Failure Recovery
Systems, apparatuses, and methods are described for wireless communications. A wireless device may inform a base station of a failure of a failure recovery procedure for a secondary cell. The wireless device may include an indicator of the failure in a report providing, or configured to provide, values for signal strength or other characteristic of a downlink signal. The indicator may be in addition to, and/or may replace, one or more indicators of signal strength or other characteristic.
1 . A method comprising:
receiving, by a wireless device, at least one configuration parameter that indicates at least one reference signal (RS) for a channel;
performing, based on a plurality of failures of a secondary cell, a failure recovery procedure for the secondary cell; and
based on the failure recovery procedure for the secondary cell being unsuccessful, stopping at least one of:
uplink transmission via a bandwidth part of the secondary cell; or
monitoring at least one downlink control channel of the secondary cell.
2 . The method of claim 1 , further comprising measuring an RS received power (RSRP) of the at least one RS.
3 . The method of claim 1 , wherein the failure recovery procedure is a beam failure recovery (BFR) procedure, and
wherein the plurality of failures of the secondary cell is a plurality of beam failures of the secondary cell.
4 . The method of claim 1 , wherein the at least one configuration parameter is received via at least one of:
a primary cell; or
another secondary cell different from the secondary cell.
5 . The method of claim 1 , further comprising measuring at least one signal associated with the channel to determine the plurality of failures of the secondary cell.
6 . The method of claim 1 , further comprising:
receiving at least one configuration parameter indicating a cell deactivation timer associated with the secondary cell,
wherein the stopping comprises stopping, before expiration of the cell deactivation timer and based on the failure recovery procedure for the secondary cell being unsuccessful, at least one of:
the uplink transmission; or
the monitoring.
7 . The method of claim 1 , further comprising determining that the failure recovery procedure is unsuccessful based on at least one of:
an expiration of a timer associated with the secondary cell; or
a maximum quantity of failure instances for the failure recovery procedure.
8 . The method of claim 1 , wherein the at least one RS comprises at least one of:
an RS of a primary cell; or
an RS of the secondary cell.
9 . A method comprising:
transmitting, by a base station, at least one configuration parameter that indicates at least one reference signal (RS) for a channel;
causing a wireless device to perform, based on a plurality of failures of a secondary cell, a failure recovery procedure for the secondary cell; and
based on the failure recovery procedure for the secondary cell being unsuccessful, stopping at least one of:
uplink reception via a bandwidth part of the secondary cell; or
downlink transmission via at least one downlink control channel of the secondary cell.
10 . The method of claim 9 , further comprising receiving a measurement report associated with an RS received power (RSRP) of the at least one RS.
11 . The method of claim 9 , wherein the failure recovery procedure is a beam failure recovery (BFR) procedure, and
wherein the plurality of failures of the secondary cell is a plurality of beam failures of the secondary cell.
12 . The method of claim 9 , wherein the at least one configuration parameter is transmitted via at least one of:
a primary cell; or
another secondary cell different from the secondary cell.
13 . The method of claim 9 , further comprising receiving at least one report associated with the channel to determine the plurality of failures of the secondary cell.
14 . The method of claim 9 , further comprising:
transmitting at least one configuration parameter indicating a cell deactivation timer associated with the secondary cell,
wherein the stopping comprises stopping, before expiration of the cell deactivation timer and based on the failure recovery procedure for the secondary cell being unsuccessful, at least one of:
the uplink reception; or
the downlink transmission.
15 . The method of claim 9 , wherein the at least one RS comprises at least one of:
an RS of a primary cell; or
an RS of the secondary cell.
16 . 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 at least one configuration parameter that indicates at least one reference signal (RS) for a channel;
perform, based on a plurality of failures of a secondary cell, a failure recovery procedure for the secondary cell; and
based on the failure recovery procedure for the secondary cell being unsuccessful, stop at least one of:
uplink transmission via a bandwidth part of the secondary cell; or
monitoring at least one downlink control channel of the secondary cell.
17 . The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, cause the wireless device to measure an RS received power (RSRP) of the at least one RS.
18 . The wireless device of claim 16 , wherein the failure recovery procedure is a beam failure recovery (BFR) procedure, and
wherein the plurality of failures of the secondary cell is a plurality of beam failures of the secondary cell.
19 . The wireless device of claim 16 , wherein the at least one configuration parameter is received via at least one of:
a primary cell; or
another secondary cell different from the secondary cell.
20 . The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, cause the wireless device to measure at least one signal associated with the channel to determine the plurality of failures of the secondary cell.
21 . The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, cause the wireless device to:
receive at least one configuration parameter indicating a cell deactivation timer associated with the secondary cell; and
stop, before expiration of the cell deactivation timer and based on the failure recovery procedure for the secondary cell being unsuccessful, at least one of:
the uplink transmission; or
the monitoring.
22 . The wireless device of claim 16 , wherein the instructions, when executed by the one or more processors, cause the wireless device to determine that the failure recovery procedure is unsuccessful based on at least one of:
an expiration of a timer associated with the secondary cell; or
a maximum quantity of failure instances for the failure recovery procedure.
23 . The wireless device of claim 16 , wherein the at least one RS comprises at least one of:
an RS of a primary cell; or
an RS of the secondary cell.
24 . A base station comprising:
one or more processors; and
memory storing instructions that, when executed by the one or more processors, cause the base station to:
transmit at least one configuration parameter that indicates at least one reference signal (RS) for a channel;
cause a wireless device to perform, based on a plurality of failures of a secondary cell, a failure recovery procedure for the secondary cell; and
based on the failure recovery procedure for the secondary cell being unsuccessful, stop at least one of:
uplink reception via a bandwidth part of the secondary cell; or
downlink transmission via at least one downlink control channel of the secondary cell.
25 . The base station of claim 24 , wherein the instructions, when executed by the one or more processors, cause the base station to receive a measurement report associated with an RS received power (RSRP) of the at least one RS.
26 . The base station of claim 24 , wherein the failure recovery procedure is a beam failure recovery (BFR) procedure, and
wherein the plurality of failures of the secondary cell is a plurality of beam failures of the secondary cell.
27 . The base station of claim 24 , wherein the at least one configuration parameter is transmitted via at least one of:
a primary cell; or
another secondary cell different from the secondary cell.
28 . The base station of claim 24 , wherein the instructions, when executed by the one or more processors, cause the base station to receive at least one report associated with the channel to determine the plurality of failures of the secondary cell.
29 . The base station of claim 24 , wherein the instructions, when executed by the one or more processors, cause the base station to:
transmit at least one configuration parameter indicating a cell deactivation timer associated with the secondary cell; and
stop, before expiration of the cell deactivation timer and based on the failure recovery procedure for the secondary cell being unsuccessful, at least one of:
the uplink reception; or
the downlink transmission.
30 . The base station of claim 24 , wherein the at least one RS comprises at least one of:
an RS of a primary cell; or
an RS of the secondary cell.