METHOD AND DEVICE USED IN COMMUNICATION NODE FOR WIRELESS COMMUNICATION

1 . A first node for wireless communications, comprising:

a first receiver, receiving a first signaling, a second signaling and a third signal; and

a first transmitter, generating a first data block in a first radio state; when a first condition set is satisfied, transmitting a first signal; when the first condition set is not satisfied, transmitting a second signal;

wherein the first signaling is used to determine a first threshold, the first threshold is a positive integer; the first signaling is used to determine a first threshold includes: the first signaling comprises the first threshold; the first signaling comprises a RACH-ConfigCommon IE, or, the first signaling comprises a RACH-ConfigCommonTwoStepRA IE; the second signaling is used to determine a second threshold; the second signaling is used to determine a second threshold includes: the second signaling comprises the second threshold; a measurement performed on the third signal is used to determine a first receive quality; the first condition set comprising the first data size is not greater than the first threshold; the first condition set comprising the first receive quality is greater than the second threshold; the first data block comprises more than one bit, and the first data size is equal to a number of bits comprised in the first data block; the first signal is used for a first-type Random Access (RA) procedure, the second signal is used for a second-type RA procedure, and the first-type RA procedure is different from the second-type RA procedure; the first signal carries a first sequence, the second signal carries a second sequence, and the first sequence is different from the second sequence; the first radio state comprises an RRC state; the first threshold is used to determine selecting Small Data Transmission; the first-type RA procedure comprises a 2-Step RACH, the second-type RA procedure comprises a 2-Step RACH; or, the first-type RA procedure comprises a 4-Step RACH, the second-type RA procedure comprises a 4-Step RACH.

2 . The first node according to claim 1 , wherein the first signal comprises a MsgA, and the MsgA comprises the first sequence and a payload; the payload comprises one of an RRCResumeRequest1 message or an RRCResumeRequest message; the payload comprises a Buffer Status Report (BSR).

3 . The first node according to claim 1 , wherein the first radio state comprises an RRC_INACTIVE state; the first signaling comprises a System Information Block1 (SIB1); the second signaling comprises an SIB1; the second signaling is the same as the first signaling.

4 . The first node according to claim 1 , wherein the first-type RA procedure being different from the second-type RA procedure includes: the purpose of the RA in the first-type RA procedure is different from the purpose of the RA in the second-type RA procedure; the purpose of the RA comprises an SDT; the purpose of the RA comprises switching from an RRC inactive state to an RRC connected state.

5 . The first node according to claim 4 , wherein “when a first condition set is satisfied, transmitting a first signal; when the first condition set is not satisfied, transmitting a second signal” includes:

when the first condition set is satisfied, initiating the first-type RA procedure; when the first condition set is not satisfied, initiating the second-type RA procedure.

6 . The first node according to claim 1 , wherein the first sequence comprises a preamble sequence of the first-type RA; the second sequence comprises a preamble sequence of the second-type RA.

7 . The first node according to claim 1 , wherein the first sequence being different from the second sequence includes: the first sequence and the second sequence are associated with different RA preamble groups.

8 . A second node for wireless communications, comprising:

a second transmitter, transmitting a first signaling, a second signaling and a third signal; and

a second receiver, receiving a first signal or a second signal;

wherein when a first condition set is satisfied, the first signal is transmitted by a receiver of the first signaling; when the first condition set is not satisfied, the second signal is transmitted by a receiver of the first signaling; a first data block is generated by the receiver of the first signaling in a first radio state; the first signaling is used to determine a first threshold, the first threshold is a positive integer; the first signaling is used to determine a first threshold includes: the first signaling comprises the first threshold; the first signaling comprises a RACH-ConfigCommon IE, or, the first signaling comprises a RACH-ConfigCommonTwoStepRA IE; the second signaling is used to determine a second threshold; the second signaling is used to determine a second threshold includes: the second signaling comprises the second threshold; a measurement performed on the third signal is used to determine a first receive quality; the first condition set comprising the first data size is not greater than the first threshold; the first condition set comprising the first receive quality is greater than the second threshold; the first data block comprises more than one bit, and the first data size is equal to a number of bits comprised in the first data block; the first signal is used for a first-type RA procedure, the second signal is used for a second-type RA procedure, and the first-type RA procedure is different from the second-type RA procedure; the first signal carries a first sequence, the second signal carries a second sequence, and the first sequence is different from the second sequence; the first radio state comprises an RRC state; the first threshold is used to determine selecting Small Data Transmission; the first-type RA procedure comprises a 2-Step RACH, the second-type RA procedure comprises a 2-Step RACH; or, the first-type RA procedure comprises a 4-Step RACH, the second-type RA procedure comprises a 4-Step RACH.

9 . The second node according to claim 8 , wherein the first signal comprises a MsgA, and the MsgA comprises the first sequence and a payload; the payload comprises one of an RRCResumeRequest1 message or an RRCResumeRequest message; the payload comprises a BSR.

10 . The second node according to claim 8 , wherein the first radio state comprises an RRC_INACTIVE state; the first signaling comprises a System Information Block1 (SIB1); the second signaling comprises an SIB1.

11 . The second node according to claim 8 , wherein the first-type RA procedure being different from the second-type RA procedure includes: the purpose of the RA in the first-type RA procedure is different from the purpose of the RA in the second-type RA procedure; the purpose of the RA comprises an SDT; the purpose of the RA comprises switching from an RRC inactive state to an RRC connected state.

12 . The second node according to claim 8 , wherein “when a first condition set is satisfied, transmitting a first signal; when the first condition set is not satisfied, transmitting a second signal” includes: when the first condition set is satisfied, initiating the first-type RA procedure; when the first condition set is not satisfied, initiating the second-type RA procedure.

13 . The second node according to claim 8 , wherein the first sequence being different from the second sequence includes: the first sequence and the second sequence are associated with different RA preamble groups.

14 . A method in a first node for wireless communications, comprising:

receiving a first signaling, a second signaling and a third signal; and

generating a first data block in a first radio state; when a first condition set is satisfied, transmitting a first signal; when the first condition set is not satisfied, transmitting a second signal;

wherein the first signaling is used to determine a first threshold, the first threshold is a positive integer; the first signaling is used to determine a first threshold includes: the first signaling comprises the first threshold; the first signaling comprises a RACH-ConfigCommon IE, or, the first signaling comprises a RACH-ConfigCommonTwoStepRA IE; the second signaling is used to determine a second threshold; the second signaling is used to determine a second threshold includes: the second signaling comprises the second threshold; a measurement performed on the third signal is used to determine a first receive quality; the first condition set comprising the first data size is not greater than the first threshold; the first condition set comprising the first receive quality is greater than the second threshold; the first data block comprises more than one bit, and the first data size is equal to a number of bits comprised in the first data block; the first signal is used for a first-type RA procedure, the second signal is used for a second-type RA procedure, and the first-type RA procedure is different from the second-type RA procedure; the first signal carries a first sequence, the second signal carries a second sequence, and the first sequence is different from the second sequence; the first radio state comprises an RRC state; the first threshold is used to determine selecting Small Data Transmission; the first-type RA procedure comprises a 2-Step RACH, the second-type RA procedure comprises a 2-Step RACH; or, the first-type RA procedure comprises a 4-Step RACH, the second-type RA procedure comprises a 4-Step RACH.

15 . The method in a first node for wireless communications according to claim 14 , wherein the first signal comprises a MsgA, and the MsgA comprises the first sequence and a payload; the payload comprises one of an RRCResumeRequest1 message or an RRCResumeRequest message; the payload comprises a BSR.

16 . The method in a first node for wireless communications according to claim 14 , wherein the first radio state comprises an RRC_INACTIVE state; the first signaling comprises a System Information Block1 (SIB1); the second signaling comprises an SIB1.

17 . The method in a first node for wireless communications according to claim 14 , wherein the first-type RA procedure being different from the second-type RA procedure includes: the purpose of the RA in the first-type RA procedure is different from the purpose of the RA in the second-type RA procedure; the purpose of the RA comprises an SDT; the purpose of the RA comprises switching from an RRC inactive state to an RRC connected state.

18 . The method in a first node for wireless communications according to claim 17 , wherein “when a first condition set is satisfied, transmitting a first signal; when the first condition set is not satisfied, transmitting a second signal” includes: when the first condition set is satisfied, initiating the first-type RA procedure; when the first condition set is not satisfied, initiating the second-type RA procedure.

19 . The method in a first node for wireless communications according to claim 14 , wherein the first sequence comprises a preamble sequence of the first-type RA; the second sequence comprises a preamble sequence of the second-type RA.

20 . The method in a first node for wireless communications according to claim 14 , wherein the first sequence being different from the second sequence includes: the first sequence and the second sequence are associated with different RA preamble groups.