Trigger of beam failure recovery for preconfigured resource in radio resource control inactive state

1 . A method comprising:

receiving, by a wireless device in a radio resource control (RRC) connected state, an RRC release message indicating a configured grant for use in an RRC inactive state;

starting a configured grant timer in response to a data transmission via the configured grant;

measuring, in the RRC inactive state and based on the configured grant timer, a downlink signal for detection of a beam failure instance;

detecting, in the RRC inactive state and based on the measuring the downlink signal, the beam failure instance while the configured grant timer is running; and

transmitting, based on the detecting the beam failure instance while the configured grant timer is running, a beam failure recovery request.

2 . The method of claim 1 , wherein the measuring the downlink signal is based on the configured grant timer running.

3 . The method of claim 1 , wherein the measuring the downlink signal is based on starting the configured grant timer.

4 . The method of claim 1 , further comprising transitioning, based on the release message, the wireless device from the RRC connected state to the RRC inactive state.

5 . The method of claim 1 , wherein a timer value of the configured grant timer is smaller than a value of a periodicity of a plurality of configured grants comprising the configured grant.

6 . The method of claim 1 , wherein the RRC inactive state comprises an RRC idle state.

7 . The method of claim 1 , wherein the measuring the downlink signal is based on a measurement quantity value of a downlink reference signal.

8 . 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, in a radio resource control (RRC) connected state, an RRC release message indicating a configured grant for use in an RRC inactive state;

start a configured grant timer in response to a data transmission via the configured grant;

measure, in the RRC inactive state and based on the configured grant timer, a downlink signal for detection of a beam failure instance;

detect, in the RRC inactive state and based on the measuring the downlink signal, the beam failure instance while the configured grant timer is running; and

transmit, based on the detecting the beam failure instance while the configured grant timer is running, a beam failure recovery request.

9 . The wireless device of claim 8 , wherein measuring the downlink signal is based on the configured grant timer running.

10 . The wireless device of claim 8 , wherein measuring the downlink signal is based on starting the configured grant timer.

11 . The wireless device of claim 8 , wherein the instructions further cause the wireless device to transition, based on the release message, the wireless device from the RRC connected state to the RRC inactive state.

12 . The wireless device of claim 8 , wherein a timer value of the configured grant timer is smaller than a value of a periodicity of a plurality of configured grants comprising the configured grant.

13 . The wireless device of claim 8 , wherein the RRC inactive state comprises an RRC idle state.

14 . A non-transitory computer-readable medium comprising instructions that, when executed by one or more processors of a wireless device, cause the wireless device to:

receive, in a radio resource control (RRC) connected state, an RRC release message indicating a configured grant for use in an RRC inactive state;

start a configured grant timer in response to a data transmission via the configured grant;

measure, in the RRC inactive state and based on the configured grant timer, a downlink signal for detection of a beam failure instance;

detect, in the RRC inactive state and based on the measuring the downlink signal, the beam failure instance while the configured grant timer is running; and

transmit, based on the detecting the beam failure instance while the configured grant timer is running, a beam failure recovery request.

15 . The non-transitory computer-readable medium of claim 14 , wherein measuring the downlink signal is based on the configured grant timer running.

16 . The non-transitory computer-readable medium of claim 14 , wherein measuring the downlink signal is based on starting the configured grant timer.

17 . The non-transitory computer-readable medium of claim 14 , wherein the instructions further cause the wireless device to transition, based on the release message, the wireless device from the RRC connected state to the RRC inactive state.

18 . The non-transitory computer-readable medium of claim 14 , wherein a timer value of the configured grant timer is smaller than a value of a periodicity of a plurality of configured grants comprising the configured grant.

19 . The non-transitory computer-readable medium of claim 14 , wherein the RRC inactive state comprises an RRC idle state.

20 . The non-transitory computer-readable medium of claim 14 , wherein measuring the downlink signal is based on a measurement quantity value of a downlink reference signal.