Trigger of beam failure recovery for preconfigured resource in radio resource control inactive state
A wireless device receives, in a radio resource control (RRC) connected state, an RRC release message indicating a configured grant for use in an RRC inactive state. The wireless device measures, in the RRC inactive state and based on a time duration started in response to a data transmission via the configured grant, a downlink signal for detection of a beam failure instance.
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.