Unified downlink control information for beam management
Systems, apparatuses, and methods are described for wireless communications. A base station may transmit downlink control information that may comprise an indication for an uplink beam management procedure or a downlink beam failure recovery procedure. A wireless device may receive the downlink control information and determine a type of procedure to perform based on the indication.
1. A method comprising:
receiving, by a wireless device via a downlink control channel, downlink control information (DCI) comprising:
one or more beam information fields indicating one or more beams; and
a beam procedure type field, for the one or more beams, wherein a value of the beam procedure type field indicates one beam procedure type, of a plurality of beam procedure types, to be performed via the one or more beams; and
performing, based on the value, a beam procedure of the one beam procedure type via the one or more beams.
2. The method of claim 1 , wherein:
one of the plurality of beam procedure types is a downlink beam failure recovery procedure; and
the performing the beam procedure comprises transmitting, after one or more beam failures and based on one or more parameters for the downlink beam failure recovery procedure, a beam failure recovery request.
3. The method of claim 1 , wherein:
one of the plurality of beam procedure types is an uplink beam management procedure; and
the performing the beam procedure comprises transmitting, based on one or more parameters for the uplink beam management procedure and after receiving second DCI indicating sounding reference signal transmission, one or more sounding reference signals for uplink beam management.
4. The method of claim 1 , further comprising determining, based on the beam procedure type field, that the DCI comprises one or more of:
a sounding reference signal resource index; or
a channel state information reference signal resource index.
5. The method of claim 1 , wherein:
one of the plurality of beam procedure types is a downlink beam management procedure; and
the beam procedure type field indicates that the one or more beam information fields comprises one or more beam parameters for the downlink beam management procedure.
6. The method of claim 1 , wherein the performing the beam procedure comprises:
determining, based on the one or more beam information fields, one or more adjusted receiving beams, wherein the beam procedure type field indicates that the one or more beam information fields comprises one or more beam parameters for a downlink beam failure recovery procedure.
7. The method of claim 1 , wherein the performing the beam procedure comprises:
determining, based on the one or more beam information fields, one or more adjusted transmitting beams, wherein the beam procedure type field indicates that the one or more beam information fields comprises one or more beam parameters for an uplink beam management procedure.
8. The method of claim 1 , further comprising receiving one or more parameters for a downlink beam failure recovery procedure comprising one or more of:
first reference signal (RS) resource parameters of a first plurality of reference signals (RSs);
second RS resource parameters of a second plurality of RSs; or
random access channel resources.
9. The method of claim 1 , further comprising receiving one or more parameters for an uplink beam management procedure comprising one or more of:
a bandwidth of a sounding reference signal (SRS);
a numerology of the SRS;
a frequency resource of the SRS; or
a time resource of the SRS.
10. The method of claim 1 , wherein the one or more beam information fields comprise at least one of:
a first bits field indicating a first reference signal (RS) index associated with one or more reference signals; or
a second bits field indicating a second RS index associated with one or more of an RS or a synchronization block.
11. The method of claim 1 , wherein the beam procedure type field indicates of:
a downlink beam failure recovery procedure;
a downlink beam management procedure; or
an uplink beam management procedure.
12. A method comprising:
receiving, by a wireless device, one or more radio resource control (RRC) messages indicating a plurality of beam procedure types;
receiving, via a downlink control channel, a plurality of downlink control information (DCI) transmissions for the plurality of beam procedure types, wherein each DCI transmission, of the plurality of DCI transmissions, comprises:
one or more beam information fields comprising one or more beam parameters; and
a beam procedure type field indicating, for the one or more beam information fields, a beam procedure type of the plurality of beam procedure types indicated by the one or more RRC messages; and
determining, based on the beam procedure type field and the one or more beam information fields, a downlink beam adjustment or an uplink beam adjustment.
13. The method of claim 12 , further comprising:
receiving one or more parameters for a downlink beam failure recovery procedure, wherein one of the plurality of beam procedure types is the downlink beam failure recovery procedure; and
transmitting, after one or more beam failures and based on the one or more parameters for the downlink beam failure recovery procedure, a beam failure recovery request.
14. The method of claim 12 , further comprising:
receiving one or more parameters for an uplink beam management procedure, wherein one of the plurality of beam procedure types is the uplink beam management procedure; and
transmitting, based on the one or more parameters for the uplink beam management procedure and after receiving second DCI indicating sounding reference signal transmission, one or more sounding reference signals for the uplink beam management procedure.
15. The method of claim 12 , further comprising:
determining, based on the beam procedure type field indicating that the one or more beam information fields are associated with an uplink beam management procedure, that the DCI comprises one or more sounding reference signal resource indexes.
16. The method of claim 12 , further comprising:
determining, based on the beam procedure type field indicating that the one or more beam information fields are associated with a downlink beam failure recovery procedure, that the DCI comprises one or more channel state information reference signal resource indexes.
17. The method of claim 12 , wherein the determining the downlink beam adjustment comprises:
determining, based on the one or more beam information fields, one or more adjusted receiving beams, wherein the beam procedure type field indicates that the one or more beam information fields are associated with a beam failure recovery procedure.
18. The method of claim 12 , wherein the determining the uplink beam adjustment comprises:
determining, based on the one or more beam information fields, one or more adjusted transmitting beams, wherein the beam procedure type field indicates that the one or more beam information fields are associated with an uplink beam management procedure.
19. The method of claim 12 , wherein the beam procedure type field indicates at least one of:
a downlink beam failure recovery procedure;
a downlink beam management procedure; or
an uplink beam management procedure.
20. The method of claim 12 , further comprising transmitting an uplink signal associated with the beam procedure type of the plurality of beam procedure types, wherein the uplink signal comprises at least one of:
a preamble associated with a beam failure recovery procedure;
a beam report associated with a downlink beam management procedure; or
a sounding reference signal associated with an uplink beam management procedure.
21. A method comprising:
transmitting, by a base station via a downlink control channel, downlink control information (DCI) comprising:
one or more beam information fields indicating one or more beams; and
a beam procedure type field, for the one or more beams, wherein a value of the beam procedure type field indicates one beam procedure type, of a plurality of beam procedure types, to be performed via the one or more beams; and
receiving, based on the value and associated with a beam procedure of the one beam procedure type, at least one message.
22. The method of claim 21 , further comprising:
determining, based on the beam procedure type field associating the one or more beam information fields with an uplink beam management procedure, one or more sounding reference signal resource indexes for the DCI.
23. The method of claim 21 , further comprising:
determining, based on the beam procedure type field associating the one or more beam information fields with a downlink beam failure recovery procedure, one or more channel state information reference signal resource indexes for the DCI.
24. The method of claim 21 , wherein the beam procedure type field indicates:
a downlink beam failure recovery procedure;
a downlink beam management procedure; or
an uplink beam management procedure.
25. The method of claim 21 , further comprising receiving an uplink signal associated with the one beam procedure type of the plurality of beam procedure types, wherein the uplink signal comprises at least one of:
a preamble associated with a beam failure recovery procedure;
a beam report associated with a downlink beam management procedure; or
a sounding reference signal associated with an uplink beam management procedure.
26. A method comprising:
transmitting, by a base station, one or more radio resource control (RRC) messages indicating a plurality of beam procedure types;
transmitting, via a downlink control channel, a plurality of downlink control information (DCI) transmissions for the plurality of beam procedure types, wherein each DCI transmission, of the plurality of DCI transmissions, comprises:
one or more beam information fields comprising one or more beam parameters; and
a beam procedure type field indicating, for the one or more beam information fields, a beam procedure type of the plurality of beam procedure types indicated by the one or more RRC messages; and
determining, based on the beam procedure type field and the one or more beam information fields, a downlink beam adjustment or an uplink beam adjustment.
27. The method of claim 26 , further comprising:
determining, based on the beam procedure type field associating the one or more beam information fields with an uplink beam management procedure, one or more sounding reference signal resource indexes for the DCI.
28. The method of claim 26 , further comprising:
determining, based on the beam procedure type field associating the one or more beam information fields with a downlink beam failure recovery procedure, one or more channel state information reference signal resource indexes for the DCI.
29. The method of claim 26 , wherein the beam procedure type field indicates at least one of:
a downlink beam failure recovery procedure;
a downlink beam management procedure; or
an uplink beam management procedure.
30. The method of claim 26 , further comprising receiving an uplink signal associated with the beam procedure type of the plurality of beam procedure types, wherein the uplink signal comprises one or more of:
a preamble associated with a beam failure recovery procedure;
a beam report associated with a downlink beam management procedure; or
a sounding reference signal associated with an uplink beam management procedure.