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 network device for communicating with a terminal equipment via a communication network, comprising:
a memory that stores a plurality of instructions; and
processor circuitry coupled to the memory and configured to execute the instructions to:
transmit first information including configurations for beam failure recovery and timer information to the terminal equipment;
wherein the configurations at least include resource information and/or preamble information used to trigger a beam failure recovery in the terminal equipment, and the timer information is related to one or more timers to be started when a beam failure recovery procedure is initiated in the terminal equipment; and
wherein the terminal equipment is configured to, when a timer among the one or more timers expire(s), release or not use time resources and/or frequency resources to which the expired timer corresponds from available resources for the beam failure recovery, and/or
release or not use preambles for the beam failure recovery to which the expired timer corresponds from available preambles for the beam failure recovery.
2. The network device according to claim 1 , wherein the processor circuitry is configured to:
receive a beam failure recovery request transmitted from the terminal equipment using the configurations to which one or more candidate beams correspond.
3. The network device according to claim 1 , wherein the processor circuitry is configured to:
transmit indication information used for restarting or stopping the one or more timers.
4. The network device according to claim 3 , wherein the indication information is carried by a medium access control (MAC) control element (CE) and/or a physical downlink control channel (PDCCH).
5. The network device according to claim 1 , wherein the processor circuitry is configured to:
receives information indicating that resources and/or preambles are released or not used from the terminal equipment.
6. A terminal equipment for communicating with a network device via a communication network, comprising:
a memory that stores a plurality of instructions; and
processor circuitry coupled to the memory and configured to execute the instructions to:
receive configurations for beam failure recovery transmitted by the 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, when a timer among the one or more timers expire(s),
release or not use time resources and/or frequency resources to which the expired timer corresponds from available resources for the beam failure recovery, and/or
release or not use preambles for the beam failure recovery to which the expired timer corresponds from available preambles for the beam failure recovery.
7. The terminal equipment according to claim 6 , wherein the processor circuitry is configured to:
transmit a beam failure recovery request to the network device by using the configurations to which one or more candidate beams correspond.
8. The terminal equipment according to claim 7 , wherein the processor circuitry is 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.
9. The terminal equipment according to claim 7 , wherein the processor circuitry is 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.
10. The terminal equipment according to claim 6 , wherein the processor circuitry is configured to:
determine one or more candidate beams according to a measurement result.
11. The terminal equipment according to claim 10 , wherein the processor circuitry is 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).
12. The terminal equipment according to claim 6 , 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.
13. The terminal equipment according to claim 6 , wherein the processor circuitry is further configured to:
receive indication information used for restarting or stopping the one or more timers and transmitted by the network device.
14. The terminal equipment according to claim 13 , wherein the indication information is carried by a medium access control (MAC) control element (CE) and/or a physical downlink control channel (PDCCH).
15. The terminal equipment according to claim 6 , wherein the processor circuitry is further configured to:
transmit information indicating that resources and/or preambles are released or not used, to the network device.
16. A communication system, comprising:
a network device, wherein the network device transmits, first information including configurations for beam failure recovery and timer information;
a terminal equipment, wherein the terminal equipment receives the first information transmitted by the network device; wherein,
the terminal equipment,
receives configurations for beam failure recovery transmitted by the network device; wherein, the configurations at least include resource information and/or preamble information used to trigger a beam failure recovery; and
sets one or more timers; wherein the one or more timers is/are started in a case where beam failure recovery procedure is initiated; and
configures resource and/or preambles for the beam failure recovery; wherein, when a timer among the one or more timers expire(s),
releases or does not use time resources and/or frequency resources to which the expired timer corresponds from available resources for the beam failure recovery, and/or
releases or does not use preambles for the beam failure recovery to which the expired timer corresponds from available preambles for the beam failure recovery.
17. A communication system, comprising:
a network device, wherein the network device transmits first information including configurations for beam failure recovery and timer information;
a terminal equipment, wherein the terminal equipment receives the first information transmitted by the network device; wherein,
the network device,
transmits first information including configurations for beam failure recovery and timer information to the terminal equipment;
wherein the configurations at least include resource information and/or preamble information used to trigger a beam failure recovery in the terminal equipment, and the timer information is related to one or more timers to be started when a beam failure recovery procedure is initiated in the terminal equipment; and
wherein the terminal equipment, when a timer among the one or more timers expire(s), releases or does not use time resources and/or frequency resources to which the expired timer corresponds from available resources for the beam failure recovery, and/or
releases or does not use preambles for the beam failure recovery to which the expired timer corresponds from available preambles for the beam failure recovery.