Beam management and beam indication in a radio system
A wireless device receives one or more messages comprising spatial relation configuration parameters of a physical uplink control channel. The configuration parameters indicate a plurality of reference signal (RS) sets. An RS set of the plurality of RS sets comprises one or more RSs. A medium access control control element, activating the RS set of the plurality of RS sets, is received. A downlink control information, indicating an RS of the RS set, is received. A spatial domain transmission filter, for the physical uplink control channel, is determined based on based on the RS. Uplink control information is transmitted, via the physical uplink control channel, based on the spatial domain transmission filter.
1. A method comprising:
receiving, by a wireless device from a base station, one or more messages comprising spatial relation configuration parameters of a physical uplink control channel, wherein the spatial relation configuration parameters indicate a plurality of reference signal (RS) sets, wherein each RS set of the plurality of RS sets comprises two or more downlink RSs and is associated with a respective RS set index;
receiving a medium access control control element indicating respective RS set indexes for multiple RS sets of the plurality of RS sets;
receiving downlink control information indicating an RS set of the multiple RS sets;
determining, based on a downlink RS of the RS set and a capability of beam correspondence of the wireless device, a spatial domain transmission filter for the physical uplink control channel; and
transmitting uplink control information via the physical uplink control channel based on the spatial domain transmission filter.
2. The method of claim 1 , wherein each of the plurality of RS sets comprises at least one of:
one or more synchronization signal blocks;
one or more channel state information reference signals; and
one or more sounding reference signals.
3. The method of claim 1 , wherein the downlink control information further indicates an RS set index of the RS set.
4. The method of claim 1 , wherein the downlink RS is associated with an uplink beam or a downlink beam.
5. The method of claim 1 , wherein the determining the spatial domain transmission filter based on the capability of beam correspondence comprises determining that the spatial domain transmission filter is a same spatial domain transmission filter used for reception of a synchronization signal block of the RS set.
6. The method of claim 1 , wherein the determining the spatial domain transmission filter based on the capability of beam correspondence comprises determining that the spatial domain transmission filter is a same spatial domain transmission filter used for reception of a channel state information reference signal of the RS set.
7. The method of claim 1 , wherein the determining the spatial domain transmission filter is further based on a sounding reference signal of the RS set.
8. The method of claim 7 , wherein the determining the spatial domain transmission filter further based on the sounding reference signal comprises determining that the spatial domain transmission filter is a same spatial domain transmission filter used for a transmission of the sounding reference signal.
9. The method of claim 1 , wherein the transmitting the uplink control information via the physical uplink control channel based on the spatial domain transmission filter comprises transmitting the uplink control information via the physical uplink control channel with an uplink beam associated with the spatial domain transmission filter.
10. A wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages comprising spatial relation configuration parameters of a physical uplink control channel, wherein the spatial relation configuration parameters indicate a plurality of reference signal (RS) sets, wherein each RS set of the plurality of RS sets comprises two or more downlink RSs and is associated with a respective RS set index;
receive a medium access control control element indicating respective RS set indexes for multiple RS sets of the plurality of RS sets;
receive downlink control information indicating an RS set of the multiple RS sets;
determine, based on a downlink RS of the RS set and a capability of beam correspondence of the wireless device, a spatial domain transmission filter for the physical uplink control channel; and
transmit uplink control information via the physical uplink control channel based on the spatial domain transmission filter.
11. The wireless device of claim 10 , wherein each of the plurality of RS sets comprises at least one of:
one or more synchronization signal blocks;
one or more channel state information reference signals; and
one or more sounding reference signals.
12. The wireless device of claim 10 , wherein the downlink control information further indicates an RS set index of the RS set.
13. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine that the spatial domain transmission filter is a same spatial domain transmission filter used for reception of a synchronization signal block of the RS set.
14. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine that the spatial domain transmission filter is a same spatial domain transmission filter used for reception of a channel state information reference signal of the RS set.
15. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine the spatial domain transmission filter further based on a sounding reference signal of the RS set.
16. The wireless device of claim 15 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to determine that the spatial domain transmission filter is a same spatial domain transmission filter used for a transmission of the sounding reference signal.
17. The wireless device of claim 10 , wherein the instructions, when executed by the one or more processors, further cause the wireless device to transmit the uplink control information via the physical uplink control channel with an uplink beam associated with the spatial domain transmission filter.
18. A system comprising:
a wireless device comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
receive one or more messages comprising spatial relation configuration parameters of a physical uplink control channel, wherein the spatial relation configuration parameters indicate a plurality of reference signal (RS) sets, wherein each RS set of the plurality of RS sets comprises two or more downlink RSs and is associated with a respective RS set index;
receive a medium access control control element indicating respective RS set indexes for multiple RS sets of the plurality of RS sets;
receive downlink control information indicating an RS set of the multiple RS sets;
determine, based on a downlink RS of the RS set and a capability of beam correspondence of the wireless device, a spatial domain transmission filter for the physical uplink control channel; and
transmit uplink control information via the physical uplink control channel based on the spatial domain transmission filter; and
a base station comprising:
one or more second processors; and
second memory storing second instructions that, when executed by the one or more second processors, cause the base station to:
transmit, to the wireless device, the one or more messages;
transmit the medium access control control element;
transmit the downlink control information; and
receive the uplink control information.