METHOD AND APPARATUS FOR CONFIGURING BEAM FAILURE DETECTION REFERENCE SIGNAL

1 . An apparatus for configuring a beam failure detection reference signal, the apparatus comprising:

a memory that stores a plurality of instructions; and

processor circuitry coupled to the memory and configured to execute the instructions to:

configure a first reference signal for beam failure detection by using radio resource control signaling; and

configure or update the first reference signal by using media access control control element signaling.

2 . The apparatus according to claim 1 , wherein the first reference signal is a second reference signal for transmission reception point-specific beam failure detection.

3 . The apparatus according to claim 2 , wherein

the radio resource control signaling includes a first beam failure detection reference signal set and a second beam failure detection reference signal set, wherein when the first beam failure detection reference signal set exists, the second beam failure detection reference signal set compulsorily exists;

the first beam failure detection reference signal set and the second beam failure detection reference signal set respectively include a group identifier, the group identifier compulsorily existing, and a value of the group identifier being 1 or 2;

the first beam failure detection reference signal set and the second beam failure detection reference signal set respectively include a group of the second reference signals, the second reference signal including second reference signal identifier and detection resource; and

the first beam failure detection reference signal set and the second beam failure detection reference signal set respectively include a group of released second reference signal identifiers.

4 . The apparatus according to claim 1 , wherein the processor circuitry is further configured to:

configure a third reference signal for failure detection by using the radio resource control signaling.

5 . The apparatus according to claim 4 , wherein,

the radio resource control signaling includes a first indication field, the first indication field being used for indicating a purpose of the third reference signal,

wherein if the radio resource control signaling configures reference signal(s) for transmission reception point-specific beam failure detection, a value of the first indication field is configured as being of a radio link failure.

6 . The apparatus according to claim 2 , wherein the processor circuitry is further configured to:

configure or indicate or associate information on a transmission configuration indication state received via a physical downlink control channel for the first reference signal or the second reference signal by using the radio resource control signaling.

7 . The apparatus according to claim 6 , wherein,

the information on a transmission configuration indication state includes a transmission configuration indication state identifier.

8 . The apparatus according to claim 1 , wherein the first reference signal does not include a second reference signal for transmission reception point-specific beam failure detection, and a lower layer determines the second reference signal via a transmission configuration indication state received via a physical downlink control channel, and determines that the second reference signal is associated with a control resource set pool.

9 . The apparatus according to claim 1 , wherein the medium access control control element signaling is:

a first medium access control control element for configuring or updating the first reference signal.

10 . The apparatus according to claim 9 , wherein the first medium access control control element comprises at least one piece of the following information:

information on a beam failure detection reference signal set;

information on a reference signal of a beam failure detection reference signal set for beam failure detection;

information on a serving cell;

information on a serving cell list; and

a field used to indicate whether the next octet is the same BFD-RS set information as the BFD-RS information of the current octet.

11 . The apparatus according to claim 10 , wherein, a value of the field being 1 indicates that the next octet is the same set of BFD-RS information as the BFD-RS information of the current octet.

12 . The apparatus according to claim 1 , wherein the processor circuitry is further configured to:

enable a medium access control entity of a terminal equipment to set a counter of a beam failure instance of a beam failure detection reference signal set of a serving cell to be 0 in a case where the medium access control control element signaling is associated with the beam failure detection reference signal set of the serving cell.

13 . The apparatus according to claim 12 , wherein,

if the medium access control control element signaling can update or reconfigure any reference signal for beam failure detection in a beam failure detection reference signal set of a serving cell, the processor circuitry enables the MAC entity to set the counter of the beam failure instance of the beam failure detection reference signal set to be 0.

14 . The apparatus according to claim 12 , wherein,

if a higher layer reconfigures beamFailureDetectionTimer, beamFailureInstanceMaxCount or any reference signal for beam failure detection of a beam failure detection reference signal set of a serving cell, or the medium access control control element signaling updates or reconfigures any reference signal for beam failure detection in the beam failure detection reference signal set of the serving cell, the processor circuitry enables the MAC entity to set the counter of the beam failure instance of the beam failure detection reference signal set to be 0.

15 . The apparatus according to claim 12 , wherein,

if a higher layer reconfigures beamFailureDetectionTimer or beamFailureInstanceMaxCount of a beam failure detection reference signal set of a serving cell, or any reference signal of the beam failure detection reference signal set of the serving cell is reconfigured or updated, the processor circuitry enables the MAC entity to set the counter of the beam failure instance of the beam failure detection reference signal set to be 0.

16 . An apparatus for configuring a beam failure detection reference signal, the apparatus comprising:

a memory that stores a plurality of instructions; and

processor circuitry coupled to the memory and configured to execute the instructions to:

configure reference signal(s) for transmission reception point-specific beam failure detection by using radio resource control signaling; and

configure reference signal(s) for failure detection by using the radio resource control signaling.

17 . The apparatus according to claim 16 , wherein,

the radio resource control signaling includes a first indication field, the first indication field being used for indicating a purpose of the reference signal for failure detection,

wherein if the radio resource control signaling configures reference signal(s) for transmission reception point-specific beam failure detection, a value of the first indication field is configured as being of a radio link failure.

18 . A communication system, comprising a network device and a terminal equipment, wherein,

the network device and/or the terminal equipment is/are configured to:

configure a first reference signal for beam failure detection by using radio resource control signaling, and configure or update the first reference signal by using media access control control element signaling; or

configure reference signal(s) for transmission reception point-specific beam failure detection by using radio resource control signaling, and configure reference signal(s) for failure detection by using the radio resource control signaling.