Bandwidth part slot format indication
A wireless device receives configuration parameters comprising a monitoring periodicity and a first parameter indicating symbol(s). A downlink control channel is monitored for a DCI indicating slot formats of bandwidth part(s) of a cell during monitoring symbol(s) determined based on the monitoring periodicity and the first parameter. The DCI may be received during the monitoring symbol(s). The DCI may comprise first fields identifying the bandwidth part(s) of the cell. The DCI may comprise second field(s) indicating slot formats of the bandwidth part(s). A first slot format of an active bandwidth part of the bandwidth part(s) may be determined based on the first field(s) and the second field(s). The wireless device may transmit transport block(s) in uplink symbol(s) of the active bandwidth part determined based on the first slot format.
1. A method comprising:
receiving, by a wireless device, configuration parameters comprising:
a monitoring periodicity; and
a first parameter indicating one or more symbols;
monitoring a downlink control channel for a downlink control information indicating slot formats of one or more bandwidth parts of a cell, wherein the monitoring is during at least one monitoring symbol determined based on the monitoring periodicity and the first parameter;
receiving the downlink control information during the at least one monitoring symbol, wherein the downlink control information comprises:
one or more first fields identifying the one or more bandwidth parts of the cell; and
one or more second fields indicating slot formats of the one or more bandwidth parts;
determining a first slot format of an active bandwidth part of the one or more bandwidth parts based on the one or more first fields and the one or more second fields; and
transmitting one or more transport blocks in one or more uplink symbols, of the active bandwidth part, determined based on the first slot format.
2. The method of claim 1 , wherein:
the one or more first fields comprise a plurality of bits; and
a first bit in the plurality of bits corresponds to a first bandwidth part in the one or more bandwidth parts; and
a first value of the first bit indicates whether the downlink control information indicates a slot format for the first bandwidth part.
3. The method of claim 2 , wherein:
the configuration parameters indicate a slot format indication radio network temporary identifier; and
the downlink control information corresponds to the slot format indication radio network temporary identifier.
4. The method of claim 2 , wherein the first slot format indicates:
the one or more uplink symbols;
zero or more downlink symbols; and
zero or more flexible symbols.
5. The method of claim 2 , wherein the downlink control information is transmitted via a group common control channel.
6. The method of claim 2 , wherein:
the first parameter comprises a plurality of bits comprising a first bit;
the first bit corresponds to a first symbol; and
a value of the first bit indicates that the first symbol is a monitoring symbol.
7. The method of claim 1 , wherein the one or more first fields comprise one or more identifiers of the one or more bandwidth parts.
8. The method of claim 7 , wherein:
the configuration parameters indicate a slot format indication radio network temporary identifier; and
the downlink control information corresponds to the slot format indication radio network temporary identifier.
9. The method of claim 7 , wherein the first slot format indicates:
the one or more uplink symbols;
zero or more downlink symbols; and
zero or more flexible symbols.
10. The method of claim 7 , wherein the downlink control information is transmitted via a group common control channel.
11. The method of claim 7 , wherein:
the first parameter comprises a plurality of bits comprising a first bit;
the first bit corresponds to a first symbol; and
a value of the first bit indicates that the first symbol is a monitoring symbol.
12. The method of claim 1 , wherein the cell comprises a plurality of bandwidth parts comprising the one or more bandwidth parts.
13. The method of claim 12 , wherein:
a second bandwidth part of the plurality of bandwidth parts is not in the one or more bandwidth parts; and
a second slot format of the second bandwidth part is unchanged in response to receiving the downlink control information.
14. The method of claim 1 , wherein:
the configuration parameters indicate a slot format indication radio network temporary identifier; and
the downlink control information corresponds to the slot format indication radio network temporary identifier.
15. The method of claim 1 , wherein the first slot format indicates:
the one or more uplink symbols;
zero or more downlink symbols; and
zero or more flexible symbols.
16. The method of claim 1 , wherein the downlink control information is transmitted via a group common control channel.
17. The method of claim 1 , wherein:
the first parameter comprises a plurality of bits comprising a first bit;
the first bit corresponds to a first symbol; and
a value of the first bit indicates that the first symbol is a monitoring symbol.
18. The method of claim 1 , wherein the monitoring periodicity indicates a first number of slots.
19. The method of claim 1 , further comprising receiving a second downlink control information indicating transmission of the one or more transport blocks.
20. The method of claim 1 , wherein the wireless device monitors the downlink control channel during at least one monitoring symbol in response to a discontinuous reception procedure indicating that the wireless device is in an active time during the at least one monitoring symbol.