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 allocated to the wireless device by a network node for a scheduled transmission in downlink, the method comprising:
obtaining first information available to both the wireless device and the network node;
selecting a time-domain resource allocation table from multiple different time-domain resource allocation tables based on the first information, wherein the time domain resource allocation table is defined by a plurality of entries each specifying a different combination 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 entry within the selected time-domain resource allocation table based on a time-domain resource allocation field in a downlink control information, DCI, received from the network node, wherein the first information is distinct from information in the time-domain resource allocation field of the DCI.
2. The method of claim 1 , wherein the first information comprises a Radio Network Temporary Identifier, RNTI.
3. The method of claim 1 , wherein the first information comprises information indicating a search space related to a control channel used for the scheduling.
4. The method of claim 1 , wherein the multiple time-domain resource allocation tables relate to time-domain resource allocation for physical downlink shared channel, PDSCH, scheduling.
5. The method of claim 1 wherein the multiple time-domain resource allocation tables comprise at least one of pre-defined tables with default values for the time domain resource allocation and radio resource control, RRC, configured tables.
6. 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 entry.
7. The method of claim 1 , further comprising:
monitoring the time-domain resource indicated by the time-domain resource allocation entry within the selected time-domain resource allocation table, the time-domain resource monitored for the scheduled transmission in downlink.
8. A method performed by a network node for allocating a time-domain resource to a wireless device for a scheduled transmission in downlink, the method comprising:
obtaining first information available to both the wireless device and the network node; and
transmitting a time-domain resource allocation field in a downlink control information, DCI, to the wireless device, the time domain resource allocation field indicating a time-domain resource allocation entry within a time-domain resource allocation table, the time domain resource allocation table being defined by a plurality of entries each specifying a different combination of starting orthogonal frequency division multiplexing, OFDM, symbol and duration in OFDM symbols for a time-domain resource allocation, wherein the time-domain resource allocation table is selected from multiple different time-domain resource allocation tables based on the first information, and wherein the first information is distinct from information in the time-domain resource allocation field of the DCI.
9. The method of claim 8 , wherein the first information comprises a Radio Network Temporary Identifier, RNTI.
10. The method of claim 8 , wherein the first information comprises information indicating a search space related to a control channel used for the scheduling.
11. The method of claim 8 , wherein the multiple time-domain resource allocation tables relate to time-domain resource allocation for physical downlink shared channel, PDSCH, scheduling.
12. The method of claim 8 , wherein the multiple time-domain resource allocation tables comprise at least one of pre-defined tables with default values for the time domain resource allocation and radio resource control, RRC, configured tables.
13. The method of claim 1 , further comprising:
transmitting a physical downlink shared channel, PDSCH, on a time-domain resource corresponding to the time-domain resource allocation entry indicated by the DCI.
14. A wireless device, the wireless device comprising:
processing circuitry operable to:
obtain first information available to both the wireless device and a network node;
select a time-domain resource allocation table from multiple different time-domain resource allocation tables based on the first information, wherein the time domain resource allocation table is defined by a plurality of entries each specifying a different combination 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 entry within the selected time-domain resource allocation table based on a time-domain resource allocation field in a downlink control information, DCI, received from the network node, wherein the first information is distinct from information in the time-domain resource allocation field of the DCI.
15. The wireless device of claim 14 , wherein the first information comprises a Radio Network Temporary Identifier, RNTI.
16. The wireless device of claim 14 , wherein the processing circuitry is further operable to:
monitor the time-domain resource indicated by the time-domain resource allocation entry within the selected time-domain resource allocation table, the time-domain resource monitored for a scheduled transmission in downlink.
17. A network node, the network node comprising:
processing circuitry operable to:
obtain first information available to both a wireless device and the network node; and
transmit a time-domain resource allocation field in a downlink control information, DCI, to the wireless device, the time domain resource allocation field indicating a time-domain resource allocation entry within a time-domain resource allocation table, the time domain resource allocation table being defined by a plurality of entries each specifying a different combination of starting orthogonal frequency division multiplexing, OFDM, symbol and duration in OFDM symbols for a time-domain resource allocation, wherein the time-domain resource allocation table is selected from multiple different time-domain resource allocation tables based on the first information, and wherein the first information is distinct from information in the time-domain resource allocation field of the DCI.
18. The network node of claim 17 , wherein the first information comprises a Radio Network Temporary Identifier, RNTI.