Wireless device and wireless network processes for control channel transmission
A wireless device receives configuration parameters comprising first configuration parameters of a first search space and second configuration parameters of a second search space. The configuration parameters may comprise at least one configuration parameter indicating that the first search space and the second search space are used together for reception of DCI. The wireless device may receive a first signal associated with a first DCI via a downlink control channel and based on the first configuration parameters of the first search space. The wireless device may receive a second signal associated with a repetition of the first DCI via the downlink control channel and based on the second configuration parameters of the second search space. The wireless device may transmit or receive a transport block based on the first DCI.
1. A method comprising:
receiving, by a wireless device, configuration parameters comprising first configuration parameters of a first search space and second configuration parameters of a second search space, wherein the configuration parameters comprise at least one configuration parameter indicating that the first search space and the second search space are used together for reception of downlink control information (DCI);
receiving, via a downlink control channel and based on the first configuration parameters of the first search space, a first signal associated with a first DCI;
receiving, via the downlink control channel and based on the second configuration parameters of the second search space, a second signal associated with a repetition of the first DCI; and
transmitting or receiving a transport block based on the first DCI.
2. The method of claim 1 , wherein:
the first search space is associated with a first control resource set (CORESET); and
the second search space is associated with a second CORESET.
3. The method of claim 2 , wherein:
the receiving the first signal is based on first resources associated with the first CORESET; and
the receiving the second signal is based on second resources associated with the second CORESET.
4. The method of claim 2 , wherein the first CORESET and the second CORESET are in the same slot.
5. The method of claim 2 , wherein CORESET configuration parameters of a CORESET comprise a duration parameter indicating a time duration in number of symbols.
6. The method of claim 2 , wherein:
the first configuration parameters of the first search space comprise a first parameter indicating a first identifier of the first CORESET; and
the second configuration parameters of the second search space comprise a second parameter indicating a second identifier of the second CORESET.
7. The method of claim 2 , wherein:
the first CORESET is associated with a first transmission configuration indicator (TCI) state; and
the second CORESET is associated with a second TCI state.
8. The method of claim 1 , wherein the first configuration parameters of the first search space comprise the at least one configuration parameter.
9. The method of claim 1 , wherein the first search space and the second search space are wireless device specific search spaces.
10. The method of claim 9 , wherein:
the first search space is associated with a first control resource set (CORESET); and
the second search space is associated with a second CORESET.
11. The method of claim 10 , wherein the first CORESET and the second CORESET are in the same slot.
12. The method of claim 10 , wherein CORESET configuration parameters of a CORESET comprise a duration parameter indicating a time duration in number of symbols.
13. The method of claim 1 , wherein the first search space and the second search space are common search spaces.
14. The method of claim 13 , wherein:
the first search space is associated with a first control resource set (CORESET); and
the second search space is associated with a second CORESET.
15. The method of claim 14 , wherein the first CORESET and the second CORESET are in the same slot.
16. The method of claim 14 , wherein CORESET configuration parameters of a CORESET comprise a duration parameter indicating a time duration in number of symbols.
17. The method of claim 1 , wherein a parameter in the first configuration parameters of the first search space has the same value as a corresponding parameter in the second configuration parameters of the second search space.
18. The method of claim 17 , wherein:
the first search space is associated with a first control resource set (CORESET); and
the second search space is associated with a second CORESET.
19. The method of claim 18 , wherein the first CORESET and the second CORESET are in the same slot.
20. The method of claim 18 , wherein CORESET configuration parameters of a CORESET comprise a duration parameter indicating a time duration in number of symbols.