Configuration method and apparatus for beam failure recovery and communication system
A configuration method and apparatus for beam failure recovery and communication system. The method includes: receiving configurations for beam failure recovery transmitted by a network device; the configurations at least include resource information and/or preamble information used to request a beam failure recovery; and removing at least a part of time frequency resources and/or preambles from the configurations used to request the beam failure recovery. Hence, the terminal equipment is able to remove or release resources and/or preambles of the dedicated configurations, validity of the resources and/or preambles in the dedicated configurations may be controlled, and the resources and/or preambles in the dedicated configurations may be utilized more efficiently at lower signaling overhead.
1. A configuration apparatus for beam failure recovery, comprising:
a memory that stores a plurality of instructions; and
a processor coupled to the memory and configured to execute the instructions to:
receive configurations for beam failure recovery transmitted by a network device; wherein, the configurations at least include resource information and/or preamble information used to trigger a beam failure recovery; and
set one or more timers; wherein the one or more timers is/are started in a case where beam failure recovery procedure is initiated; and
configure resource and/or preambles for the beam failure recovery,
wherein the processor is further configured to:
release or not use time resources and/or frequency resources to which the one or more timers corresponds(s) from available resources for the beam failure recovery when the one or more timers expire(s); and/or
release or not use preambles for the beam failure recovery to which the one or more timers correspond(s) from available preambles for the beam failure recovery when the one or more timers expire(s).
2. The apparatus according to claim 1 , wherein the processor is further configured to:
transmit a beam failure recovery request to the network device by using the configurations to which one or more candidate beams correspond.
3. The apparatus according to claim 2 , wherein the processor is further configured to:
release or not use time resources and/or frequency resources to which one or more candidate beams becoming a serving beam/serving beams correspond(s) from available resources when the beam failure recovery is successfully completed, and/or
release or not use preambles to which one or more candidate beams becoming a serving beam/serving beams correspond(s) from available preambles when the beam failure recovery is successfully completed.
4. The apparatus according to claim 2 , wherein the processor is further configured to:
release or not use time resources and/or frequency resources of the configurations used to trigger the beam failure recovery from available resources when the beam failure recovery is unsuccessfully completed, and/or
release or not use preambles of the configurations used to trigger the beam failure recovery from available preambles when the beam failure recovery is unsuccessfully completed.
5. The apparatus according to claim 1 , wherein the processor is further configured to:
determine one or more candidate beams according to a measurement result.
6. The apparatus according to claim 5 , wherein the processor is further configured to:
release or not use time resources and/or frequency resources to which one or more beams correspond(s) from available resources when the one or more beams is/are not comprised in the candidate beam(s), and/or
release or not use preambles to which one or more beams correspond(s) from available preambles when the one or more beams is/are not comprised in the candidate beam(s).
7. The apparatus according to claim 1 , wherein a set of time resources and/or frequency resources and/or preambles is configured with a timer, or a group of sets of time resources and/or frequency resources and/or preambles is configured with a timer.
8. The apparatus according to claim 1 , wherein the processor is further configured to:
receive indication information used for restarting or stopping the one or more timers and transmitted by the network device.
9. The apparatus according to claim 8 , wherein the indication information is carried by a medium access control (MAC) control element (CE) and/or a physical downlink control channel (PDCCH).
10. The apparatus according to claim 1 , wherein the processor is further configured to:
transmit information indicating that resources and/or preambles are released or not used, to the network device.