Failure detection and recovery for multiple active resources
Wireless communications using multiple active resources (e.g., bandwidth parts (BWPs)) are described. A wireless device may perform failure event detection, such as radio link monitoring (RLM) and/or beam failure detection (BFD), jointly or separately for multiple active resources (e.g., BWPs) based on one or more criteria.
1. A method comprising:
receiving, by a wireless device, one or more configuration parameters of a cell;
activating at least two downlink bandwidth parts (BWPs) of a plurality of downlink BWPs for the cell, wherein a set of one or more reference signals for beam failure detection is associated with a first downlink BWP of the plurality of downlink BWPs;
measuring the set of the one or more reference signals associated with the first downlink BWP; and
determining, based on the measuring, a beam failure for the at least two downlink BWPs.
2. The method of claim 1 , wherein the one or more configuration parameters indicate:
a first set of one or more reference signals for a beam failure detection associated with the first downlink BWP; and
a second set of one or more reference signals for a beam failure detection associated with a second downlink BWP of the at least two downlink BWPs.
3. The method of claim 1 , wherein the measuring the set of the one or more reference signals associated with the first downlink BWP is based on the activating the least two downlink BWPs for the cell.
4. The method of claim 1 , wherein the determining the beam failure for the at least two downlink BWPs is further based on:
a beam failure detection associated with the first downlink BWP of the at least two downlink BWPs; and
a beam failure detection associated with a second downlink BWP of the at least two downlink BWPs.
5. The method of claim 1 , wherein each of the plurality of downlink BWPs is in one of: an active state, or an inactive state.
6. The method of claim 1 , wherein an active state of the first downlink BWP of the at least two downlink BWPs comprises monitoring a downlink control channel of the first downlink BWP.
7. The method of claim 1 , wherein each of the plurality of downlink BWPs is associated with a BWP-specific index.
8. The method of claim 1 , further comprising determining the first downlink BWP, of the at least two downlink BWPs, based on at least one of:
a BWP-specific index among at least two BWP-specific indexes associated with the at least two downlink BWPs;
a determination that the first downlink BWP is a primary BWP;
a BWP-specific numerology;
a BWP-specific beam failure counter; or
a BWP-specific type of service.
9. The method of claim 1 , further comprising determining the first downlink BWP, of the at least two downlink BWPs, is a primary BWP.
10. The method of claim 1 , wherein the measuring the set of the one or more reference signals associated with the first downlink BWP comprises:
determining whether a radio link quality of the set of the one or more reference signals associated with the first downlink BWP satisfies a threshold.
11. The method of claim 10 , wherein the determining the beam failure for the at least two downlink BWPs is further based on the radio link quality not satisfying the threshold.
12. A method comprising:
receiving, by a wireless device, one or more configuration parameters for a first downlink bandwidth part (BWP) of a cell and for a second downlink BWP of the cell, wherein the one or more configuration parameters indicate:
a first set of one or more reference signals for a beam failure detection associated with the first downlink BWP; and
a second set of one or more reference signals for a beam failure detection associated with the second downlink BWP;
activating the first downlink BWP and the second downlink BWP;
measuring, based on the activating, the first set of one or more reference signals and the second set of one or more reference signals; and
determining, based on the measuring, a beam failure for the cell.
13. The method of claim 12 , wherein each of the first downlink BWP and the second downlink BWP is in one of: an active state, or an inactive state.
14. The method of claim 12 , wherein an active state of the first downlink BWP comprises monitoring a downlink control channel of the first downlink BWP.
15. The method of claim 12 , wherein each of the first downlink BWP and the second downlink BWP is associated with a BWP-specific index.
16. The method of claim 12 , wherein the determining the beam failure for the cell is further based on a radio link quality not satisfying a threshold.
17. A method comprising:
receiving, by a wireless device, one or more configuration parameters for a first downlink bandwidth part (BWP) of a cell and for a second downlink BWP of the cell, wherein the one or more configuration parameters indicate:
a first set of one or more reference signals for a beam failure detection associated with the first downlink BWP; and
a second set of one or more reference signals for a beam failure detection associated with the second downlink BWP;
activating the first downlink BWP and the second downlink BWP; and
based on the activating, performing beam failure detection of the cell comprising:
the beam failure detection associated with the first downlink BWP; and
the beam failure detection associated with the second downlink BWP; and
determining, based on the beam failure detection of the cell, an instance of a beam failure for the cell.
18. The method of claim 17 , wherein each of the first downlink BWP and the second downlink BWP is in one of: an active state, or an inactive state.
19. The method of claim 17 , wherein an active state of the first downlink BWP comprises monitoring a downlink control channel of the first downlink BWP.
20. The method of claim 17 , wherein each of the first downlink BWP and the second downlink BWP is associated with a BWP-specific index.