transmission.
7. The method of claim 1 , wherein a first table of the multiple different time-domain resource allocation tables comprises a different number of entries than a second table of the multiple different time-domain resource allocation tables.
8. The method of claim 1 , wherein the multiple different time-domain resource allocation tables comprise a same number of entries.
9. A wireless device configured to determine a time-domain resource allocation, the wireless device adapted to:
receive from a network node a downlink control information, DCI, that schedules a downlink transmission;
detect a Radio Network Temporary Identifier, RNTI, used in the scheduling of the downlink transmission;
select a time-domain resource allocation table from multiple different time-domain resource allocation tables based on the detected RNTI, wherein each of the different time domain resource allocation tables is defined by a plurality of entries specifying different combinations of starting orthogonal frequency division multiplexing, OFDM, symbol and duration in OFDM symbols for a time-domain resource allocation; and
determine a time-domain resource allocation for the downlink transmission based on a time-domain resource allocation field in the DCI, the time-domain resource allocation field indicating an entry within the selected time-domain resource allocation table.
10. The wireless device of claim 9 , wherein the multiple different time-domain resource allocation tables relate to time-domain resource allocation for physical downlink shared channel, PDSCH, scheduling.
11. The wireless device of claim 9 , wherein the multiple different time-domain resource allocation tables comprise at least one pre-defined table with default values for the time domain resource allocation.
12. The wireless device of claim 9 , wherein the multiple different time-domain resource allocation tables comprise at least one radio resource control, RRC, configured table.
13. The wireless device of claim 9 , further adapted to:
receive a physical downlink shared channel, PDSCH, on a time-domain resource corresponding to the determined time-domain resource allocation.
14. The wireless device of claim 9 , adapted to select the time-domain resource allocation table by selecting the time-domain resource allocation table based on at least one of a Control Resource Set, CORESET, and a search space used for scheduling the downlink transmission.
15. The wireless device of claim 9 , wherein a first table of the multiple different time-domain resource allocation tables comprises a different number of entries than a second table of the multiple different time-domain resource allocation tables, or wherein the multiple different time-domain resource allocation tables comprise a same number of entries.